diff options
Diffstat (limited to 'drivers/net/wireless/quantenna/qtnfmac')
33 files changed, 12689 insertions, 0 deletions
diff --git a/drivers/net/wireless/quantenna/qtnfmac/Kconfig b/drivers/net/wireless/quantenna/qtnfmac/Kconfig new file mode 100644 index 000000000..b4a6df06d --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/Kconfig @@ -0,0 +1,21 @@ +# SPDX-License-Identifier: GPL-2.0-only +config QTNFMAC + tristate + depends on QTNFMAC_PCIE + default m if QTNFMAC_PCIE=m + default y if QTNFMAC_PCIE=y + +config QTNFMAC_PCIE + tristate "Quantenna QSR1000/QSR2000/QSR10g PCIe support" + default n + depends on PCI && CFG80211 + select QTNFMAC + select FW_LOADER + select CRC32 + help + This option adds support for wireless adapters based on Quantenna + 802.11ac QSR10g (aka Pearl) and QSR1000/QSR2000 (aka Topaz) + FullMAC chipsets running over PCIe. + + If you choose to build it as a module, two modules will be built: + qtnfmac.ko and qtnfmac_pcie.ko. diff --git a/drivers/net/wireless/quantenna/qtnfmac/Makefile b/drivers/net/wireless/quantenna/qtnfmac/Makefile new file mode 100644 index 000000000..40dffbd2e --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/Makefile @@ -0,0 +1,30 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Copyright (c) 2015-2016 Quantenna Communications, Inc. +# All rights reserved. +# + +ccflags-y += \ + -Idrivers/net/wireless/quantenna/qtnfmac + +obj-$(CONFIG_QTNFMAC) += qtnfmac.o +qtnfmac-objs += \ + core.o \ + commands.o \ + trans.o \ + cfg80211.o \ + event.o \ + util.o \ + qlink_util.o + +# + +obj-$(CONFIG_QTNFMAC_PCIE) += qtnfmac_pcie.o + +qtnfmac_pcie-objs += \ + shm_ipc.o \ + pcie/pcie.o \ + pcie/pearl_pcie.o \ + pcie/topaz_pcie.o + +qtnfmac_pcie-$(CONFIG_DEBUG_FS) += debug.o diff --git a/drivers/net/wireless/quantenna/qtnfmac/bus.h b/drivers/net/wireless/quantenna/qtnfmac/bus.h new file mode 100644 index 000000000..3334c45aa --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/bus.h @@ -0,0 +1,158 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* Copyright (c) 2015 Quantenna Communications. All rights reserved. */ + +#ifndef QTNFMAC_BUS_H +#define QTNFMAC_BUS_H + +#include <linux/netdevice.h> +#include <linux/workqueue.h> + +#include "trans.h" +#include "core.h" + +#define QTNF_MAX_MAC 3 + +#define HBM_FRAME_META_MAGIC_PATTERN_S 0xAB +#define HBM_FRAME_META_MAGIC_PATTERN_E 0xBA + +struct qtnf_frame_meta_info { + u8 magic_s; + u8 ifidx; + u8 macid; + u8 magic_e; +} __packed; + +enum qtnf_fw_state { + QTNF_FW_STATE_DETACHED, + QTNF_FW_STATE_BOOT_DONE, + QTNF_FW_STATE_ACTIVE, + QTNF_FW_STATE_RUNNING, + QTNF_FW_STATE_DEAD, +}; + +struct qtnf_bus; + +struct qtnf_bus_ops { + /* mgmt methods */ + int (*preinit)(struct qtnf_bus *); + void (*stop)(struct qtnf_bus *); + + /* control path methods */ + int (*control_tx)(struct qtnf_bus *, struct sk_buff *); + + /* data xfer methods */ + int (*data_tx)(struct qtnf_bus *bus, struct sk_buff *skb, + unsigned int macid, unsigned int vifid); + void (*data_tx_timeout)(struct qtnf_bus *, struct net_device *); + void (*data_tx_use_meta_set)(struct qtnf_bus *bus, bool use_meta); + void (*data_rx_start)(struct qtnf_bus *); + void (*data_rx_stop)(struct qtnf_bus *); +}; + +struct qtnf_bus { + struct device *dev; + enum qtnf_fw_state fw_state; + u32 chip; + u32 chiprev; + struct qtnf_bus_ops *bus_ops; + struct qtnf_wmac *mac[QTNF_MAX_MAC]; + struct qtnf_qlink_transport trans; + struct qtnf_hw_info hw_info; + struct napi_struct mux_napi; + struct net_device mux_dev; + struct workqueue_struct *workqueue; + struct workqueue_struct *hprio_workqueue; + struct work_struct fw_work; + struct work_struct event_work; + struct mutex bus_lock; /* lock during command/event processing */ + struct dentry *dbg_dir; + struct notifier_block netdev_nb; + u8 hw_id[ETH_ALEN]; + /* bus private data */ + char bus_priv[] __aligned(sizeof(void *)); +}; + +static inline bool qtnf_fw_is_up(struct qtnf_bus *bus) +{ + enum qtnf_fw_state state = bus->fw_state; + + return ((state == QTNF_FW_STATE_ACTIVE) || + (state == QTNF_FW_STATE_RUNNING)); +} + +static inline bool qtnf_fw_is_attached(struct qtnf_bus *bus) +{ + enum qtnf_fw_state state = bus->fw_state; + + return ((state == QTNF_FW_STATE_ACTIVE) || + (state == QTNF_FW_STATE_RUNNING) || + (state == QTNF_FW_STATE_DEAD)); +} + +static inline void *get_bus_priv(struct qtnf_bus *bus) +{ + if (WARN(!bus, "qtnfmac: invalid bus pointer")) + return NULL; + + return &bus->bus_priv; +} + +/* callback wrappers */ + +static inline int qtnf_bus_preinit(struct qtnf_bus *bus) +{ + if (!bus->bus_ops->preinit) + return 0; + return bus->bus_ops->preinit(bus); +} + +static inline void qtnf_bus_stop(struct qtnf_bus *bus) +{ + if (!bus->bus_ops->stop) + return; + bus->bus_ops->stop(bus); +} + +static inline int qtnf_bus_data_tx(struct qtnf_bus *bus, struct sk_buff *skb, + unsigned int macid, unsigned int vifid) +{ + return bus->bus_ops->data_tx(bus, skb, macid, vifid); +} + +static inline void +qtnf_bus_data_tx_timeout(struct qtnf_bus *bus, struct net_device *ndev) +{ + return bus->bus_ops->data_tx_timeout(bus, ndev); +} + +static inline int qtnf_bus_control_tx(struct qtnf_bus *bus, struct sk_buff *skb) +{ + return bus->bus_ops->control_tx(bus, skb); +} + +static inline void qtnf_bus_data_rx_start(struct qtnf_bus *bus) +{ + return bus->bus_ops->data_rx_start(bus); +} + +static inline void qtnf_bus_data_rx_stop(struct qtnf_bus *bus) +{ + return bus->bus_ops->data_rx_stop(bus); +} + +static __always_inline void qtnf_bus_lock(struct qtnf_bus *bus) +{ + mutex_lock(&bus->bus_lock); +} + +static __always_inline void qtnf_bus_unlock(struct qtnf_bus *bus) +{ + mutex_unlock(&bus->bus_lock); +} + +/* interface functions from common layer */ + +int qtnf_core_attach(struct qtnf_bus *bus); +void qtnf_core_detach(struct qtnf_bus *bus); + +#endif /* QTNFMAC_BUS_H */ diff --git a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c new file mode 100644 index 000000000..73e6f9408 --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c @@ -0,0 +1,1289 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */ + +#include <linux/kernel.h> +#include <linux/etherdevice.h> +#include <linux/vmalloc.h> +#include <linux/ieee80211.h> +#include <net/cfg80211.h> +#include <net/netlink.h> + +#include "cfg80211.h" +#include "commands.h" +#include "core.h" +#include "util.h" +#include "bus.h" + +/* Supported rates to be advertised to the cfg80211 */ +static struct ieee80211_rate qtnf_rates_2g[] = { + {.bitrate = 10, .hw_value = 2, }, + {.bitrate = 20, .hw_value = 4, }, + {.bitrate = 55, .hw_value = 11, }, + {.bitrate = 110, .hw_value = 22, }, + {.bitrate = 60, .hw_value = 12, }, + {.bitrate = 90, .hw_value = 18, }, + {.bitrate = 120, .hw_value = 24, }, + {.bitrate = 180, .hw_value = 36, }, + {.bitrate = 240, .hw_value = 48, }, + {.bitrate = 360, .hw_value = 72, }, + {.bitrate = 480, .hw_value = 96, }, + {.bitrate = 540, .hw_value = 108, }, +}; + +/* Supported rates to be advertised to the cfg80211 */ +static struct ieee80211_rate qtnf_rates_5g[] = { + {.bitrate = 60, .hw_value = 12, }, + {.bitrate = 90, .hw_value = 18, }, + {.bitrate = 120, .hw_value = 24, }, + {.bitrate = 180, .hw_value = 36, }, + {.bitrate = 240, .hw_value = 48, }, + {.bitrate = 360, .hw_value = 72, }, + {.bitrate = 480, .hw_value = 96, }, + {.bitrate = 540, .hw_value = 108, }, +}; + +/* Supported crypto cipher suits to be advertised to cfg80211 */ +static const u32 qtnf_cipher_suites[] = { + WLAN_CIPHER_SUITE_TKIP, + WLAN_CIPHER_SUITE_CCMP, + WLAN_CIPHER_SUITE_AES_CMAC, +}; + +/* Supported mgmt frame types to be advertised to cfg80211 */ +static const struct ieee80211_txrx_stypes +qtnf_mgmt_stypes[NUM_NL80211_IFTYPES] = { + [NL80211_IFTYPE_STATION] = { + .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_AUTH >> 4), + .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | + BIT(IEEE80211_STYPE_AUTH >> 4), + }, + [NL80211_IFTYPE_AP] = { + .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_AUTH >> 4), + .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | + BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | + BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | + BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | + BIT(IEEE80211_STYPE_AUTH >> 4), + }, +}; + +static int +qtnf_validate_iface_combinations(struct wiphy *wiphy, + struct qtnf_vif *change_vif, + enum nl80211_iftype new_type) +{ + struct qtnf_wmac *mac; + struct qtnf_vif *vif; + int i; + int ret = 0; + struct iface_combination_params params = { + .num_different_channels = 1, + }; + + mac = wiphy_priv(wiphy); + if (!mac) + return -EFAULT; + + for (i = 0; i < QTNF_MAX_INTF; i++) { + vif = &mac->iflist[i]; + if (vif->wdev.iftype != NL80211_IFTYPE_UNSPECIFIED) + params.iftype_num[vif->wdev.iftype]++; + } + + if (change_vif) { + params.iftype_num[new_type]++; + params.iftype_num[change_vif->wdev.iftype]--; + } else { + params.iftype_num[new_type]++; + } + + ret = cfg80211_check_combinations(wiphy, ¶ms); + + if (ret) + return ret; + + /* Check repeater interface combination: primary VIF should be STA only. + * STA (primary) + AP (secondary) is OK. + * AP (primary) + STA (secondary) is not supported. + */ + vif = qtnf_mac_get_base_vif(mac); + if (vif && vif->wdev.iftype == NL80211_IFTYPE_AP && + vif != change_vif && new_type == NL80211_IFTYPE_STATION) { + ret = -EINVAL; + pr_err("MAC%u invalid combination: AP as primary repeater interface is not supported\n", + mac->macid); + } + + return ret; +} + +static int +qtnf_change_virtual_intf(struct wiphy *wiphy, + struct net_device *dev, + enum nl80211_iftype type, + struct vif_params *params) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + u8 *mac_addr = NULL; + int use4addr = 0; + int ret; + + ret = qtnf_validate_iface_combinations(wiphy, vif, type); + if (ret) { + pr_err("VIF%u.%u combination check: failed to set type %d\n", + vif->mac->macid, vif->vifid, type); + return ret; + } + + if (params) { + mac_addr = params->macaddr; + use4addr = params->use_4addr; + } + + qtnf_scan_done(vif->mac, true); + + ret = qtnf_cmd_send_change_intf_type(vif, type, use4addr, mac_addr); + if (ret) { + pr_err("VIF%u.%u: failed to change type to %d\n", + vif->mac->macid, vif->vifid, type); + return ret; + } + + vif->wdev.iftype = type; + return 0; +} + +int qtnf_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev) +{ + struct net_device *netdev = wdev->netdev; + struct qtnf_vif *vif; + struct sk_buff *skb; + + if (WARN_ON(!netdev)) + return -EFAULT; + + vif = qtnf_netdev_get_priv(wdev->netdev); + + qtnf_scan_done(vif->mac, true); + + /* Stop data */ + netif_tx_stop_all_queues(netdev); + if (netif_carrier_ok(netdev)) + netif_carrier_off(netdev); + + while ((skb = skb_dequeue(&vif->high_pri_tx_queue))) + dev_kfree_skb_any(skb); + + cancel_work_sync(&vif->high_pri_tx_work); + + if (netdev->reg_state == NETREG_REGISTERED) + cfg80211_unregister_netdevice(netdev); + + if (qtnf_cmd_send_del_intf(vif)) + pr_err("VIF%u.%u: failed to delete VIF\n", vif->mac->macid, + vif->vifid); + + vif->netdev->ieee80211_ptr = NULL; + vif->netdev = NULL; + vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; + + return 0; +} + +static struct wireless_dev *qtnf_add_virtual_intf(struct wiphy *wiphy, + const char *name, + unsigned char name_assign_t, + enum nl80211_iftype type, + struct vif_params *params) +{ + struct qtnf_wmac *mac; + struct qtnf_vif *vif; + u8 *mac_addr = NULL; + int use4addr = 0; + int ret; + + mac = wiphy_priv(wiphy); + + if (!mac) + return ERR_PTR(-EFAULT); + + ret = qtnf_validate_iface_combinations(wiphy, NULL, type); + if (ret) { + pr_err("MAC%u invalid combination: failed to add type %d\n", + mac->macid, type); + return ERR_PTR(ret); + } + + switch (type) { + case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_AP: + vif = qtnf_mac_get_free_vif(mac); + if (!vif) { + pr_err("MAC%u: no free VIF available\n", mac->macid); + return ERR_PTR(-EFAULT); + } + + eth_zero_addr(vif->mac_addr); + eth_zero_addr(vif->bssid); + vif->bss_priority = QTNF_DEF_BSS_PRIORITY; + memset(&vif->wdev, 0, sizeof(vif->wdev)); + vif->wdev.wiphy = wiphy; + vif->wdev.iftype = type; + break; + default: + pr_err("MAC%u: unsupported IF type %d\n", mac->macid, type); + return ERR_PTR(-ENOTSUPP); + } + + if (params) { + mac_addr = params->macaddr; + use4addr = params->use_4addr; + } + + ret = qtnf_cmd_send_add_intf(vif, type, use4addr, mac_addr); + if (ret) { + pr_err("VIF%u.%u: failed to add VIF %pM\n", + mac->macid, vif->vifid, mac_addr); + goto err_cmd; + } + + if (!is_valid_ether_addr(vif->mac_addr)) { + pr_err("VIF%u.%u: FW reported bad MAC: %pM\n", + mac->macid, vif->vifid, vif->mac_addr); + ret = -EINVAL; + goto error_del_vif; + } + + ret = qtnf_core_net_attach(mac, vif, name, name_assign_t); + if (ret) { + pr_err("VIF%u.%u: failed to attach netdev\n", mac->macid, + vif->vifid); + goto error_del_vif; + } + + if (qtnf_hwcap_is_set(&mac->bus->hw_info, QLINK_HW_CAPAB_HW_BRIDGE)) { + ret = qtnf_cmd_netdev_changeupper(vif, vif->netdev->ifindex); + if (ret) { + cfg80211_unregister_netdevice(vif->netdev); + vif->netdev = NULL; + goto error_del_vif; + } + } + + vif->wdev.netdev = vif->netdev; + return &vif->wdev; + +error_del_vif: + qtnf_cmd_send_del_intf(vif); +err_cmd: + vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; + + return ERR_PTR(ret); +} + +static int qtnf_mgmt_set_appie(struct qtnf_vif *vif, + const struct cfg80211_beacon_data *info) +{ + int ret = 0; + + if (!info->beacon_ies || !info->beacon_ies_len) { + ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_IE_SET_BEACON_IES, + NULL, 0); + } else { + ret = qtnf_cmd_send_mgmt_set_appie(vif, QLINK_IE_SET_BEACON_IES, + info->beacon_ies, + info->beacon_ies_len); + } + + if (ret) + goto out; + + if (!info->proberesp_ies || !info->proberesp_ies_len) { + ret = qtnf_cmd_send_mgmt_set_appie(vif, + QLINK_IE_SET_PROBE_RESP_IES, + NULL, 0); + } else { + ret = qtnf_cmd_send_mgmt_set_appie(vif, + QLINK_IE_SET_PROBE_RESP_IES, + info->proberesp_ies, + info->proberesp_ies_len); + } + + if (ret) + goto out; + + if (!info->assocresp_ies || !info->assocresp_ies_len) { + ret = qtnf_cmd_send_mgmt_set_appie(vif, + QLINK_IE_SET_ASSOC_RESP, + NULL, 0); + } else { + ret = qtnf_cmd_send_mgmt_set_appie(vif, + QLINK_IE_SET_ASSOC_RESP, + info->assocresp_ies, + info->assocresp_ies_len); + } + +out: + return ret; +} + +static int qtnf_change_beacon(struct wiphy *wiphy, struct net_device *dev, + struct cfg80211_beacon_data *info) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + + return qtnf_mgmt_set_appie(vif, info); +} + +static int qtnf_start_ap(struct wiphy *wiphy, struct net_device *dev, + struct cfg80211_ap_settings *settings) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + ret = qtnf_cmd_send_start_ap(vif, settings); + if (ret) + pr_err("VIF%u.%u: failed to start AP\n", vif->mac->macid, + vif->vifid); + + return ret; +} + +static int qtnf_stop_ap(struct wiphy *wiphy, struct net_device *dev, + unsigned int link_id) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + qtnf_scan_done(vif->mac, true); + + ret = qtnf_cmd_send_stop_ap(vif); + if (ret) + pr_err("VIF%u.%u: failed to stop AP operation in FW\n", + vif->mac->macid, vif->vifid); + + netif_carrier_off(vif->netdev); + + return ret; +} + +static int qtnf_set_wiphy_params(struct wiphy *wiphy, u32 changed) +{ + struct qtnf_wmac *mac = wiphy_priv(wiphy); + struct qtnf_vif *vif; + int ret; + + vif = qtnf_mac_get_base_vif(mac); + if (!vif) { + pr_err("MAC%u: primary VIF is not configured\n", mac->macid); + return -EFAULT; + } + + ret = qtnf_cmd_send_update_phy_params(mac, changed); + if (ret) + pr_err("MAC%u: failed to update PHY params\n", mac->macid); + + return ret; +} + +static void +qtnf_update_mgmt_frame_registrations(struct wiphy *wiphy, + struct wireless_dev *wdev, + struct mgmt_frame_regs *upd) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); + u16 new_mask = upd->interface_stypes; + u16 old_mask = vif->mgmt_frames_bitmask; + static const struct { + u16 mask, qlink_type; + } updates[] = { + { + .mask = BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | + BIT(IEEE80211_STYPE_ASSOC_REQ >> 4), + .qlink_type = QLINK_MGMT_FRAME_ASSOC_REQ, + }, + { + .mask = BIT(IEEE80211_STYPE_AUTH >> 4), + .qlink_type = QLINK_MGMT_FRAME_AUTH, + }, + { + .mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4), + .qlink_type = QLINK_MGMT_FRAME_PROBE_REQ, + }, + { + .mask = BIT(IEEE80211_STYPE_ACTION >> 4), + .qlink_type = QLINK_MGMT_FRAME_ACTION, + }, + }; + unsigned int i; + + if (new_mask == old_mask) + return; + + for (i = 0; i < ARRAY_SIZE(updates); i++) { + u16 mask = updates[i].mask; + u16 qlink_frame_type = updates[i].qlink_type; + bool reg; + + /* the ! are here due to the assoc/reassoc merge */ + if (!(new_mask & mask) == !(old_mask & mask)) + continue; + + reg = new_mask & mask; + + if (qtnf_cmd_send_register_mgmt(vif, qlink_frame_type, reg)) + pr_warn("VIF%u.%u: failed to %sregister qlink frame type 0x%x\n", + vif->mac->macid, vif->vifid, reg ? "" : "un", + qlink_frame_type); + } + + vif->mgmt_frames_bitmask = new_mask; +} + +static int +qtnf_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, + struct cfg80211_mgmt_tx_params *params, u64 *cookie) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); + const struct ieee80211_mgmt *mgmt_frame = (void *)params->buf; + u32 short_cookie = get_random_u32(); + u16 flags = 0; + u16 freq; + + *cookie = short_cookie; + + if (params->offchan) + flags |= QLINK_FRAME_TX_FLAG_OFFCHAN; + + if (params->no_cck) + flags |= QLINK_FRAME_TX_FLAG_NO_CCK; + + if (params->dont_wait_for_ack) + flags |= QLINK_FRAME_TX_FLAG_ACK_NOWAIT; + + /* If channel is not specified, pass "freq = 0" to tell device + * firmware to use current channel. + */ + if (params->chan) + freq = params->chan->center_freq; + else + freq = 0; + + pr_debug("%s freq:%u; FC:%.4X; DA:%pM; len:%zu; C:%.8X; FL:%.4X\n", + wdev->netdev->name, freq, + le16_to_cpu(mgmt_frame->frame_control), mgmt_frame->da, + params->len, short_cookie, flags); + + return qtnf_cmd_send_frame(vif, short_cookie, flags, + freq, params->buf, params->len); +} + +static int +qtnf_get_station(struct wiphy *wiphy, struct net_device *dev, + const u8 *mac, struct station_info *sinfo) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + + sinfo->generation = vif->generation; + return qtnf_cmd_get_sta_info(vif, mac, sinfo); +} + +static int +qtnf_dump_station(struct wiphy *wiphy, struct net_device *dev, + int idx, u8 *mac, struct station_info *sinfo) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + const struct qtnf_sta_node *sta_node; + int ret; + + switch (vif->wdev.iftype) { + case NL80211_IFTYPE_STATION: + if (idx != 0 || !vif->wdev.connected) + return -ENOENT; + + ether_addr_copy(mac, vif->bssid); + break; + case NL80211_IFTYPE_AP: + sta_node = qtnf_sta_list_lookup_index(&vif->sta_list, idx); + if (unlikely(!sta_node)) + return -ENOENT; + + ether_addr_copy(mac, sta_node->mac_addr); + break; + default: + return -ENOTSUPP; + } + + ret = qtnf_cmd_get_sta_info(vif, mac, sinfo); + + if (vif->wdev.iftype == NL80211_IFTYPE_AP) { + if (ret == -ENOENT) { + cfg80211_del_sta(vif->netdev, mac, GFP_KERNEL); + sinfo->filled = 0; + } + } + + sinfo->generation = vif->generation; + + return ret; +} + +static int qtnf_add_key(struct wiphy *wiphy, struct net_device *dev, + int link_id, u8 key_index, bool pairwise, + const u8 *mac_addr, struct key_params *params) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + ret = qtnf_cmd_send_add_key(vif, key_index, pairwise, mac_addr, params); + if (ret) + pr_err("VIF%u.%u: failed to add key: cipher=%x idx=%u pw=%u\n", + vif->mac->macid, vif->vifid, params->cipher, key_index, + pairwise); + + return ret; +} + +static int qtnf_del_key(struct wiphy *wiphy, struct net_device *dev, + int link_id, u8 key_index, bool pairwise, + const u8 *mac_addr) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + ret = qtnf_cmd_send_del_key(vif, key_index, pairwise, mac_addr); + if (ret) { + if (ret == -ENOENT) { + pr_debug("VIF%u.%u: key index %d out of bounds\n", + vif->mac->macid, vif->vifid, key_index); + } else { + pr_err("VIF%u.%u: failed to delete key: idx=%u pw=%u\n", + vif->mac->macid, vif->vifid, + key_index, pairwise); + } + } + + return ret; +} + +static int qtnf_set_default_key(struct wiphy *wiphy, struct net_device *dev, + int link_id, u8 key_index, bool unicast, + bool multicast) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + ret = qtnf_cmd_send_set_default_key(vif, key_index, unicast, multicast); + if (ret) + pr_err("VIF%u.%u: failed to set dflt key: idx=%u uc=%u mc=%u\n", + vif->mac->macid, vif->vifid, key_index, unicast, + multicast); + + return ret; +} + +static int +qtnf_set_default_mgmt_key(struct wiphy *wiphy, struct net_device *dev, + int link_id, u8 key_index) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + ret = qtnf_cmd_send_set_default_mgmt_key(vif, key_index); + if (ret) + pr_err("VIF%u.%u: failed to set default MGMT key: idx=%u\n", + vif->mac->macid, vif->vifid, key_index); + + return ret; +} + +static int +qtnf_change_station(struct wiphy *wiphy, struct net_device *dev, + const u8 *mac, struct station_parameters *params) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + ret = qtnf_cmd_send_change_sta(vif, mac, params); + if (ret) + pr_err("VIF%u.%u: failed to change STA %pM\n", + vif->mac->macid, vif->vifid, mac); + + return ret; +} + +static int +qtnf_del_station(struct wiphy *wiphy, struct net_device *dev, + struct station_del_parameters *params) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + if (params->mac && + (vif->wdev.iftype == NL80211_IFTYPE_AP) && + !is_broadcast_ether_addr(params->mac) && + !qtnf_sta_list_lookup(&vif->sta_list, params->mac)) + return 0; + + ret = qtnf_cmd_send_del_sta(vif, params); + if (ret) + pr_err("VIF%u.%u: failed to delete STA %pM\n", + vif->mac->macid, vif->vifid, params->mac); + + return ret; +} + +static int +qtnf_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) +{ + struct qtnf_wmac *mac = wiphy_priv(wiphy); + int ret; + + cancel_delayed_work_sync(&mac->scan_timeout); + + mac->scan_req = request; + + ret = qtnf_cmd_send_scan(mac); + if (ret) { + pr_err("MAC%u: failed to start scan\n", mac->macid); + mac->scan_req = NULL; + goto out; + } + + pr_debug("MAC%u: scan started\n", mac->macid); + queue_delayed_work(mac->bus->workqueue, &mac->scan_timeout, + QTNF_SCAN_TIMEOUT_SEC * HZ); + +out: + return ret; +} + +static int +qtnf_connect(struct wiphy *wiphy, struct net_device *dev, + struct cfg80211_connect_params *sme) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + if (vif->wdev.iftype != NL80211_IFTYPE_STATION) + return -EOPNOTSUPP; + + if (sme->auth_type == NL80211_AUTHTYPE_SAE && + !(sme->flags & CONNECT_REQ_EXTERNAL_AUTH_SUPPORT)) { + pr_err("can not offload authentication to userspace\n"); + return -EOPNOTSUPP; + } + + if (sme->bssid) + ether_addr_copy(vif->bssid, sme->bssid); + else + eth_zero_addr(vif->bssid); + + ret = qtnf_cmd_send_connect(vif, sme); + if (ret) + pr_err("VIF%u.%u: failed to connect\n", + vif->mac->macid, vif->vifid); + + return ret; +} + +static int +qtnf_external_auth(struct wiphy *wiphy, struct net_device *dev, + struct cfg80211_external_auth_params *auth) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + if (vif->wdev.iftype == NL80211_IFTYPE_STATION && + !ether_addr_equal(vif->bssid, auth->bssid)) + pr_warn("unexpected bssid: %pM", auth->bssid); + + ret = qtnf_cmd_send_external_auth(vif, auth); + if (ret) + pr_err("VIF%u.%u: failed to report external auth\n", + vif->mac->macid, vif->vifid); + + return ret; +} + +static int +qtnf_disconnect(struct wiphy *wiphy, struct net_device *dev, + u16 reason_code) +{ + struct qtnf_wmac *mac = wiphy_priv(wiphy); + struct qtnf_vif *vif; + int ret = 0; + + vif = qtnf_mac_get_base_vif(mac); + if (!vif) { + pr_err("MAC%u: primary VIF is not configured\n", mac->macid); + return -EFAULT; + } + + if (vif->wdev.iftype != NL80211_IFTYPE_STATION) + return -EOPNOTSUPP; + + ret = qtnf_cmd_send_disconnect(vif, reason_code); + if (ret) + pr_err("VIF%u.%u: failed to disconnect\n", + mac->macid, vif->vifid); + + if (vif->wdev.connected) { + netif_carrier_off(vif->netdev); + cfg80211_disconnected(vif->netdev, reason_code, + NULL, 0, true, GFP_KERNEL); + } + + return ret; +} + +static int +qtnf_dump_survey(struct wiphy *wiphy, struct net_device *dev, + int idx, struct survey_info *survey) +{ + struct qtnf_wmac *mac = wiphy_priv(wiphy); + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct ieee80211_supported_band *sband; + const struct cfg80211_chan_def *chandef = wdev_chandef(wdev, 0); + struct ieee80211_channel *chan; + int ret; + + sband = wiphy->bands[NL80211_BAND_2GHZ]; + if (sband && idx >= sband->n_channels) { + idx -= sband->n_channels; + sband = NULL; + } + + if (!sband) + sband = wiphy->bands[NL80211_BAND_5GHZ]; + + if (!sband || idx >= sband->n_channels) + return -ENOENT; + + chan = &sband->channels[idx]; + survey->channel = chan; + survey->filled = 0x0; + + if (chandef && chan == chandef->chan) + survey->filled = SURVEY_INFO_IN_USE; + + ret = qtnf_cmd_get_chan_stats(mac, chan->center_freq, survey); + if (ret) + pr_debug("failed to get chan(%d) stats from card\n", + chan->hw_value); + + return ret; +} + +static int +qtnf_get_channel(struct wiphy *wiphy, struct wireless_dev *wdev, + unsigned int link_id, struct cfg80211_chan_def *chandef) +{ + struct net_device *ndev = wdev->netdev; + struct qtnf_vif *vif; + int ret; + + if (!ndev) + return -ENODEV; + + vif = qtnf_netdev_get_priv(wdev->netdev); + + ret = qtnf_cmd_get_channel(vif, chandef); + if (ret) { + pr_err("%s: failed to get channel: %d\n", ndev->name, ret); + ret = -ENODATA; + goto out; + } + + if (!cfg80211_chandef_valid(chandef)) { + pr_err("%s: bad channel freq=%u cf1=%u cf2=%u bw=%u\n", + ndev->name, chandef->chan->center_freq, + chandef->center_freq1, chandef->center_freq2, + chandef->width); + ret = -ENODATA; + goto out; + } + +out: + return ret; +} + +static int qtnf_channel_switch(struct wiphy *wiphy, struct net_device *dev, + struct cfg80211_csa_settings *params) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + pr_debug("%s: chan(%u) count(%u) radar(%u) block_tx(%u)\n", dev->name, + params->chandef.chan->hw_value, params->count, + params->radar_required, params->block_tx); + + if (!cfg80211_chandef_valid(¶ms->chandef)) { + pr_err("%s: invalid channel\n", dev->name); + return -EINVAL; + } + + ret = qtnf_cmd_send_chan_switch(vif, params); + if (ret) + pr_warn("%s: failed to switch to channel (%u)\n", + dev->name, params->chandef.chan->hw_value); + + return ret; +} + +static int qtnf_start_radar_detection(struct wiphy *wiphy, + struct net_device *ndev, + struct cfg80211_chan_def *chandef, + u32 cac_time_ms) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); + int ret; + + if (wiphy_ext_feature_isset(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD)) + return -ENOTSUPP; + + ret = qtnf_cmd_start_cac(vif, chandef, cac_time_ms); + if (ret) + pr_err("%s: failed to start CAC ret=%d\n", ndev->name, ret); + + return ret; +} + +static int qtnf_set_mac_acl(struct wiphy *wiphy, + struct net_device *dev, + const struct cfg80211_acl_data *params) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + ret = qtnf_cmd_set_mac_acl(vif, params); + if (ret) + pr_err("%s: failed to set mac ACL ret=%d\n", dev->name, ret); + + return ret; +} + +static int qtnf_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, + bool enabled, int timeout) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + ret = qtnf_cmd_send_pm_set(vif, enabled ? QLINK_PM_AUTO_STANDBY : + QLINK_PM_OFF, timeout); + if (ret) + pr_err("%s: failed to set PM mode ret=%d\n", dev->name, ret); + + return ret; +} + +static int qtnf_get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, + int *dbm) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev); + int ret; + + ret = qtnf_cmd_get_tx_power(vif, dbm); + if (ret) + pr_err("MAC%u: failed to get Tx power\n", vif->mac->macid); + + return ret; +} + +static int qtnf_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, + enum nl80211_tx_power_setting type, int mbm) +{ + struct qtnf_vif *vif; + int ret; + + if (wdev) { + vif = qtnf_netdev_get_priv(wdev->netdev); + } else { + struct qtnf_wmac *mac = wiphy_priv(wiphy); + + vif = qtnf_mac_get_base_vif(mac); + if (!vif) { + pr_err("MAC%u: primary VIF is not configured\n", + mac->macid); + return -EFAULT; + } + } + + ret = qtnf_cmd_set_tx_power(vif, type, mbm); + if (ret) + pr_err("MAC%u: failed to set Tx power\n", vif->mac->macid); + + return ret; +} + +static int qtnf_update_owe_info(struct wiphy *wiphy, struct net_device *dev, + struct cfg80211_update_owe_info *owe_info) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(dev); + int ret; + + if (vif->wdev.iftype != NL80211_IFTYPE_AP) + return -EOPNOTSUPP; + + ret = qtnf_cmd_send_update_owe(vif, owe_info); + if (ret) + pr_err("VIF%u.%u: failed to update owe info\n", + vif->mac->macid, vif->vifid); + + return ret; +} + +#ifdef CONFIG_PM +static int qtnf_suspend(struct wiphy *wiphy, struct cfg80211_wowlan *wowlan) +{ + struct qtnf_wmac *mac = wiphy_priv(wiphy); + struct qtnf_vif *vif; + int ret = 0; + + vif = qtnf_mac_get_base_vif(mac); + if (!vif) { + pr_err("MAC%u: primary VIF is not configured\n", mac->macid); + ret = -EFAULT; + goto exit; + } + + if (!wowlan) { + pr_debug("WoWLAN triggers are not enabled\n"); + qtnf_virtual_intf_cleanup(vif->netdev); + goto exit; + } + + qtnf_scan_done(vif->mac, true); + + ret = qtnf_cmd_send_wowlan_set(vif, wowlan); + if (ret) { + pr_err("MAC%u: failed to set WoWLAN triggers\n", + mac->macid); + goto exit; + } + +exit: + return ret; +} + +static int qtnf_resume(struct wiphy *wiphy) +{ + struct qtnf_wmac *mac = wiphy_priv(wiphy); + struct qtnf_vif *vif; + int ret = 0; + + vif = qtnf_mac_get_base_vif(mac); + if (!vif) { + pr_err("MAC%u: primary VIF is not configured\n", mac->macid); + return -EFAULT; + } + + ret = qtnf_cmd_send_wowlan_set(vif, NULL); + if (ret) + pr_err("MAC%u: failed to reset WoWLAN triggers\n", + mac->macid); + + return ret; +} + +static void qtnf_set_wakeup(struct wiphy *wiphy, bool enabled) +{ + struct qtnf_wmac *mac = wiphy_priv(wiphy); + struct qtnf_bus *bus = mac->bus; + + device_set_wakeup_enable(bus->dev, enabled); +} +#endif + +static struct cfg80211_ops qtn_cfg80211_ops = { + .add_virtual_intf = qtnf_add_virtual_intf, + .change_virtual_intf = qtnf_change_virtual_intf, + .del_virtual_intf = qtnf_del_virtual_intf, + .start_ap = qtnf_start_ap, + .change_beacon = qtnf_change_beacon, + .stop_ap = qtnf_stop_ap, + .set_wiphy_params = qtnf_set_wiphy_params, + .update_mgmt_frame_registrations = + qtnf_update_mgmt_frame_registrations, + .mgmt_tx = qtnf_mgmt_tx, + .change_station = qtnf_change_station, + .del_station = qtnf_del_station, + .get_station = qtnf_get_station, + .dump_station = qtnf_dump_station, + .add_key = qtnf_add_key, + .del_key = qtnf_del_key, + .set_default_key = qtnf_set_default_key, + .set_default_mgmt_key = qtnf_set_default_mgmt_key, + .scan = qtnf_scan, + .connect = qtnf_connect, + .external_auth = qtnf_external_auth, + .disconnect = qtnf_disconnect, + .dump_survey = qtnf_dump_survey, + .get_channel = qtnf_get_channel, + .channel_switch = qtnf_channel_switch, + .start_radar_detection = qtnf_start_radar_detection, + .set_mac_acl = qtnf_set_mac_acl, + .set_power_mgmt = qtnf_set_power_mgmt, + .get_tx_power = qtnf_get_tx_power, + .set_tx_power = qtnf_set_tx_power, + .update_owe_info = qtnf_update_owe_info, +#ifdef CONFIG_PM + .suspend = qtnf_suspend, + .resume = qtnf_resume, + .set_wakeup = qtnf_set_wakeup, +#endif +}; + +static void qtnf_cfg80211_reg_notifier(struct wiphy *wiphy, + struct regulatory_request *req) +{ + struct qtnf_wmac *mac = wiphy_priv(wiphy); + enum nl80211_band band; + int ret; + + pr_debug("MAC%u: initiator=%d alpha=%c%c\n", mac->macid, req->initiator, + req->alpha2[0], req->alpha2[1]); + + ret = qtnf_cmd_reg_notify(mac, req, qtnf_slave_radar_get(), + qtnf_dfs_offload_get()); + if (ret) { + pr_err("MAC%u: failed to update region to %c%c: %d\n", + mac->macid, req->alpha2[0], req->alpha2[1], ret); + return; + } + + for (band = 0; band < NUM_NL80211_BANDS; ++band) { + if (!wiphy->bands[band]) + continue; + + ret = qtnf_cmd_band_info_get(mac, wiphy->bands[band]); + if (ret) + pr_err("MAC%u: failed to update band %u\n", + mac->macid, band); + } +} + +struct wiphy *qtnf_wiphy_allocate(struct qtnf_bus *bus, + struct platform_device *pdev) +{ + struct wiphy *wiphy; + + if (qtnf_dfs_offload_get() && + qtnf_hwcap_is_set(&bus->hw_info, QLINK_HW_CAPAB_DFS_OFFLOAD)) + qtn_cfg80211_ops.start_radar_detection = NULL; + + if (!qtnf_hwcap_is_set(&bus->hw_info, QLINK_HW_CAPAB_PWR_MGMT)) + qtn_cfg80211_ops.set_power_mgmt = NULL; + + wiphy = wiphy_new(&qtn_cfg80211_ops, sizeof(struct qtnf_wmac)); + if (!wiphy) + return NULL; + + if (pdev) + set_wiphy_dev(wiphy, &pdev->dev); + else + set_wiphy_dev(wiphy, bus->dev); + + return wiphy; +} + +static int +qtnf_wiphy_setup_if_comb(struct wiphy *wiphy, struct qtnf_mac_info *mac_info) +{ + struct ieee80211_iface_combination *if_comb; + size_t n_if_comb; + u16 interface_modes = 0; + size_t i, j; + + if_comb = mac_info->if_comb; + n_if_comb = mac_info->n_if_comb; + + if (!if_comb || !n_if_comb) + return -ENOENT; + + for (i = 0; i < n_if_comb; i++) { + if_comb[i].radar_detect_widths = mac_info->radar_detect_widths; + + for (j = 0; j < if_comb[i].n_limits; j++) + interface_modes |= if_comb[i].limits[j].types; + } + + wiphy->iface_combinations = if_comb; + wiphy->n_iface_combinations = n_if_comb; + wiphy->interface_modes = interface_modes; + + return 0; +} + +int qtnf_wiphy_register(struct qtnf_hw_info *hw_info, struct qtnf_wmac *mac) +{ + struct wiphy *wiphy = priv_to_wiphy(mac); + struct qtnf_mac_info *macinfo = &mac->macinfo; + int ret; + bool regdomain_is_known; + + if (!wiphy) { + pr_err("invalid wiphy pointer\n"); + return -EFAULT; + } + + wiphy->frag_threshold = macinfo->frag_thr; + wiphy->rts_threshold = macinfo->rts_thr; + wiphy->retry_short = macinfo->sretry_limit; + wiphy->retry_long = macinfo->lretry_limit; + wiphy->coverage_class = macinfo->coverage_class; + + wiphy->max_scan_ssids = + (macinfo->max_scan_ssids) ? macinfo->max_scan_ssids : 1; + wiphy->max_scan_ie_len = QTNF_MAX_VSIE_LEN; + wiphy->mgmt_stypes = qtnf_mgmt_stypes; + wiphy->max_remain_on_channel_duration = 5000; + wiphy->max_acl_mac_addrs = macinfo->max_acl_mac_addrs; + wiphy->max_num_csa_counters = 2; + + ret = qtnf_wiphy_setup_if_comb(wiphy, macinfo); + if (ret) + goto out; + + /* Initialize cipher suits */ + wiphy->cipher_suites = qtnf_cipher_suites; + wiphy->n_cipher_suites = ARRAY_SIZE(qtnf_cipher_suites); + wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; + wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | + WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD | + WIPHY_FLAG_AP_UAPSD | + WIPHY_FLAG_HAS_CHANNEL_SWITCH | + WIPHY_FLAG_4ADDR_STATION | + WIPHY_FLAG_NETNS_OK; + wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; + + if (qtnf_dfs_offload_get() && + qtnf_hwcap_is_set(hw_info, QLINK_HW_CAPAB_DFS_OFFLOAD)) + wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD); + + if (qtnf_hwcap_is_set(hw_info, QLINK_HW_CAPAB_SCAN_DWELL)) + wiphy_ext_feature_set(wiphy, + NL80211_EXT_FEATURE_SET_SCAN_DWELL); + + wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | + NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2; + + wiphy->available_antennas_tx = macinfo->num_tx_chain; + wiphy->available_antennas_rx = macinfo->num_rx_chain; + + wiphy->max_ap_assoc_sta = macinfo->max_ap_assoc_sta; + wiphy->ht_capa_mod_mask = &macinfo->ht_cap_mod_mask; + wiphy->vht_capa_mod_mask = &macinfo->vht_cap_mod_mask; + + ether_addr_copy(wiphy->perm_addr, mac->macaddr); + + if (qtnf_hwcap_is_set(hw_info, QLINK_HW_CAPAB_STA_INACT_TIMEOUT)) + wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; + + if (qtnf_hwcap_is_set(hw_info, QLINK_HW_CAPAB_SCAN_RANDOM_MAC_ADDR)) + wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR; + + if (!qtnf_hwcap_is_set(hw_info, QLINK_HW_CAPAB_OBSS_SCAN)) + wiphy->features |= NL80211_FEATURE_NEED_OBSS_SCAN; + + if (qtnf_hwcap_is_set(hw_info, QLINK_HW_CAPAB_SAE)) + wiphy->features |= NL80211_FEATURE_SAE; + +#ifdef CONFIG_PM + if (macinfo->wowlan) + wiphy->wowlan = macinfo->wowlan; +#endif + + regdomain_is_known = isalpha(mac->rd->alpha2[0]) && + isalpha(mac->rd->alpha2[1]); + + if (qtnf_hwcap_is_set(hw_info, QLINK_HW_CAPAB_REG_UPDATE)) { + wiphy->reg_notifier = qtnf_cfg80211_reg_notifier; + + if (mac->rd->alpha2[0] == '9' && mac->rd->alpha2[1] == '9') { + wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | + REGULATORY_STRICT_REG; + wiphy_apply_custom_regulatory(wiphy, mac->rd); + } else if (regdomain_is_known) { + wiphy->regulatory_flags |= REGULATORY_STRICT_REG; + } + } else { + wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; + } + + if (mac->macinfo.extended_capabilities_len) { + wiphy->extended_capabilities = + mac->macinfo.extended_capabilities; + wiphy->extended_capabilities_mask = + mac->macinfo.extended_capabilities_mask; + wiphy->extended_capabilities_len = + mac->macinfo.extended_capabilities_len; + } + + strscpy(wiphy->fw_version, hw_info->fw_version, + sizeof(wiphy->fw_version)); + wiphy->hw_version = hw_info->hw_version; + + ret = wiphy_register(wiphy); + if (ret < 0) + goto out; + + if (wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED) + ret = regulatory_set_wiphy_regd(wiphy, mac->rd); + else if (regdomain_is_known) + ret = regulatory_hint(wiphy, mac->rd->alpha2); + +out: + return ret; +} + +void qtnf_netdev_updown(struct net_device *ndev, bool up) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); + + if (qtnf_cmd_send_updown_intf(vif, up)) + pr_err("failed to send %s command to VIF%u.%u\n", + up ? "UP" : "DOWN", vif->mac->macid, vif->vifid); +} + +void qtnf_virtual_intf_cleanup(struct net_device *ndev) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); + struct qtnf_wmac *mac = wiphy_priv(vif->wdev.wiphy); + + if (vif->wdev.iftype == NL80211_IFTYPE_STATION) + qtnf_disconnect(vif->wdev.wiphy, ndev, + WLAN_REASON_DEAUTH_LEAVING); + + qtnf_scan_done(mac, true); +} + +void qtnf_cfg80211_vif_reset(struct qtnf_vif *vif) +{ + if (vif->wdev.iftype == NL80211_IFTYPE_STATION) + cfg80211_disconnected(vif->netdev, WLAN_REASON_DEAUTH_LEAVING, + NULL, 0, 1, GFP_KERNEL); + + cfg80211_shutdown_all_interfaces(vif->wdev.wiphy); +} + +void qtnf_band_init_rates(struct ieee80211_supported_band *band) +{ + switch (band->band) { + case NL80211_BAND_2GHZ: + band->bitrates = qtnf_rates_2g; + band->n_bitrates = ARRAY_SIZE(qtnf_rates_2g); + break; + case NL80211_BAND_5GHZ: + band->bitrates = qtnf_rates_5g; + band->n_bitrates = ARRAY_SIZE(qtnf_rates_5g); + break; + default: + band->bitrates = NULL; + band->n_bitrates = 0; + break; + } +} diff --git a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.h b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.h new file mode 100644 index 000000000..c37485728 --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */ + +#ifndef _QTN_FMAC_CFG80211_H_ +#define _QTN_FMAC_CFG80211_H_ + +#include <net/cfg80211.h> + +#include "core.h" + +int qtnf_wiphy_register(struct qtnf_hw_info *hw_info, struct qtnf_wmac *mac); +int qtnf_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev); +void qtnf_cfg80211_vif_reset(struct qtnf_vif *vif); +void qtnf_band_init_rates(struct ieee80211_supported_band *band); +void qtnf_band_setup_htvht_caps(struct qtnf_mac_info *macinfo, + struct ieee80211_supported_band *band); + +#endif /* _QTN_FMAC_CFG80211_H_ */ diff --git a/drivers/net/wireless/quantenna/qtnfmac/commands.c b/drivers/net/wireless/quantenna/qtnfmac/commands.c new file mode 100644 index 000000000..b1b73478d --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/commands.c @@ -0,0 +1,2768 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */ + +#include <linux/types.h> +#include <linux/skbuff.h> + +#include "cfg80211.h" +#include "core.h" +#include "qlink.h" +#include "qlink_util.h" +#include "bus.h" +#include "commands.h" + +/* Let device itself to select best values for current conditions */ +#define QTNF_SCAN_TIME_AUTO 0 + +#define QTNF_SCAN_DWELL_ACTIVE_DEFAULT 90 +#define QTNF_SCAN_DWELL_PASSIVE_DEFAULT 100 +#define QTNF_SCAN_SAMPLE_DURATION_DEFAULT QTNF_SCAN_TIME_AUTO + +static int qtnf_cmd_check_reply_header(const struct qlink_resp *resp, + u16 cmd_id, u8 mac_id, u8 vif_id, + size_t resp_size) +{ + if (unlikely(le16_to_cpu(resp->cmd_id) != cmd_id)) { + pr_warn("VIF%u.%u CMD%x: bad cmd_id in response: 0x%.4X\n", + mac_id, vif_id, cmd_id, le16_to_cpu(resp->cmd_id)); + return -EINVAL; + } + + if (unlikely(resp->macid != mac_id)) { + pr_warn("VIF%u.%u CMD%x: bad MAC in response: %u\n", + mac_id, vif_id, cmd_id, resp->macid); + return -EINVAL; + } + + if (unlikely(resp->vifid != vif_id)) { + pr_warn("VIF%u.%u CMD%x: bad VIF in response: %u\n", + mac_id, vif_id, cmd_id, resp->vifid); + return -EINVAL; + } + + if (unlikely(le16_to_cpu(resp->mhdr.len) < resp_size)) { + pr_warn("VIF%u.%u CMD%x: bad response size %u < %zu\n", + mac_id, vif_id, cmd_id, + le16_to_cpu(resp->mhdr.len), resp_size); + return -ENOSPC; + } + + return 0; +} + +static int qtnf_cmd_resp_result_decode(enum qlink_cmd_result qcode) +{ + switch (qcode) { + case QLINK_CMD_RESULT_OK: + return 0; + case QLINK_CMD_RESULT_INVALID: + return -EINVAL; + case QLINK_CMD_RESULT_ENOTSUPP: + return -ENOTSUPP; + case QLINK_CMD_RESULT_ENOTFOUND: + return -ENOENT; + case QLINK_CMD_RESULT_EALREADY: + return -EALREADY; + case QLINK_CMD_RESULT_EADDRINUSE: + return -EADDRINUSE; + case QLINK_CMD_RESULT_EADDRNOTAVAIL: + return -EADDRNOTAVAIL; + case QLINK_CMD_RESULT_EBUSY: + return -EBUSY; + default: + return -EFAULT; + } +} + +static int qtnf_cmd_send_with_reply(struct qtnf_bus *bus, + struct sk_buff *cmd_skb, + struct sk_buff **response_skb, + size_t const_resp_size, + size_t *var_resp_size) +{ + struct qlink_cmd *cmd; + struct qlink_resp *resp = NULL; + struct sk_buff *resp_skb = NULL; + int resp_res = 0; + u16 cmd_id; + u8 mac_id; + u8 vif_id; + int ret; + + cmd = (struct qlink_cmd *)cmd_skb->data; + cmd_id = le16_to_cpu(cmd->cmd_id); + mac_id = cmd->macid; + vif_id = cmd->vifid; + cmd->mhdr.len = cpu_to_le16(cmd_skb->len); + + pr_debug("VIF%u.%u cmd=0x%.4X\n", mac_id, vif_id, cmd_id); + + if (!qtnf_fw_is_up(bus) && cmd_id != QLINK_CMD_FW_INIT) { + pr_warn("VIF%u.%u: drop cmd 0x%.4X in fw state %d\n", + mac_id, vif_id, cmd_id, bus->fw_state); + dev_kfree_skb(cmd_skb); + return -ENODEV; + } + + ret = qtnf_trans_send_cmd_with_resp(bus, cmd_skb, &resp_skb); + if (ret) + goto out; + + if (WARN_ON(!resp_skb || !resp_skb->data)) { + ret = -EFAULT; + goto out; + } + + resp = (struct qlink_resp *)resp_skb->data; + resp_res = le16_to_cpu(resp->result); + ret = qtnf_cmd_check_reply_header(resp, cmd_id, mac_id, vif_id, + const_resp_size); + if (ret) + goto out; + + /* Return length of variable part of response */ + if (response_skb && var_resp_size) + *var_resp_size = le16_to_cpu(resp->mhdr.len) - const_resp_size; + +out: + if (response_skb) + *response_skb = resp_skb; + else + consume_skb(resp_skb); + + if (!ret) + return qtnf_cmd_resp_result_decode(resp_res); + + pr_warn("VIF%u.%u: cmd 0x%.4X failed: %d\n", + mac_id, vif_id, cmd_id, ret); + + return ret; +} + +static inline int qtnf_cmd_send(struct qtnf_bus *bus, struct sk_buff *cmd_skb) +{ + return qtnf_cmd_send_with_reply(bus, cmd_skb, NULL, + sizeof(struct qlink_resp), NULL); +} + +static struct sk_buff *qtnf_cmd_alloc_new_cmdskb(u8 macid, u8 vifid, u16 cmd_no, + size_t cmd_size) +{ + struct qlink_cmd *cmd; + struct sk_buff *cmd_skb; + + cmd_skb = __dev_alloc_skb(sizeof(*cmd) + + QTNF_MAX_CMD_BUF_SIZE, GFP_KERNEL); + if (unlikely(!cmd_skb)) { + pr_err("VIF%u.%u CMD %u: alloc failed\n", macid, vifid, cmd_no); + return NULL; + } + + skb_put_zero(cmd_skb, cmd_size); + + cmd = (struct qlink_cmd *)cmd_skb->data; + cmd->mhdr.len = cpu_to_le16(cmd_skb->len); + cmd->mhdr.type = cpu_to_le16(QLINK_MSG_TYPE_CMD); + cmd->cmd_id = cpu_to_le16(cmd_no); + cmd->macid = macid; + cmd->vifid = vifid; + + return cmd_skb; +} + +static void qtnf_cmd_tlv_ie_set_add(struct sk_buff *cmd_skb, u8 frame_type, + const u8 *buf, size_t len) +{ + struct qlink_tlv_ie_set *tlv; + + tlv = (struct qlink_tlv_ie_set *)skb_put(cmd_skb, sizeof(*tlv) + + round_up(len, QLINK_ALIGN)); + tlv->hdr.type = cpu_to_le16(QTN_TLV_ID_IE_SET); + tlv->hdr.len = cpu_to_le16(len + sizeof(*tlv) - sizeof(tlv->hdr)); + tlv->type = frame_type; + tlv->flags = 0; + + if (len && buf) + memcpy(tlv->ie_data, buf, len); +} + +static bool qtnf_cmd_start_ap_can_fit(const struct qtnf_vif *vif, + const struct cfg80211_ap_settings *s) +{ + unsigned int len = sizeof(struct qlink_cmd_start_ap); + + len += round_up(s->ssid_len, QLINK_ALIGN); + len += round_up(s->beacon.head_len, QLINK_ALIGN); + len += round_up(s->beacon.tail_len, QLINK_ALIGN); + len += round_up(s->beacon.beacon_ies_len, QLINK_ALIGN); + len += round_up(s->beacon.proberesp_ies_len, QLINK_ALIGN); + len += round_up(s->beacon.assocresp_ies_len, QLINK_ALIGN); + len += round_up(s->beacon.probe_resp_len, QLINK_ALIGN); + + if (cfg80211_chandef_valid(&s->chandef)) + len += sizeof(struct qlink_tlv_chandef); + + if (s->acl) { + unsigned int acl_len = struct_size(s->acl, mac_addrs, + s->acl->n_acl_entries); + + len += sizeof(struct qlink_tlv_hdr) + + round_up(acl_len, QLINK_ALIGN); + } + + if (len > (sizeof(struct qlink_cmd) + QTNF_MAX_CMD_BUF_SIZE)) { + pr_err("VIF%u.%u: can not fit AP settings: %u\n", + vif->mac->macid, vif->vifid, len); + return false; + } + + return true; +} + +static void qtnf_cmd_tlv_ie_ext_add(struct sk_buff *cmd_skb, u8 eid_ext, + const void *buf, size_t len) +{ + struct qlink_tlv_ext_ie *tlv; + + tlv = (struct qlink_tlv_ext_ie *)skb_put(cmd_skb, sizeof(*tlv) + len); + tlv->hdr.type = cpu_to_le16(WLAN_EID_EXTENSION); + tlv->hdr.len = cpu_to_le16(sizeof(*tlv) + len - sizeof(tlv->hdr)); + tlv->eid_ext = eid_ext; + + if (len && buf) + memcpy(tlv->ie_data, buf, len); +} + +int qtnf_cmd_send_start_ap(struct qtnf_vif *vif, + const struct cfg80211_ap_settings *s) +{ + struct sk_buff *cmd_skb; + struct qlink_cmd_start_ap *cmd; + struct qlink_auth_encr *aen; + int ret; + int i; + int n; + + if (!qtnf_cmd_start_ap_can_fit(vif, s)) + return -E2BIG; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_START_AP, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + cmd = (struct qlink_cmd_start_ap *)cmd_skb->data; + cmd->dtim_period = s->dtim_period; + cmd->beacon_interval = cpu_to_le16(s->beacon_interval); + cmd->hidden_ssid = qlink_hidden_ssid_nl2q(s->hidden_ssid); + cmd->inactivity_timeout = cpu_to_le16(s->inactivity_timeout); + cmd->smps_mode = s->smps_mode; + cmd->p2p_ctwindow = s->p2p_ctwindow; + cmd->p2p_opp_ps = s->p2p_opp_ps; + cmd->pbss = s->pbss; + cmd->ht_required = s->ht_required; + cmd->vht_required = s->vht_required; + cmd->twt_responder = s->twt_responder; + if (s->he_obss_pd.enable) { + cmd->sr_params.sr_control |= QLINK_SR_SRG_INFORMATION_PRESENT; + cmd->sr_params.srg_obss_pd_min_offset = + s->he_obss_pd.min_offset; + cmd->sr_params.srg_obss_pd_max_offset = + s->he_obss_pd.max_offset; + } + + aen = &cmd->aen; + aen->auth_type = s->auth_type; + aen->privacy = !!s->privacy; + aen->wpa_versions = cpu_to_le32(s->crypto.wpa_versions); + aen->cipher_group = cpu_to_le32(s->crypto.cipher_group); + aen->n_ciphers_pairwise = cpu_to_le32(s->crypto.n_ciphers_pairwise); + for (i = 0; i < QLINK_MAX_NR_CIPHER_SUITES; i++) + aen->ciphers_pairwise[i] = + cpu_to_le32(s->crypto.ciphers_pairwise[i]); + n = min(QLINK_MAX_NR_AKM_SUITES, s->crypto.n_akm_suites); + aen->n_akm_suites = cpu_to_le32(n); + for (i = 0; i < n; i++) + aen->akm_suites[i] = cpu_to_le32(s->crypto.akm_suites[i]); + aen->control_port = s->crypto.control_port; + aen->control_port_no_encrypt = s->crypto.control_port_no_encrypt; + aen->control_port_ethertype = + cpu_to_le16(be16_to_cpu(s->crypto.control_port_ethertype)); + + if (s->ssid && s->ssid_len > 0 && s->ssid_len <= IEEE80211_MAX_SSID_LEN) + qtnf_cmd_skb_put_tlv_arr(cmd_skb, WLAN_EID_SSID, s->ssid, + s->ssid_len); + + if (cfg80211_chandef_valid(&s->chandef)) { + struct qlink_tlv_chandef *chtlv = + (struct qlink_tlv_chandef *)skb_put(cmd_skb, + sizeof(*chtlv)); + + chtlv->hdr.type = cpu_to_le16(QTN_TLV_ID_CHANDEF); + chtlv->hdr.len = cpu_to_le16(sizeof(*chtlv) - + sizeof(chtlv->hdr)); + qlink_chandef_cfg2q(&s->chandef, &chtlv->chdef); + } + + qtnf_cmd_tlv_ie_set_add(cmd_skb, QLINK_IE_SET_BEACON_HEAD, + s->beacon.head, s->beacon.head_len); + qtnf_cmd_tlv_ie_set_add(cmd_skb, QLINK_IE_SET_BEACON_TAIL, + s->beacon.tail, s->beacon.tail_len); + qtnf_cmd_tlv_ie_set_add(cmd_skb, QLINK_IE_SET_BEACON_IES, + s->beacon.beacon_ies, s->beacon.beacon_ies_len); + qtnf_cmd_tlv_ie_set_add(cmd_skb, QLINK_IE_SET_PROBE_RESP, + s->beacon.probe_resp, s->beacon.probe_resp_len); + qtnf_cmd_tlv_ie_set_add(cmd_skb, QLINK_IE_SET_PROBE_RESP_IES, + s->beacon.proberesp_ies, + s->beacon.proberesp_ies_len); + qtnf_cmd_tlv_ie_set_add(cmd_skb, QLINK_IE_SET_ASSOC_RESP, + s->beacon.assocresp_ies, + s->beacon.assocresp_ies_len); + + if (s->ht_cap) { + struct qlink_tlv_hdr *tlv = (struct qlink_tlv_hdr *) + skb_put(cmd_skb, sizeof(*tlv) + + round_up(sizeof(*s->ht_cap), QLINK_ALIGN)); + + tlv->type = cpu_to_le16(WLAN_EID_HT_CAPABILITY); + tlv->len = cpu_to_le16(sizeof(*s->ht_cap)); + memcpy(tlv->val, s->ht_cap, sizeof(*s->ht_cap)); + } + + if (s->vht_cap) { + struct qlink_tlv_hdr *tlv = (struct qlink_tlv_hdr *) + skb_put(cmd_skb, sizeof(*tlv) + sizeof(*s->vht_cap)); + + tlv->type = cpu_to_le16(WLAN_EID_VHT_CAPABILITY); + tlv->len = cpu_to_le16(sizeof(*s->vht_cap)); + memcpy(tlv->val, s->vht_cap, sizeof(*s->vht_cap)); + } + + if (s->he_cap) + qtnf_cmd_tlv_ie_ext_add(cmd_skb, WLAN_EID_EXT_HE_CAPABILITY, + s->he_cap, sizeof(*s->he_cap)); + + if (s->acl) { + size_t acl_size = struct_size(s->acl, mac_addrs, + s->acl->n_acl_entries); + struct qlink_tlv_hdr *tlv = + skb_put(cmd_skb, + sizeof(*tlv) + round_up(acl_size, QLINK_ALIGN)); + + tlv->type = cpu_to_le16(QTN_TLV_ID_ACL_DATA); + tlv->len = cpu_to_le16(acl_size); + qlink_acl_data_cfg2q(s->acl, (struct qlink_acl_data *)tlv->val); + } + + qtnf_bus_lock(vif->mac->bus); + ret = qtnf_cmd_send(vif->mac->bus, cmd_skb); + if (ret) + goto out; + + netif_carrier_on(vif->netdev); + +out: + qtnf_bus_unlock(vif->mac->bus); + + return ret; +} + +int qtnf_cmd_send_stop_ap(struct qtnf_vif *vif) +{ + struct sk_buff *cmd_skb; + int ret; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_STOP_AP, + sizeof(struct qlink_cmd)); + if (!cmd_skb) + return -ENOMEM; + + qtnf_bus_lock(vif->mac->bus); + ret = qtnf_cmd_send(vif->mac->bus, cmd_skb); + qtnf_bus_unlock(vif->mac->bus); + + return ret; +} + +int qtnf_cmd_send_register_mgmt(struct qtnf_vif *vif, u16 frame_type, bool reg) +{ + struct sk_buff *cmd_skb; + struct qlink_cmd_mgmt_frame_register *cmd; + int ret; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_REGISTER_MGMT, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + qtnf_bus_lock(vif->mac->bus); + + cmd = (struct qlink_cmd_mgmt_frame_register *)cmd_skb->data; + cmd->frame_type = cpu_to_le16(frame_type); + cmd->do_register = reg; + + ret = qtnf_cmd_send(vif->mac->bus, cmd_skb); + + qtnf_bus_unlock(vif->mac->bus); + + return ret; +} + +int qtnf_cmd_send_frame(struct qtnf_vif *vif, u32 cookie, u16 flags, + u16 freq, const u8 *buf, size_t len) +{ + struct sk_buff *cmd_skb; + struct qlink_cmd_frame_tx *cmd; + int ret; + + if (sizeof(*cmd) + len > QTNF_MAX_CMD_BUF_SIZE) { + pr_warn("VIF%u.%u: frame is too big: %zu\n", vif->mac->macid, + vif->vifid, len); + return -E2BIG; + } + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_SEND_FRAME, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + qtnf_bus_lock(vif->mac->bus); + + cmd = (struct qlink_cmd_frame_tx *)cmd_skb->data; + cmd->cookie = cpu_to_le32(cookie); + cmd->freq = cpu_to_le16(freq); + cmd->flags = cpu_to_le16(flags); + + if (len && buf) + qtnf_cmd_skb_put_buffer(cmd_skb, buf, len); + + ret = qtnf_cmd_send(vif->mac->bus, cmd_skb); + + qtnf_bus_unlock(vif->mac->bus); + + return ret; +} + +int qtnf_cmd_send_mgmt_set_appie(struct qtnf_vif *vif, u8 frame_type, + const u8 *buf, size_t len) +{ + struct sk_buff *cmd_skb; + int ret; + + if (len > QTNF_MAX_CMD_BUF_SIZE) { + pr_warn("VIF%u.%u: %u frame is too big: %zu\n", vif->mac->macid, + vif->vifid, frame_type, len); + return -E2BIG; + } + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_MGMT_SET_APPIE, + sizeof(struct qlink_cmd)); + if (!cmd_skb) + return -ENOMEM; + + qtnf_cmd_tlv_ie_set_add(cmd_skb, frame_type, buf, len); + + qtnf_bus_lock(vif->mac->bus); + ret = qtnf_cmd_send(vif->mac->bus, cmd_skb); + qtnf_bus_unlock(vif->mac->bus); + + return ret; +} + +static void +qtnf_sta_info_parse_rate(struct rate_info *rate_dst, + const struct qlink_sta_info_rate *rate_src) +{ + rate_dst->legacy = get_unaligned_le16(&rate_src->rate) * 10; + + rate_dst->mcs = rate_src->mcs; + rate_dst->nss = rate_src->nss; + rate_dst->flags = 0; + + switch (rate_src->bw) { + case QLINK_CHAN_WIDTH_5: + rate_dst->bw = RATE_INFO_BW_5; + break; + case QLINK_CHAN_WIDTH_10: + rate_dst->bw = RATE_INFO_BW_10; + break; + case QLINK_CHAN_WIDTH_20: + case QLINK_CHAN_WIDTH_20_NOHT: + rate_dst->bw = RATE_INFO_BW_20; + break; + case QLINK_CHAN_WIDTH_40: + rate_dst->bw = RATE_INFO_BW_40; + break; + case QLINK_CHAN_WIDTH_80: + rate_dst->bw = RATE_INFO_BW_80; + break; + case QLINK_CHAN_WIDTH_160: + rate_dst->bw = RATE_INFO_BW_160; + break; + default: + rate_dst->bw = 0; + break; + } + + if (rate_src->flags & QLINK_STA_INFO_RATE_FLAG_HT_MCS) + rate_dst->flags |= RATE_INFO_FLAGS_MCS; + else if (rate_src->flags & QLINK_STA_INFO_RATE_FLAG_VHT_MCS) + rate_dst->flags |= RATE_INFO_FLAGS_VHT_MCS; + else if (rate_src->flags & QLINK_STA_INFO_RATE_FLAG_HE_MCS) + rate_dst->flags |= RATE_INFO_FLAGS_HE_MCS; + + if (rate_src->flags & QLINK_STA_INFO_RATE_FLAG_SHORT_GI) + rate_dst->flags |= RATE_INFO_FLAGS_SHORT_GI; +} + +static void +qtnf_sta_info_parse_flags(struct nl80211_sta_flag_update *dst, + const struct qlink_sta_info_state *src) +{ + u32 mask, value; + + dst->mask = 0; + dst->set = 0; + + mask = le32_to_cpu(src->mask); + value = le32_to_cpu(src->value); + + if (mask & QLINK_STA_FLAG_AUTHORIZED) { + dst->mask |= BIT(NL80211_STA_FLAG_AUTHORIZED); + if (value & QLINK_STA_FLAG_AUTHORIZED) + dst->set |= BIT(NL80211_STA_FLAG_AUTHORIZED); + } + + if (mask & QLINK_STA_FLAG_SHORT_PREAMBLE) { + dst->mask |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); + if (value & QLINK_STA_FLAG_SHORT_PREAMBLE) + dst->set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); + } + + if (mask & QLINK_STA_FLAG_WME) { + dst->mask |= BIT(NL80211_STA_FLAG_WME); + if (value & QLINK_STA_FLAG_WME) + dst->set |= BIT(NL80211_STA_FLAG_WME); + } + + if (mask & QLINK_STA_FLAG_MFP) { + dst->mask |= BIT(NL80211_STA_FLAG_MFP); + if (value & QLINK_STA_FLAG_MFP) + dst->set |= BIT(NL80211_STA_FLAG_MFP); + } + + if (mask & QLINK_STA_FLAG_AUTHENTICATED) { + dst->mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED); + if (value & QLINK_STA_FLAG_AUTHENTICATED) + dst->set |= BIT(NL80211_STA_FLAG_AUTHENTICATED); + } + + if (mask & QLINK_STA_FLAG_TDLS_PEER) { + dst->mask |= BIT(NL80211_STA_FLAG_TDLS_PEER); + if (value & QLINK_STA_FLAG_TDLS_PEER) + dst->set |= BIT(NL80211_STA_FLAG_TDLS_PEER); + } + + if (mask & QLINK_STA_FLAG_ASSOCIATED) { + dst->mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); + if (value & QLINK_STA_FLAG_ASSOCIATED) + dst->set |= BIT(NL80211_STA_FLAG_ASSOCIATED); + } +} + +static void +qtnf_cmd_sta_info_parse(struct station_info *sinfo, const u8 *data, + size_t resp_size) +{ + const struct qlink_tlv_hdr *tlv; + const struct qlink_sta_stats *stats = NULL; + const u8 *map = NULL; + unsigned int map_len = 0; + unsigned int stats_len = 0; + u16 tlv_len; + +#define qtnf_sta_stat_avail(stat_name, bitn) \ + (qtnf_utils_is_bit_set(map, bitn, map_len) && \ + (offsetofend(struct qlink_sta_stats, stat_name) <= stats_len)) + + qlink_for_each_tlv(tlv, data, resp_size) { + tlv_len = le16_to_cpu(tlv->len); + + switch (le16_to_cpu(tlv->type)) { + case QTN_TLV_ID_BITMAP: + map_len = tlv_len; + map = tlv->val; + break; + case QTN_TLV_ID_STA_STATS: + stats_len = tlv_len; + stats = (const struct qlink_sta_stats *)tlv->val; + break; + default: + break; + } + } + + if (!qlink_tlv_parsing_ok(tlv, data, resp_size)) { + pr_err("Malformed TLV buffer\n"); + return; + } + + if (!map || !stats) + return; + + if (qtnf_sta_stat_avail(inactive_time, QLINK_STA_INFO_INACTIVE_TIME)) { + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_INACTIVE_TIME); + sinfo->inactive_time = le32_to_cpu(stats->inactive_time); + } + + if (qtnf_sta_stat_avail(connected_time, + QLINK_STA_INFO_CONNECTED_TIME)) { + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_CONNECTED_TIME); + sinfo->connected_time = le32_to_cpu(stats->connected_time); + } + + if (qtnf_sta_stat_avail(signal, QLINK_STA_INFO_SIGNAL)) { + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL); + sinfo->signal = stats->signal - QLINK_RSSI_OFFSET; + } + + if (qtnf_sta_stat_avail(signal_avg, QLINK_STA_INFO_SIGNAL_AVG)) { + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); + sinfo->signal_avg = stats->signal_avg - QLINK_RSSI_OFFSET; + } + + if (qtnf_sta_stat_avail(rxrate, QLINK_STA_INFO_RX_BITRATE)) { + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_BITRATE); + qtnf_sta_info_parse_rate(&sinfo->rxrate, &stats->rxrate); + } + + if (qtnf_sta_stat_avail(txrate, QLINK_STA_INFO_TX_BITRATE)) { + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); + qtnf_sta_info_parse_rate(&sinfo->txrate, &stats->txrate); + } + + if (qtnf_sta_stat_avail(sta_flags, QLINK_STA_INFO_STA_FLAGS)) { + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_STA_FLAGS); + qtnf_sta_info_parse_flags(&sinfo->sta_flags, &stats->sta_flags); + } + + if (qtnf_sta_stat_avail(rx_bytes, QLINK_STA_INFO_RX_BYTES)) { + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_BYTES); + sinfo->rx_bytes = le64_to_cpu(stats->rx_bytes); + } + + if (qtnf_sta_stat_avail(tx_bytes, QLINK_STA_INFO_TX_BYTES)) { + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BYTES); + sinfo->tx_bytes = le64_to_cpu(stats->tx_bytes); + } + + if (qtnf_sta_stat_avail(rx_bytes, QLINK_STA_INFO_RX_BYTES64)) { + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_BYTES64); + sinfo->rx_bytes = le64_to_cpu(stats->rx_bytes); + } + + if (qtnf_sta_stat_avail(tx_bytes, QLINK_STA_INFO_TX_BYTES64)) { + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BYTES64); + sinfo->tx_bytes = le64_to_cpu(stats->tx_bytes); + } + + if (qtnf_sta_stat_avail(rx_packets, QLINK_STA_INFO_RX_PACKETS)) { + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_PACKETS); + sinfo->rx_packets = le32_to_cpu(stats->rx_packets); + } + + if (qtnf_sta_stat_avail(tx_packets, QLINK_STA_INFO_TX_PACKETS)) { + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_PACKETS); + sinfo->tx_packets = le32_to_cpu(stats->tx_packets); + } + + if (qtnf_sta_stat_avail(rx_beacon, QLINK_STA_INFO_BEACON_RX)) { + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); + sinfo->rx_beacon = le64_to_cpu(stats->rx_beacon); + } + + if (qtnf_sta_stat_avail(rx_dropped_misc, QLINK_STA_INFO_RX_DROP_MISC)) { + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_DROP_MISC); + sinfo->rx_dropped_misc = le32_to_cpu(stats->rx_dropped_misc); + } + + if (qtnf_sta_stat_avail(tx_failed, QLINK_STA_INFO_TX_FAILED)) { + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_FAILED); + sinfo->tx_failed = le32_to_cpu(stats->tx_failed); + } + +#undef qtnf_sta_stat_avail +} + +int qtnf_cmd_get_sta_info(struct qtnf_vif *vif, const u8 *sta_mac, + struct station_info *sinfo) +{ + struct sk_buff *cmd_skb, *resp_skb = NULL; + struct qlink_cmd_get_sta_info *cmd; + const struct qlink_resp_get_sta_info *resp; + size_t var_resp_len = 0; + int ret = 0; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_GET_STA_INFO, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + qtnf_bus_lock(vif->mac->bus); + + cmd = (struct qlink_cmd_get_sta_info *)cmd_skb->data; + ether_addr_copy(cmd->sta_addr, sta_mac); + + ret = qtnf_cmd_send_with_reply(vif->mac->bus, cmd_skb, &resp_skb, + sizeof(*resp), &var_resp_len); + if (ret) + goto out; + + resp = (const struct qlink_resp_get_sta_info *)resp_skb->data; + + if (!ether_addr_equal(sta_mac, resp->sta_addr)) { + pr_err("VIF%u.%u: wrong mac in reply: %pM != %pM\n", + vif->mac->macid, vif->vifid, resp->sta_addr, sta_mac); + ret = -EINVAL; + goto out; + } + + qtnf_cmd_sta_info_parse(sinfo, resp->info, var_resp_len); + +out: + qtnf_bus_unlock(vif->mac->bus); + consume_skb(resp_skb); + + return ret; +} + +static int qtnf_cmd_send_add_change_intf(struct qtnf_vif *vif, + enum nl80211_iftype iftype, + int use4addr, + u8 *mac_addr, + enum qlink_cmd_type cmd_type) +{ + struct sk_buff *cmd_skb, *resp_skb = NULL; + struct qlink_cmd_manage_intf *cmd; + const struct qlink_resp_manage_intf *resp; + int ret = 0; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + cmd_type, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + qtnf_bus_lock(vif->mac->bus); + + cmd = (struct qlink_cmd_manage_intf *)cmd_skb->data; + cmd->intf_info.use4addr = use4addr; + + switch (iftype) { + case NL80211_IFTYPE_AP: + cmd->intf_info.if_type = cpu_to_le16(QLINK_IFTYPE_AP); + break; + case NL80211_IFTYPE_STATION: + cmd->intf_info.if_type = cpu_to_le16(QLINK_IFTYPE_STATION); + break; + default: + pr_err("VIF%u.%u: unsupported type %d\n", vif->mac->macid, + vif->vifid, iftype); + ret = -EINVAL; + goto out; + } + + if (mac_addr) + ether_addr_copy(cmd->intf_info.mac_addr, mac_addr); + else + eth_zero_addr(cmd->intf_info.mac_addr); + + ret = qtnf_cmd_send_with_reply(vif->mac->bus, cmd_skb, &resp_skb, + sizeof(*resp), NULL); + if (ret) + goto out; + + resp = (const struct qlink_resp_manage_intf *)resp_skb->data; + ether_addr_copy(vif->mac_addr, resp->intf_info.mac_addr); + +out: + qtnf_bus_unlock(vif->mac->bus); + consume_skb(resp_skb); + + return ret; +} + +int qtnf_cmd_send_add_intf(struct qtnf_vif *vif, enum nl80211_iftype iftype, + int use4addr, u8 *mac_addr) +{ + return qtnf_cmd_send_add_change_intf(vif, iftype, use4addr, mac_addr, + QLINK_CMD_ADD_INTF); +} + +int qtnf_cmd_send_change_intf_type(struct qtnf_vif *vif, + enum nl80211_iftype iftype, + int use4addr, + u8 *mac_addr) +{ + int ret; + + ret = qtnf_cmd_send_add_change_intf(vif, iftype, use4addr, mac_addr, + QLINK_CMD_CHANGE_INTF); + + /* Regulatory settings may be different for different interface types */ + if (ret == 0 && vif->wdev.iftype != iftype) { + enum nl80211_band band; + struct wiphy *wiphy = priv_to_wiphy(vif->mac); + + for (band = 0; band < NUM_NL80211_BANDS; ++band) { + if (!wiphy->bands[band]) + continue; + + qtnf_cmd_band_info_get(vif->mac, wiphy->bands[band]); + } + } + + return ret; +} + +int qtnf_cmd_send_del_intf(struct qtnf_vif *vif) +{ + struct sk_buff *cmd_skb; + struct qlink_cmd_manage_intf *cmd; + int ret = 0; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_DEL_INTF, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + qtnf_bus_lock(vif->mac->bus); + + cmd = (struct qlink_cmd_manage_intf *)cmd_skb->data; + + switch (vif->wdev.iftype) { + case NL80211_IFTYPE_AP: + cmd->intf_info.if_type = cpu_to_le16(QLINK_IFTYPE_AP); + break; + case NL80211_IFTYPE_STATION: + cmd->intf_info.if_type = cpu_to_le16(QLINK_IFTYPE_STATION); + break; + default: + pr_warn("VIF%u.%u: unsupported iftype %d\n", vif->mac->macid, + vif->vifid, vif->wdev.iftype); + dev_kfree_skb(cmd_skb); + ret = -EINVAL; + goto out; + } + + eth_zero_addr(cmd->intf_info.mac_addr); + + ret = qtnf_cmd_send(vif->mac->bus, cmd_skb); + if (ret) + goto out; + +out: + qtnf_bus_unlock(vif->mac->bus); + return ret; +} + +static int +qtnf_cmd_resp_proc_hw_info(struct qtnf_bus *bus, + const struct qlink_resp_get_hw_info *resp, + size_t info_len) +{ + struct qtnf_hw_info *hwinfo = &bus->hw_info; + const struct qlink_tlv_hdr *tlv; + const char *bld_name = NULL; + const char *bld_rev = NULL; + const char *bld_type = NULL; + const char *bld_label = NULL; + u32 bld_tmstamp = 0; + u32 plat_id = 0; + const char *hw_id = NULL; + const char *calibration_ver = NULL; + const char *uboot_ver = NULL; + u32 hw_ver = 0; + u16 tlv_type; + u16 tlv_len; + + hwinfo->num_mac = resp->num_mac; + hwinfo->mac_bitmap = resp->mac_bitmap; + hwinfo->fw_ver = le32_to_cpu(resp->fw_ver); + hwinfo->total_tx_chain = resp->total_tx_chain; + hwinfo->total_rx_chain = resp->total_rx_chain; + + bld_tmstamp = le32_to_cpu(resp->bld_tmstamp); + plat_id = le32_to_cpu(resp->plat_id); + hw_ver = le32_to_cpu(resp->hw_ver); + + qlink_for_each_tlv(tlv, resp->info, info_len) { + tlv_type = le16_to_cpu(tlv->type); + tlv_len = le16_to_cpu(tlv->len); + + switch (tlv_type) { + case QTN_TLV_ID_BUILD_NAME: + bld_name = (const void *)tlv->val; + break; + case QTN_TLV_ID_BUILD_REV: + bld_rev = (const void *)tlv->val; + break; + case QTN_TLV_ID_BUILD_TYPE: + bld_type = (const void *)tlv->val; + break; + case QTN_TLV_ID_BUILD_LABEL: + bld_label = (const void *)tlv->val; + break; + case QTN_TLV_ID_HW_ID: + hw_id = (const void *)tlv->val; + break; + case QTN_TLV_ID_CALIBRATION_VER: + calibration_ver = (const void *)tlv->val; + break; + case QTN_TLV_ID_UBOOT_VER: + uboot_ver = (const void *)tlv->val; + break; + case QTN_TLV_ID_BITMAP: + memcpy(hwinfo->hw_capab, tlv->val, + min(sizeof(hwinfo->hw_capab), (size_t)tlv_len)); + break; + default: + break; + } + } + + if (!qlink_tlv_parsing_ok(tlv, resp->info, info_len)) { + pr_err("Malformed TLV buffer\n"); + return -EINVAL; + } + + pr_info("\nBuild name: %s\n" + "Build revision: %s\n" + "Build type: %s\n" + "Build label: %s\n" + "Build timestamp: %lu\n" + "Platform ID: %lu\n" + "Hardware ID: %s\n" + "Calibration version: %s\n" + "U-Boot version: %s\n" + "Hardware version: 0x%08x\n" + "Qlink ver: %u.%u\n" + "MACs map: %#x\n" + "Chains Rx-Tx: %ux%u\n" + "FW version: 0x%x\n", + bld_name, bld_rev, bld_type, bld_label, + (unsigned long)bld_tmstamp, + (unsigned long)plat_id, + hw_id, calibration_ver, uboot_ver, hw_ver, + QLINK_VER_MAJOR(bus->hw_info.ql_proto_ver), + QLINK_VER_MINOR(bus->hw_info.ql_proto_ver), + hwinfo->mac_bitmap, + hwinfo->total_rx_chain, hwinfo->total_tx_chain, + hwinfo->fw_ver); + + strscpy(hwinfo->fw_version, bld_label, sizeof(hwinfo->fw_version)); + hwinfo->hw_version = hw_ver; + + return 0; +} + +static void +qtnf_parse_wowlan_info(struct qtnf_wmac *mac, + const struct qlink_wowlan_capab_data *wowlan) +{ + struct qtnf_mac_info *mac_info = &mac->macinfo; + const struct qlink_wowlan_support *data1; + struct wiphy_wowlan_support *supp; + + supp = kzalloc(sizeof(*supp), GFP_KERNEL); + if (!supp) + return; + + switch (le16_to_cpu(wowlan->version)) { + case 0x1: + data1 = (struct qlink_wowlan_support *)wowlan->data; + + supp->flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT; + supp->n_patterns = le32_to_cpu(data1->n_patterns); + supp->pattern_max_len = le32_to_cpu(data1->pattern_max_len); + supp->pattern_min_len = le32_to_cpu(data1->pattern_min_len); + + mac_info->wowlan = supp; + break; + default: + pr_warn("MAC%u: unsupported WoWLAN version 0x%x\n", + mac->macid, le16_to_cpu(wowlan->version)); + kfree(supp); + break; + } +} + +static int +qtnf_parse_variable_mac_info(struct qtnf_wmac *mac, + const struct qlink_resp_get_mac_info *resp, + size_t tlv_buf_size) +{ + struct ieee80211_iface_combination *comb = mac->macinfo.if_comb; + size_t n_comb = 0; + struct ieee80211_iface_limit *limits; + const struct qlink_iface_limit_record *rec; + const struct qlink_iface_limit *lim; + const struct qlink_wowlan_capab_data *wowlan; + u16 rec_len; + u16 tlv_type; + u16 tlv_value_len; + const struct qlink_tlv_hdr *tlv; + u8 *ext_capa = NULL; + u8 *ext_capa_mask = NULL; + u8 ext_capa_len = 0; + u8 ext_capa_mask_len = 0; + int i = 0; + struct ieee80211_reg_rule *rule; + unsigned int rule_idx = 0; + const struct qlink_tlv_reg_rule *tlv_rule; + + if (WARN_ON(resp->n_reg_rules > NL80211_MAX_SUPP_REG_RULES)) + return -E2BIG; + + mac->rd = kzalloc(struct_size(mac->rd, reg_rules, resp->n_reg_rules), + GFP_KERNEL); + if (!mac->rd) + return -ENOMEM; + + mac->rd->n_reg_rules = resp->n_reg_rules; + mac->rd->alpha2[0] = resp->alpha2[0]; + mac->rd->alpha2[1] = resp->alpha2[1]; + + switch (resp->dfs_region) { + case QLINK_DFS_FCC: + mac->rd->dfs_region = NL80211_DFS_FCC; + break; + case QLINK_DFS_ETSI: + mac->rd->dfs_region = NL80211_DFS_ETSI; + break; + case QLINK_DFS_JP: + mac->rd->dfs_region = NL80211_DFS_JP; + break; + case QLINK_DFS_UNSET: + default: + mac->rd->dfs_region = NL80211_DFS_UNSET; + break; + } + + qlink_for_each_tlv(tlv, resp->var_info, tlv_buf_size) { + tlv_type = le16_to_cpu(tlv->type); + tlv_value_len = le16_to_cpu(tlv->len); + + switch (tlv_type) { + case QTN_TLV_ID_IFACE_LIMIT: + if (unlikely(!comb)) { + pr_warn("MAC%u: no combinations advertised\n", + mac->macid); + return -EINVAL; + } + + if (n_comb >= mac->macinfo.n_if_comb) { + pr_warn("MAC%u: combinations count exceeded\n", + mac->macid); + n_comb++; + break; + } + + rec = (void *)tlv->val; + rec_len = sizeof(*rec) + rec->n_limits * sizeof(*lim); + + if (unlikely(tlv_value_len != rec_len)) { + pr_warn("MAC%u: record %zu size mismatch\n", + mac->macid, n_comb); + return -EINVAL; + } + + limits = kcalloc(rec->n_limits, sizeof(*limits), + GFP_KERNEL); + if (!limits) + return -ENOMEM; + + comb[n_comb].num_different_channels = + rec->num_different_channels; + comb[n_comb].max_interfaces = + le16_to_cpu(rec->max_interfaces); + comb[n_comb].n_limits = rec->n_limits; + comb[n_comb].limits = limits; + + for (i = 0; i < rec->n_limits; i++) { + lim = &rec->limits[i]; + limits[i].max = le16_to_cpu(lim->max_num); + limits[i].types = + qlink_iface_type_to_nl_mask(le16_to_cpu(lim->type)); + pr_debug("MAC%u: comb[%zu]: MAX:%u TYPES:%.4X\n", + mac->macid, n_comb, + limits[i].max, limits[i].types); + } + + n_comb++; + break; + case WLAN_EID_EXT_CAPABILITY: + if (unlikely(tlv_value_len > U8_MAX)) + return -EINVAL; + ext_capa = (u8 *)tlv->val; + ext_capa_len = tlv_value_len; + break; + case QTN_TLV_ID_EXT_CAPABILITY_MASK: + if (unlikely(tlv_value_len > U8_MAX)) + return -EINVAL; + ext_capa_mask = (u8 *)tlv->val; + ext_capa_mask_len = tlv_value_len; + break; + case QTN_TLV_ID_WOWLAN_CAPAB: + if (tlv_value_len < sizeof(*wowlan)) + return -EINVAL; + + wowlan = (void *)tlv->val; + if (!le16_to_cpu(wowlan->len)) { + pr_warn("MAC%u: skip empty WoWLAN data\n", + mac->macid); + break; + } + + rec_len = sizeof(*wowlan) + le16_to_cpu(wowlan->len); + if (unlikely(tlv_value_len != rec_len)) { + pr_warn("MAC%u: WoWLAN data size mismatch\n", + mac->macid); + return -EINVAL; + } + + kfree(mac->macinfo.wowlan); + mac->macinfo.wowlan = NULL; + qtnf_parse_wowlan_info(mac, wowlan); + break; + case QTN_TLV_ID_REG_RULE: + if (rule_idx >= resp->n_reg_rules) { + pr_warn("unexpected number of rules: %u\n", + resp->n_reg_rules); + return -EINVAL; + } + + if (tlv_value_len != sizeof(*tlv_rule) - sizeof(*tlv)) { + pr_warn("malformed TLV 0x%.2X; LEN: %u\n", + tlv_type, tlv_value_len); + return -EINVAL; + } + + tlv_rule = (const struct qlink_tlv_reg_rule *)tlv; + rule = &mac->rd->reg_rules[rule_idx++]; + qlink_utils_regrule_q2nl(rule, tlv_rule); + break; + default: + pr_warn("MAC%u: unknown TLV type %u\n", + mac->macid, tlv_type); + break; + } + } + + if (!qlink_tlv_parsing_ok(tlv, resp->var_info, tlv_buf_size)) { + pr_err("Malformed TLV buffer\n"); + return -EINVAL; + } + + if (mac->macinfo.n_if_comb != n_comb) { + pr_err("MAC%u: combination mismatch: reported=%zu parsed=%zu\n", + mac->macid, mac->macinfo.n_if_comb, n_comb); + return -EINVAL; + } + + if (ext_capa_len != ext_capa_mask_len) { + pr_err("MAC%u: ext_capa/_mask lengths mismatch: %u != %u\n", + mac->macid, ext_capa_len, ext_capa_mask_len); + return -EINVAL; + } + + if (rule_idx != resp->n_reg_rules) { + pr_warn("unexpected number of rules: expected %u got %u\n", + resp->n_reg_rules, rule_idx); + return -EINVAL; + } + + if (ext_capa_len > 0) { + ext_capa = kmemdup(ext_capa, ext_capa_len, GFP_KERNEL); + if (!ext_capa) + return -ENOMEM; + + ext_capa_mask = + kmemdup(ext_capa_mask, ext_capa_mask_len, GFP_KERNEL); + if (!ext_capa_mask) { + kfree(ext_capa); + return -ENOMEM; + } + } else { + ext_capa = NULL; + ext_capa_mask = NULL; + } + + qtnf_mac_ext_caps_free(mac); + mac->macinfo.extended_capabilities = ext_capa; + mac->macinfo.extended_capabilities_mask = ext_capa_mask; + mac->macinfo.extended_capabilities_len = ext_capa_len; + + return 0; +} + +static int +qtnf_cmd_resp_proc_mac_info(struct qtnf_wmac *mac, + const struct qlink_resp_get_mac_info *resp_info) +{ + struct qtnf_mac_info *mac_info; + struct qtnf_vif *vif; + + qtnf_mac_iface_comb_free(mac); + + mac_info = &mac->macinfo; + + mac_info->bands_cap = resp_info->bands_cap; + ether_addr_copy(mac->macaddr, resp_info->dev_mac); + + vif = qtnf_mac_get_base_vif(mac); + if (vif) + ether_addr_copy(vif->mac_addr, mac->macaddr); + else + pr_err("could not get valid base vif\n"); + + mac_info->num_tx_chain = resp_info->num_tx_chain; + mac_info->num_rx_chain = resp_info->num_rx_chain; + + mac_info->max_ap_assoc_sta = le16_to_cpu(resp_info->max_ap_assoc_sta); + mac_info->radar_detect_widths = + qlink_chan_width_mask_to_nl(le16_to_cpu( + resp_info->radar_detect_widths)); + mac_info->max_acl_mac_addrs = le16_to_cpu(resp_info->max_acl_mac_addrs); + mac_info->frag_thr = le32_to_cpu(resp_info->frag_threshold); + mac_info->rts_thr = le32_to_cpu(resp_info->rts_threshold); + mac_info->sretry_limit = resp_info->retry_short; + mac_info->lretry_limit = resp_info->retry_long; + mac_info->coverage_class = resp_info->coverage_class; + mac_info->max_scan_ssids = resp_info->max_scan_ssids; + + memcpy(&mac_info->ht_cap_mod_mask, &resp_info->ht_cap_mod_mask, + sizeof(mac_info->ht_cap_mod_mask)); + memcpy(&mac_info->vht_cap_mod_mask, &resp_info->vht_cap_mod_mask, + sizeof(mac_info->vht_cap_mod_mask)); + + mac_info->n_if_comb = resp_info->n_iface_combinations; + mac_info->if_comb = kcalloc(mac->macinfo.n_if_comb, + sizeof(*mac->macinfo.if_comb), + GFP_KERNEL); + + if (!mac->macinfo.if_comb) + return -ENOMEM; + + return 0; +} + +static void qtnf_cmd_resp_band_fill_htcap(const u8 *info, + struct ieee80211_sta_ht_cap *bcap) +{ + const struct ieee80211_ht_cap *ht_cap = + (const struct ieee80211_ht_cap *)info; + + bcap->ht_supported = true; + bcap->cap = le16_to_cpu(ht_cap->cap_info); + bcap->ampdu_factor = + ht_cap->ampdu_params_info & IEEE80211_HT_AMPDU_PARM_FACTOR; + bcap->ampdu_density = + (ht_cap->ampdu_params_info & IEEE80211_HT_AMPDU_PARM_DENSITY) >> + IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT; + memcpy(&bcap->mcs, &ht_cap->mcs, sizeof(bcap->mcs)); +} + +static void qtnf_cmd_resp_band_fill_vhtcap(const u8 *info, + struct ieee80211_sta_vht_cap *bcap) +{ + const struct ieee80211_vht_cap *vht_cap = + (const struct ieee80211_vht_cap *)info; + + bcap->vht_supported = true; + bcap->cap = le32_to_cpu(vht_cap->vht_cap_info); + memcpy(&bcap->vht_mcs, &vht_cap->supp_mcs, sizeof(bcap->vht_mcs)); +} + +static void qtnf_cmd_conv_iftype(struct ieee80211_sband_iftype_data + *iftype_data, + const struct qlink_sband_iftype_data + *qlink_data) +{ + iftype_data->types_mask = le16_to_cpu(qlink_data->types_mask); + + iftype_data->he_cap.has_he = true; + memcpy(&iftype_data->he_cap.he_cap_elem, &qlink_data->he_cap_elem, + sizeof(qlink_data->he_cap_elem)); + memcpy(iftype_data->he_cap.ppe_thres, qlink_data->ppe_thres, + ARRAY_SIZE(qlink_data->ppe_thres)); + + iftype_data->he_cap.he_mcs_nss_supp.rx_mcs_80 = + qlink_data->he_mcs_nss_supp.rx_mcs_80; + iftype_data->he_cap.he_mcs_nss_supp.tx_mcs_80 = + qlink_data->he_mcs_nss_supp.tx_mcs_80; + iftype_data->he_cap.he_mcs_nss_supp.rx_mcs_160 = + qlink_data->he_mcs_nss_supp.rx_mcs_160; + iftype_data->he_cap.he_mcs_nss_supp.tx_mcs_160 = + qlink_data->he_mcs_nss_supp.tx_mcs_160; + iftype_data->he_cap.he_mcs_nss_supp.rx_mcs_80p80 = + qlink_data->he_mcs_nss_supp.rx_mcs_80p80; + iftype_data->he_cap.he_mcs_nss_supp.tx_mcs_80p80 = + qlink_data->he_mcs_nss_supp.tx_mcs_80p80; +} + +static int qtnf_cmd_band_fill_iftype(const u8 *data, + struct ieee80211_supported_band *band) +{ + unsigned int i; + struct ieee80211_sband_iftype_data *iftype_data; + const struct qlink_tlv_iftype_data *tlv = + (const struct qlink_tlv_iftype_data *)data; + size_t payload_len = tlv->n_iftype_data * sizeof(*tlv->iftype_data) + + sizeof(*tlv) - + sizeof(struct qlink_tlv_hdr); + + if (tlv->hdr.len != cpu_to_le16(payload_len)) { + pr_err("bad IFTYPE_DATA TLV len %u\n", tlv->hdr.len); + return -EINVAL; + } + + kfree(band->iftype_data); + band->iftype_data = NULL; + band->n_iftype_data = tlv->n_iftype_data; + if (band->n_iftype_data == 0) + return 0; + + iftype_data = kcalloc(band->n_iftype_data, sizeof(*iftype_data), + GFP_KERNEL); + if (!iftype_data) { + band->n_iftype_data = 0; + return -ENOMEM; + } + band->iftype_data = iftype_data; + + for (i = 0; i < band->n_iftype_data; i++) + qtnf_cmd_conv_iftype(iftype_data++, &tlv->iftype_data[i]); + + return 0; +} + +static int +qtnf_cmd_resp_fill_band_info(struct ieee80211_supported_band *band, + struct qlink_resp_band_info_get *resp, + size_t payload_len) +{ + u16 tlv_type; + size_t tlv_dlen; + const struct qlink_tlv_hdr *tlv; + const struct qlink_channel *qchan; + struct ieee80211_channel *chan; + unsigned int chidx = 0; + u32 qflags; + int ret = -EINVAL; + + memset(&band->ht_cap, 0, sizeof(band->ht_cap)); + memset(&band->vht_cap, 0, sizeof(band->vht_cap)); + + if (band->channels) { + if (band->n_channels == resp->num_chans) { + memset(band->channels, 0, + sizeof(*band->channels) * band->n_channels); + } else { + kfree(band->channels); + band->n_channels = 0; + band->channels = NULL; + } + } + + band->n_channels = resp->num_chans; + if (band->n_channels == 0) + return 0; + + if (!band->channels) + band->channels = kcalloc(band->n_channels, sizeof(*chan), + GFP_KERNEL); + if (!band->channels) { + band->n_channels = 0; + return -ENOMEM; + } + + qlink_for_each_tlv(tlv, resp->info, payload_len) { + tlv_type = le16_to_cpu(tlv->type); + tlv_dlen = le16_to_cpu(tlv->len); + + switch (tlv_type) { + case QTN_TLV_ID_CHANNEL: + if (unlikely(tlv_dlen != sizeof(*qchan))) { + pr_err("invalid channel TLV len %zu\n", + tlv_dlen); + goto error_ret; + } + + if (chidx == band->n_channels) { + pr_err("too many channel TLVs\n"); + goto error_ret; + } + + qchan = (const struct qlink_channel *)tlv->val; + chan = &band->channels[chidx++]; + qflags = le32_to_cpu(qchan->flags); + + chan->hw_value = le16_to_cpu(qchan->hw_value); + chan->band = band->band; + chan->center_freq = le16_to_cpu(qchan->center_freq); + chan->max_antenna_gain = (int)qchan->max_antenna_gain; + chan->max_power = (int)qchan->max_power; + chan->max_reg_power = (int)qchan->max_reg_power; + chan->beacon_found = qchan->beacon_found; + chan->dfs_cac_ms = le32_to_cpu(qchan->dfs_cac_ms); + chan->flags = 0; + + if (qflags & QLINK_CHAN_DISABLED) + chan->flags |= IEEE80211_CHAN_DISABLED; + + if (qflags & QLINK_CHAN_NO_IR) + chan->flags |= IEEE80211_CHAN_NO_IR; + + if (qflags & QLINK_CHAN_NO_HT40PLUS) + chan->flags |= IEEE80211_CHAN_NO_HT40PLUS; + + if (qflags & QLINK_CHAN_NO_HT40MINUS) + chan->flags |= IEEE80211_CHAN_NO_HT40MINUS; + + if (qflags & QLINK_CHAN_NO_OFDM) + chan->flags |= IEEE80211_CHAN_NO_OFDM; + + if (qflags & QLINK_CHAN_NO_80MHZ) + chan->flags |= IEEE80211_CHAN_NO_80MHZ; + + if (qflags & QLINK_CHAN_NO_160MHZ) + chan->flags |= IEEE80211_CHAN_NO_160MHZ; + + if (qflags & QLINK_CHAN_INDOOR_ONLY) + chan->flags |= IEEE80211_CHAN_INDOOR_ONLY; + + if (qflags & QLINK_CHAN_IR_CONCURRENT) + chan->flags |= IEEE80211_CHAN_IR_CONCURRENT; + + if (qflags & QLINK_CHAN_NO_20MHZ) + chan->flags |= IEEE80211_CHAN_NO_20MHZ; + + if (qflags & QLINK_CHAN_NO_10MHZ) + chan->flags |= IEEE80211_CHAN_NO_10MHZ; + + if (qflags & QLINK_CHAN_RADAR) { + chan->flags |= IEEE80211_CHAN_RADAR; + chan->dfs_state_entered = jiffies; + + if (qchan->dfs_state == QLINK_DFS_USABLE) + chan->dfs_state = NL80211_DFS_USABLE; + else if (qchan->dfs_state == + QLINK_DFS_AVAILABLE) + chan->dfs_state = NL80211_DFS_AVAILABLE; + else + chan->dfs_state = + NL80211_DFS_UNAVAILABLE; + } + + pr_debug("chan=%d flags=%#x max_pow=%d max_reg_pow=%d\n", + chan->hw_value, chan->flags, chan->max_power, + chan->max_reg_power); + break; + case WLAN_EID_HT_CAPABILITY: + if (unlikely(tlv_dlen != + sizeof(struct ieee80211_ht_cap))) { + pr_err("bad HTCAP TLV len %zu\n", tlv_dlen); + goto error_ret; + } + + qtnf_cmd_resp_band_fill_htcap(tlv->val, &band->ht_cap); + break; + case WLAN_EID_VHT_CAPABILITY: + if (unlikely(tlv_dlen != + sizeof(struct ieee80211_vht_cap))) { + pr_err("bad VHTCAP TLV len %zu\n", tlv_dlen); + goto error_ret; + } + + qtnf_cmd_resp_band_fill_vhtcap(tlv->val, + &band->vht_cap); + break; + case QTN_TLV_ID_IFTYPE_DATA: + ret = qtnf_cmd_band_fill_iftype((const uint8_t *)tlv, + band); + if (ret) + goto error_ret; + break; + default: + pr_warn("unknown TLV type: %#x\n", tlv_type); + break; + } + } + + if (!qlink_tlv_parsing_ok(tlv, resp->info, payload_len)) { + pr_err("Malformed TLV buffer\n"); + goto error_ret; + } + + if (band->n_channels != chidx) { + pr_err("channel count mismatch: reported=%d, parsed=%d\n", + band->n_channels, chidx); + goto error_ret; + } + + return 0; + +error_ret: + kfree(band->channels); + band->channels = NULL; + band->n_channels = 0; + + return ret; +} + +int qtnf_cmd_get_mac_info(struct qtnf_wmac *mac) +{ + struct sk_buff *cmd_skb, *resp_skb = NULL; + const struct qlink_resp_get_mac_info *resp; + size_t var_data_len = 0; + int ret = 0; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, QLINK_VIFID_RSVD, + QLINK_CMD_MAC_INFO, + sizeof(struct qlink_cmd)); + if (!cmd_skb) + return -ENOMEM; + + qtnf_bus_lock(mac->bus); + ret = qtnf_cmd_send_with_reply(mac->bus, cmd_skb, &resp_skb, + sizeof(*resp), &var_data_len); + if (ret) + goto out; + + resp = (const struct qlink_resp_get_mac_info *)resp_skb->data; + ret = qtnf_cmd_resp_proc_mac_info(mac, resp); + if (ret) + goto out; + + ret = qtnf_parse_variable_mac_info(mac, resp, var_data_len); + +out: + qtnf_bus_unlock(mac->bus); + consume_skb(resp_skb); + + return ret; +} + +int qtnf_cmd_get_hw_info(struct qtnf_bus *bus) +{ + struct sk_buff *cmd_skb, *resp_skb = NULL; + const struct qlink_resp_get_hw_info *resp; + size_t info_len = 0; + int ret = 0; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(QLINK_MACID_RSVD, QLINK_VIFID_RSVD, + QLINK_CMD_GET_HW_INFO, + sizeof(struct qlink_cmd)); + if (!cmd_skb) + return -ENOMEM; + + qtnf_bus_lock(bus); + ret = qtnf_cmd_send_with_reply(bus, cmd_skb, &resp_skb, + sizeof(*resp), &info_len); + if (ret) + goto out; + + resp = (const struct qlink_resp_get_hw_info *)resp_skb->data; + ret = qtnf_cmd_resp_proc_hw_info(bus, resp, info_len); + +out: + qtnf_bus_unlock(bus); + consume_skb(resp_skb); + + return ret; +} + +int qtnf_cmd_band_info_get(struct qtnf_wmac *mac, + struct ieee80211_supported_band *band) +{ + struct sk_buff *cmd_skb, *resp_skb = NULL; + struct qlink_cmd_band_info_get *cmd; + struct qlink_resp_band_info_get *resp; + size_t info_len = 0; + int ret = 0; + u8 qband = qlink_utils_band_cfg2q(band->band); + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, 0, + QLINK_CMD_BAND_INFO_GET, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + cmd = (struct qlink_cmd_band_info_get *)cmd_skb->data; + cmd->band = qband; + + qtnf_bus_lock(mac->bus); + ret = qtnf_cmd_send_with_reply(mac->bus, cmd_skb, &resp_skb, + sizeof(*resp), &info_len); + if (ret) + goto out; + + resp = (struct qlink_resp_band_info_get *)resp_skb->data; + if (resp->band != qband) { + pr_err("MAC%u: reply band %u != cmd band %u\n", mac->macid, + resp->band, qband); + ret = -EINVAL; + goto out; + } + + ret = qtnf_cmd_resp_fill_band_info(band, resp, info_len); + +out: + qtnf_bus_unlock(mac->bus); + consume_skb(resp_skb); + + return ret; +} + +int qtnf_cmd_send_update_phy_params(struct qtnf_wmac *mac, u32 changed) +{ + struct wiphy *wiphy = priv_to_wiphy(mac); + struct sk_buff *cmd_skb; + int ret = 0; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, 0, + QLINK_CMD_PHY_PARAMS_SET, + sizeof(struct qlink_cmd)); + if (!cmd_skb) + return -ENOMEM; + + qtnf_bus_lock(mac->bus); + + if (changed & WIPHY_PARAM_FRAG_THRESHOLD) + qtnf_cmd_skb_put_tlv_u32(cmd_skb, QTN_TLV_ID_FRAG_THRESH, + wiphy->frag_threshold); + if (changed & WIPHY_PARAM_RTS_THRESHOLD) + qtnf_cmd_skb_put_tlv_u32(cmd_skb, QTN_TLV_ID_RTS_THRESH, + wiphy->rts_threshold); + if (changed & WIPHY_PARAM_COVERAGE_CLASS) + qtnf_cmd_skb_put_tlv_u32(cmd_skb, QTN_TLV_ID_COVERAGE_CLASS, + wiphy->coverage_class); + + if (changed & WIPHY_PARAM_RETRY_LONG) + qtnf_cmd_skb_put_tlv_u32(cmd_skb, QTN_TLV_ID_LRETRY_LIMIT, + wiphy->retry_long); + + if (changed & WIPHY_PARAM_RETRY_SHORT) + qtnf_cmd_skb_put_tlv_u32(cmd_skb, QTN_TLV_ID_SRETRY_LIMIT, + wiphy->retry_short); + + ret = qtnf_cmd_send(mac->bus, cmd_skb); + + qtnf_bus_unlock(mac->bus); + + return ret; +} + +int qtnf_cmd_send_init_fw(struct qtnf_bus *bus) +{ + struct sk_buff *resp_skb = NULL; + struct qlink_resp_init_fw *resp; + struct qlink_cmd_init_fw *cmd; + struct sk_buff *cmd_skb; + size_t info_len = 0; + int ret; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(QLINK_MACID_RSVD, QLINK_VIFID_RSVD, + QLINK_CMD_FW_INIT, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + cmd = (struct qlink_cmd_init_fw *)cmd_skb->data; + cmd->qlink_proto_ver = cpu_to_le32(QLINK_PROTO_VER); + + qtnf_bus_lock(bus); + ret = qtnf_cmd_send_with_reply(bus, cmd_skb, &resp_skb, + sizeof(*resp), &info_len); + qtnf_bus_unlock(bus); + + if (ret) + goto out; + + resp = (struct qlink_resp_init_fw *)resp_skb->data; + bus->hw_info.ql_proto_ver = le32_to_cpu(resp->qlink_proto_ver); + +out: + consume_skb(resp_skb); + return ret; +} + +void qtnf_cmd_send_deinit_fw(struct qtnf_bus *bus) +{ + struct sk_buff *cmd_skb; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(QLINK_MACID_RSVD, QLINK_VIFID_RSVD, + QLINK_CMD_FW_DEINIT, + sizeof(struct qlink_cmd)); + if (!cmd_skb) + return; + + qtnf_bus_lock(bus); + qtnf_cmd_send(bus, cmd_skb); + qtnf_bus_unlock(bus); +} + +int qtnf_cmd_send_add_key(struct qtnf_vif *vif, u8 key_index, bool pairwise, + const u8 *mac_addr, struct key_params *params) +{ + struct sk_buff *cmd_skb; + struct qlink_cmd_add_key *cmd; + int ret = 0; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_ADD_KEY, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + qtnf_bus_lock(vif->mac->bus); + + cmd = (struct qlink_cmd_add_key *)cmd_skb->data; + + if (mac_addr) + ether_addr_copy(cmd->addr, mac_addr); + else + eth_broadcast_addr(cmd->addr); + + cmd->cipher = cpu_to_le32(params->cipher); + cmd->key_index = key_index; + cmd->pairwise = pairwise; + + if (params->key && params->key_len > 0) + qtnf_cmd_skb_put_tlv_arr(cmd_skb, QTN_TLV_ID_KEY, + params->key, + params->key_len); + + if (params->seq && params->seq_len > 0) + qtnf_cmd_skb_put_tlv_arr(cmd_skb, QTN_TLV_ID_SEQ, + params->seq, + params->seq_len); + + ret = qtnf_cmd_send(vif->mac->bus, cmd_skb); + + qtnf_bus_unlock(vif->mac->bus); + + return ret; +} + +int qtnf_cmd_send_del_key(struct qtnf_vif *vif, u8 key_index, bool pairwise, + const u8 *mac_addr) +{ + struct sk_buff *cmd_skb; + struct qlink_cmd_del_key *cmd; + int ret = 0; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_DEL_KEY, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + qtnf_bus_lock(vif->mac->bus); + + cmd = (struct qlink_cmd_del_key *)cmd_skb->data; + + if (mac_addr) + ether_addr_copy(cmd->addr, mac_addr); + else + eth_broadcast_addr(cmd->addr); + + cmd->key_index = key_index; + cmd->pairwise = pairwise; + + ret = qtnf_cmd_send(vif->mac->bus, cmd_skb); + + qtnf_bus_unlock(vif->mac->bus); + + return ret; +} + +int qtnf_cmd_send_set_default_key(struct qtnf_vif *vif, u8 key_index, + bool unicast, bool multicast) +{ + struct sk_buff *cmd_skb; + struct qlink_cmd_set_def_key *cmd; + int ret = 0; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_SET_DEFAULT_KEY, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + qtnf_bus_lock(vif->mac->bus); + + cmd = (struct qlink_cmd_set_def_key *)cmd_skb->data; + cmd->key_index = key_index; + cmd->unicast = unicast; + cmd->multicast = multicast; + + ret = qtnf_cmd_send(vif->mac->bus, cmd_skb); + + qtnf_bus_unlock(vif->mac->bus); + + return ret; +} + +int qtnf_cmd_send_set_default_mgmt_key(struct qtnf_vif *vif, u8 key_index) +{ + struct sk_buff *cmd_skb; + struct qlink_cmd_set_def_mgmt_key *cmd; + int ret = 0; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_SET_DEFAULT_MGMT_KEY, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + qtnf_bus_lock(vif->mac->bus); + + cmd = (struct qlink_cmd_set_def_mgmt_key *)cmd_skb->data; + cmd->key_index = key_index; + + ret = qtnf_cmd_send(vif->mac->bus, cmd_skb); + + qtnf_bus_unlock(vif->mac->bus); + + return ret; +} + +static u32 qtnf_encode_sta_flags(u32 flags) +{ + u32 code = 0; + + if (flags & BIT(NL80211_STA_FLAG_AUTHORIZED)) + code |= QLINK_STA_FLAG_AUTHORIZED; + if (flags & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) + code |= QLINK_STA_FLAG_SHORT_PREAMBLE; + if (flags & BIT(NL80211_STA_FLAG_WME)) + code |= QLINK_STA_FLAG_WME; + if (flags & BIT(NL80211_STA_FLAG_MFP)) + code |= QLINK_STA_FLAG_MFP; + if (flags & BIT(NL80211_STA_FLAG_AUTHENTICATED)) + code |= QLINK_STA_FLAG_AUTHENTICATED; + if (flags & BIT(NL80211_STA_FLAG_TDLS_PEER)) + code |= QLINK_STA_FLAG_TDLS_PEER; + if (flags & BIT(NL80211_STA_FLAG_ASSOCIATED)) + code |= QLINK_STA_FLAG_ASSOCIATED; + return code; +} + +int qtnf_cmd_send_change_sta(struct qtnf_vif *vif, const u8 *mac, + struct station_parameters *params) +{ + struct sk_buff *cmd_skb; + struct qlink_cmd_change_sta *cmd; + int ret = 0; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_CHANGE_STA, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + qtnf_bus_lock(vif->mac->bus); + + cmd = (struct qlink_cmd_change_sta *)cmd_skb->data; + ether_addr_copy(cmd->sta_addr, mac); + cmd->flag_update.mask = + cpu_to_le32(qtnf_encode_sta_flags(params->sta_flags_mask)); + cmd->flag_update.value = + cpu_to_le32(qtnf_encode_sta_flags(params->sta_flags_set)); + + switch (vif->wdev.iftype) { + case NL80211_IFTYPE_AP: + cmd->if_type = cpu_to_le16(QLINK_IFTYPE_AP); + break; + case NL80211_IFTYPE_STATION: + cmd->if_type = cpu_to_le16(QLINK_IFTYPE_STATION); + break; + default: + pr_err("unsupported iftype %d\n", vif->wdev.iftype); + dev_kfree_skb(cmd_skb); + ret = -EINVAL; + goto out; + } + + ret = qtnf_cmd_send(vif->mac->bus, cmd_skb); + +out: + qtnf_bus_unlock(vif->mac->bus); + + return ret; +} + +int qtnf_cmd_send_del_sta(struct qtnf_vif *vif, + struct station_del_parameters *params) +{ + struct sk_buff *cmd_skb; + struct qlink_cmd_del_sta *cmd; + int ret = 0; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_DEL_STA, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + qtnf_bus_lock(vif->mac->bus); + + cmd = (struct qlink_cmd_del_sta *)cmd_skb->data; + + if (params->mac) + ether_addr_copy(cmd->sta_addr, params->mac); + else + eth_broadcast_addr(cmd->sta_addr); /* flush all stations */ + + cmd->subtype = params->subtype; + cmd->reason_code = cpu_to_le16(params->reason_code); + + ret = qtnf_cmd_send(vif->mac->bus, cmd_skb); + + qtnf_bus_unlock(vif->mac->bus); + + return ret; +} + +static void qtnf_cmd_channel_tlv_add(struct sk_buff *cmd_skb, + const struct ieee80211_channel *sc) +{ + struct qlink_tlv_channel *tlv; + struct qlink_channel *qch; + + tlv = skb_put_zero(cmd_skb, sizeof(*tlv)); + qch = &tlv->chan; + tlv->hdr.type = cpu_to_le16(QTN_TLV_ID_CHANNEL); + tlv->hdr.len = cpu_to_le16(sizeof(*qch)); + + qch->center_freq = cpu_to_le16(sc->center_freq); + qch->hw_value = cpu_to_le16(sc->hw_value); + qch->band = qlink_utils_band_cfg2q(sc->band); + qch->max_power = sc->max_power; + qch->max_reg_power = sc->max_reg_power; + qch->max_antenna_gain = sc->max_antenna_gain; + qch->beacon_found = sc->beacon_found; + qch->dfs_state = qlink_utils_dfs_state_cfg2q(sc->dfs_state); + qch->flags = cpu_to_le32(qlink_utils_chflags_cfg2q(sc->flags)); +} + +static void qtnf_cmd_randmac_tlv_add(struct sk_buff *cmd_skb, + const u8 *mac_addr, + const u8 *mac_addr_mask) +{ + struct qlink_random_mac_addr *randmac; + struct qlink_tlv_hdr *hdr = + skb_put(cmd_skb, sizeof(*hdr) + sizeof(*randmac)); + + hdr->type = cpu_to_le16(QTN_TLV_ID_RANDOM_MAC_ADDR); + hdr->len = cpu_to_le16(sizeof(*randmac)); + randmac = (struct qlink_random_mac_addr *)hdr->val; + + memcpy(randmac->mac_addr, mac_addr, ETH_ALEN); + memcpy(randmac->mac_addr_mask, mac_addr_mask, ETH_ALEN); +} + +int qtnf_cmd_send_scan(struct qtnf_wmac *mac) +{ + struct cfg80211_scan_request *scan_req = mac->scan_req; + u16 dwell_passive = QTNF_SCAN_DWELL_PASSIVE_DEFAULT; + u16 dwell_active = QTNF_SCAN_DWELL_ACTIVE_DEFAULT; + struct wireless_dev *wdev = scan_req->wdev; + struct ieee80211_channel *sc; + struct qlink_cmd_scan *cmd; + struct sk_buff *cmd_skb; + int n_channels = 0; + u64 flags = 0; + int count; + int ret; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, QLINK_VIFID_RSVD, + QLINK_CMD_SCAN, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + cmd = (struct qlink_cmd_scan *)cmd_skb->data; + + if (scan_req->duration) { + dwell_active = scan_req->duration; + dwell_passive = scan_req->duration; + } else if (wdev->iftype == NL80211_IFTYPE_STATION && + wdev->connected) { + /* let device select dwell based on traffic conditions */ + dwell_active = QTNF_SCAN_TIME_AUTO; + dwell_passive = QTNF_SCAN_TIME_AUTO; + } + + cmd->n_ssids = cpu_to_le16(scan_req->n_ssids); + for (count = 0; count < scan_req->n_ssids; ++count) { + qtnf_cmd_skb_put_tlv_arr(cmd_skb, WLAN_EID_SSID, + scan_req->ssids[count].ssid, + scan_req->ssids[count].ssid_len); + } + + if (scan_req->ie_len != 0) + qtnf_cmd_tlv_ie_set_add(cmd_skb, QLINK_IE_SET_PROBE_REQ, + scan_req->ie, scan_req->ie_len); + + for (count = 0; count < scan_req->n_channels; ++count) { + sc = scan_req->channels[count]; + if (sc->flags & IEEE80211_CHAN_DISABLED) + continue; + + pr_debug("[MAC%u] scan chan=%d, freq=%d, flags=%#x\n", + mac->macid, sc->hw_value, sc->center_freq, + sc->flags); + + qtnf_cmd_channel_tlv_add(cmd_skb, sc); + ++n_channels; + } + + if (scan_req->flags & NL80211_SCAN_FLAG_FLUSH) + flags |= QLINK_SCAN_FLAG_FLUSH; + + if (scan_req->duration_mandatory) + flags |= QLINK_SCAN_FLAG_DURATION_MANDATORY; + + cmd->n_channels = cpu_to_le16(n_channels); + cmd->active_dwell = cpu_to_le16(dwell_active); + cmd->passive_dwell = cpu_to_le16(dwell_passive); + cmd->sample_duration = cpu_to_le16(QTNF_SCAN_SAMPLE_DURATION_DEFAULT); + cmd->flags = cpu_to_le64(flags); + + pr_debug("[MAC%u] %s scan dwell active=%u passive=%u duration=%u\n", + mac->macid, + scan_req->duration_mandatory ? "mandatory" : "max", + dwell_active, dwell_passive, + QTNF_SCAN_SAMPLE_DURATION_DEFAULT); + + if (scan_req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) { + pr_debug("[MAC%u] scan with random addr=%pM, mask=%pM\n", + mac->macid, + scan_req->mac_addr, scan_req->mac_addr_mask); + qtnf_cmd_randmac_tlv_add(cmd_skb, scan_req->mac_addr, + scan_req->mac_addr_mask); + } + + qtnf_bus_lock(mac->bus); + ret = qtnf_cmd_send(mac->bus, cmd_skb); + qtnf_bus_unlock(mac->bus); + + return ret; +} + +int qtnf_cmd_send_connect(struct qtnf_vif *vif, + struct cfg80211_connect_params *sme) +{ + struct sk_buff *cmd_skb; + struct qlink_cmd_connect *cmd; + struct qlink_auth_encr *aen; + int ret; + int i; + int n; + u32 connect_flags = 0; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_CONNECT, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + cmd = (struct qlink_cmd_connect *)cmd_skb->data; + + ether_addr_copy(cmd->bssid, vif->bssid); + + if (sme->bssid_hint) + ether_addr_copy(cmd->bssid_hint, sme->bssid_hint); + else + eth_zero_addr(cmd->bssid_hint); + + if (sme->prev_bssid) + ether_addr_copy(cmd->prev_bssid, sme->prev_bssid); + else + eth_zero_addr(cmd->prev_bssid); + + if ((sme->bg_scan_period >= 0) && + (sme->bg_scan_period <= SHRT_MAX)) + cmd->bg_scan_period = cpu_to_le16(sme->bg_scan_period); + else + cmd->bg_scan_period = cpu_to_le16(-1); /* use default value */ + + if (sme->flags & ASSOC_REQ_DISABLE_HT) + connect_flags |= QLINK_STA_CONNECT_DISABLE_HT; + if (sme->flags & ASSOC_REQ_DISABLE_VHT) + connect_flags |= QLINK_STA_CONNECT_DISABLE_VHT; + if (sme->flags & ASSOC_REQ_USE_RRM) + connect_flags |= QLINK_STA_CONNECT_USE_RRM; + + cmd->flags = cpu_to_le32(connect_flags); + memcpy(&cmd->ht_capa, &sme->ht_capa, sizeof(cmd->ht_capa)); + memcpy(&cmd->ht_capa_mask, &sme->ht_capa_mask, + sizeof(cmd->ht_capa_mask)); + memcpy(&cmd->vht_capa, &sme->vht_capa, sizeof(cmd->vht_capa)); + memcpy(&cmd->vht_capa_mask, &sme->vht_capa_mask, + sizeof(cmd->vht_capa_mask)); + cmd->pbss = sme->pbss; + + aen = &cmd->aen; + aen->auth_type = sme->auth_type; + aen->privacy = !!sme->privacy; + cmd->mfp = sme->mfp; + aen->wpa_versions = cpu_to_le32(sme->crypto.wpa_versions); + aen->cipher_group = cpu_to_le32(sme->crypto.cipher_group); + aen->n_ciphers_pairwise = cpu_to_le32(sme->crypto.n_ciphers_pairwise); + + for (i = 0; i < QLINK_MAX_NR_CIPHER_SUITES; i++) + aen->ciphers_pairwise[i] = + cpu_to_le32(sme->crypto.ciphers_pairwise[i]); + + n = min(QLINK_MAX_NR_AKM_SUITES, sme->crypto.n_akm_suites); + aen->n_akm_suites = cpu_to_le32(n); + + for (i = 0; i < n; i++) + aen->akm_suites[i] = cpu_to_le32(sme->crypto.akm_suites[i]); + + aen->control_port = sme->crypto.control_port; + aen->control_port_no_encrypt = + sme->crypto.control_port_no_encrypt; + aen->control_port_ethertype = + cpu_to_le16(be16_to_cpu(sme->crypto.control_port_ethertype)); + + qtnf_cmd_skb_put_tlv_arr(cmd_skb, WLAN_EID_SSID, sme->ssid, + sme->ssid_len); + + if (sme->ie_len != 0) + qtnf_cmd_tlv_ie_set_add(cmd_skb, QLINK_IE_SET_ASSOC_REQ, + sme->ie, sme->ie_len); + + if (sme->channel) + qtnf_cmd_channel_tlv_add(cmd_skb, sme->channel); + + qtnf_bus_lock(vif->mac->bus); + ret = qtnf_cmd_send(vif->mac->bus, cmd_skb); + qtnf_bus_unlock(vif->mac->bus); + + return ret; +} + +int qtnf_cmd_send_external_auth(struct qtnf_vif *vif, + struct cfg80211_external_auth_params *auth) +{ + struct sk_buff *cmd_skb; + struct qlink_cmd_external_auth *cmd; + int ret; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_EXTERNAL_AUTH, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + cmd = (struct qlink_cmd_external_auth *)cmd_skb->data; + + ether_addr_copy(cmd->peer, auth->bssid); + cmd->status = cpu_to_le16(auth->status); + + qtnf_bus_lock(vif->mac->bus); + ret = qtnf_cmd_send(vif->mac->bus, cmd_skb); + qtnf_bus_unlock(vif->mac->bus); + + return ret; +} + +int qtnf_cmd_send_disconnect(struct qtnf_vif *vif, u16 reason_code) +{ + struct sk_buff *cmd_skb; + struct qlink_cmd_disconnect *cmd; + int ret; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_DISCONNECT, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + qtnf_bus_lock(vif->mac->bus); + + cmd = (struct qlink_cmd_disconnect *)cmd_skb->data; + cmd->reason = cpu_to_le16(reason_code); + + ret = qtnf_cmd_send(vif->mac->bus, cmd_skb); + + qtnf_bus_unlock(vif->mac->bus); + + return ret; +} + +int qtnf_cmd_send_updown_intf(struct qtnf_vif *vif, bool up) +{ + struct sk_buff *cmd_skb; + struct qlink_cmd_updown *cmd; + int ret; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_UPDOWN_INTF, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + cmd = (struct qlink_cmd_updown *)cmd_skb->data; + cmd->if_up = !!up; + + qtnf_bus_lock(vif->mac->bus); + ret = qtnf_cmd_send(vif->mac->bus, cmd_skb); + qtnf_bus_unlock(vif->mac->bus); + + return ret; +} + +int qtnf_cmd_reg_notify(struct qtnf_wmac *mac, struct regulatory_request *req, + bool slave_radar, bool dfs_offload) +{ + struct wiphy *wiphy = priv_to_wiphy(mac); + struct qtnf_bus *bus = mac->bus; + struct sk_buff *cmd_skb; + int ret; + struct qlink_cmd_reg_notify *cmd; + enum nl80211_band band; + const struct ieee80211_supported_band *cfg_band; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, QLINK_VIFID_RSVD, + QLINK_CMD_REG_NOTIFY, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + cmd = (struct qlink_cmd_reg_notify *)cmd_skb->data; + cmd->alpha2[0] = req->alpha2[0]; + cmd->alpha2[1] = req->alpha2[1]; + + switch (req->initiator) { + case NL80211_REGDOM_SET_BY_CORE: + cmd->initiator = QLINK_REGDOM_SET_BY_CORE; + break; + case NL80211_REGDOM_SET_BY_USER: + cmd->initiator = QLINK_REGDOM_SET_BY_USER; + break; + case NL80211_REGDOM_SET_BY_DRIVER: + cmd->initiator = QLINK_REGDOM_SET_BY_DRIVER; + break; + case NL80211_REGDOM_SET_BY_COUNTRY_IE: + cmd->initiator = QLINK_REGDOM_SET_BY_COUNTRY_IE; + break; + } + + switch (req->user_reg_hint_type) { + case NL80211_USER_REG_HINT_USER: + cmd->user_reg_hint_type = QLINK_USER_REG_HINT_USER; + break; + case NL80211_USER_REG_HINT_CELL_BASE: + cmd->user_reg_hint_type = QLINK_USER_REG_HINT_CELL_BASE; + break; + case NL80211_USER_REG_HINT_INDOOR: + cmd->user_reg_hint_type = QLINK_USER_REG_HINT_INDOOR; + break; + } + + switch (req->dfs_region) { + case NL80211_DFS_FCC: + cmd->dfs_region = QLINK_DFS_FCC; + break; + case NL80211_DFS_ETSI: + cmd->dfs_region = QLINK_DFS_ETSI; + break; + case NL80211_DFS_JP: + cmd->dfs_region = QLINK_DFS_JP; + break; + default: + cmd->dfs_region = QLINK_DFS_UNSET; + break; + } + + cmd->slave_radar = slave_radar; + cmd->dfs_offload = dfs_offload; + cmd->num_channels = 0; + + for (band = 0; band < NUM_NL80211_BANDS; band++) { + unsigned int i; + + cfg_band = wiphy->bands[band]; + if (!cfg_band) + continue; + + cmd->num_channels += cfg_band->n_channels; + + for (i = 0; i < cfg_band->n_channels; ++i) { + qtnf_cmd_channel_tlv_add(cmd_skb, + &cfg_band->channels[i]); + } + } + + qtnf_bus_lock(bus); + ret = qtnf_cmd_send(bus, cmd_skb); + qtnf_bus_unlock(bus); + + return ret; +} + +static int +qtnf_cmd_resp_proc_chan_stat_info(struct survey_info *survey, + const u8 *payload, size_t payload_len) +{ + const struct qlink_chan_stats *stats = NULL; + const struct qlink_tlv_hdr *tlv; + u16 tlv_value_len; + u16 tlv_type; + const u8 *map = NULL; + unsigned int map_len = 0; + unsigned int stats_len = 0; + + qlink_for_each_tlv(tlv, payload, payload_len) { + tlv_type = le16_to_cpu(tlv->type); + tlv_value_len = le16_to_cpu(tlv->len); + + switch (tlv_type) { + case QTN_TLV_ID_BITMAP: + map = tlv->val; + map_len = tlv_value_len; + break; + case QTN_TLV_ID_CHANNEL_STATS: + stats = (struct qlink_chan_stats *)tlv->val; + stats_len = tlv_value_len; + break; + default: + pr_info("Unknown TLV type: %#x\n", tlv_type); + break; + } + } + + if (!qlink_tlv_parsing_ok(tlv, payload, payload_len)) { + pr_err("Malformed TLV buffer\n"); + return -EINVAL; + } + + if (!map || !stats) + return 0; + +#define qtnf_chan_stat_avail(stat_name, bitn) \ + (qtnf_utils_is_bit_set(map, bitn, map_len) && \ + (offsetofend(struct qlink_chan_stats, stat_name) <= stats_len)) + + if (qtnf_chan_stat_avail(time_on, QLINK_CHAN_STAT_TIME_ON)) { + survey->filled |= SURVEY_INFO_TIME; + survey->time = le64_to_cpu(stats->time_on); + } + + if (qtnf_chan_stat_avail(time_tx, QLINK_CHAN_STAT_TIME_TX)) { + survey->filled |= SURVEY_INFO_TIME_TX; + survey->time_tx = le64_to_cpu(stats->time_tx); + } + + if (qtnf_chan_stat_avail(time_rx, QLINK_CHAN_STAT_TIME_RX)) { + survey->filled |= SURVEY_INFO_TIME_RX; + survey->time_rx = le64_to_cpu(stats->time_rx); + } + + if (qtnf_chan_stat_avail(cca_busy, QLINK_CHAN_STAT_CCA_BUSY)) { + survey->filled |= SURVEY_INFO_TIME_BUSY; + survey->time_busy = le64_to_cpu(stats->cca_busy); + } + + if (qtnf_chan_stat_avail(cca_busy_ext, QLINK_CHAN_STAT_CCA_BUSY_EXT)) { + survey->filled |= SURVEY_INFO_TIME_EXT_BUSY; + survey->time_ext_busy = le64_to_cpu(stats->cca_busy_ext); + } + + if (qtnf_chan_stat_avail(time_scan, QLINK_CHAN_STAT_TIME_SCAN)) { + survey->filled |= SURVEY_INFO_TIME_SCAN; + survey->time_scan = le64_to_cpu(stats->time_scan); + } + + if (qtnf_chan_stat_avail(chan_noise, QLINK_CHAN_STAT_CHAN_NOISE)) { + survey->filled |= SURVEY_INFO_NOISE_DBM; + survey->noise = stats->chan_noise; + } + +#undef qtnf_chan_stat_avail + + return 0; +} + +int qtnf_cmd_get_chan_stats(struct qtnf_wmac *mac, u32 chan_freq, + struct survey_info *survey) +{ + struct sk_buff *cmd_skb, *resp_skb = NULL; + struct qlink_cmd_get_chan_stats *cmd; + struct qlink_resp_get_chan_stats *resp; + size_t var_data_len = 0; + int ret = 0; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, QLINK_VIFID_RSVD, + QLINK_CMD_CHAN_STATS, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + cmd = (struct qlink_cmd_get_chan_stats *)cmd_skb->data; + cmd->channel_freq = cpu_to_le32(chan_freq); + + qtnf_bus_lock(mac->bus); + ret = qtnf_cmd_send_with_reply(mac->bus, cmd_skb, &resp_skb, + sizeof(*resp), &var_data_len); + qtnf_bus_unlock(mac->bus); + + if (ret) + goto out; + + resp = (struct qlink_resp_get_chan_stats *)resp_skb->data; + + if (le32_to_cpu(resp->chan_freq) != chan_freq) { + pr_err("[MAC%u] channel stats freq %u != requested %u\n", + mac->macid, le32_to_cpu(resp->chan_freq), chan_freq); + ret = -EINVAL; + goto out; + } + + ret = qtnf_cmd_resp_proc_chan_stat_info(survey, resp->info, + var_data_len); + +out: + consume_skb(resp_skb); + + return ret; +} + +int qtnf_cmd_send_chan_switch(struct qtnf_vif *vif, + struct cfg80211_csa_settings *params) +{ + struct qtnf_wmac *mac = vif->mac; + struct qlink_cmd_chan_switch *cmd; + struct sk_buff *cmd_skb; + int ret; + u64 flags = 0; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(mac->macid, vif->vifid, + QLINK_CMD_CHAN_SWITCH, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + if (params->radar_required) + flags |= QLINK_CHAN_SW_RADAR_REQUIRED; + + if (params->block_tx) + flags |= QLINK_CHAN_SW_BLOCK_TX; + + cmd = (struct qlink_cmd_chan_switch *)cmd_skb->data; + qlink_chandef_cfg2q(¶ms->chandef, &cmd->channel); + cmd->flags = cpu_to_le64(flags); + cmd->beacon_count = params->count; + + qtnf_bus_lock(mac->bus); + ret = qtnf_cmd_send(mac->bus, cmd_skb); + qtnf_bus_unlock(mac->bus); + + return ret; +} + +int qtnf_cmd_get_channel(struct qtnf_vif *vif, struct cfg80211_chan_def *chdef) +{ + struct qtnf_bus *bus = vif->mac->bus; + const struct qlink_resp_channel_get *resp; + struct sk_buff *cmd_skb; + struct sk_buff *resp_skb = NULL; + int ret; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_CHAN_GET, + sizeof(struct qlink_cmd)); + if (!cmd_skb) + return -ENOMEM; + + qtnf_bus_lock(bus); + ret = qtnf_cmd_send_with_reply(bus, cmd_skb, &resp_skb, + sizeof(*resp), NULL); + if (ret) + goto out; + + resp = (const struct qlink_resp_channel_get *)resp_skb->data; + qlink_chandef_q2cfg(priv_to_wiphy(vif->mac), &resp->chan, chdef); + +out: + qtnf_bus_unlock(bus); + consume_skb(resp_skb); + + return ret; +} + +int qtnf_cmd_start_cac(const struct qtnf_vif *vif, + const struct cfg80211_chan_def *chdef, + u32 cac_time_ms) +{ + struct qtnf_bus *bus = vif->mac->bus; + struct sk_buff *cmd_skb; + struct qlink_cmd_start_cac *cmd; + int ret; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_START_CAC, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + cmd = (struct qlink_cmd_start_cac *)cmd_skb->data; + cmd->cac_time_ms = cpu_to_le32(cac_time_ms); + qlink_chandef_cfg2q(chdef, &cmd->chan); + + qtnf_bus_lock(bus); + ret = qtnf_cmd_send(bus, cmd_skb); + qtnf_bus_unlock(bus); + + return ret; +} + +int qtnf_cmd_set_mac_acl(const struct qtnf_vif *vif, + const struct cfg80211_acl_data *params) +{ + struct qtnf_bus *bus = vif->mac->bus; + struct sk_buff *cmd_skb; + struct qlink_tlv_hdr *tlv; + size_t acl_size = struct_size(params, mac_addrs, params->n_acl_entries); + int ret; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_SET_MAC_ACL, + sizeof(struct qlink_cmd)); + if (!cmd_skb) + return -ENOMEM; + + tlv = skb_put(cmd_skb, sizeof(*tlv) + round_up(acl_size, QLINK_ALIGN)); + tlv->type = cpu_to_le16(QTN_TLV_ID_ACL_DATA); + tlv->len = cpu_to_le16(acl_size); + qlink_acl_data_cfg2q(params, (struct qlink_acl_data *)tlv->val); + + qtnf_bus_lock(bus); + ret = qtnf_cmd_send(bus, cmd_skb); + qtnf_bus_unlock(bus); + + return ret; +} + +int qtnf_cmd_send_pm_set(const struct qtnf_vif *vif, u8 pm_mode, int timeout) +{ + struct qtnf_bus *bus = vif->mac->bus; + struct sk_buff *cmd_skb; + struct qlink_cmd_pm_set *cmd; + int ret = 0; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_PM_SET, sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + cmd = (struct qlink_cmd_pm_set *)cmd_skb->data; + cmd->pm_mode = pm_mode; + cmd->pm_standby_timer = cpu_to_le32(timeout); + + qtnf_bus_lock(bus); + + ret = qtnf_cmd_send(bus, cmd_skb); + + qtnf_bus_unlock(bus); + + return ret; +} + +int qtnf_cmd_get_tx_power(const struct qtnf_vif *vif, int *dbm) +{ + struct qtnf_bus *bus = vif->mac->bus; + const struct qlink_resp_txpwr *resp; + struct sk_buff *resp_skb = NULL; + struct qlink_cmd_txpwr *cmd; + struct sk_buff *cmd_skb; + int ret = 0; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_TXPWR, sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + cmd = (struct qlink_cmd_txpwr *)cmd_skb->data; + cmd->op_type = QLINK_TXPWR_GET; + + qtnf_bus_lock(bus); + + ret = qtnf_cmd_send_with_reply(bus, cmd_skb, &resp_skb, + sizeof(*resp), NULL); + if (ret) + goto out; + + resp = (const struct qlink_resp_txpwr *)resp_skb->data; + *dbm = MBM_TO_DBM(le32_to_cpu(resp->txpwr)); + +out: + qtnf_bus_unlock(bus); + consume_skb(resp_skb); + + return ret; +} + +int qtnf_cmd_set_tx_power(const struct qtnf_vif *vif, + enum nl80211_tx_power_setting type, int mbm) +{ + struct qtnf_bus *bus = vif->mac->bus; + const struct qlink_resp_txpwr *resp; + struct sk_buff *resp_skb = NULL; + struct qlink_cmd_txpwr *cmd; + struct sk_buff *cmd_skb; + int ret = 0; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_TXPWR, sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + cmd = (struct qlink_cmd_txpwr *)cmd_skb->data; + cmd->op_type = QLINK_TXPWR_SET; + cmd->txpwr_setting = type; + cmd->txpwr = cpu_to_le32(mbm); + + qtnf_bus_lock(bus); + + ret = qtnf_cmd_send_with_reply(bus, cmd_skb, &resp_skb, + sizeof(*resp), NULL); + + qtnf_bus_unlock(bus); + consume_skb(resp_skb); + + return ret; +} + +int qtnf_cmd_send_wowlan_set(const struct qtnf_vif *vif, + const struct cfg80211_wowlan *wowl) +{ + struct qtnf_bus *bus = vif->mac->bus; + struct sk_buff *cmd_skb; + struct qlink_cmd_wowlan_set *cmd; + u32 triggers = 0; + int count = 0; + int ret = 0; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_WOWLAN_SET, sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + qtnf_bus_lock(bus); + + cmd = (struct qlink_cmd_wowlan_set *)cmd_skb->data; + + if (wowl) { + if (wowl->disconnect) + triggers |= QLINK_WOWLAN_TRIG_DISCONNECT; + + if (wowl->magic_pkt) + triggers |= QLINK_WOWLAN_TRIG_MAGIC_PKT; + + if (wowl->n_patterns && wowl->patterns) { + triggers |= QLINK_WOWLAN_TRIG_PATTERN_PKT; + while (count < wowl->n_patterns) { + qtnf_cmd_skb_put_tlv_arr(cmd_skb, + QTN_TLV_ID_WOWLAN_PATTERN, + wowl->patterns[count].pattern, + wowl->patterns[count].pattern_len); + count++; + } + } + } + + cmd->triggers = cpu_to_le32(triggers); + + ret = qtnf_cmd_send(bus, cmd_skb); + + qtnf_bus_unlock(bus); + return ret; +} + +int qtnf_cmd_netdev_changeupper(const struct qtnf_vif *vif, int br_domain) +{ + struct qtnf_bus *bus = vif->mac->bus; + struct sk_buff *cmd_skb; + struct qlink_cmd_ndev_changeupper *cmd; + int ret; + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_NDEV_EVENT, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + pr_debug("[VIF%u.%u] set broadcast domain to %d\n", + vif->mac->macid, vif->vifid, br_domain); + + cmd = (struct qlink_cmd_ndev_changeupper *)cmd_skb->data; + cmd->nehdr.event = cpu_to_le16(QLINK_NDEV_EVENT_CHANGEUPPER); + cmd->upper_type = QLINK_NDEV_UPPER_TYPE_BRIDGE; + cmd->br_domain = cpu_to_le32(br_domain); + + qtnf_bus_lock(bus); + ret = qtnf_cmd_send(bus, cmd_skb); + qtnf_bus_unlock(bus); + + if (ret) + pr_err("[VIF%u.%u] failed to set broadcast domain\n", + vif->mac->macid, vif->vifid); + + return ret; +} + +int qtnf_cmd_send_update_owe(struct qtnf_vif *vif, + struct cfg80211_update_owe_info *owe) +{ + struct qlink_cmd_update_owe *cmd; + struct sk_buff *cmd_skb; + int ret; + + if (sizeof(*cmd) + owe->ie_len > QTNF_MAX_CMD_BUF_SIZE) { + pr_warn("VIF%u.%u: OWE update IEs too big: %zu\n", + vif->mac->macid, vif->vifid, owe->ie_len); + return -E2BIG; + } + + cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid, + QLINK_CMD_UPDATE_OWE, + sizeof(*cmd)); + if (!cmd_skb) + return -ENOMEM; + + cmd = (struct qlink_cmd_update_owe *)cmd_skb->data; + ether_addr_copy(cmd->peer, owe->peer); + cmd->status = cpu_to_le16(owe->status); + if (owe->ie_len && owe->ie) + qtnf_cmd_skb_put_buffer(cmd_skb, owe->ie, owe->ie_len); + + qtnf_bus_lock(vif->mac->bus); + ret = qtnf_cmd_send(vif->mac->bus, cmd_skb); + qtnf_bus_unlock(vif->mac->bus); + + return ret; +} diff --git a/drivers/net/wireless/quantenna/qtnfmac/commands.h b/drivers/net/wireless/quantenna/qtnfmac/commands.h new file mode 100644 index 000000000..72ad6ae5c --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/commands.h @@ -0,0 +1,82 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* Copyright (c) 2016 Quantenna Communications. All rights reserved. */ + +#ifndef QLINK_COMMANDS_H_ +#define QLINK_COMMANDS_H_ + +#include <linux/nl80211.h> + +#include "core.h" +#include "bus.h" + +int qtnf_cmd_send_init_fw(struct qtnf_bus *bus); +void qtnf_cmd_send_deinit_fw(struct qtnf_bus *bus); +int qtnf_cmd_get_hw_info(struct qtnf_bus *bus); +int qtnf_cmd_get_mac_info(struct qtnf_wmac *mac); +int qtnf_cmd_send_add_intf(struct qtnf_vif *vif, enum nl80211_iftype iftype, + int use4addr, u8 *mac_addr); +int qtnf_cmd_send_change_intf_type(struct qtnf_vif *vif, + enum nl80211_iftype iftype, + int use4addr, + u8 *mac_addr); +int qtnf_cmd_send_del_intf(struct qtnf_vif *vif); +int qtnf_cmd_band_info_get(struct qtnf_wmac *mac, + struct ieee80211_supported_band *band); +int qtnf_cmd_send_regulatory_config(struct qtnf_wmac *mac, const char *alpha2); +int qtnf_cmd_send_start_ap(struct qtnf_vif *vif, + const struct cfg80211_ap_settings *s); +int qtnf_cmd_send_stop_ap(struct qtnf_vif *vif); +int qtnf_cmd_send_register_mgmt(struct qtnf_vif *vif, u16 frame_type, bool reg); +int qtnf_cmd_send_frame(struct qtnf_vif *vif, u32 cookie, u16 flags, + u16 freq, const u8 *buf, size_t len); +int qtnf_cmd_send_mgmt_set_appie(struct qtnf_vif *vif, u8 frame_type, + const u8 *buf, size_t len); +int qtnf_cmd_get_sta_info(struct qtnf_vif *vif, const u8 *sta_mac, + struct station_info *sinfo); +int qtnf_cmd_send_phy_params(struct qtnf_wmac *mac, u16 cmd_action, + void *data_buf); +int qtnf_cmd_send_add_key(struct qtnf_vif *vif, u8 key_index, bool pairwise, + const u8 *mac_addr, struct key_params *params); +int qtnf_cmd_send_del_key(struct qtnf_vif *vif, u8 key_index, bool pairwise, + const u8 *mac_addr); +int qtnf_cmd_send_set_default_key(struct qtnf_vif *vif, u8 key_index, + bool unicast, bool multicast); +int qtnf_cmd_send_set_default_mgmt_key(struct qtnf_vif *vif, u8 key_index); +int qtnf_cmd_send_add_sta(struct qtnf_vif *vif, const u8 *mac, + struct station_parameters *params); +int qtnf_cmd_send_change_sta(struct qtnf_vif *vif, const u8 *mac, + struct station_parameters *params); +int qtnf_cmd_send_del_sta(struct qtnf_vif *vif, + struct station_del_parameters *params); +int qtnf_cmd_send_scan(struct qtnf_wmac *mac); +int qtnf_cmd_send_connect(struct qtnf_vif *vif, + struct cfg80211_connect_params *sme); +int qtnf_cmd_send_external_auth(struct qtnf_vif *vif, + struct cfg80211_external_auth_params *auth); +int qtnf_cmd_send_disconnect(struct qtnf_vif *vif, + u16 reason_code); +int qtnf_cmd_send_updown_intf(struct qtnf_vif *vif, + bool up); +int qtnf_cmd_reg_notify(struct qtnf_wmac *mac, struct regulatory_request *req, + bool slave_radar, bool dfs_offload); +int qtnf_cmd_get_chan_stats(struct qtnf_wmac *mac, u32 chan_freq, + struct survey_info *survey); +int qtnf_cmd_send_chan_switch(struct qtnf_vif *vif, + struct cfg80211_csa_settings *params); +int qtnf_cmd_get_channel(struct qtnf_vif *vif, struct cfg80211_chan_def *chdef); +int qtnf_cmd_start_cac(const struct qtnf_vif *vif, + const struct cfg80211_chan_def *chdef, + u32 cac_time_ms); +int qtnf_cmd_set_mac_acl(const struct qtnf_vif *vif, + const struct cfg80211_acl_data *params); +int qtnf_cmd_send_pm_set(const struct qtnf_vif *vif, u8 pm_mode, int timeout); +int qtnf_cmd_get_tx_power(const struct qtnf_vif *vif, int *dbm); +int qtnf_cmd_set_tx_power(const struct qtnf_vif *vif, + enum nl80211_tx_power_setting type, int mbm); +int qtnf_cmd_send_wowlan_set(const struct qtnf_vif *vif, + const struct cfg80211_wowlan *wowl); +int qtnf_cmd_netdev_changeupper(const struct qtnf_vif *vif, int br_domain); +int qtnf_cmd_send_update_owe(struct qtnf_vif *vif, + struct cfg80211_update_owe_info *owe); + +#endif /* QLINK_COMMANDS_H_ */ diff --git a/drivers/net/wireless/quantenna/qtnfmac/core.c b/drivers/net/wireless/quantenna/qtnfmac/core.c new file mode 100644 index 000000000..2a63ffdc4 --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/core.c @@ -0,0 +1,946 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/if_ether.h> +#include <linux/nospec.h> + +#include "core.h" +#include "bus.h" +#include "trans.h" +#include "commands.h" +#include "cfg80211.h" +#include "event.h" +#include "util.h" +#include "switchdev.h" + +#define QTNF_PRIMARY_VIF_IDX 0 + +static bool slave_radar = true; +module_param(slave_radar, bool, 0644); +MODULE_PARM_DESC(slave_radar, "set 0 to disable radar detection in slave mode"); + +static bool dfs_offload; +module_param(dfs_offload, bool, 0644); +MODULE_PARM_DESC(dfs_offload, "set 1 to enable DFS offload to firmware"); + +static struct dentry *qtnf_debugfs_dir; + +bool qtnf_slave_radar_get(void) +{ + return slave_radar; +} + +bool qtnf_dfs_offload_get(void) +{ + return dfs_offload; +} + +struct qtnf_wmac *qtnf_core_get_mac(const struct qtnf_bus *bus, u8 macid) +{ + struct qtnf_wmac *mac = NULL; + + if (macid >= QTNF_MAX_MAC) { + pr_err("invalid MAC index %u\n", macid); + return NULL; + } + + macid = array_index_nospec(macid, QTNF_MAX_MAC); + mac = bus->mac[macid]; + + if (unlikely(!mac)) { + pr_err("MAC%u: not initialized\n", macid); + return NULL; + } + + return mac; +} + +/* Netdev handler for open. + */ +static int qtnf_netdev_open(struct net_device *ndev) +{ + netif_carrier_off(ndev); + qtnf_netdev_updown(ndev, 1); + return 0; +} + +/* Netdev handler for close. + */ +static int qtnf_netdev_close(struct net_device *ndev) +{ + netif_carrier_off(ndev); + qtnf_virtual_intf_cleanup(ndev); + qtnf_netdev_updown(ndev, 0); + return 0; +} + +static void qtnf_packet_send_hi_pri(struct sk_buff *skb) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(skb->dev); + + skb_queue_tail(&vif->high_pri_tx_queue, skb); + queue_work(vif->mac->bus->hprio_workqueue, &vif->high_pri_tx_work); +} + +/* Netdev handler for data transmission. + */ +static netdev_tx_t +qtnf_netdev_hard_start_xmit(struct sk_buff *skb, struct net_device *ndev) +{ + struct qtnf_vif *vif; + struct qtnf_wmac *mac; + + vif = qtnf_netdev_get_priv(ndev); + + if (unlikely(skb->dev != ndev)) { + pr_err_ratelimited("invalid skb->dev"); + dev_kfree_skb_any(skb); + return 0; + } + + if (unlikely(vif->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED)) { + pr_err_ratelimited("%s: VIF not initialized\n", ndev->name); + dev_kfree_skb_any(skb); + return 0; + } + + mac = vif->mac; + if (unlikely(!mac)) { + pr_err_ratelimited("%s: NULL mac pointer", ndev->name); + dev_kfree_skb_any(skb); + return 0; + } + + if (!skb->len || (skb->len > ETH_FRAME_LEN)) { + pr_err_ratelimited("%s: invalid skb len %d\n", ndev->name, + skb->len); + dev_kfree_skb_any(skb); + ndev->stats.tx_dropped++; + return 0; + } + + /* tx path is enabled: reset vif timeout */ + vif->cons_tx_timeout_cnt = 0; + + if (unlikely(skb->protocol == htons(ETH_P_PAE))) { + qtnf_packet_send_hi_pri(skb); + dev_sw_netstats_tx_add(ndev, 1, skb->len); + return NETDEV_TX_OK; + } + + return qtnf_bus_data_tx(mac->bus, skb, mac->macid, vif->vifid); +} + +/* Netdev handler for transmission timeout. + */ +static void qtnf_netdev_tx_timeout(struct net_device *ndev, unsigned int txqueue) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); + struct qtnf_wmac *mac; + struct qtnf_bus *bus; + + if (unlikely(!vif || !vif->mac || !vif->mac->bus)) + return; + + mac = vif->mac; + bus = mac->bus; + + pr_warn("VIF%u.%u: Tx timeout- %lu\n", mac->macid, vif->vifid, jiffies); + + qtnf_bus_data_tx_timeout(bus, ndev); + ndev->stats.tx_errors++; + + if (++vif->cons_tx_timeout_cnt > QTNF_TX_TIMEOUT_TRSHLD) { + pr_err("Tx timeout threshold exceeded !\n"); + pr_err("schedule interface %s reset !\n", netdev_name(ndev)); + queue_work(bus->workqueue, &vif->reset_work); + } +} + +static int qtnf_netdev_set_mac_address(struct net_device *ndev, void *addr) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); + struct sockaddr *sa = addr; + int ret; + unsigned char old_addr[ETH_ALEN]; + + memcpy(old_addr, sa->sa_data, sizeof(old_addr)); + + ret = eth_mac_addr(ndev, sa); + if (ret) + return ret; + + qtnf_scan_done(vif->mac, true); + + ret = qtnf_cmd_send_change_intf_type(vif, vif->wdev.iftype, + vif->wdev.use_4addr, + sa->sa_data); + + if (ret) + eth_hw_addr_set(ndev, old_addr); + + return ret; +} + +static int qtnf_netdev_port_parent_id(struct net_device *ndev, + struct netdev_phys_item_id *ppid) +{ + const struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); + const struct qtnf_bus *bus = vif->mac->bus; + + ppid->id_len = sizeof(bus->hw_id); + memcpy(&ppid->id, bus->hw_id, ppid->id_len); + + return 0; +} + +static int qtnf_netdev_alloc_pcpu_stats(struct net_device *dev) +{ + dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); + + return dev->tstats ? 0 : -ENOMEM; +} + +static void qtnf_netdev_free_pcpu_stats(struct net_device *dev) +{ + free_percpu(dev->tstats); +} + +/* Network device ops handlers */ +const struct net_device_ops qtnf_netdev_ops = { + .ndo_init = qtnf_netdev_alloc_pcpu_stats, + .ndo_uninit = qtnf_netdev_free_pcpu_stats, + .ndo_open = qtnf_netdev_open, + .ndo_stop = qtnf_netdev_close, + .ndo_start_xmit = qtnf_netdev_hard_start_xmit, + .ndo_tx_timeout = qtnf_netdev_tx_timeout, + .ndo_get_stats64 = dev_get_tstats64, + .ndo_set_mac_address = qtnf_netdev_set_mac_address, + .ndo_get_port_parent_id = qtnf_netdev_port_parent_id, +}; + +static int qtnf_mac_init_single_band(struct wiphy *wiphy, + struct qtnf_wmac *mac, + enum nl80211_band band) +{ + int ret; + + wiphy->bands[band] = kzalloc(sizeof(*wiphy->bands[band]), GFP_KERNEL); + if (!wiphy->bands[band]) + return -ENOMEM; + + wiphy->bands[band]->band = band; + + ret = qtnf_cmd_band_info_get(mac, wiphy->bands[band]); + if (ret) { + pr_err("MAC%u: band %u: failed to get chans info: %d\n", + mac->macid, band, ret); + return ret; + } + + qtnf_band_init_rates(wiphy->bands[band]); + + return 0; +} + +static int qtnf_mac_init_bands(struct qtnf_wmac *mac) +{ + struct wiphy *wiphy = priv_to_wiphy(mac); + int ret = 0; + + if (mac->macinfo.bands_cap & QLINK_BAND_2GHZ) { + ret = qtnf_mac_init_single_band(wiphy, mac, NL80211_BAND_2GHZ); + if (ret) + goto out; + } + + if (mac->macinfo.bands_cap & QLINK_BAND_5GHZ) { + ret = qtnf_mac_init_single_band(wiphy, mac, NL80211_BAND_5GHZ); + if (ret) + goto out; + } + + if (mac->macinfo.bands_cap & QLINK_BAND_60GHZ) + ret = qtnf_mac_init_single_band(wiphy, mac, NL80211_BAND_60GHZ); + +out: + return ret; +} + +struct qtnf_vif *qtnf_mac_get_free_vif(struct qtnf_wmac *mac) +{ + struct qtnf_vif *vif; + int i; + + for (i = 0; i < QTNF_MAX_INTF; i++) { + vif = &mac->iflist[i]; + if (vif->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED) + return vif; + } + + return NULL; +} + +struct qtnf_vif *qtnf_mac_get_base_vif(struct qtnf_wmac *mac) +{ + struct qtnf_vif *vif; + + vif = &mac->iflist[QTNF_PRIMARY_VIF_IDX]; + + if (vif->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED) + return NULL; + + return vif; +} + +void qtnf_mac_iface_comb_free(struct qtnf_wmac *mac) +{ + struct ieee80211_iface_combination *comb; + int i; + + if (mac->macinfo.if_comb) { + for (i = 0; i < mac->macinfo.n_if_comb; i++) { + comb = &mac->macinfo.if_comb[i]; + kfree(comb->limits); + comb->limits = NULL; + } + + kfree(mac->macinfo.if_comb); + mac->macinfo.if_comb = NULL; + } +} + +void qtnf_mac_ext_caps_free(struct qtnf_wmac *mac) +{ + if (mac->macinfo.extended_capabilities_len) { + kfree(mac->macinfo.extended_capabilities); + mac->macinfo.extended_capabilities = NULL; + + kfree(mac->macinfo.extended_capabilities_mask); + mac->macinfo.extended_capabilities_mask = NULL; + + mac->macinfo.extended_capabilities_len = 0; + } +} + +static void qtnf_vif_reset_handler(struct work_struct *work) +{ + struct qtnf_vif *vif = container_of(work, struct qtnf_vif, reset_work); + + rtnl_lock(); + + if (vif->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED) { + rtnl_unlock(); + return; + } + + /* stop tx completely */ + netif_tx_stop_all_queues(vif->netdev); + if (netif_carrier_ok(vif->netdev)) + netif_carrier_off(vif->netdev); + + qtnf_cfg80211_vif_reset(vif); + + rtnl_unlock(); +} + +static void qtnf_mac_init_primary_intf(struct qtnf_wmac *mac) +{ + struct qtnf_vif *vif = &mac->iflist[QTNF_PRIMARY_VIF_IDX]; + + vif->wdev.iftype = NL80211_IFTYPE_STATION; + vif->bss_priority = QTNF_DEF_BSS_PRIORITY; + vif->wdev.wiphy = priv_to_wiphy(mac); + INIT_WORK(&vif->reset_work, qtnf_vif_reset_handler); + vif->cons_tx_timeout_cnt = 0; +} + +static void qtnf_mac_scan_finish(struct qtnf_wmac *mac, bool aborted) +{ + struct cfg80211_scan_info info = { + .aborted = aborted, + }; + + mutex_lock(&mac->mac_lock); + + if (mac->scan_req) { + cfg80211_scan_done(mac->scan_req, &info); + mac->scan_req = NULL; + } + + mutex_unlock(&mac->mac_lock); +} + +void qtnf_scan_done(struct qtnf_wmac *mac, bool aborted) +{ + cancel_delayed_work_sync(&mac->scan_timeout); + qtnf_mac_scan_finish(mac, aborted); +} + +static void qtnf_mac_scan_timeout(struct work_struct *work) +{ + struct qtnf_wmac *mac = + container_of(work, struct qtnf_wmac, scan_timeout.work); + + pr_warn("MAC%d: scan timed out\n", mac->macid); + qtnf_mac_scan_finish(mac, true); +} + +static void qtnf_vif_send_data_high_pri(struct work_struct *work) +{ + struct qtnf_vif *vif = + container_of(work, struct qtnf_vif, high_pri_tx_work); + struct sk_buff *skb; + + if (!vif->netdev || + vif->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED) + return; + + while ((skb = skb_dequeue(&vif->high_pri_tx_queue))) { + qtnf_cmd_send_frame(vif, 0, QLINK_FRAME_TX_FLAG_8023, + 0, skb->data, skb->len); + dev_kfree_skb_any(skb); + } +} + +static struct qtnf_wmac *qtnf_core_mac_alloc(struct qtnf_bus *bus, + unsigned int macid) +{ + struct platform_device *pdev = NULL; + struct qtnf_wmac *mac; + struct qtnf_vif *vif; + struct wiphy *wiphy; + unsigned int i; + + if (bus->hw_info.num_mac > 1) { + pdev = platform_device_register_data(bus->dev, + dev_name(bus->dev), + macid, NULL, 0); + if (IS_ERR(pdev)) + return ERR_PTR(-EINVAL); + } + + wiphy = qtnf_wiphy_allocate(bus, pdev); + if (!wiphy) { + if (pdev) + platform_device_unregister(pdev); + return ERR_PTR(-ENOMEM); + } + + mac = wiphy_priv(wiphy); + + mac->macid = macid; + mac->pdev = pdev; + mac->bus = bus; + mutex_init(&mac->mac_lock); + INIT_DELAYED_WORK(&mac->scan_timeout, qtnf_mac_scan_timeout); + + for (i = 0; i < QTNF_MAX_INTF; i++) { + vif = &mac->iflist[i]; + + memset(vif, 0, sizeof(*vif)); + vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; + vif->mac = mac; + vif->vifid = i; + qtnf_sta_list_init(&vif->sta_list); + INIT_WORK(&vif->high_pri_tx_work, qtnf_vif_send_data_high_pri); + skb_queue_head_init(&vif->high_pri_tx_queue); + } + + qtnf_mac_init_primary_intf(mac); + bus->mac[macid] = mac; + + return mac; +} + +static const struct ethtool_ops qtnf_ethtool_ops = { + .get_drvinfo = cfg80211_get_drvinfo, +}; + +int qtnf_core_net_attach(struct qtnf_wmac *mac, struct qtnf_vif *vif, + const char *name, unsigned char name_assign_type) +{ + struct wiphy *wiphy = priv_to_wiphy(mac); + struct net_device *dev; + void *qdev_vif; + int ret; + + dev = alloc_netdev_mqs(sizeof(struct qtnf_vif *), name, + name_assign_type, ether_setup, 1, 1); + if (!dev) + return -ENOMEM; + + vif->netdev = dev; + + dev->netdev_ops = &qtnf_netdev_ops; + dev->needs_free_netdev = true; + dev_net_set(dev, wiphy_net(wiphy)); + dev->ieee80211_ptr = &vif->wdev; + eth_hw_addr_set(dev, vif->mac_addr); + dev->flags |= IFF_BROADCAST | IFF_MULTICAST; + dev->watchdog_timeo = QTNF_DEF_WDOG_TIMEOUT; + dev->tx_queue_len = 100; + dev->ethtool_ops = &qtnf_ethtool_ops; + + if (qtnf_hwcap_is_set(&mac->bus->hw_info, QLINK_HW_CAPAB_HW_BRIDGE)) + dev->needed_tailroom = sizeof(struct qtnf_frame_meta_info); + + qdev_vif = netdev_priv(dev); + *((void **)qdev_vif) = vif; + + SET_NETDEV_DEV(dev, wiphy_dev(wiphy)); + + ret = cfg80211_register_netdevice(dev); + if (ret) { + free_netdev(dev); + vif->netdev = NULL; + } + + return ret; +} + +static void qtnf_core_mac_detach(struct qtnf_bus *bus, unsigned int macid) +{ + struct qtnf_wmac *mac; + struct wiphy *wiphy; + struct qtnf_vif *vif; + unsigned int i; + enum nl80211_band band; + + mac = bus->mac[macid]; + + if (!mac) + return; + + wiphy = priv_to_wiphy(mac); + + for (i = 0; i < QTNF_MAX_INTF; i++) { + vif = &mac->iflist[i]; + rtnl_lock(); + if (vif->netdev && + vif->wdev.iftype != NL80211_IFTYPE_UNSPECIFIED) { + qtnf_virtual_intf_cleanup(vif->netdev); + qtnf_del_virtual_intf(wiphy, &vif->wdev); + } + rtnl_unlock(); + qtnf_sta_list_free(&vif->sta_list); + } + + if (mac->wiphy_registered) + wiphy_unregister(wiphy); + + for (band = NL80211_BAND_2GHZ; band < NUM_NL80211_BANDS; ++band) { + if (!wiphy->bands[band]) + continue; + + kfree(wiphy->bands[band]->iftype_data); + wiphy->bands[band]->n_iftype_data = 0; + + kfree(wiphy->bands[band]->channels); + wiphy->bands[band]->n_channels = 0; + + kfree(wiphy->bands[band]); + wiphy->bands[band] = NULL; + } + + platform_device_unregister(mac->pdev); + qtnf_mac_iface_comb_free(mac); + qtnf_mac_ext_caps_free(mac); + kfree(mac->macinfo.wowlan); + kfree(mac->rd); + mac->rd = NULL; + wiphy_free(wiphy); + bus->mac[macid] = NULL; +} + +static int qtnf_core_mac_attach(struct qtnf_bus *bus, unsigned int macid) +{ + struct qtnf_wmac *mac; + struct qtnf_vif *vif; + int ret; + + if (!(bus->hw_info.mac_bitmap & BIT(macid))) { + pr_info("MAC%u is not active in FW\n", macid); + return 0; + } + + mac = qtnf_core_mac_alloc(bus, macid); + if (IS_ERR(mac)) { + pr_err("MAC%u allocation failed\n", macid); + return PTR_ERR(mac); + } + + vif = qtnf_mac_get_base_vif(mac); + if (!vif) { + pr_err("MAC%u: primary VIF is not ready\n", macid); + ret = -EFAULT; + goto error; + } + + ret = qtnf_cmd_send_add_intf(vif, vif->wdev.iftype, + vif->wdev.use_4addr, vif->mac_addr); + if (ret) { + pr_err("MAC%u: failed to add VIF\n", macid); + goto error; + } + + ret = qtnf_cmd_get_mac_info(mac); + if (ret) { + pr_err("MAC%u: failed to get MAC info\n", macid); + goto error_del_vif; + } + + /* Use MAC address of the first active radio as a unique device ID */ + if (is_zero_ether_addr(mac->bus->hw_id)) + ether_addr_copy(mac->bus->hw_id, mac->macaddr); + + ret = qtnf_mac_init_bands(mac); + if (ret) { + pr_err("MAC%u: failed to init bands\n", macid); + goto error_del_vif; + } + + ret = qtnf_wiphy_register(&bus->hw_info, mac); + if (ret) { + pr_err("MAC%u: wiphy registration failed\n", macid); + goto error_del_vif; + } + + mac->wiphy_registered = 1; + + rtnl_lock(); + wiphy_lock(priv_to_wiphy(mac)); + ret = qtnf_core_net_attach(mac, vif, "wlan%d", NET_NAME_ENUM); + wiphy_unlock(priv_to_wiphy(mac)); + rtnl_unlock(); + + if (ret) { + pr_err("MAC%u: failed to attach netdev\n", macid); + goto error_del_vif; + } + + if (qtnf_hwcap_is_set(&bus->hw_info, QLINK_HW_CAPAB_HW_BRIDGE)) { + ret = qtnf_cmd_netdev_changeupper(vif, vif->netdev->ifindex); + if (ret) + goto error; + } + + pr_debug("MAC%u initialized\n", macid); + + return 0; + +error_del_vif: + qtnf_cmd_send_del_intf(vif); + vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; +error: + qtnf_core_mac_detach(bus, macid); + return ret; +} + +bool qtnf_netdev_is_qtn(const struct net_device *ndev) +{ + return ndev->netdev_ops == &qtnf_netdev_ops; +} + +static int qtnf_check_br_ports(struct net_device *dev, + struct netdev_nested_priv *priv) +{ + struct net_device *ndev = (struct net_device *)priv->data; + + if (dev != ndev && netdev_port_same_parent_id(dev, ndev)) + return -ENOTSUPP; + + return 0; +} + +static int qtnf_core_netdevice_event(struct notifier_block *nb, + unsigned long event, void *ptr) +{ + struct net_device *ndev = netdev_notifier_info_to_dev(ptr); + const struct netdev_notifier_changeupper_info *info; + struct netdev_nested_priv priv = { + .data = (void *)ndev, + }; + struct net_device *brdev; + struct qtnf_vif *vif; + struct qtnf_bus *bus; + int br_domain; + int ret = 0; + + if (!qtnf_netdev_is_qtn(ndev)) + return NOTIFY_DONE; + + if (!net_eq(dev_net(ndev), &init_net)) + return NOTIFY_OK; + + vif = qtnf_netdev_get_priv(ndev); + bus = vif->mac->bus; + + switch (event) { + case NETDEV_CHANGEUPPER: + info = ptr; + brdev = info->upper_dev; + + if (!netif_is_bridge_master(brdev)) + break; + + pr_debug("[VIF%u.%u] change bridge: %s %s\n", + vif->mac->macid, vif->vifid, netdev_name(brdev), + info->linking ? "add" : "del"); + + if (IS_ENABLED(CONFIG_NET_SWITCHDEV) && + qtnf_hwcap_is_set(&bus->hw_info, + QLINK_HW_CAPAB_HW_BRIDGE)) { + if (info->linking) + br_domain = brdev->ifindex; + else + br_domain = ndev->ifindex; + + ret = qtnf_cmd_netdev_changeupper(vif, br_domain); + } else { + ret = netdev_walk_all_lower_dev(brdev, + qtnf_check_br_ports, + &priv); + } + + break; + default: + break; + } + + return notifier_from_errno(ret); +} + +int qtnf_core_attach(struct qtnf_bus *bus) +{ + unsigned int i; + int ret; + + qtnf_trans_init(bus); + qtnf_bus_data_rx_start(bus); + + bus->workqueue = alloc_ordered_workqueue("QTNF_BUS", 0); + if (!bus->workqueue) { + pr_err("failed to alloc main workqueue\n"); + ret = -ENOMEM; + goto error; + } + + bus->hprio_workqueue = alloc_workqueue("QTNF_HPRI", WQ_HIGHPRI, 0); + if (!bus->hprio_workqueue) { + pr_err("failed to alloc high prio workqueue\n"); + ret = -ENOMEM; + goto error; + } + + INIT_WORK(&bus->event_work, qtnf_event_work_handler); + + ret = qtnf_cmd_send_init_fw(bus); + if (ret) { + pr_err("failed to init FW: %d\n", ret); + goto error; + } + + if (QLINK_VER_MAJOR(bus->hw_info.ql_proto_ver) != + QLINK_PROTO_VER_MAJOR) { + pr_err("qlink driver vs FW version mismatch: %u vs %u\n", + QLINK_PROTO_VER_MAJOR, + QLINK_VER_MAJOR(bus->hw_info.ql_proto_ver)); + ret = -EPROTONOSUPPORT; + goto error; + } + + bus->fw_state = QTNF_FW_STATE_ACTIVE; + ret = qtnf_cmd_get_hw_info(bus); + if (ret) { + pr_err("failed to get HW info: %d\n", ret); + goto error; + } + + if (qtnf_hwcap_is_set(&bus->hw_info, QLINK_HW_CAPAB_HW_BRIDGE) && + bus->bus_ops->data_tx_use_meta_set) + bus->bus_ops->data_tx_use_meta_set(bus, true); + + if (bus->hw_info.num_mac > QTNF_MAX_MAC) { + pr_err("no support for number of MACs=%u\n", + bus->hw_info.num_mac); + ret = -ERANGE; + goto error; + } + + for (i = 0; i < bus->hw_info.num_mac; i++) { + ret = qtnf_core_mac_attach(bus, i); + + if (ret) { + pr_err("MAC%u: attach failed: %d\n", i, ret); + goto error; + } + } + + bus->netdev_nb.notifier_call = qtnf_core_netdevice_event; + ret = register_netdevice_notifier(&bus->netdev_nb); + if (ret) { + pr_err("failed to register netdev notifier: %d\n", ret); + goto error; + } + + bus->fw_state = QTNF_FW_STATE_RUNNING; + return 0; + +error: + qtnf_core_detach(bus); + return ret; +} +EXPORT_SYMBOL_GPL(qtnf_core_attach); + +void qtnf_core_detach(struct qtnf_bus *bus) +{ + unsigned int macid; + + unregister_netdevice_notifier(&bus->netdev_nb); + qtnf_bus_data_rx_stop(bus); + + for (macid = 0; macid < QTNF_MAX_MAC; macid++) + qtnf_core_mac_detach(bus, macid); + + if (qtnf_fw_is_up(bus)) + qtnf_cmd_send_deinit_fw(bus); + + bus->fw_state = QTNF_FW_STATE_DETACHED; + + if (bus->workqueue) { + destroy_workqueue(bus->workqueue); + bus->workqueue = NULL; + } + + if (bus->hprio_workqueue) { + destroy_workqueue(bus->hprio_workqueue); + bus->hprio_workqueue = NULL; + } + + qtnf_trans_free(bus); +} +EXPORT_SYMBOL_GPL(qtnf_core_detach); + +static inline int qtnf_is_frame_meta_magic_valid(struct qtnf_frame_meta_info *m) +{ + return m->magic_s == HBM_FRAME_META_MAGIC_PATTERN_S && + m->magic_e == HBM_FRAME_META_MAGIC_PATTERN_E; +} + +struct net_device *qtnf_classify_skb(struct qtnf_bus *bus, struct sk_buff *skb) +{ + struct qtnf_frame_meta_info *meta; + struct net_device *ndev = NULL; + struct qtnf_wmac *mac; + struct qtnf_vif *vif; + + if (unlikely(bus->fw_state != QTNF_FW_STATE_RUNNING)) + return NULL; + + meta = (struct qtnf_frame_meta_info *) + (skb_tail_pointer(skb) - sizeof(*meta)); + + if (unlikely(!qtnf_is_frame_meta_magic_valid(meta))) { + pr_err_ratelimited("invalid magic 0x%x:0x%x\n", + meta->magic_s, meta->magic_e); + goto out; + } + + if (unlikely(meta->macid >= QTNF_MAX_MAC)) { + pr_err_ratelimited("invalid mac(%u)\n", meta->macid); + goto out; + } + + if (unlikely(meta->ifidx >= QTNF_MAX_INTF)) { + pr_err_ratelimited("invalid vif(%u)\n", meta->ifidx); + goto out; + } + + mac = bus->mac[meta->macid]; + + if (unlikely(!mac)) { + pr_err_ratelimited("mac(%d) does not exist\n", meta->macid); + goto out; + } + + vif = &mac->iflist[meta->ifidx]; + + if (unlikely(vif->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED)) { + pr_err_ratelimited("vif(%u) does not exists\n", meta->ifidx); + goto out; + } + + ndev = vif->netdev; + + if (unlikely(!ndev)) { + pr_err_ratelimited("netdev for wlan%u.%u does not exists\n", + meta->macid, meta->ifidx); + goto out; + } + + __skb_trim(skb, skb->len - sizeof(*meta)); + /* Firmware always handles packets that require flooding */ + qtnfmac_switch_mark_skb_flooded(skb); + +out: + return ndev; +} +EXPORT_SYMBOL_GPL(qtnf_classify_skb); + +void qtnf_wake_all_queues(struct net_device *ndev) +{ + struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev); + struct qtnf_wmac *mac; + struct qtnf_bus *bus; + int macid; + int i; + + if (unlikely(!vif || !vif->mac || !vif->mac->bus)) + return; + + bus = vif->mac->bus; + + for (macid = 0; macid < QTNF_MAX_MAC; macid++) { + if (!(bus->hw_info.mac_bitmap & BIT(macid))) + continue; + + mac = bus->mac[macid]; + for (i = 0; i < QTNF_MAX_INTF; i++) { + vif = &mac->iflist[i]; + if (vif->netdev && netif_queue_stopped(vif->netdev)) + netif_tx_wake_all_queues(vif->netdev); + } + } +} +EXPORT_SYMBOL_GPL(qtnf_wake_all_queues); + +struct dentry *qtnf_get_debugfs_dir(void) +{ + return qtnf_debugfs_dir; +} +EXPORT_SYMBOL_GPL(qtnf_get_debugfs_dir); + +static int __init qtnf_core_register(void) +{ + qtnf_debugfs_dir = debugfs_create_dir(KBUILD_MODNAME, NULL); + + if (IS_ERR(qtnf_debugfs_dir)) + qtnf_debugfs_dir = NULL; + + return 0; +} + +static void __exit qtnf_core_exit(void) +{ + debugfs_remove(qtnf_debugfs_dir); +} + +module_init(qtnf_core_register); +module_exit(qtnf_core_exit); + +MODULE_AUTHOR("Quantenna Communications"); +MODULE_DESCRIPTION("Quantenna 802.11 wireless LAN FullMAC driver."); +MODULE_LICENSE("GPL"); diff --git a/drivers/net/wireless/quantenna/qtnfmac/core.h b/drivers/net/wireless/quantenna/qtnfmac/core.h new file mode 100644 index 000000000..b204a2407 --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/core.h @@ -0,0 +1,160 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */ + +#ifndef _QTN_FMAC_CORE_H_ +#define _QTN_FMAC_CORE_H_ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/sched.h> +#include <linux/semaphore.h> +#include <linux/ip.h> +#include <linux/skbuff.h> +#include <linux/if_arp.h> +#include <linux/etherdevice.h> +#include <net/sock.h> +#include <net/lib80211.h> +#include <net/cfg80211.h> +#include <linux/vmalloc.h> +#include <linux/firmware.h> +#include <linux/ctype.h> +#include <linux/workqueue.h> +#include <linux/slab.h> +#include <linux/platform_device.h> + +#include "qlink.h" +#include "trans.h" +#include "qlink_util.h" + +#undef pr_fmt +#define pr_fmt(fmt) KBUILD_MODNAME ": %s: " fmt, __func__ + +#define QTNF_MAX_VSIE_LEN 255 +#define QTNF_MAX_INTF 8 +#define QTNF_MAX_EVENT_QUEUE_LEN 255 +#define QTNF_SCAN_TIMEOUT_SEC 15 + +#define QTNF_DEF_BSS_PRIORITY 0 +#define QTNF_DEF_WDOG_TIMEOUT 5 +#define QTNF_TX_TIMEOUT_TRSHLD 100 + +extern const struct net_device_ops qtnf_netdev_ops; + +struct qtnf_bus; +struct qtnf_vif; + +struct qtnf_sta_node { + struct list_head list; + u8 mac_addr[ETH_ALEN]; +}; + +struct qtnf_sta_list { + struct list_head head; + atomic_t size; +}; + +struct qtnf_vif { + struct wireless_dev wdev; + u8 bssid[ETH_ALEN]; + u8 mac_addr[ETH_ALEN]; + u8 vifid; + u8 bss_priority; + u8 bss_status; + u16 mgmt_frames_bitmask; + struct net_device *netdev; + struct qtnf_wmac *mac; + + struct work_struct reset_work; + struct work_struct high_pri_tx_work; + struct sk_buff_head high_pri_tx_queue; + struct qtnf_sta_list sta_list; + unsigned long cons_tx_timeout_cnt; + int generation; +}; + +struct qtnf_mac_info { + u8 bands_cap; + u8 num_tx_chain; + u8 num_rx_chain; + u16 max_ap_assoc_sta; + u32 frag_thr; + u32 rts_thr; + u8 lretry_limit; + u8 sretry_limit; + u8 coverage_class; + u8 radar_detect_widths; + u8 max_scan_ssids; + u16 max_acl_mac_addrs; + struct ieee80211_ht_cap ht_cap_mod_mask; + struct ieee80211_vht_cap vht_cap_mod_mask; + struct ieee80211_iface_combination *if_comb; + size_t n_if_comb; + u8 *extended_capabilities; + u8 *extended_capabilities_mask; + u8 extended_capabilities_len; + struct wiphy_wowlan_support *wowlan; +}; + +struct qtnf_wmac { + u8 macid; + u8 wiphy_registered; + u8 macaddr[ETH_ALEN]; + struct qtnf_bus *bus; + struct qtnf_mac_info macinfo; + struct qtnf_vif iflist[QTNF_MAX_INTF]; + struct cfg80211_scan_request *scan_req; + struct mutex mac_lock; /* lock during wmac speicific ops */ + struct delayed_work scan_timeout; + struct ieee80211_regdomain *rd; + struct platform_device *pdev; +}; + +struct qtnf_hw_info { + u32 ql_proto_ver; + u8 num_mac; + u8 mac_bitmap; + u32 fw_ver; + u8 total_tx_chain; + u8 total_rx_chain; + char fw_version[ETHTOOL_FWVERS_LEN]; + u32 hw_version; + u8 hw_capab[QLINK_HW_CAPAB_NUM / BITS_PER_BYTE + 1]; +}; + +struct qtnf_vif *qtnf_mac_get_free_vif(struct qtnf_wmac *mac); +struct qtnf_vif *qtnf_mac_get_base_vif(struct qtnf_wmac *mac); +void qtnf_mac_iface_comb_free(struct qtnf_wmac *mac); +void qtnf_mac_ext_caps_free(struct qtnf_wmac *mac); +bool qtnf_slave_radar_get(void); +bool qtnf_dfs_offload_get(void); +struct wiphy *qtnf_wiphy_allocate(struct qtnf_bus *bus, + struct platform_device *pdev); +int qtnf_core_net_attach(struct qtnf_wmac *mac, struct qtnf_vif *priv, + const char *name, unsigned char name_assign_type); +void qtnf_main_work_queue(struct work_struct *work); +int qtnf_cmd_send_update_phy_params(struct qtnf_wmac *mac, u32 changed); + +struct qtnf_wmac *qtnf_core_get_mac(const struct qtnf_bus *bus, u8 macid); +struct net_device *qtnf_classify_skb(struct qtnf_bus *bus, struct sk_buff *skb); +void qtnf_wake_all_queues(struct net_device *ndev); + +void qtnf_virtual_intf_cleanup(struct net_device *ndev); + +void qtnf_netdev_updown(struct net_device *ndev, bool up); +void qtnf_scan_done(struct qtnf_wmac *mac, bool aborted); +struct dentry *qtnf_get_debugfs_dir(void); +bool qtnf_netdev_is_qtn(const struct net_device *ndev); + +static inline struct qtnf_vif *qtnf_netdev_get_priv(struct net_device *dev) +{ + return *((void **)netdev_priv(dev)); +} + +static inline bool qtnf_hwcap_is_set(const struct qtnf_hw_info *info, + unsigned int bit) +{ + return qtnf_utils_is_bit_set(info->hw_capab, bit, + sizeof(info->hw_capab)); +} + +#endif /* _QTN_FMAC_CORE_H_ */ diff --git a/drivers/net/wireless/quantenna/qtnfmac/debug.c b/drivers/net/wireless/quantenna/qtnfmac/debug.c new file mode 100644 index 000000000..2d3574c1f --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/debug.c @@ -0,0 +1,23 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */ + +#include "debug.h" + +void qtnf_debugfs_init(struct qtnf_bus *bus, const char *name) +{ + struct dentry *parent = qtnf_get_debugfs_dir(); + + bus->dbg_dir = debugfs_create_dir(name, parent); +} + +void qtnf_debugfs_remove(struct qtnf_bus *bus) +{ + debugfs_remove_recursive(bus->dbg_dir); + bus->dbg_dir = NULL; +} + +void qtnf_debugfs_add_entry(struct qtnf_bus *bus, const char *name, + int (*fn)(struct seq_file *seq, void *data)) +{ + debugfs_create_devm_seqfile(bus->dev, name, bus->dbg_dir, fn); +} diff --git a/drivers/net/wireless/quantenna/qtnfmac/debug.h b/drivers/net/wireless/quantenna/qtnfmac/debug.h new file mode 100644 index 000000000..61b45536b --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/debug.h @@ -0,0 +1,37 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */ + +#ifndef _QTN_FMAC_DEBUG_H_ +#define _QTN_FMAC_DEBUG_H_ + +#include <linux/debugfs.h> + +#include "core.h" +#include "bus.h" + +#ifdef CONFIG_DEBUG_FS + +void qtnf_debugfs_init(struct qtnf_bus *bus, const char *name); +void qtnf_debugfs_remove(struct qtnf_bus *bus); +void qtnf_debugfs_add_entry(struct qtnf_bus *bus, const char *name, + int (*fn)(struct seq_file *seq, void *data)); + +#else + +static inline void qtnf_debugfs_init(struct qtnf_bus *bus, const char *name) +{ +} + +static inline void qtnf_debugfs_remove(struct qtnf_bus *bus) +{ +} + +static inline void +qtnf_debugfs_add_entry(struct qtnf_bus *bus, const char *name, + int (*fn)(struct seq_file *seq, void *data)) +{ +} + +#endif /* CONFIG_DEBUG_FS */ + +#endif /* _QTN_FMAC_DEBUG_H_ */ diff --git a/drivers/net/wireless/quantenna/qtnfmac/event.c b/drivers/net/wireless/quantenna/qtnfmac/event.c new file mode 100644 index 000000000..4fafe3701 --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/event.c @@ -0,0 +1,796 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/nospec.h> + +#include "cfg80211.h" +#include "core.h" +#include "qlink.h" +#include "bus.h" +#include "trans.h" +#include "util.h" +#include "event.h" +#include "qlink_util.h" + +static int +qtnf_event_handle_sta_assoc(struct qtnf_wmac *mac, struct qtnf_vif *vif, + const struct qlink_event_sta_assoc *sta_assoc, + u16 len) +{ + const u8 *sta_addr; + u16 frame_control; + struct station_info *sinfo; + size_t payload_len; + u16 tlv_type; + u16 tlv_value_len; + const struct qlink_tlv_hdr *tlv; + int ret = 0; + + if (unlikely(len < sizeof(*sta_assoc))) { + pr_err("VIF%u.%u: payload is too short (%u < %zu)\n", + mac->macid, vif->vifid, len, sizeof(*sta_assoc)); + return -EINVAL; + } + + if (vif->wdev.iftype != NL80211_IFTYPE_AP) { + pr_err("VIF%u.%u: STA_ASSOC event when not in AP mode\n", + mac->macid, vif->vifid); + return -EPROTO; + } + + sinfo = kzalloc(sizeof(*sinfo), GFP_KERNEL); + if (!sinfo) + return -ENOMEM; + + sta_addr = sta_assoc->sta_addr; + frame_control = le16_to_cpu(sta_assoc->frame_control); + + pr_debug("VIF%u.%u: MAC:%pM FC:%x\n", mac->macid, vif->vifid, sta_addr, + frame_control); + + qtnf_sta_list_add(vif, sta_addr); + + sinfo->assoc_req_ies = NULL; + sinfo->assoc_req_ies_len = 0; + sinfo->generation = vif->generation; + + payload_len = len - sizeof(*sta_assoc); + + qlink_for_each_tlv(tlv, sta_assoc->ies, payload_len) { + tlv_type = le16_to_cpu(tlv->type); + tlv_value_len = le16_to_cpu(tlv->len); + + if (tlv_type == QTN_TLV_ID_IE_SET) { + const struct qlink_tlv_ie_set *ie_set; + unsigned int ie_len; + + if (tlv_value_len < + (sizeof(*ie_set) - sizeof(ie_set->hdr))) { + ret = -EINVAL; + goto out; + } + + ie_set = (const struct qlink_tlv_ie_set *)tlv; + ie_len = tlv_value_len - + (sizeof(*ie_set) - sizeof(ie_set->hdr)); + + if (ie_set->type == QLINK_IE_SET_ASSOC_REQ && ie_len) { + sinfo->assoc_req_ies = ie_set->ie_data; + sinfo->assoc_req_ies_len = ie_len; + } + } + } + + if (!qlink_tlv_parsing_ok(tlv, sta_assoc->ies, payload_len)) { + pr_err("Malformed TLV buffer\n"); + ret = -EINVAL; + goto out; + } + + cfg80211_new_sta(vif->netdev, sta_assoc->sta_addr, sinfo, + GFP_KERNEL); + +out: + kfree(sinfo); + return ret; +} + +static int +qtnf_event_handle_sta_deauth(struct qtnf_wmac *mac, struct qtnf_vif *vif, + const struct qlink_event_sta_deauth *sta_deauth, + u16 len) +{ + const u8 *sta_addr; + u16 reason; + + if (unlikely(len < sizeof(*sta_deauth))) { + pr_err("VIF%u.%u: payload is too short (%u < %zu)\n", + mac->macid, vif->vifid, len, + sizeof(struct qlink_event_sta_deauth)); + return -EINVAL; + } + + if (vif->wdev.iftype != NL80211_IFTYPE_AP) { + pr_err("VIF%u.%u: STA_DEAUTH event when not in AP mode\n", + mac->macid, vif->vifid); + return -EPROTO; + } + + sta_addr = sta_deauth->sta_addr; + reason = le16_to_cpu(sta_deauth->reason); + + pr_debug("VIF%u.%u: MAC:%pM reason:%x\n", mac->macid, vif->vifid, + sta_addr, reason); + + if (qtnf_sta_list_del(vif, sta_addr)) + cfg80211_del_sta(vif->netdev, sta_deauth->sta_addr, + GFP_KERNEL); + + return 0; +} + +static int +qtnf_event_handle_bss_join(struct qtnf_vif *vif, + const struct qlink_event_bss_join *join_info, + u16 len) +{ + struct wiphy *wiphy = priv_to_wiphy(vif->mac); + enum ieee80211_statuscode status = le16_to_cpu(join_info->status); + struct cfg80211_chan_def chandef; + struct cfg80211_bss *bss = NULL; + u8 *ie = NULL; + size_t payload_len; + u16 tlv_type; + u16 tlv_value_len; + const struct qlink_tlv_hdr *tlv; + const u8 *rsp_ies = NULL; + size_t rsp_ies_len = 0; + + if (unlikely(len < sizeof(*join_info))) { + pr_err("VIF%u.%u: payload is too short (%u < %zu)\n", + vif->mac->macid, vif->vifid, len, + sizeof(struct qlink_event_bss_join)); + return -EINVAL; + } + + if (vif->wdev.iftype != NL80211_IFTYPE_STATION) { + pr_err("VIF%u.%u: BSS_JOIN event when not in STA mode\n", + vif->mac->macid, vif->vifid); + return -EPROTO; + } + + pr_debug("VIF%u.%u: BSSID:%pM chan:%u status:%u\n", + vif->mac->macid, vif->vifid, join_info->bssid, + le16_to_cpu(join_info->chan.chan.center_freq), status); + + if (status != WLAN_STATUS_SUCCESS) + goto done; + + qlink_chandef_q2cfg(wiphy, &join_info->chan, &chandef); + if (!cfg80211_chandef_valid(&chandef)) { + pr_warn("MAC%u.%u: bad channel freq=%u cf1=%u cf2=%u bw=%u\n", + vif->mac->macid, vif->vifid, + chandef.chan ? chandef.chan->center_freq : 0, + chandef.center_freq1, + chandef.center_freq2, + chandef.width); + status = WLAN_STATUS_UNSPECIFIED_FAILURE; + goto done; + } + + bss = cfg80211_get_bss(wiphy, chandef.chan, join_info->bssid, + NULL, 0, IEEE80211_BSS_TYPE_ESS, + IEEE80211_PRIVACY_ANY); + if (!bss) { + pr_warn("VIF%u.%u: add missing BSS:%pM chan:%u\n", + vif->mac->macid, vif->vifid, + join_info->bssid, chandef.chan->hw_value); + + if (!vif->wdev.u.client.ssid_len) { + pr_warn("VIF%u.%u: SSID unknown for BSS:%pM\n", + vif->mac->macid, vif->vifid, + join_info->bssid); + status = WLAN_STATUS_UNSPECIFIED_FAILURE; + goto done; + } + + ie = kzalloc(2 + vif->wdev.u.client.ssid_len, GFP_KERNEL); + if (!ie) { + pr_warn("VIF%u.%u: IE alloc failed for BSS:%pM\n", + vif->mac->macid, vif->vifid, + join_info->bssid); + status = WLAN_STATUS_UNSPECIFIED_FAILURE; + goto done; + } + + ie[0] = WLAN_EID_SSID; + ie[1] = vif->wdev.u.client.ssid_len; + memcpy(ie + 2, vif->wdev.u.client.ssid, + vif->wdev.u.client.ssid_len); + + bss = cfg80211_inform_bss(wiphy, chandef.chan, + CFG80211_BSS_FTYPE_UNKNOWN, + join_info->bssid, 0, + WLAN_CAPABILITY_ESS, 100, + ie, 2 + vif->wdev.u.client.ssid_len, + 0, GFP_KERNEL); + if (!bss) { + pr_warn("VIF%u.%u: can't connect to unknown BSS: %pM\n", + vif->mac->macid, vif->vifid, + join_info->bssid); + status = WLAN_STATUS_UNSPECIFIED_FAILURE; + goto done; + } + } + + payload_len = len - sizeof(*join_info); + + qlink_for_each_tlv(tlv, join_info->ies, payload_len) { + tlv_type = le16_to_cpu(tlv->type); + tlv_value_len = le16_to_cpu(tlv->len); + + if (tlv_type == QTN_TLV_ID_IE_SET) { + const struct qlink_tlv_ie_set *ie_set; + unsigned int ie_len; + + if (tlv_value_len < + (sizeof(*ie_set) - sizeof(ie_set->hdr))) { + pr_warn("invalid IE_SET TLV\n"); + status = WLAN_STATUS_UNSPECIFIED_FAILURE; + goto done; + } + + ie_set = (const struct qlink_tlv_ie_set *)tlv; + ie_len = tlv_value_len - + (sizeof(*ie_set) - sizeof(ie_set->hdr)); + + switch (ie_set->type) { + case QLINK_IE_SET_ASSOC_RESP: + if (ie_len) { + rsp_ies = ie_set->ie_data; + rsp_ies_len = ie_len; + } + break; + default: + pr_warn("unexpected IE type: %u\n", + ie_set->type); + break; + } + } + } + + if (!qlink_tlv_parsing_ok(tlv, join_info->ies, payload_len)) + pr_warn("Malformed TLV buffer\n"); +done: + cfg80211_connect_result(vif->netdev, join_info->bssid, NULL, 0, rsp_ies, + rsp_ies_len, status, GFP_KERNEL); + if (bss) { + if (!ether_addr_equal(vif->bssid, join_info->bssid)) + ether_addr_copy(vif->bssid, join_info->bssid); + cfg80211_put_bss(wiphy, bss); + } + + if (status == WLAN_STATUS_SUCCESS) + netif_carrier_on(vif->netdev); + + kfree(ie); + return 0; +} + +static int +qtnf_event_handle_bss_leave(struct qtnf_vif *vif, + const struct qlink_event_bss_leave *leave_info, + u16 len) +{ + if (unlikely(len < sizeof(*leave_info))) { + pr_err("VIF%u.%u: payload is too short (%u < %zu)\n", + vif->mac->macid, vif->vifid, len, + sizeof(struct qlink_event_bss_leave)); + return -EINVAL; + } + + if (vif->wdev.iftype != NL80211_IFTYPE_STATION) { + pr_err("VIF%u.%u: BSS_LEAVE event when not in STA mode\n", + vif->mac->macid, vif->vifid); + return -EPROTO; + } + + pr_debug("VIF%u.%u: disconnected\n", vif->mac->macid, vif->vifid); + + cfg80211_disconnected(vif->netdev, le16_to_cpu(leave_info->reason), + NULL, 0, 0, GFP_KERNEL); + netif_carrier_off(vif->netdev); + + return 0; +} + +static int +qtnf_event_handle_mgmt_received(struct qtnf_vif *vif, + const struct qlink_event_rxmgmt *rxmgmt, + u16 len) +{ + const size_t min_len = sizeof(*rxmgmt) + + sizeof(struct ieee80211_hdr_3addr); + const struct ieee80211_hdr_3addr *frame = (void *)rxmgmt->frame_data; + const u16 frame_len = len - sizeof(*rxmgmt); + enum nl80211_rxmgmt_flags flags = 0; + + if (unlikely(len < min_len)) { + pr_err("VIF%u.%u: payload is too short (%u < %zu)\n", + vif->mac->macid, vif->vifid, len, min_len); + return -EINVAL; + } + + if (le32_to_cpu(rxmgmt->flags) & QLINK_RXMGMT_FLAG_ANSWERED) + flags |= NL80211_RXMGMT_FLAG_ANSWERED; + + pr_debug("%s LEN:%u FC:%.4X SA:%pM\n", vif->netdev->name, frame_len, + le16_to_cpu(frame->frame_control), frame->addr2); + + cfg80211_rx_mgmt(&vif->wdev, le32_to_cpu(rxmgmt->freq), rxmgmt->sig_dbm, + rxmgmt->frame_data, frame_len, flags); + + return 0; +} + +static int +qtnf_event_handle_scan_results(struct qtnf_vif *vif, + const struct qlink_event_scan_result *sr, + u16 len) +{ + struct cfg80211_bss *bss; + struct ieee80211_channel *channel; + struct wiphy *wiphy = priv_to_wiphy(vif->mac); + enum cfg80211_bss_frame_type frame_type = CFG80211_BSS_FTYPE_UNKNOWN; + size_t payload_len; + u16 tlv_type; + u16 tlv_value_len; + const struct qlink_tlv_hdr *tlv; + const u8 *ies = NULL; + size_t ies_len = 0; + + if (len < sizeof(*sr)) { + pr_err("VIF%u.%u: payload is too short\n", vif->mac->macid, + vif->vifid); + return -EINVAL; + } + + channel = ieee80211_get_channel(wiphy, le16_to_cpu(sr->freq)); + if (!channel) { + pr_err("VIF%u.%u: channel at %u MHz not found\n", + vif->mac->macid, vif->vifid, le16_to_cpu(sr->freq)); + return -EINVAL; + } + + payload_len = len - sizeof(*sr); + + qlink_for_each_tlv(tlv, sr->payload, payload_len) { + tlv_type = le16_to_cpu(tlv->type); + tlv_value_len = le16_to_cpu(tlv->len); + + if (tlv_type == QTN_TLV_ID_IE_SET) { + const struct qlink_tlv_ie_set *ie_set; + unsigned int ie_len; + + if (tlv_value_len < + (sizeof(*ie_set) - sizeof(ie_set->hdr))) + return -EINVAL; + + ie_set = (const struct qlink_tlv_ie_set *)tlv; + ie_len = tlv_value_len - + (sizeof(*ie_set) - sizeof(ie_set->hdr)); + + switch (ie_set->type) { + case QLINK_IE_SET_BEACON_IES: + frame_type = CFG80211_BSS_FTYPE_BEACON; + break; + case QLINK_IE_SET_PROBE_RESP_IES: + frame_type = CFG80211_BSS_FTYPE_PRESP; + break; + default: + frame_type = CFG80211_BSS_FTYPE_UNKNOWN; + } + + if (ie_len) { + ies = ie_set->ie_data; + ies_len = ie_len; + } + } + } + + if (!qlink_tlv_parsing_ok(tlv, sr->payload, payload_len)) + return -EINVAL; + + bss = cfg80211_inform_bss(wiphy, channel, frame_type, + sr->bssid, get_unaligned_le64(&sr->tsf), + le16_to_cpu(sr->capab), + le16_to_cpu(sr->bintval), ies, ies_len, + DBM_TO_MBM(sr->sig_dbm), GFP_KERNEL); + if (!bss) + return -ENOMEM; + + cfg80211_put_bss(wiphy, bss); + + return 0; +} + +static int +qtnf_event_handle_scan_complete(struct qtnf_wmac *mac, + const struct qlink_event_scan_complete *status, + u16 len) +{ + if (len < sizeof(*status)) { + pr_err("MAC%u: payload is too short\n", mac->macid); + return -EINVAL; + } + + qtnf_scan_done(mac, le32_to_cpu(status->flags) & QLINK_SCAN_ABORTED); + + return 0; +} + +static int +qtnf_event_handle_freq_change(struct qtnf_wmac *mac, + const struct qlink_event_freq_change *data, + u16 len) +{ + struct wiphy *wiphy = priv_to_wiphy(mac); + struct cfg80211_chan_def chandef; + struct qtnf_vif *vif; + int i; + + if (len < sizeof(*data)) { + pr_err("MAC%u: payload is too short\n", mac->macid); + return -EINVAL; + } + + if (!wiphy->registered) + return 0; + + qlink_chandef_q2cfg(wiphy, &data->chan, &chandef); + + if (!cfg80211_chandef_valid(&chandef)) { + pr_err("MAC%u: bad channel freq=%u cf1=%u cf2=%u bw=%u\n", + mac->macid, chandef.chan->center_freq, + chandef.center_freq1, chandef.center_freq2, + chandef.width); + return -EINVAL; + } + + pr_debug("MAC%d: new channel ieee=%u freq1=%u freq2=%u bw=%u\n", + mac->macid, chandef.chan->hw_value, chandef.center_freq1, + chandef.center_freq2, chandef.width); + + for (i = 0; i < QTNF_MAX_INTF; i++) { + vif = &mac->iflist[i]; + + if (vif->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED) + continue; + + if (vif->wdev.iftype == NL80211_IFTYPE_STATION && + !vif->wdev.connected) + continue; + + if (!vif->netdev) + continue; + + mutex_lock(&vif->wdev.mtx); + cfg80211_ch_switch_notify(vif->netdev, &chandef, 0); + mutex_unlock(&vif->wdev.mtx); + } + + return 0; +} + +static int qtnf_event_handle_radar(struct qtnf_vif *vif, + const struct qlink_event_radar *ev, + u16 len) +{ + struct wiphy *wiphy = priv_to_wiphy(vif->mac); + struct cfg80211_chan_def chandef; + + if (len < sizeof(*ev)) { + pr_err("MAC%u: payload is too short\n", vif->mac->macid); + return -EINVAL; + } + + if (!wiphy->registered || !vif->netdev) + return 0; + + qlink_chandef_q2cfg(wiphy, &ev->chan, &chandef); + + if (!cfg80211_chandef_valid(&chandef)) { + pr_err("MAC%u: bad channel f1=%u f2=%u bw=%u\n", + vif->mac->macid, + chandef.center_freq1, chandef.center_freq2, + chandef.width); + return -EINVAL; + } + + pr_info("%s: radar event=%u f1=%u f2=%u bw=%u\n", + vif->netdev->name, ev->event, + chandef.center_freq1, chandef.center_freq2, + chandef.width); + + switch (ev->event) { + case QLINK_RADAR_DETECTED: + cfg80211_radar_event(wiphy, &chandef, GFP_KERNEL); + break; + case QLINK_RADAR_CAC_FINISHED: + if (!vif->wdev.cac_started) + break; + + cfg80211_cac_event(vif->netdev, &chandef, + NL80211_RADAR_CAC_FINISHED, GFP_KERNEL); + break; + case QLINK_RADAR_CAC_ABORTED: + if (!vif->wdev.cac_started) + break; + + cfg80211_cac_event(vif->netdev, &chandef, + NL80211_RADAR_CAC_ABORTED, GFP_KERNEL); + break; + case QLINK_RADAR_CAC_STARTED: + if (vif->wdev.cac_started) + break; + + if (!wiphy_ext_feature_isset(wiphy, + NL80211_EXT_FEATURE_DFS_OFFLOAD)) + break; + + cfg80211_cac_event(vif->netdev, &chandef, + NL80211_RADAR_CAC_STARTED, GFP_KERNEL); + break; + default: + pr_warn("%s: unhandled radar event %u\n", + vif->netdev->name, ev->event); + break; + } + + return 0; +} + +static int +qtnf_event_handle_external_auth(struct qtnf_vif *vif, + const struct qlink_event_external_auth *ev, + u16 len) +{ + struct cfg80211_external_auth_params auth = {0}; + struct wiphy *wiphy = priv_to_wiphy(vif->mac); + int ret; + + if (len < sizeof(*ev)) { + pr_err("MAC%u: payload is too short\n", vif->mac->macid); + return -EINVAL; + } + + if (!wiphy->registered || !vif->netdev) + return 0; + + if (ev->ssid_len) { + int len = clamp_val(ev->ssid_len, 0, IEEE80211_MAX_SSID_LEN); + + memcpy(auth.ssid.ssid, ev->ssid, len); + auth.ssid.ssid_len = len; + } + + auth.key_mgmt_suite = le32_to_cpu(ev->akm_suite); + ether_addr_copy(auth.bssid, ev->bssid); + auth.action = ev->action; + + pr_debug("%s: external SAE processing: bss=%pM action=%u akm=%u\n", + vif->netdev->name, auth.bssid, auth.action, + auth.key_mgmt_suite); + + ret = cfg80211_external_auth_request(vif->netdev, &auth, GFP_KERNEL); + if (ret) + pr_warn("failed to offload external auth request\n"); + + return ret; +} + +static int +qtnf_event_handle_mic_failure(struct qtnf_vif *vif, + const struct qlink_event_mic_failure *mic_ev, + u16 len) +{ + struct wiphy *wiphy = priv_to_wiphy(vif->mac); + u8 pairwise; + + if (len < sizeof(*mic_ev)) { + pr_err("VIF%u.%u: payload is too short (%u < %zu)\n", + vif->mac->macid, vif->vifid, len, + sizeof(struct qlink_event_mic_failure)); + return -EINVAL; + } + + if (!wiphy->registered || !vif->netdev) + return 0; + + if (vif->wdev.iftype != NL80211_IFTYPE_STATION) { + pr_err("VIF%u.%u: MIC_FAILURE event when not in STA mode\n", + vif->mac->macid, vif->vifid); + return -EPROTO; + } + + pairwise = mic_ev->pairwise ? + NL80211_KEYTYPE_PAIRWISE : NL80211_KEYTYPE_GROUP; + + pr_info("%s: MIC error: src=%pM key_index=%u pairwise=%u\n", + vif->netdev->name, mic_ev->src, mic_ev->key_index, pairwise); + + cfg80211_michael_mic_failure(vif->netdev, mic_ev->src, pairwise, + mic_ev->key_index, NULL, GFP_KERNEL); + + return 0; +} + +static int +qtnf_event_handle_update_owe(struct qtnf_vif *vif, + const struct qlink_event_update_owe *owe_ev, + u16 len) +{ + struct wiphy *wiphy = priv_to_wiphy(vif->mac); + struct cfg80211_update_owe_info owe_info = {}; + const u16 ie_len = len - sizeof(*owe_ev); + u8 *ie; + + if (len < sizeof(*owe_ev)) { + pr_err("VIF%u.%u: payload is too short (%u < %zu)\n", + vif->mac->macid, vif->vifid, len, + sizeof(struct qlink_event_update_owe)); + return -EINVAL; + } + + if (!wiphy->registered || !vif->netdev) + return 0; + + if (vif->wdev.iftype != NL80211_IFTYPE_AP) { + pr_err("VIF%u.%u: UPDATE_OWE event when not in AP mode\n", + vif->mac->macid, vif->vifid); + return -EPROTO; + } + + ie = kzalloc(ie_len, GFP_KERNEL); + if (!ie) + return -ENOMEM; + + memcpy(owe_info.peer, owe_ev->peer, ETH_ALEN); + memcpy(ie, owe_ev->ies, ie_len); + owe_info.ie_len = ie_len; + owe_info.ie = ie; + + pr_info("%s: external OWE processing: peer=%pM\n", + vif->netdev->name, owe_ev->peer); + + cfg80211_update_owe_info_event(vif->netdev, &owe_info, GFP_KERNEL); + kfree(ie); + + return 0; +} + +static int qtnf_event_parse(struct qtnf_wmac *mac, + const struct sk_buff *event_skb) +{ + const struct qlink_event *event; + struct qtnf_vif *vif = NULL; + int ret = -1; + u16 event_id; + u16 event_len; + u8 vifid; + + event = (const struct qlink_event *)event_skb->data; + event_id = le16_to_cpu(event->event_id); + event_len = le16_to_cpu(event->mhdr.len); + + if (event->vifid >= QTNF_MAX_INTF) { + pr_err("invalid vif(%u)\n", event->vifid); + return -EINVAL; + } + + vifid = array_index_nospec(event->vifid, QTNF_MAX_INTF); + vif = &mac->iflist[vifid]; + + switch (event_id) { + case QLINK_EVENT_STA_ASSOCIATED: + ret = qtnf_event_handle_sta_assoc(mac, vif, (const void *)event, + event_len); + break; + case QLINK_EVENT_STA_DEAUTH: + ret = qtnf_event_handle_sta_deauth(mac, vif, + (const void *)event, + event_len); + break; + case QLINK_EVENT_MGMT_RECEIVED: + ret = qtnf_event_handle_mgmt_received(vif, (const void *)event, + event_len); + break; + case QLINK_EVENT_SCAN_RESULTS: + ret = qtnf_event_handle_scan_results(vif, (const void *)event, + event_len); + break; + case QLINK_EVENT_SCAN_COMPLETE: + ret = qtnf_event_handle_scan_complete(mac, (const void *)event, + event_len); + break; + case QLINK_EVENT_BSS_JOIN: + ret = qtnf_event_handle_bss_join(vif, (const void *)event, + event_len); + break; + case QLINK_EVENT_BSS_LEAVE: + ret = qtnf_event_handle_bss_leave(vif, (const void *)event, + event_len); + break; + case QLINK_EVENT_FREQ_CHANGE: + ret = qtnf_event_handle_freq_change(mac, (const void *)event, + event_len); + break; + case QLINK_EVENT_RADAR: + ret = qtnf_event_handle_radar(vif, (const void *)event, + event_len); + break; + case QLINK_EVENT_EXTERNAL_AUTH: + ret = qtnf_event_handle_external_auth(vif, (const void *)event, + event_len); + break; + case QLINK_EVENT_MIC_FAILURE: + ret = qtnf_event_handle_mic_failure(vif, (const void *)event, + event_len); + break; + case QLINK_EVENT_UPDATE_OWE: + ret = qtnf_event_handle_update_owe(vif, (const void *)event, + event_len); + break; + default: + pr_warn("unknown event type: %x\n", event_id); + break; + } + + return ret; +} + +static int qtnf_event_process_skb(struct qtnf_bus *bus, + const struct sk_buff *skb) +{ + const struct qlink_event *event; + struct qtnf_wmac *mac; + int res; + + if (unlikely(!skb || skb->len < sizeof(*event))) { + pr_err("invalid event buffer\n"); + return -EINVAL; + } + + event = (struct qlink_event *)skb->data; + + mac = qtnf_core_get_mac(bus, event->macid); + + pr_debug("new event id:%x len:%u mac:%u vif:%u\n", + le16_to_cpu(event->event_id), le16_to_cpu(event->mhdr.len), + event->macid, event->vifid); + + if (unlikely(!mac)) + return -ENXIO; + + rtnl_lock(); + res = qtnf_event_parse(mac, skb); + rtnl_unlock(); + + return res; +} + +void qtnf_event_work_handler(struct work_struct *work) +{ + struct qtnf_bus *bus = container_of(work, struct qtnf_bus, event_work); + struct sk_buff_head *event_queue = &bus->trans.event_queue; + struct sk_buff *current_event_skb = skb_dequeue(event_queue); + + while (current_event_skb) { + qtnf_event_process_skb(bus, current_event_skb); + dev_kfree_skb_any(current_event_skb); + current_event_skb = skb_dequeue(event_queue); + } +} diff --git a/drivers/net/wireless/quantenna/qtnfmac/event.h b/drivers/net/wireless/quantenna/qtnfmac/event.h new file mode 100644 index 000000000..533ad99d0 --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/event.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */ + +#ifndef _QTN_FMAC_EVENT_H_ +#define _QTN_FMAC_EVENT_H_ + +#include <linux/kernel.h> +#include <linux/module.h> + +#include "qlink.h" + +void qtnf_event_work_handler(struct work_struct *work); + +#endif /* _QTN_FMAC_EVENT_H_ */ diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c b/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c new file mode 100644 index 000000000..9ad4c120f --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c @@ -0,0 +1,485 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Copyright (c) 2018 Quantenna Communications, Inc. All rights reserved. */ + +#include <linux/module.h> +#include <linux/printk.h> +#include <linux/pci.h> +#include <linux/spinlock.h> +#include <linux/mutex.h> +#include <linux/netdevice.h> +#include <linux/seq_file.h> +#include <linux/workqueue.h> +#include <linux/completion.h> + +#include "pcie_priv.h" +#include "bus.h" +#include "shm_ipc.h" +#include "core.h" +#include "debug.h" +#include "util.h" +#include "qtn_hw_ids.h" + +#define QTN_SYSCTL_BAR 0 +#define QTN_SHMEM_BAR 2 +#define QTN_DMA_BAR 3 + +#define QTN_PCIE_MAX_FW_BUFSZ (1 * 1024 * 1024) + +static bool use_msi = true; +module_param(use_msi, bool, 0644); +MODULE_PARM_DESC(use_msi, "set 0 to use legacy interrupt"); + +static unsigned int tx_bd_size_param; +module_param(tx_bd_size_param, uint, 0644); +MODULE_PARM_DESC(tx_bd_size_param, "Tx descriptors queue size"); + +static unsigned int rx_bd_size_param; +module_param(rx_bd_size_param, uint, 0644); +MODULE_PARM_DESC(rx_bd_size_param, "Rx descriptors queue size"); + +static u8 flashboot = 1; +module_param(flashboot, byte, 0644); +MODULE_PARM_DESC(flashboot, "set to 0 to use FW binary file on FS"); + +static unsigned int fw_blksize_param = QTN_PCIE_MAX_FW_BUFSZ; +module_param(fw_blksize_param, uint, 0644); +MODULE_PARM_DESC(fw_blksize_param, "firmware loading block size in bytes"); + +#define DRV_NAME "qtnfmac_pcie" + +int qtnf_pcie_control_tx(struct qtnf_bus *bus, struct sk_buff *skb) +{ + struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus); + int ret; + + ret = qtnf_shm_ipc_send(&priv->shm_ipc_ep_in, skb->data, skb->len); + + if (ret == -ETIMEDOUT) { + pr_err("EP firmware is dead\n"); + bus->fw_state = QTNF_FW_STATE_DEAD; + } + + return ret; +} + +int qtnf_pcie_alloc_skb_array(struct qtnf_pcie_bus_priv *priv) +{ + struct sk_buff **vaddr; + int len; + + len = priv->tx_bd_num * sizeof(*priv->tx_skb) + + priv->rx_bd_num * sizeof(*priv->rx_skb); + vaddr = devm_kzalloc(&priv->pdev->dev, len, GFP_KERNEL); + + if (!vaddr) + return -ENOMEM; + + priv->tx_skb = vaddr; + + vaddr += priv->tx_bd_num; + priv->rx_skb = vaddr; + + return 0; +} + +static void qtnf_pcie_bringup_fw_async(struct qtnf_bus *bus) +{ + struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus); + struct pci_dev *pdev = priv->pdev; + + get_device(&pdev->dev); + schedule_work(&bus->fw_work); +} + +static int qtnf_dbg_mps_show(struct seq_file *s, void *data) +{ + struct qtnf_bus *bus = dev_get_drvdata(s->private); + struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus); + + seq_printf(s, "%d\n", pcie_get_mps(priv->pdev)); + + return 0; +} + +static int qtnf_dbg_msi_show(struct seq_file *s, void *data) +{ + struct qtnf_bus *bus = dev_get_drvdata(s->private); + struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus); + + seq_printf(s, "%u\n", priv->msi_enabled); + + return 0; +} + +static int qtnf_dbg_shm_stats(struct seq_file *s, void *data) +{ + struct qtnf_bus *bus = dev_get_drvdata(s->private); + struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus); + + seq_printf(s, "shm_ipc_ep_in.tx_packet_count(%zu)\n", + priv->shm_ipc_ep_in.tx_packet_count); + seq_printf(s, "shm_ipc_ep_in.rx_packet_count(%zu)\n", + priv->shm_ipc_ep_in.rx_packet_count); + seq_printf(s, "shm_ipc_ep_out.tx_packet_count(%zu)\n", + priv->shm_ipc_ep_out.tx_timeout_count); + seq_printf(s, "shm_ipc_ep_out.rx_packet_count(%zu)\n", + priv->shm_ipc_ep_out.rx_packet_count); + + return 0; +} + +int qtnf_pcie_fw_boot_done(struct qtnf_bus *bus) +{ + struct qtnf_pcie_bus_priv *priv = get_bus_priv(bus); + char card_id[64]; + int ret; + + bus->fw_state = QTNF_FW_STATE_BOOT_DONE; + ret = qtnf_core_attach(bus); + if (ret) { + pr_err("failed to attach core\n"); + } else { + snprintf(card_id, sizeof(card_id), "%s:%s", + DRV_NAME, pci_name(priv->pdev)); + qtnf_debugfs_init(bus, card_id); + qtnf_debugfs_add_entry(bus, "mps", qtnf_dbg_mps_show); + qtnf_debugfs_add_entry(bus, "msi_enabled", qtnf_dbg_msi_show); + qtnf_debugfs_add_entry(bus, "shm_stats", qtnf_dbg_shm_stats); + } + + return ret; +} + +static void qtnf_tune_pcie_mps(struct pci_dev *pdev) +{ + struct pci_dev *parent; + int mps_p, mps_o, mps_m, mps; + int ret; + + /* current mps */ + mps_o = pcie_get_mps(pdev); + + /* maximum supported mps */ + mps_m = 128 << pdev->pcie_mpss; + + /* suggested new mps value */ + mps = mps_m; + + if (pdev->bus && pdev->bus->self) { + /* parent (bus) mps */ + parent = pdev->bus->self; + + if (pci_is_pcie(parent)) { + mps_p = pcie_get_mps(parent); + mps = min(mps_m, mps_p); + } + } + + ret = pcie_set_mps(pdev, mps); + if (ret) { + pr_err("failed to set mps to %d, keep using current %d\n", + mps, mps_o); + return; + } + + pr_debug("set mps to %d (was %d, max %d)\n", mps, mps_o, mps_m); +} + +static void qtnf_pcie_init_irq(struct qtnf_pcie_bus_priv *priv, bool use_msi) +{ + struct pci_dev *pdev = priv->pdev; + + /* fall back to legacy INTx interrupts by default */ + priv->msi_enabled = 0; + + /* check if MSI capability is available */ + if (use_msi) { + if (!pci_enable_msi(pdev)) { + pr_debug("enabled MSI interrupt\n"); + priv->msi_enabled = 1; + } else { + pr_warn("failed to enable MSI interrupts"); + } + } + + if (!priv->msi_enabled) { + pr_warn("legacy PCIE interrupts enabled\n"); + pci_intx(pdev, 1); + } +} + +static void __iomem *qtnf_map_bar(struct pci_dev *pdev, u8 index) +{ + void __iomem *vaddr; + dma_addr_t busaddr; + size_t len; + int ret; + + ret = pcim_iomap_regions(pdev, 1 << index, "qtnfmac_pcie"); + if (ret) + return IOMEM_ERR_PTR(ret); + + busaddr = pci_resource_start(pdev, index); + len = pci_resource_len(pdev, index); + vaddr = pcim_iomap_table(pdev)[index]; + if (!vaddr) + return IOMEM_ERR_PTR(-ENOMEM); + + pr_debug("BAR%u vaddr=0x%p busaddr=%pad len=%u\n", + index, vaddr, &busaddr, (int)len); + + return vaddr; +} + +static void qtnf_pcie_control_rx_callback(void *arg, const u8 __iomem *buf, + size_t len) +{ + struct qtnf_pcie_bus_priv *priv = arg; + struct qtnf_bus *bus = pci_get_drvdata(priv->pdev); + struct sk_buff *skb; + + if (unlikely(len == 0)) { + pr_warn("zero length packet received\n"); + return; + } + + skb = __dev_alloc_skb(len, GFP_KERNEL); + + if (unlikely(!skb)) { + pr_err("failed to allocate skb\n"); + return; + } + + memcpy_fromio(skb_put(skb, len), buf, len); + + qtnf_trans_handle_rx_ctl_packet(bus, skb); +} + +void qtnf_pcie_init_shm_ipc(struct qtnf_pcie_bus_priv *priv, + struct qtnf_shm_ipc_region __iomem *ipc_tx_reg, + struct qtnf_shm_ipc_region __iomem *ipc_rx_reg, + const struct qtnf_shm_ipc_int *ipc_int) +{ + const struct qtnf_shm_ipc_rx_callback rx_callback = { + qtnf_pcie_control_rx_callback, priv }; + + qtnf_shm_ipc_init(&priv->shm_ipc_ep_in, QTNF_SHM_IPC_OUTBOUND, + ipc_tx_reg, priv->workqueue, + ipc_int, &rx_callback); + qtnf_shm_ipc_init(&priv->shm_ipc_ep_out, QTNF_SHM_IPC_INBOUND, + ipc_rx_reg, priv->workqueue, + ipc_int, &rx_callback); +} + +static int qtnf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id) +{ + struct qtnf_pcie_bus_priv *pcie_priv; + struct qtnf_bus *bus; + void __iomem *sysctl_bar; + void __iomem *epmem_bar; + void __iomem *dmareg_bar; + unsigned int chipid; + int ret; + + if (!pci_is_pcie(pdev)) { + pr_err("device %s is not PCI Express\n", pci_name(pdev)); + return -EIO; + } + + qtnf_tune_pcie_mps(pdev); + + ret = pcim_enable_device(pdev); + if (ret) { + pr_err("failed to init PCI device %x\n", pdev->device); + return ret; + } + + pci_set_master(pdev); + + sysctl_bar = qtnf_map_bar(pdev, QTN_SYSCTL_BAR); + if (IS_ERR(sysctl_bar)) { + pr_err("failed to map BAR%u\n", QTN_SYSCTL_BAR); + return PTR_ERR(sysctl_bar); + } + + dmareg_bar = qtnf_map_bar(pdev, QTN_DMA_BAR); + if (IS_ERR(dmareg_bar)) { + pr_err("failed to map BAR%u\n", QTN_DMA_BAR); + return PTR_ERR(dmareg_bar); + } + + epmem_bar = qtnf_map_bar(pdev, QTN_SHMEM_BAR); + if (IS_ERR(epmem_bar)) { + pr_err("failed to map BAR%u\n", QTN_SHMEM_BAR); + return PTR_ERR(epmem_bar); + } + + chipid = qtnf_chip_id_get(sysctl_bar); + + pr_info("identified device: %s\n", qtnf_chipid_to_string(chipid)); + + switch (chipid) { + case QTN_CHIP_ID_PEARL: + case QTN_CHIP_ID_PEARL_B: + case QTN_CHIP_ID_PEARL_C: + bus = qtnf_pcie_pearl_alloc(pdev); + break; + case QTN_CHIP_ID_TOPAZ: + bus = qtnf_pcie_topaz_alloc(pdev); + break; + default: + pr_err("unsupported chip ID 0x%x\n", chipid); + return -ENOTSUPP; + } + + if (!bus) + return -ENOMEM; + + pcie_priv = get_bus_priv(bus); + pci_set_drvdata(pdev, bus); + bus->dev = &pdev->dev; + bus->fw_state = QTNF_FW_STATE_DETACHED; + pcie_priv->pdev = pdev; + pcie_priv->tx_stopped = 0; + pcie_priv->flashboot = flashboot; + + if (fw_blksize_param > QTN_PCIE_MAX_FW_BUFSZ) + pcie_priv->fw_blksize = QTN_PCIE_MAX_FW_BUFSZ; + else + pcie_priv->fw_blksize = fw_blksize_param; + + mutex_init(&bus->bus_lock); + spin_lock_init(&pcie_priv->tx_lock); + spin_lock_init(&pcie_priv->tx_reclaim_lock); + + pcie_priv->tx_full_count = 0; + pcie_priv->tx_done_count = 0; + pcie_priv->pcie_irq_count = 0; + pcie_priv->tx_reclaim_done = 0; + pcie_priv->tx_reclaim_req = 0; + + pcie_priv->workqueue = create_singlethread_workqueue("QTNF_PCIE"); + if (!pcie_priv->workqueue) { + pr_err("failed to alloc bus workqueue\n"); + return -ENODEV; + } + + ret = dma_set_mask_and_coherent(&pdev->dev, + pcie_priv->dma_mask_get_cb()); + if (ret) { + pr_err("PCIE DMA coherent mask init failed 0x%llx\n", + pcie_priv->dma_mask_get_cb()); + goto error; + } + + init_dummy_netdev(&bus->mux_dev); + qtnf_pcie_init_irq(pcie_priv, use_msi); + pcie_priv->sysctl_bar = sysctl_bar; + pcie_priv->dmareg_bar = dmareg_bar; + pcie_priv->epmem_bar = epmem_bar; + pci_save_state(pdev); + + ret = pcie_priv->probe_cb(bus, tx_bd_size_param, rx_bd_size_param); + if (ret) + goto error; + + qtnf_pcie_bringup_fw_async(bus); + return 0; + +error: + destroy_workqueue(pcie_priv->workqueue); + pci_set_drvdata(pdev, NULL); + return ret; +} + +static void qtnf_pcie_free_shm_ipc(struct qtnf_pcie_bus_priv *priv) +{ + qtnf_shm_ipc_free(&priv->shm_ipc_ep_in); + qtnf_shm_ipc_free(&priv->shm_ipc_ep_out); +} + +static void qtnf_pcie_remove(struct pci_dev *dev) +{ + struct qtnf_pcie_bus_priv *priv; + struct qtnf_bus *bus; + + bus = pci_get_drvdata(dev); + if (!bus) + return; + + priv = get_bus_priv(bus); + + cancel_work_sync(&bus->fw_work); + + if (qtnf_fw_is_attached(bus)) + qtnf_core_detach(bus); + + netif_napi_del(&bus->mux_napi); + destroy_workqueue(priv->workqueue); + tasklet_kill(&priv->reclaim_tq); + + qtnf_pcie_free_shm_ipc(priv); + qtnf_debugfs_remove(bus); + priv->remove_cb(bus); + pci_set_drvdata(priv->pdev, NULL); +} + +#ifdef CONFIG_PM_SLEEP +static int qtnf_pcie_suspend(struct device *dev) +{ + struct qtnf_pcie_bus_priv *priv; + struct qtnf_bus *bus; + + bus = dev_get_drvdata(dev); + if (!bus) + return -EFAULT; + + priv = get_bus_priv(bus); + return priv->suspend_cb(bus); +} + +static int qtnf_pcie_resume(struct device *dev) +{ + struct qtnf_pcie_bus_priv *priv; + struct qtnf_bus *bus; + + bus = dev_get_drvdata(dev); + if (!bus) + return -EFAULT; + + priv = get_bus_priv(bus); + return priv->resume_cb(bus); +} + +/* Power Management Hooks */ +static SIMPLE_DEV_PM_OPS(qtnf_pcie_pm_ops, qtnf_pcie_suspend, + qtnf_pcie_resume); +#endif + +static const struct pci_device_id qtnf_pcie_devid_table[] = { + { + PCIE_VENDOR_ID_QUANTENNA, PCIE_DEVICE_ID_QSR, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, + }, + { }, +}; + +MODULE_DEVICE_TABLE(pci, qtnf_pcie_devid_table); + +static struct pci_driver qtnf_pcie_drv_data = { + .name = DRV_NAME, + .id_table = qtnf_pcie_devid_table, + .probe = qtnf_pcie_probe, + .remove = qtnf_pcie_remove, +#ifdef CONFIG_PM_SLEEP + .driver = { + .pm = &qtnf_pcie_pm_ops, + }, +#endif +}; + +module_pci_driver(qtnf_pcie_drv_data) + +MODULE_AUTHOR("Quantenna Communications"); +MODULE_DESCRIPTION("Quantenna PCIe bus driver for 802.11 wireless LAN."); +MODULE_LICENSE("GPL"); diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie_priv.h b/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie_priv.h new file mode 100644 index 000000000..2a6a928e1 --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie_priv.h @@ -0,0 +1,90 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* Copyright (c) 2018 Quantenna Communications, Inc. All rights reserved. */ + +#ifndef _QTN_FMAC_PCIE_H_ +#define _QTN_FMAC_PCIE_H_ + +#include <linux/pci.h> +#include <linux/spinlock.h> +#include <linux/io.h> +#include <linux/skbuff.h> +#include <linux/workqueue.h> +#include <linux/interrupt.h> + +#include "shm_ipc.h" +#include "bus.h" + +#define SKB_BUF_SIZE 2048 + +#define QTN_FW_DL_TIMEOUT_MS 3000 +#define QTN_FW_QLINK_TIMEOUT_MS 30000 +#define QTN_EP_RESET_WAIT_MS 1000 + +struct qtnf_pcie_bus_priv { + struct pci_dev *pdev; + + int (*probe_cb)(struct qtnf_bus *bus, unsigned int tx_bd_size, + unsigned int rx_bd_size); + void (*remove_cb)(struct qtnf_bus *bus); + int (*suspend_cb)(struct qtnf_bus *bus); + int (*resume_cb)(struct qtnf_bus *bus); + u64 (*dma_mask_get_cb)(void); + + spinlock_t tx_reclaim_lock; + spinlock_t tx_lock; + + struct workqueue_struct *workqueue; + struct tasklet_struct reclaim_tq; + + void __iomem *sysctl_bar; + void __iomem *epmem_bar; + void __iomem *dmareg_bar; + + struct qtnf_shm_ipc shm_ipc_ep_in; + struct qtnf_shm_ipc shm_ipc_ep_out; + + u16 tx_bd_num; + u16 rx_bd_num; + + struct sk_buff **tx_skb; + struct sk_buff **rx_skb; + + unsigned int fw_blksize; + + u32 rx_bd_w_index; + u32 rx_bd_r_index; + + u32 tx_bd_w_index; + u32 tx_bd_r_index; + + /* diagnostics stats */ + u32 pcie_irq_count; + u32 tx_full_count; + u32 tx_done_count; + u32 tx_reclaim_done; + u32 tx_reclaim_req; + + u8 msi_enabled; + u8 tx_stopped; + bool flashboot; +}; + +int qtnf_pcie_control_tx(struct qtnf_bus *bus, struct sk_buff *skb); +int qtnf_pcie_alloc_skb_array(struct qtnf_pcie_bus_priv *priv); +int qtnf_pcie_fw_boot_done(struct qtnf_bus *bus); +void qtnf_pcie_init_shm_ipc(struct qtnf_pcie_bus_priv *priv, + struct qtnf_shm_ipc_region __iomem *ipc_tx_reg, + struct qtnf_shm_ipc_region __iomem *ipc_rx_reg, + const struct qtnf_shm_ipc_int *ipc_int); +struct qtnf_bus *qtnf_pcie_pearl_alloc(struct pci_dev *pdev); +struct qtnf_bus *qtnf_pcie_topaz_alloc(struct pci_dev *pdev); + +static inline void qtnf_non_posted_write(u32 val, void __iomem *basereg) +{ + writel(val, basereg); + + /* flush posted write */ + readl(basereg); +} + +#endif /* _QTN_FMAC_PCIE_H_ */ diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie.c b/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie.c new file mode 100644 index 000000000..8c23a77d1 --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie.c @@ -0,0 +1,1199 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Copyright (c) 2018 Quantenna Communications */ + +#include <linux/kernel.h> +#include <linux/firmware.h> +#include <linux/pci.h> +#include <linux/vmalloc.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/sched.h> +#include <linux/completion.h> +#include <linux/crc32.h> +#include <linux/spinlock.h> +#include <linux/circ_buf.h> +#include <linux/log2.h> + +#include "pcie_priv.h" +#include "pearl_pcie_regs.h" +#include "pearl_pcie_ipc.h" +#include "qtn_hw_ids.h" +#include "core.h" +#include "bus.h" +#include "shm_ipc.h" +#include "debug.h" + +#define PEARL_TX_BD_SIZE_DEFAULT 32 +#define PEARL_RX_BD_SIZE_DEFAULT 256 + +struct qtnf_pearl_bda { + __le16 bda_len; + __le16 bda_version; + __le32 bda_pci_endian; + __le32 bda_ep_state; + __le32 bda_rc_state; + __le32 bda_dma_mask; + __le32 bda_msi_addr; + __le32 bda_flashsz; + u8 bda_boardname[PCIE_BDA_NAMELEN]; + __le32 bda_rc_msi_enabled; + u8 bda_hhbm_list[PCIE_HHBM_MAX_SIZE]; + __le32 bda_dsbw_start_index; + __le32 bda_dsbw_end_index; + __le32 bda_dsbw_total_bytes; + __le32 bda_rc_tx_bd_base; + __le32 bda_rc_tx_bd_num; + u8 bda_pcie_mac[QTN_ENET_ADDR_LENGTH]; + struct qtnf_shm_ipc_region bda_shm_reg1 __aligned(4096); /* host TX */ + struct qtnf_shm_ipc_region bda_shm_reg2 __aligned(4096); /* host RX */ +} __packed; + +struct qtnf_pearl_tx_bd { + __le32 addr; + __le32 addr_h; + __le32 info; + __le32 info_h; +} __packed; + +struct qtnf_pearl_rx_bd { + __le32 addr; + __le32 addr_h; + __le32 info; + __le32 info_h; + __le32 next_ptr; + __le32 next_ptr_h; +} __packed; + +struct qtnf_pearl_fw_hdr { + u8 boardflg[8]; + __le32 fwsize; + __le32 seqnum; + __le32 type; + __le32 pktlen; + __le32 crc; +} __packed; + +struct qtnf_pcie_pearl_state { + struct qtnf_pcie_bus_priv base; + + /* lock for irq configuration changes */ + spinlock_t irq_lock; + + struct qtnf_pearl_bda __iomem *bda; + void __iomem *pcie_reg_base; + + struct qtnf_pearl_tx_bd *tx_bd_vbase; + dma_addr_t tx_bd_pbase; + + struct qtnf_pearl_rx_bd *rx_bd_vbase; + dma_addr_t rx_bd_pbase; + + dma_addr_t bd_table_paddr; + void *bd_table_vaddr; + u32 bd_table_len; + u32 pcie_irq_mask; + u32 pcie_irq_rx_count; + u32 pcie_irq_tx_count; + u32 pcie_irq_uf_count; +}; + +static inline void qtnf_init_hdp_irqs(struct qtnf_pcie_pearl_state *ps) +{ + unsigned long flags; + + spin_lock_irqsave(&ps->irq_lock, flags); + ps->pcie_irq_mask = (PCIE_HDP_INT_RX_BITS | PCIE_HDP_INT_TX_BITS); + spin_unlock_irqrestore(&ps->irq_lock, flags); +} + +static inline void qtnf_enable_hdp_irqs(struct qtnf_pcie_pearl_state *ps) +{ + unsigned long flags; + + spin_lock_irqsave(&ps->irq_lock, flags); + writel(ps->pcie_irq_mask, PCIE_HDP_INT_EN(ps->pcie_reg_base)); + spin_unlock_irqrestore(&ps->irq_lock, flags); +} + +static inline void qtnf_disable_hdp_irqs(struct qtnf_pcie_pearl_state *ps) +{ + unsigned long flags; + + spin_lock_irqsave(&ps->irq_lock, flags); + writel(0x0, PCIE_HDP_INT_EN(ps->pcie_reg_base)); + spin_unlock_irqrestore(&ps->irq_lock, flags); +} + +static inline void qtnf_en_rxdone_irq(struct qtnf_pcie_pearl_state *ps) +{ + unsigned long flags; + + spin_lock_irqsave(&ps->irq_lock, flags); + ps->pcie_irq_mask |= PCIE_HDP_INT_RX_BITS; + writel(ps->pcie_irq_mask, PCIE_HDP_INT_EN(ps->pcie_reg_base)); + spin_unlock_irqrestore(&ps->irq_lock, flags); +} + +static inline void qtnf_dis_rxdone_irq(struct qtnf_pcie_pearl_state *ps) +{ + unsigned long flags; + + spin_lock_irqsave(&ps->irq_lock, flags); + ps->pcie_irq_mask &= ~PCIE_HDP_INT_RX_BITS; + writel(ps->pcie_irq_mask, PCIE_HDP_INT_EN(ps->pcie_reg_base)); + spin_unlock_irqrestore(&ps->irq_lock, flags); +} + +static inline void qtnf_en_txdone_irq(struct qtnf_pcie_pearl_state *ps) +{ + unsigned long flags; + + spin_lock_irqsave(&ps->irq_lock, flags); + ps->pcie_irq_mask |= PCIE_HDP_INT_TX_BITS; + writel(ps->pcie_irq_mask, PCIE_HDP_INT_EN(ps->pcie_reg_base)); + spin_unlock_irqrestore(&ps->irq_lock, flags); +} + +static inline void qtnf_dis_txdone_irq(struct qtnf_pcie_pearl_state *ps) +{ + unsigned long flags; + + spin_lock_irqsave(&ps->irq_lock, flags); + ps->pcie_irq_mask &= ~PCIE_HDP_INT_TX_BITS; + writel(ps->pcie_irq_mask, PCIE_HDP_INT_EN(ps->pcie_reg_base)); + spin_unlock_irqrestore(&ps->irq_lock, flags); +} + +static void qtnf_deassert_intx(struct qtnf_pcie_pearl_state *ps) +{ + void __iomem *reg = ps->base.sysctl_bar + PEARL_PCIE_CFG0_OFFSET; + u32 cfg; + + cfg = readl(reg); + cfg &= ~PEARL_ASSERT_INTX; + qtnf_non_posted_write(cfg, reg); +} + +static void qtnf_pearl_reset_ep(struct qtnf_pcie_pearl_state *ps) +{ + const u32 data = QTN_PEARL_IPC_IRQ_WORD(QTN_PEARL_LHOST_EP_RESET); + void __iomem *reg = ps->base.sysctl_bar + + QTN_PEARL_SYSCTL_LHOST_IRQ_OFFSET; + + qtnf_non_posted_write(data, reg); + msleep(QTN_EP_RESET_WAIT_MS); + pci_restore_state(ps->base.pdev); +} + +static void qtnf_pcie_pearl_ipc_gen_ep_int(void *arg) +{ + const struct qtnf_pcie_pearl_state *ps = arg; + const u32 data = QTN_PEARL_IPC_IRQ_WORD(QTN_PEARL_LHOST_IPC_IRQ); + void __iomem *reg = ps->base.sysctl_bar + + QTN_PEARL_SYSCTL_LHOST_IRQ_OFFSET; + + qtnf_non_posted_write(data, reg); +} + +static int qtnf_is_state(__le32 __iomem *reg, u32 state) +{ + u32 s = readl(reg); + + return s & state; +} + +static void qtnf_set_state(__le32 __iomem *reg, u32 state) +{ + u32 s = readl(reg); + + qtnf_non_posted_write(state | s, reg); +} + +static void qtnf_clear_state(__le32 __iomem *reg, u32 state) +{ + u32 s = readl(reg); + + qtnf_non_posted_write(s & ~state, reg); +} + +static int qtnf_poll_state(__le32 __iomem *reg, u32 state, u32 delay_in_ms) +{ + u32 timeout = 0; + + while ((qtnf_is_state(reg, state) == 0)) { + usleep_range(1000, 1200); + if (++timeout > delay_in_ms) + return -1; + } + + return 0; +} + +static int pearl_alloc_bd_table(struct qtnf_pcie_pearl_state *ps) +{ + struct qtnf_pcie_bus_priv *priv = &ps->base; + dma_addr_t paddr; + void *vaddr; + int len; + + len = priv->tx_bd_num * sizeof(struct qtnf_pearl_tx_bd) + + priv->rx_bd_num * sizeof(struct qtnf_pearl_rx_bd); + + vaddr = dmam_alloc_coherent(&priv->pdev->dev, len, &paddr, GFP_KERNEL); + if (!vaddr) + return -ENOMEM; + + /* tx bd */ + + ps->bd_table_vaddr = vaddr; + ps->bd_table_paddr = paddr; + ps->bd_table_len = len; + + ps->tx_bd_vbase = vaddr; + ps->tx_bd_pbase = paddr; + + pr_debug("TX descriptor table: vaddr=0x%p paddr=%pad\n", vaddr, &paddr); + + priv->tx_bd_r_index = 0; + priv->tx_bd_w_index = 0; + + /* rx bd */ + + vaddr = ((struct qtnf_pearl_tx_bd *)vaddr) + priv->tx_bd_num; + paddr += priv->tx_bd_num * sizeof(struct qtnf_pearl_tx_bd); + + ps->rx_bd_vbase = vaddr; + ps->rx_bd_pbase = paddr; + +#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT + writel(QTN_HOST_HI32(paddr), + PCIE_HDP_TX_HOST_Q_BASE_H(ps->pcie_reg_base)); +#endif + writel(QTN_HOST_LO32(paddr), + PCIE_HDP_TX_HOST_Q_BASE_L(ps->pcie_reg_base)); + writel(priv->rx_bd_num | (sizeof(struct qtnf_pearl_rx_bd)) << 16, + PCIE_HDP_TX_HOST_Q_SZ_CTRL(ps->pcie_reg_base)); + + pr_debug("RX descriptor table: vaddr=0x%p paddr=%pad\n", vaddr, &paddr); + + return 0; +} + +static int pearl_skb2rbd_attach(struct qtnf_pcie_pearl_state *ps, u16 index) +{ + struct qtnf_pcie_bus_priv *priv = &ps->base; + struct qtnf_pearl_rx_bd *rxbd; + struct sk_buff *skb; + dma_addr_t paddr; + + skb = netdev_alloc_skb_ip_align(NULL, SKB_BUF_SIZE); + if (!skb) { + priv->rx_skb[index] = NULL; + return -ENOMEM; + } + + priv->rx_skb[index] = skb; + rxbd = &ps->rx_bd_vbase[index]; + + paddr = dma_map_single(&priv->pdev->dev, skb->data, SKB_BUF_SIZE, + DMA_FROM_DEVICE); + if (dma_mapping_error(&priv->pdev->dev, paddr)) { + pr_err("skb DMA mapping error: %pad\n", &paddr); + return -ENOMEM; + } + + /* keep rx skb paddrs in rx buffer descriptors for cleanup purposes */ + rxbd->addr = cpu_to_le32(QTN_HOST_LO32(paddr)); + rxbd->addr_h = cpu_to_le32(QTN_HOST_HI32(paddr)); + rxbd->info = 0x0; + + priv->rx_bd_w_index = index; + + /* sync up all descriptor updates */ + wmb(); + +#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT + writel(QTN_HOST_HI32(paddr), + PCIE_HDP_HHBM_BUF_PTR_H(ps->pcie_reg_base)); +#endif + writel(QTN_HOST_LO32(paddr), + PCIE_HDP_HHBM_BUF_PTR(ps->pcie_reg_base)); + + writel(index, PCIE_HDP_TX_HOST_Q_WR_PTR(ps->pcie_reg_base)); + return 0; +} + +static int pearl_alloc_rx_buffers(struct qtnf_pcie_pearl_state *ps) +{ + u16 i; + int ret = 0; + + memset(ps->rx_bd_vbase, 0x0, + ps->base.rx_bd_num * sizeof(struct qtnf_pearl_rx_bd)); + + for (i = 0; i < ps->base.rx_bd_num; i++) { + ret = pearl_skb2rbd_attach(ps, i); + if (ret) + break; + } + + return ret; +} + +/* all rx/tx activity should have ceased before calling this function */ +static void qtnf_pearl_free_xfer_buffers(struct qtnf_pcie_pearl_state *ps) +{ + struct qtnf_pcie_bus_priv *priv = &ps->base; + struct qtnf_pearl_tx_bd *txbd; + struct qtnf_pearl_rx_bd *rxbd; + struct sk_buff *skb; + dma_addr_t paddr; + int i; + + /* free rx buffers */ + for (i = 0; i < priv->rx_bd_num; i++) { + if (priv->rx_skb && priv->rx_skb[i]) { + rxbd = &ps->rx_bd_vbase[i]; + skb = priv->rx_skb[i]; + paddr = QTN_HOST_ADDR(le32_to_cpu(rxbd->addr_h), + le32_to_cpu(rxbd->addr)); + dma_unmap_single(&priv->pdev->dev, paddr, + SKB_BUF_SIZE, DMA_FROM_DEVICE); + dev_kfree_skb_any(skb); + priv->rx_skb[i] = NULL; + } + } + + /* free tx buffers */ + for (i = 0; i < priv->tx_bd_num; i++) { + if (priv->tx_skb && priv->tx_skb[i]) { + txbd = &ps->tx_bd_vbase[i]; + skb = priv->tx_skb[i]; + paddr = QTN_HOST_ADDR(le32_to_cpu(txbd->addr_h), + le32_to_cpu(txbd->addr)); + dma_unmap_single(&priv->pdev->dev, paddr, skb->len, + DMA_TO_DEVICE); + dev_kfree_skb_any(skb); + priv->tx_skb[i] = NULL; + } + } +} + +static int pearl_hhbm_init(struct qtnf_pcie_pearl_state *ps) +{ + u32 val; + + val = readl(PCIE_HHBM_CONFIG(ps->pcie_reg_base)); + val |= HHBM_CONFIG_SOFT_RESET; + writel(val, PCIE_HHBM_CONFIG(ps->pcie_reg_base)); + usleep_range(50, 100); + val &= ~HHBM_CONFIG_SOFT_RESET; +#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT + val |= HHBM_64BIT; +#endif + writel(val, PCIE_HHBM_CONFIG(ps->pcie_reg_base)); + writel(ps->base.rx_bd_num, PCIE_HHBM_Q_LIMIT_REG(ps->pcie_reg_base)); + + return 0; +} + +static int qtnf_pcie_pearl_init_xfer(struct qtnf_pcie_pearl_state *ps, + unsigned int tx_bd_size, + unsigned int rx_bd_size) +{ + struct qtnf_pcie_bus_priv *priv = &ps->base; + int ret; + u32 val; + + if (tx_bd_size == 0) + tx_bd_size = PEARL_TX_BD_SIZE_DEFAULT; + + val = tx_bd_size * sizeof(struct qtnf_pearl_tx_bd); + + if (!is_power_of_2(tx_bd_size) || val > PCIE_HHBM_MAX_SIZE) { + pr_warn("invalid tx_bd_size value %u, use default %u\n", + tx_bd_size, PEARL_TX_BD_SIZE_DEFAULT); + priv->tx_bd_num = PEARL_TX_BD_SIZE_DEFAULT; + } else { + priv->tx_bd_num = tx_bd_size; + } + + if (rx_bd_size == 0) + rx_bd_size = PEARL_RX_BD_SIZE_DEFAULT; + + val = rx_bd_size * sizeof(dma_addr_t); + + if (!is_power_of_2(rx_bd_size) || val > PCIE_HHBM_MAX_SIZE) { + pr_warn("invalid rx_bd_size value %u, use default %u\n", + rx_bd_size, PEARL_RX_BD_SIZE_DEFAULT); + priv->rx_bd_num = PEARL_RX_BD_SIZE_DEFAULT; + } else { + priv->rx_bd_num = rx_bd_size; + } + + priv->rx_bd_w_index = 0; + priv->rx_bd_r_index = 0; + + ret = pearl_hhbm_init(ps); + if (ret) { + pr_err("failed to init h/w queues\n"); + return ret; + } + + ret = qtnf_pcie_alloc_skb_array(priv); + if (ret) { + pr_err("failed to allocate skb array\n"); + return ret; + } + + ret = pearl_alloc_bd_table(ps); + if (ret) { + pr_err("failed to allocate bd table\n"); + return ret; + } + + ret = pearl_alloc_rx_buffers(ps); + if (ret) { + pr_err("failed to allocate rx buffers\n"); + return ret; + } + + return ret; +} + +static void qtnf_pearl_data_tx_reclaim(struct qtnf_pcie_pearl_state *ps) +{ + struct qtnf_pcie_bus_priv *priv = &ps->base; + struct qtnf_pearl_tx_bd *txbd; + struct sk_buff *skb; + unsigned long flags; + dma_addr_t paddr; + u32 tx_done_index; + int count = 0; + int i; + + spin_lock_irqsave(&priv->tx_reclaim_lock, flags); + + tx_done_index = readl(PCIE_HDP_RX0DMA_CNT(ps->pcie_reg_base)) + & (priv->tx_bd_num - 1); + + i = priv->tx_bd_r_index; + + while (CIRC_CNT(tx_done_index, i, priv->tx_bd_num)) { + skb = priv->tx_skb[i]; + if (likely(skb)) { + txbd = &ps->tx_bd_vbase[i]; + paddr = QTN_HOST_ADDR(le32_to_cpu(txbd->addr_h), + le32_to_cpu(txbd->addr)); + dma_unmap_single(&priv->pdev->dev, paddr, skb->len, + DMA_TO_DEVICE); + + if (skb->dev) { + dev_sw_netstats_tx_add(skb->dev, 1, skb->len); + if (unlikely(priv->tx_stopped)) { + qtnf_wake_all_queues(skb->dev); + priv->tx_stopped = 0; + } + } + + dev_kfree_skb_any(skb); + } + + priv->tx_skb[i] = NULL; + count++; + + if (++i >= priv->tx_bd_num) + i = 0; + } + + priv->tx_reclaim_done += count; + priv->tx_reclaim_req++; + priv->tx_bd_r_index = i; + + spin_unlock_irqrestore(&priv->tx_reclaim_lock, flags); +} + +static int qtnf_tx_queue_ready(struct qtnf_pcie_pearl_state *ps) +{ + struct qtnf_pcie_bus_priv *priv = &ps->base; + + if (!CIRC_SPACE(priv->tx_bd_w_index, priv->tx_bd_r_index, + priv->tx_bd_num)) { + qtnf_pearl_data_tx_reclaim(ps); + + if (!CIRC_SPACE(priv->tx_bd_w_index, priv->tx_bd_r_index, + priv->tx_bd_num)) { + pr_warn_ratelimited("reclaim full Tx queue\n"); + priv->tx_full_count++; + return 0; + } + } + + return 1; +} + +static int qtnf_pcie_skb_send(struct qtnf_bus *bus, struct sk_buff *skb) +{ + struct qtnf_pcie_pearl_state *ps = get_bus_priv(bus); + struct qtnf_pcie_bus_priv *priv = &ps->base; + dma_addr_t txbd_paddr, skb_paddr; + struct qtnf_pearl_tx_bd *txbd; + unsigned long flags; + int len, i; + u32 info; + int ret = 0; + + spin_lock_irqsave(&priv->tx_lock, flags); + + if (!qtnf_tx_queue_ready(ps)) { + if (skb->dev) { + netif_tx_stop_all_queues(skb->dev); + priv->tx_stopped = 1; + } + + spin_unlock_irqrestore(&priv->tx_lock, flags); + return NETDEV_TX_BUSY; + } + + i = priv->tx_bd_w_index; + priv->tx_skb[i] = skb; + len = skb->len; + + skb_paddr = dma_map_single(&priv->pdev->dev, skb->data, skb->len, + DMA_TO_DEVICE); + if (dma_mapping_error(&priv->pdev->dev, skb_paddr)) { + pr_err("skb DMA mapping error: %pad\n", &skb_paddr); + ret = -ENOMEM; + goto tx_done; + } + + txbd = &ps->tx_bd_vbase[i]; + txbd->addr = cpu_to_le32(QTN_HOST_LO32(skb_paddr)); + txbd->addr_h = cpu_to_le32(QTN_HOST_HI32(skb_paddr)); + + info = (len & QTN_PCIE_TX_DESC_LEN_MASK) << QTN_PCIE_TX_DESC_LEN_SHIFT; + txbd->info = cpu_to_le32(info); + + /* sync up all descriptor updates before passing them to EP */ + dma_wmb(); + + /* write new TX descriptor to PCIE_RX_FIFO on EP */ + txbd_paddr = ps->tx_bd_pbase + i * sizeof(struct qtnf_pearl_tx_bd); + +#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT + writel(QTN_HOST_HI32(txbd_paddr), + PCIE_HDP_HOST_WR_DESC0_H(ps->pcie_reg_base)); +#endif + writel(QTN_HOST_LO32(txbd_paddr), + PCIE_HDP_HOST_WR_DESC0(ps->pcie_reg_base)); + + if (++i >= priv->tx_bd_num) + i = 0; + + priv->tx_bd_w_index = i; + +tx_done: + if (ret) { + pr_err_ratelimited("drop skb\n"); + if (skb->dev) + skb->dev->stats.tx_dropped++; + dev_kfree_skb_any(skb); + } + + priv->tx_done_count++; + spin_unlock_irqrestore(&priv->tx_lock, flags); + + qtnf_pearl_data_tx_reclaim(ps); + + return NETDEV_TX_OK; +} + +static int qtnf_pcie_data_tx(struct qtnf_bus *bus, struct sk_buff *skb, + unsigned int macid, unsigned int vifid) +{ + return qtnf_pcie_skb_send(bus, skb); +} + +static int qtnf_pcie_data_tx_meta(struct qtnf_bus *bus, struct sk_buff *skb, + unsigned int macid, unsigned int vifid) +{ + struct qtnf_frame_meta_info *meta; + int tail_need = sizeof(*meta) - skb_tailroom(skb); + int ret; + + if (tail_need > 0 && pskb_expand_head(skb, 0, tail_need, GFP_ATOMIC)) { + skb->dev->stats.tx_dropped++; + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; + } + + meta = skb_put(skb, sizeof(*meta)); + meta->magic_s = HBM_FRAME_META_MAGIC_PATTERN_S; + meta->magic_e = HBM_FRAME_META_MAGIC_PATTERN_E; + meta->macid = macid; + meta->ifidx = vifid; + + ret = qtnf_pcie_skb_send(bus, skb); + if (unlikely(ret == NETDEV_TX_BUSY)) + __skb_trim(skb, skb->len - sizeof(*meta)); + + return ret; +} + +static irqreturn_t qtnf_pcie_pearl_interrupt(int irq, void *data) +{ + struct qtnf_bus *bus = (struct qtnf_bus *)data; + struct qtnf_pcie_pearl_state *ps = get_bus_priv(bus); + struct qtnf_pcie_bus_priv *priv = &ps->base; + u32 status; + + priv->pcie_irq_count++; + status = readl(PCIE_HDP_INT_STATUS(ps->pcie_reg_base)); + + qtnf_shm_ipc_irq_handler(&priv->shm_ipc_ep_in); + qtnf_shm_ipc_irq_handler(&priv->shm_ipc_ep_out); + + if (!(status & ps->pcie_irq_mask)) + goto irq_done; + + if (status & PCIE_HDP_INT_RX_BITS) + ps->pcie_irq_rx_count++; + + if (status & PCIE_HDP_INT_TX_BITS) + ps->pcie_irq_tx_count++; + + if (status & PCIE_HDP_INT_HHBM_UF) + ps->pcie_irq_uf_count++; + + if (status & PCIE_HDP_INT_RX_BITS) { + qtnf_dis_rxdone_irq(ps); + napi_schedule(&bus->mux_napi); + } + + if (status & PCIE_HDP_INT_TX_BITS) { + qtnf_dis_txdone_irq(ps); + tasklet_hi_schedule(&priv->reclaim_tq); + } + +irq_done: + /* H/W workaround: clean all bits, not only enabled */ + qtnf_non_posted_write(~0U, PCIE_HDP_INT_STATUS(ps->pcie_reg_base)); + + if (!priv->msi_enabled) + qtnf_deassert_intx(ps); + + return IRQ_HANDLED; +} + +static int qtnf_rx_data_ready(struct qtnf_pcie_pearl_state *ps) +{ + u16 index = ps->base.rx_bd_r_index; + struct qtnf_pearl_rx_bd *rxbd; + u32 descw; + + rxbd = &ps->rx_bd_vbase[index]; + descw = le32_to_cpu(rxbd->info); + + if (descw & QTN_TXDONE_MASK) + return 1; + + return 0; +} + +static int qtnf_pcie_pearl_rx_poll(struct napi_struct *napi, int budget) +{ + struct qtnf_bus *bus = container_of(napi, struct qtnf_bus, mux_napi); + struct qtnf_pcie_pearl_state *ps = get_bus_priv(bus); + struct qtnf_pcie_bus_priv *priv = &ps->base; + struct net_device *ndev = NULL; + struct sk_buff *skb = NULL; + int processed = 0; + struct qtnf_pearl_rx_bd *rxbd; + dma_addr_t skb_paddr; + int consume; + u32 descw; + u32 psize; + u16 r_idx; + u16 w_idx; + int ret; + + while (processed < budget) { + if (!qtnf_rx_data_ready(ps)) + goto rx_out; + + r_idx = priv->rx_bd_r_index; + rxbd = &ps->rx_bd_vbase[r_idx]; + descw = le32_to_cpu(rxbd->info); + + skb = priv->rx_skb[r_idx]; + psize = QTN_GET_LEN(descw); + consume = 1; + + if (!(descw & QTN_TXDONE_MASK)) { + pr_warn("skip invalid rxbd[%d]\n", r_idx); + consume = 0; + } + + if (!skb) { + pr_warn("skip missing rx_skb[%d]\n", r_idx); + consume = 0; + } + + if (skb && (skb_tailroom(skb) < psize)) { + pr_err("skip packet with invalid length: %u > %u\n", + psize, skb_tailroom(skb)); + consume = 0; + } + + if (skb) { + skb_paddr = QTN_HOST_ADDR(le32_to_cpu(rxbd->addr_h), + le32_to_cpu(rxbd->addr)); + dma_unmap_single(&priv->pdev->dev, skb_paddr, + SKB_BUF_SIZE, DMA_FROM_DEVICE); + } + + if (consume) { + skb_put(skb, psize); + ndev = qtnf_classify_skb(bus, skb); + if (likely(ndev)) { + dev_sw_netstats_rx_add(ndev, skb->len); + skb->protocol = eth_type_trans(skb, ndev); + napi_gro_receive(napi, skb); + } else { + pr_debug("drop untagged skb\n"); + bus->mux_dev.stats.rx_dropped++; + dev_kfree_skb_any(skb); + } + } else { + if (skb) { + bus->mux_dev.stats.rx_dropped++; + dev_kfree_skb_any(skb); + } + } + + priv->rx_skb[r_idx] = NULL; + if (++r_idx >= priv->rx_bd_num) + r_idx = 0; + + priv->rx_bd_r_index = r_idx; + + /* repalce processed buffer by a new one */ + w_idx = priv->rx_bd_w_index; + while (CIRC_SPACE(priv->rx_bd_w_index, priv->rx_bd_r_index, + priv->rx_bd_num) > 0) { + if (++w_idx >= priv->rx_bd_num) + w_idx = 0; + + ret = pearl_skb2rbd_attach(ps, w_idx); + if (ret) { + pr_err("failed to allocate new rx_skb[%d]\n", + w_idx); + break; + } + } + + processed++; + } + +rx_out: + if (processed < budget) { + napi_complete(napi); + qtnf_en_rxdone_irq(ps); + } + + return processed; +} + +static void +qtnf_pcie_data_tx_timeout(struct qtnf_bus *bus, struct net_device *ndev) +{ + struct qtnf_pcie_pearl_state *ps = (void *)get_bus_priv(bus); + + tasklet_hi_schedule(&ps->base.reclaim_tq); +} + +static void qtnf_pcie_data_rx_start(struct qtnf_bus *bus) +{ + struct qtnf_pcie_pearl_state *ps = (void *)get_bus_priv(bus); + + qtnf_enable_hdp_irqs(ps); + napi_enable(&bus->mux_napi); +} + +static void qtnf_pcie_data_rx_stop(struct qtnf_bus *bus) +{ + struct qtnf_pcie_pearl_state *ps = (void *)get_bus_priv(bus); + + napi_disable(&bus->mux_napi); + qtnf_disable_hdp_irqs(ps); +} + +static void qtnf_pearl_tx_use_meta_info_set(struct qtnf_bus *bus, bool use_meta) +{ + if (use_meta) + bus->bus_ops->data_tx = qtnf_pcie_data_tx_meta; + else + bus->bus_ops->data_tx = qtnf_pcie_data_tx; +} + +static struct qtnf_bus_ops qtnf_pcie_pearl_bus_ops = { + /* control path methods */ + .control_tx = qtnf_pcie_control_tx, + + /* data path methods */ + .data_tx = qtnf_pcie_data_tx, + .data_tx_timeout = qtnf_pcie_data_tx_timeout, + .data_tx_use_meta_set = qtnf_pearl_tx_use_meta_info_set, + .data_rx_start = qtnf_pcie_data_rx_start, + .data_rx_stop = qtnf_pcie_data_rx_stop, +}; + +static int qtnf_dbg_irq_stats(struct seq_file *s, void *data) +{ + struct qtnf_bus *bus = dev_get_drvdata(s->private); + struct qtnf_pcie_pearl_state *ps = get_bus_priv(bus); + u32 reg = readl(PCIE_HDP_INT_EN(ps->pcie_reg_base)); + u32 status; + + seq_printf(s, "pcie_irq_count(%u)\n", ps->base.pcie_irq_count); + seq_printf(s, "pcie_irq_tx_count(%u)\n", ps->pcie_irq_tx_count); + status = reg & PCIE_HDP_INT_TX_BITS; + seq_printf(s, "pcie_irq_tx_status(%s)\n", + (status == PCIE_HDP_INT_TX_BITS) ? "EN" : "DIS"); + seq_printf(s, "pcie_irq_rx_count(%u)\n", ps->pcie_irq_rx_count); + status = reg & PCIE_HDP_INT_RX_BITS; + seq_printf(s, "pcie_irq_rx_status(%s)\n", + (status == PCIE_HDP_INT_RX_BITS) ? "EN" : "DIS"); + seq_printf(s, "pcie_irq_uf_count(%u)\n", ps->pcie_irq_uf_count); + status = reg & PCIE_HDP_INT_HHBM_UF; + seq_printf(s, "pcie_irq_hhbm_uf_status(%s)\n", + (status == PCIE_HDP_INT_HHBM_UF) ? "EN" : "DIS"); + + return 0; +} + +static int qtnf_dbg_hdp_stats(struct seq_file *s, void *data) +{ + struct qtnf_bus *bus = dev_get_drvdata(s->private); + struct qtnf_pcie_pearl_state *ps = get_bus_priv(bus); + struct qtnf_pcie_bus_priv *priv = &ps->base; + + seq_printf(s, "tx_full_count(%u)\n", priv->tx_full_count); + seq_printf(s, "tx_done_count(%u)\n", priv->tx_done_count); + seq_printf(s, "tx_reclaim_done(%u)\n", priv->tx_reclaim_done); + seq_printf(s, "tx_reclaim_req(%u)\n", priv->tx_reclaim_req); + + seq_printf(s, "tx_bd_r_index(%u)\n", priv->tx_bd_r_index); + seq_printf(s, "tx_bd_p_index(%u)\n", + readl(PCIE_HDP_RX0DMA_CNT(ps->pcie_reg_base)) + & (priv->tx_bd_num - 1)); + seq_printf(s, "tx_bd_w_index(%u)\n", priv->tx_bd_w_index); + seq_printf(s, "tx queue len(%u)\n", + CIRC_CNT(priv->tx_bd_w_index, priv->tx_bd_r_index, + priv->tx_bd_num)); + + seq_printf(s, "rx_bd_r_index(%u)\n", priv->rx_bd_r_index); + seq_printf(s, "rx_bd_p_index(%u)\n", + readl(PCIE_HDP_TX0DMA_CNT(ps->pcie_reg_base)) + & (priv->rx_bd_num - 1)); + seq_printf(s, "rx_bd_w_index(%u)\n", priv->rx_bd_w_index); + seq_printf(s, "rx alloc queue len(%u)\n", + CIRC_SPACE(priv->rx_bd_w_index, priv->rx_bd_r_index, + priv->rx_bd_num)); + + return 0; +} + +static int qtnf_ep_fw_send(struct pci_dev *pdev, uint32_t size, + int blk, const u8 *pblk, const u8 *fw) +{ + struct qtnf_bus *bus = pci_get_drvdata(pdev); + + struct qtnf_pearl_fw_hdr *hdr; + u8 *pdata; + + int hds = sizeof(*hdr); + struct sk_buff *skb = NULL; + int len = 0; + int ret; + + skb = __dev_alloc_skb(QTN_PCIE_FW_BUFSZ, GFP_KERNEL); + if (!skb) + return -ENOMEM; + + skb->len = QTN_PCIE_FW_BUFSZ; + skb->dev = NULL; + + hdr = (struct qtnf_pearl_fw_hdr *)skb->data; + memcpy(hdr->boardflg, QTN_PCIE_BOARDFLG, strlen(QTN_PCIE_BOARDFLG)); + hdr->fwsize = cpu_to_le32(size); + hdr->seqnum = cpu_to_le32(blk); + + if (blk) + hdr->type = cpu_to_le32(QTN_FW_DSUB); + else + hdr->type = cpu_to_le32(QTN_FW_DBEGIN); + + pdata = skb->data + hds; + + len = QTN_PCIE_FW_BUFSZ - hds; + if (pblk >= (fw + size - len)) { + len = fw + size - pblk; + hdr->type = cpu_to_le32(QTN_FW_DEND); + } + + hdr->pktlen = cpu_to_le32(len); + memcpy(pdata, pblk, len); + hdr->crc = cpu_to_le32(~crc32(0, pdata, len)); + + ret = qtnf_pcie_skb_send(bus, skb); + + return (ret == NETDEV_TX_OK) ? len : 0; +} + +static int +qtnf_ep_fw_load(struct qtnf_pcie_pearl_state *ps, const u8 *fw, u32 fw_size) +{ + int blk_size = QTN_PCIE_FW_BUFSZ - sizeof(struct qtnf_pearl_fw_hdr); + int blk_count = fw_size / blk_size + ((fw_size % blk_size) ? 1 : 0); + const u8 *pblk = fw; + int threshold = 0; + int blk = 0; + int len; + + pr_debug("FW upload started: fw_addr=0x%p size=%d\n", fw, fw_size); + + while (blk < blk_count) { + if (++threshold > 10000) { + pr_err("FW upload failed: too many retries\n"); + return -ETIMEDOUT; + } + + len = qtnf_ep_fw_send(ps->base.pdev, fw_size, blk, pblk, fw); + if (len <= 0) + continue; + + if (!((blk + 1) & QTN_PCIE_FW_DLMASK) || + (blk == (blk_count - 1))) { + qtnf_set_state(&ps->bda->bda_rc_state, + QTN_RC_FW_SYNC); + if (qtnf_poll_state(&ps->bda->bda_ep_state, + QTN_EP_FW_SYNC, + QTN_FW_DL_TIMEOUT_MS)) { + pr_err("FW upload failed: SYNC timed out\n"); + return -ETIMEDOUT; + } + + qtnf_clear_state(&ps->bda->bda_ep_state, + QTN_EP_FW_SYNC); + + if (qtnf_is_state(&ps->bda->bda_ep_state, + QTN_EP_FW_RETRY)) { + if (blk == (blk_count - 1)) { + int last_round = + blk_count & QTN_PCIE_FW_DLMASK; + blk -= last_round; + pblk -= ((last_round - 1) * + blk_size + len); + } else { + blk -= QTN_PCIE_FW_DLMASK; + pblk -= QTN_PCIE_FW_DLMASK * blk_size; + } + + qtnf_clear_state(&ps->bda->bda_ep_state, + QTN_EP_FW_RETRY); + + pr_warn("FW upload retry: block #%d\n", blk); + continue; + } + + qtnf_pearl_data_tx_reclaim(ps); + } + + pblk += len; + blk++; + } + + pr_debug("FW upload completed: totally sent %d blocks\n", blk); + return 0; +} + +static void qtnf_pearl_fw_work_handler(struct work_struct *work) +{ + struct qtnf_bus *bus = container_of(work, struct qtnf_bus, fw_work); + struct qtnf_pcie_pearl_state *ps = (void *)get_bus_priv(bus); + u32 state = QTN_RC_FW_LOADRDY | QTN_RC_FW_QLINK; + const char *fwname = QTN_PCI_PEARL_FW_NAME; + struct pci_dev *pdev = ps->base.pdev; + const struct firmware *fw; + int ret; + + if (ps->base.flashboot) { + state |= QTN_RC_FW_FLASHBOOT; + } else { + ret = request_firmware(&fw, fwname, &pdev->dev); + if (ret < 0) { + pr_err("failed to get firmware %s\n", fwname); + goto fw_load_exit; + } + } + + qtnf_set_state(&ps->bda->bda_rc_state, state); + + if (qtnf_poll_state(&ps->bda->bda_ep_state, QTN_EP_FW_LOADRDY, + QTN_FW_DL_TIMEOUT_MS)) { + pr_err("card is not ready\n"); + + if (!ps->base.flashboot) + release_firmware(fw); + + goto fw_load_exit; + } + + qtnf_clear_state(&ps->bda->bda_ep_state, QTN_EP_FW_LOADRDY); + + if (ps->base.flashboot) { + pr_info("booting firmware from flash\n"); + + } else { + pr_info("starting firmware upload: %s\n", fwname); + + ret = qtnf_ep_fw_load(ps, fw->data, fw->size); + release_firmware(fw); + if (ret) { + pr_err("firmware upload error\n"); + goto fw_load_exit; + } + } + + if (qtnf_poll_state(&ps->bda->bda_ep_state, QTN_EP_FW_DONE, + QTN_FW_DL_TIMEOUT_MS)) { + pr_err("firmware bringup timed out\n"); + goto fw_load_exit; + } + + if (qtnf_poll_state(&ps->bda->bda_ep_state, + QTN_EP_FW_QLINK_DONE, QTN_FW_QLINK_TIMEOUT_MS)) { + pr_err("firmware runtime failure\n"); + goto fw_load_exit; + } + + pr_info("firmware is up and running\n"); + + ret = qtnf_pcie_fw_boot_done(bus); + if (ret) + goto fw_load_exit; + + qtnf_debugfs_add_entry(bus, "hdp_stats", qtnf_dbg_hdp_stats); + qtnf_debugfs_add_entry(bus, "irq_stats", qtnf_dbg_irq_stats); + +fw_load_exit: + put_device(&pdev->dev); +} + +static void qtnf_pearl_reclaim_tasklet_fn(struct tasklet_struct *t) +{ + struct qtnf_pcie_pearl_state *ps = from_tasklet(ps, t, base.reclaim_tq); + + qtnf_pearl_data_tx_reclaim(ps); + qtnf_en_txdone_irq(ps); +} + +static u64 qtnf_pearl_dma_mask_get(void) +{ +#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT + return DMA_BIT_MASK(64); +#else + return DMA_BIT_MASK(32); +#endif +} + +static int qtnf_pcie_pearl_probe(struct qtnf_bus *bus, unsigned int tx_bd_size, + unsigned int rx_bd_size) +{ + struct qtnf_shm_ipc_int ipc_int; + struct qtnf_pcie_pearl_state *ps = get_bus_priv(bus); + struct pci_dev *pdev = ps->base.pdev; + int ret; + + bus->bus_ops = &qtnf_pcie_pearl_bus_ops; + spin_lock_init(&ps->irq_lock); + INIT_WORK(&bus->fw_work, qtnf_pearl_fw_work_handler); + + ps->pcie_reg_base = ps->base.dmareg_bar; + ps->bda = ps->base.epmem_bar; + writel(ps->base.msi_enabled, &ps->bda->bda_rc_msi_enabled); + + ret = qtnf_pcie_pearl_init_xfer(ps, tx_bd_size, rx_bd_size); + if (ret) { + pr_err("PCIE xfer init failed\n"); + return ret; + } + + /* init default irq settings */ + qtnf_init_hdp_irqs(ps); + + /* start with disabled irqs */ + qtnf_disable_hdp_irqs(ps); + + ret = devm_request_irq(&pdev->dev, pdev->irq, + &qtnf_pcie_pearl_interrupt, 0, + "qtnf_pearl_irq", (void *)bus); + if (ret) { + pr_err("failed to request pcie irq %d\n", pdev->irq); + qtnf_pearl_free_xfer_buffers(ps); + return ret; + } + + tasklet_setup(&ps->base.reclaim_tq, qtnf_pearl_reclaim_tasklet_fn); + netif_napi_add_weight(&bus->mux_dev, &bus->mux_napi, + qtnf_pcie_pearl_rx_poll, 10); + + ipc_int.fn = qtnf_pcie_pearl_ipc_gen_ep_int; + ipc_int.arg = ps; + qtnf_pcie_init_shm_ipc(&ps->base, &ps->bda->bda_shm_reg1, + &ps->bda->bda_shm_reg2, &ipc_int); + + return 0; +} + +static void qtnf_pcie_pearl_remove(struct qtnf_bus *bus) +{ + struct qtnf_pcie_pearl_state *ps = get_bus_priv(bus); + + qtnf_pearl_reset_ep(ps); + qtnf_pearl_free_xfer_buffers(ps); +} + +#ifdef CONFIG_PM_SLEEP +static int qtnf_pcie_pearl_suspend(struct qtnf_bus *bus) +{ + return -EOPNOTSUPP; +} + +static int qtnf_pcie_pearl_resume(struct qtnf_bus *bus) +{ + return 0; +} +#endif + +struct qtnf_bus *qtnf_pcie_pearl_alloc(struct pci_dev *pdev) +{ + struct qtnf_bus *bus; + struct qtnf_pcie_pearl_state *ps; + + bus = devm_kzalloc(&pdev->dev, sizeof(*bus) + sizeof(*ps), GFP_KERNEL); + if (!bus) + return NULL; + + ps = get_bus_priv(bus); + ps->base.probe_cb = qtnf_pcie_pearl_probe; + ps->base.remove_cb = qtnf_pcie_pearl_remove; + ps->base.dma_mask_get_cb = qtnf_pearl_dma_mask_get; +#ifdef CONFIG_PM_SLEEP + ps->base.resume_cb = qtnf_pcie_pearl_resume; + ps->base.suspend_cb = qtnf_pcie_pearl_suspend; +#endif + + return bus; +} diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie_ipc.h b/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie_ipc.h new file mode 100644 index 000000000..634480fe6 --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie_ipc.h @@ -0,0 +1,82 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* Copyright (c) 2015-2016 Quantenna Communications */ + +#ifndef _QTN_FMAC_PCIE_IPC_H_ +#define _QTN_FMAC_PCIE_IPC_H_ + +#include <linux/types.h> + +#include "shm_ipc_defs.h" + +/* bitmap for EP status and flags: updated by EP, read by RC */ +#define QTN_EP_HAS_UBOOT BIT(0) +#define QTN_EP_HAS_FIRMWARE BIT(1) +#define QTN_EP_REQ_UBOOT BIT(2) +#define QTN_EP_REQ_FIRMWARE BIT(3) +#define QTN_EP_ERROR_UBOOT BIT(4) +#define QTN_EP_ERROR_FIRMWARE BIT(5) + +#define QTN_EP_FW_LOADRDY BIT(8) +#define QTN_EP_FW_SYNC BIT(9) +#define QTN_EP_FW_RETRY BIT(10) +#define QTN_EP_FW_QLINK_DONE BIT(15) +#define QTN_EP_FW_DONE BIT(16) + +/* bitmap for RC status and flags: updated by RC, read by EP */ +#define QTN_RC_PCIE_LINK BIT(0) +#define QTN_RC_NET_LINK BIT(1) +#define QTN_RC_FW_FLASHBOOT BIT(5) +#define QTN_RC_FW_QLINK BIT(7) +#define QTN_RC_FW_LOADRDY BIT(8) +#define QTN_RC_FW_SYNC BIT(9) + +#define PCIE_HDP_INT_RX_BITS (0 \ + | PCIE_HDP_INT_EP_TXDMA \ + | PCIE_HDP_INT_EP_TXEMPTY \ + | PCIE_HDP_INT_HHBM_UF \ + ) + +#define PCIE_HDP_INT_TX_BITS (0 \ + | PCIE_HDP_INT_EP_RXDMA \ + ) + +#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT +#define QTN_HOST_HI32(a) ((u32)(((u64)a) >> 32)) +#define QTN_HOST_LO32(a) ((u32)(((u64)a) & 0xffffffffUL)) +#define QTN_HOST_ADDR(h, l) ((((u64)h) << 32) | ((u64)l)) +#else +#define QTN_HOST_HI32(a) 0 +#define QTN_HOST_LO32(a) ((u32)(((u32)a) & 0xffffffffUL)) +#define QTN_HOST_ADDR(h, l) ((u32)l) +#endif + +#define QTN_PCIE_BDA_VERSION 0x1002 + +#define PCIE_BDA_NAMELEN 32 +#define PCIE_HHBM_MAX_SIZE 2048 + +#define QTN_PCIE_BOARDFLG "PCIEQTN" +#define QTN_PCIE_FW_DLMASK 0xF +#define QTN_PCIE_FW_BUFSZ 2048 + +#define QTN_ENET_ADDR_LENGTH 6 + +#define QTN_TXDONE_MASK ((u32)0x80000000) +#define QTN_GET_LEN(x) ((x) & 0xFFFF) + +#define QTN_PCIE_TX_DESC_LEN_MASK 0xFFFF +#define QTN_PCIE_TX_DESC_LEN_SHIFT 0 +#define QTN_PCIE_TX_DESC_PORT_MASK 0xF +#define QTN_PCIE_TX_DESC_PORT_SHIFT 16 +#define QTN_PCIE_TX_DESC_TQE_BIT BIT(24) + +#define QTN_EP_LHOST_TQE_PORT 4 + +enum qtnf_fw_loadtype { + QTN_FW_DBEGIN, + QTN_FW_DSUB, + QTN_FW_DEND, + QTN_FW_CTRL +}; + +#endif /* _QTN_FMAC_PCIE_IPC_H_ */ diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie_regs.h b/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie_regs.h new file mode 100644 index 000000000..6e9a5c61d --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie_regs.h @@ -0,0 +1,121 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* Copyright (c) 2015 Quantenna Communications */ + +#ifndef __PEARL_PCIE_H +#define __PEARL_PCIE_H + +/* Pearl PCIe HDP registers */ +#define PCIE_HDP_CTRL(base) ((base) + 0x2c00) +#define PCIE_HDP_AXI_CTRL(base) ((base) + 0x2c04) +#define PCIE_HDP_HOST_WR_DESC0(base) ((base) + 0x2c10) +#define PCIE_HDP_HOST_WR_DESC0_H(base) ((base) + 0x2c14) +#define PCIE_HDP_HOST_WR_DESC1(base) ((base) + 0x2c18) +#define PCIE_HDP_HOST_WR_DESC1_H(base) ((base) + 0x2c1c) +#define PCIE_HDP_HOST_WR_DESC2(base) ((base) + 0x2c20) +#define PCIE_HDP_HOST_WR_DESC2_H(base) ((base) + 0x2c24) +#define PCIE_HDP_HOST_WR_DESC3(base) ((base) + 0x2c28) +#define PCIE_HDP_HOST_WR_DESC4_H(base) ((base) + 0x2c2c) +#define PCIE_HDP_RX_INT_CTRL(base) ((base) + 0x2c30) +#define PCIE_HDP_TX_INT_CTRL(base) ((base) + 0x2c34) +#define PCIE_HDP_INT_STATUS(base) ((base) + 0x2c38) +#define PCIE_HDP_INT_EN(base) ((base) + 0x2c3c) +#define PCIE_HDP_RX_DESC0_PTR(base) ((base) + 0x2c40) +#define PCIE_HDP_RX_DESC0_NOE(base) ((base) + 0x2c44) +#define PCIE_HDP_RX_DESC1_PTR(base) ((base) + 0x2c48) +#define PCIE_HDP_RX_DESC1_NOE(base) ((base) + 0x2c4c) +#define PCIE_HDP_RX_DESC2_PTR(base) ((base) + 0x2c50) +#define PCIE_HDP_RX_DESC2_NOE(base) ((base) + 0x2c54) +#define PCIE_HDP_RX_DESC3_PTR(base) ((base) + 0x2c58) +#define PCIE_HDP_RX_DESC3_NOE(base) ((base) + 0x2c5c) + +#define PCIE_HDP_TX0_BASE_ADDR(base) ((base) + 0x2c60) +#define PCIE_HDP_TX1_BASE_ADDR(base) ((base) + 0x2c64) +#define PCIE_HDP_TX0_Q_CTRL(base) ((base) + 0x2c70) +#define PCIE_HDP_TX1_Q_CTRL(base) ((base) + 0x2c74) +#define PCIE_HDP_CFG0(base) ((base) + 0x2c80) +#define PCIE_HDP_CFG1(base) ((base) + 0x2c84) +#define PCIE_HDP_CFG2(base) ((base) + 0x2c88) +#define PCIE_HDP_CFG3(base) ((base) + 0x2c8c) +#define PCIE_HDP_CFG4(base) ((base) + 0x2c90) +#define PCIE_HDP_CFG5(base) ((base) + 0x2c94) +#define PCIE_HDP_CFG6(base) ((base) + 0x2c98) +#define PCIE_HDP_CFG7(base) ((base) + 0x2c9c) +#define PCIE_HDP_CFG8(base) ((base) + 0x2ca0) +#define PCIE_HDP_CFG9(base) ((base) + 0x2ca4) +#define PCIE_HDP_CFG10(base) ((base) + 0x2ca8) +#define PCIE_HDP_CFG11(base) ((base) + 0x2cac) +#define PCIE_INT(base) ((base) + 0x2cb0) +#define PCIE_INT_MASK(base) ((base) + 0x2cb4) +#define PCIE_MSI_MASK(base) ((base) + 0x2cb8) +#define PCIE_MSI_PNDG(base) ((base) + 0x2cbc) +#define PCIE_PRI_CFG(base) ((base) + 0x2cc0) +#define PCIE_PHY_CR(base) ((base) + 0x2cc4) +#define PCIE_HDP_CTAG_CTRL(base) ((base) + 0x2cf4) +#define PCIE_HDP_HHBM_BUF_PTR(base) ((base) + 0x2d00) +#define PCIE_HDP_HHBM_BUF_PTR_H(base) ((base) + 0x2d04) +#define PCIE_HDP_HHBM_BUF_FIFO_NOE(base) ((base) + 0x2d04) +#define PCIE_HDP_RX0DMA_CNT(base) ((base) + 0x2d10) +#define PCIE_HDP_RX1DMA_CNT(base) ((base) + 0x2d14) +#define PCIE_HDP_RX2DMA_CNT(base) ((base) + 0x2d18) +#define PCIE_HDP_RX3DMA_CNT(base) ((base) + 0x2d1c) +#define PCIE_HDP_TX0DMA_CNT(base) ((base) + 0x2d20) +#define PCIE_HDP_TX1DMA_CNT(base) ((base) + 0x2d24) +#define PCIE_HDP_RXDMA_CTRL(base) ((base) + 0x2d28) +#define PCIE_HDP_TX_HOST_Q_SZ_CTRL(base) ((base) + 0x2d2c) +#define PCIE_HDP_TX_HOST_Q_BASE_L(base) ((base) + 0x2d30) +#define PCIE_HDP_TX_HOST_Q_BASE_H(base) ((base) + 0x2d34) +#define PCIE_HDP_TX_HOST_Q_WR_PTR(base) ((base) + 0x2d38) +#define PCIE_HDP_TX_HOST_Q_RD_PTR(base) ((base) + 0x2d3c) +#define PCIE_HDP_TX_HOST_Q_STS(base) ((base) + 0x2d40) + +/* Pearl PCIe HBM pool registers */ +#define PCIE_HHBM_CSR_REG(base) ((base) + 0x2e00) +#define PCIE_HHBM_Q_BASE_REG(base) ((base) + 0x2e04) +#define PCIE_HHBM_Q_LIMIT_REG(base) ((base) + 0x2e08) +#define PCIE_HHBM_Q_WR_REG(base) ((base) + 0x2e0c) +#define PCIE_HHBM_Q_RD_REG(base) ((base) + 0x2e10) +#define PCIE_HHBM_POOL_DATA_0_H(base) ((base) + 0x2e90) +#define PCIE_HHBM_CONFIG(base) ((base) + 0x2f9c) +#define PCIE_HHBM_POOL_REQ_0(base) ((base) + 0x2f10) +#define PCIE_HHBM_POOL_DATA_0(base) ((base) + 0x2f40) +#define PCIE_HHBM_WATERMARK_MASKED_INT(base) ((base) + 0x2f68) +#define PCIE_HHBM_WATERMARK_INT(base) ((base) + 0x2f6c) +#define PCIE_HHBM_POOL_WATERMARK(base) ((base) + 0x2f70) +#define PCIE_HHBM_POOL_OVERFLOW_CNT(base) ((base) + 0x2f90) +#define PCIE_HHBM_POOL_UNDERFLOW_CNT(base) ((base) + 0x2f94) +#define HBM_INT_STATUS(base) ((base) + 0x2f9c) +#define PCIE_HHBM_POOL_CNFIG(base) ((base) + 0x2f9c) + +/* Pearl PCIe HBM bit field definitions */ +#define HHBM_CONFIG_SOFT_RESET (BIT(8)) +#define HHBM_WR_REQ (BIT(0)) +#define HHBM_RD_REQ (BIT(1)) +#define HHBM_DONE (BIT(31)) +#define HHBM_64BIT (BIT(10)) + +/* PCIe HDP interrupt status definition */ +#define PCIE_HDP_INT_EP_RXDMA (BIT(0)) +#define PCIE_HDP_INT_HBM_UF (BIT(1)) +#define PCIE_HDP_INT_RX_LEN_ERR (BIT(2)) +#define PCIE_HDP_INT_RX_HDR_LEN_ERR (BIT(3)) +#define PCIE_HDP_INT_EP_TXDMA (BIT(12)) +#define PCIE_HDP_INT_HHBM_UF (BIT(13)) +#define PCIE_HDP_INT_EP_TXEMPTY (BIT(15)) +#define PCIE_HDP_INT_IPC (BIT(29)) + +/* PCIe interrupt status definition */ +#define PCIE_INT_MSI (BIT(24)) +#define PCIE_INT_INTX (BIT(23)) + +/* PCIe legacy INTx */ +#define PEARL_PCIE_CFG0_OFFSET (0x6C) +#define PEARL_ASSERT_INTX (BIT(9)) + +/* SYS CTL regs */ +#define QTN_PEARL_SYSCTL_LHOST_IRQ_OFFSET (0x001C) + +#define QTN_PEARL_IPC_IRQ_WORD(irq) (BIT(irq) | BIT(irq + 16)) +#define QTN_PEARL_LHOST_IPC_IRQ (6) +#define QTN_PEARL_LHOST_EP_RESET (7) + +#endif /* __PEARL_PCIE_H */ diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie.c b/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie.c new file mode 100644 index 000000000..d83362578 --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie.c @@ -0,0 +1,1236 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Copyright (c) 2018 Quantenna Communications */ + +#include <linux/kernel.h> +#include <linux/firmware.h> +#include <linux/pci.h> +#include <linux/vmalloc.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/sched.h> +#include <linux/crc32.h> +#include <linux/completion.h> +#include <linux/spinlock.h> +#include <linux/circ_buf.h> + +#include "pcie_priv.h" +#include "topaz_pcie_regs.h" +#include "topaz_pcie_ipc.h" +#include "qtn_hw_ids.h" +#include "core.h" +#include "bus.h" +#include "shm_ipc.h" +#include "debug.h" + +#define TOPAZ_TX_BD_SIZE_DEFAULT 128 +#define TOPAZ_RX_BD_SIZE_DEFAULT 256 + +struct qtnf_topaz_tx_bd { + __le32 addr; + __le32 info; +} __packed; + +struct qtnf_topaz_rx_bd { + __le32 addr; + __le32 info; +} __packed; + +struct qtnf_extra_bd_params { + __le32 param1; + __le32 param2; + __le32 param3; + __le32 param4; +} __packed; + +#define QTNF_BD_PARAM_OFFSET(n) offsetof(struct qtnf_extra_bd_params, param##n) + +struct vmac_pkt_info { + __le32 addr; + __le32 info; +}; + +struct qtnf_topaz_bda { + __le16 bda_len; + __le16 bda_version; + __le32 bda_bootstate; + __le32 bda_dma_mask; + __le32 bda_dma_offset; + __le32 bda_flags; + __le32 bda_img; + __le32 bda_img_size; + __le32 bda_ep2h_irqstatus; + __le32 bda_h2ep_irqstatus; + __le32 bda_msi_addr; + u8 reserved1[56]; + __le32 bda_flashsz; + u8 bda_boardname[PCIE_BDA_NAMELEN]; + __le32 bda_pci_pre_status; + __le32 bda_pci_endian; + __le32 bda_pci_post_status; + __le32 bda_h2ep_txd_budget; + __le32 bda_ep2h_txd_budget; + __le32 bda_rc_rx_bd_base; + __le32 bda_rc_rx_bd_num; + __le32 bda_rc_tx_bd_base; + __le32 bda_rc_tx_bd_num; + u8 bda_ep_link_state; + u8 bda_rc_link_state; + u8 bda_rc_msi_enabled; + u8 reserved2; + __le32 bda_ep_next_pkt; + struct vmac_pkt_info request[QTN_PCIE_RC_TX_QUEUE_LEN]; + struct qtnf_shm_ipc_region bda_shm_reg1 __aligned(4096); + struct qtnf_shm_ipc_region bda_shm_reg2 __aligned(4096); +} __packed; + +struct qtnf_pcie_topaz_state { + struct qtnf_pcie_bus_priv base; + struct qtnf_topaz_bda __iomem *bda; + + dma_addr_t dma_msi_dummy; + u32 dma_msi_imwr; + + struct qtnf_topaz_tx_bd *tx_bd_vbase; + struct qtnf_topaz_rx_bd *rx_bd_vbase; + + __le32 __iomem *ep_next_rx_pkt; + __le32 __iomem *txqueue_wake; + __le32 __iomem *ep_pmstate; + + unsigned long rx_pkt_count; +}; + +static void qtnf_deassert_intx(struct qtnf_pcie_topaz_state *ts) +{ + void __iomem *reg = ts->base.sysctl_bar + TOPAZ_PCIE_CFG0_OFFSET; + u32 cfg; + + cfg = readl(reg); + cfg &= ~TOPAZ_ASSERT_INTX; + qtnf_non_posted_write(cfg, reg); +} + +static inline int qtnf_topaz_intx_asserted(struct qtnf_pcie_topaz_state *ts) +{ + void __iomem *reg = ts->base.sysctl_bar + TOPAZ_PCIE_CFG0_OFFSET; + u32 cfg = readl(reg); + + return !!(cfg & TOPAZ_ASSERT_INTX); +} + +static void qtnf_topaz_reset_ep(struct qtnf_pcie_topaz_state *ts) +{ + writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_RST_EP_IRQ), + TOPAZ_LH_IPC4_INT(ts->base.sysctl_bar)); + msleep(QTN_EP_RESET_WAIT_MS); + pci_restore_state(ts->base.pdev); +} + +static void setup_rx_irqs(struct qtnf_pcie_topaz_state *ts) +{ + void __iomem *reg = PCIE_DMA_WR_DONE_IMWR_ADDR_LOW(ts->base.dmareg_bar); + + ts->dma_msi_imwr = readl(reg); +} + +static void enable_rx_irqs(struct qtnf_pcie_topaz_state *ts) +{ + void __iomem *reg = PCIE_DMA_WR_DONE_IMWR_ADDR_LOW(ts->base.dmareg_bar); + + qtnf_non_posted_write(ts->dma_msi_imwr, reg); +} + +static void disable_rx_irqs(struct qtnf_pcie_topaz_state *ts) +{ + void __iomem *reg = PCIE_DMA_WR_DONE_IMWR_ADDR_LOW(ts->base.dmareg_bar); + + qtnf_non_posted_write(QTN_HOST_LO32(ts->dma_msi_dummy), reg); +} + +static void qtnf_topaz_ipc_gen_ep_int(void *arg) +{ + struct qtnf_pcie_topaz_state *ts = arg; + + writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_CTRL_IRQ), + TOPAZ_CTL_M2L_INT(ts->base.sysctl_bar)); +} + +static int qtnf_is_state(__le32 __iomem *reg, u32 state) +{ + u32 s = readl(reg); + + return (s == state); +} + +static void qtnf_set_state(__le32 __iomem *reg, u32 state) +{ + qtnf_non_posted_write(state, reg); +} + +static int qtnf_poll_state(__le32 __iomem *reg, u32 state, u32 delay_in_ms) +{ + u32 timeout = 0; + + while ((qtnf_is_state(reg, state) == 0)) { + usleep_range(1000, 1200); + if (++timeout > delay_in_ms) + return -1; + } + + return 0; +} + +static int topaz_alloc_bd_table(struct qtnf_pcie_topaz_state *ts, + struct qtnf_topaz_bda __iomem *bda) +{ + struct qtnf_extra_bd_params __iomem *extra_params; + struct qtnf_pcie_bus_priv *priv = &ts->base; + dma_addr_t paddr; + void *vaddr; + int len; + int i; + + /* bd table */ + + len = priv->tx_bd_num * sizeof(struct qtnf_topaz_tx_bd) + + priv->rx_bd_num * sizeof(struct qtnf_topaz_rx_bd) + + sizeof(struct qtnf_extra_bd_params); + + vaddr = dmam_alloc_coherent(&priv->pdev->dev, len, &paddr, GFP_KERNEL); + if (!vaddr) + return -ENOMEM; + + /* tx bd */ + + ts->tx_bd_vbase = vaddr; + qtnf_non_posted_write(paddr, &bda->bda_rc_tx_bd_base); + + for (i = 0; i < priv->tx_bd_num; i++) + ts->tx_bd_vbase[i].info |= cpu_to_le32(QTN_BD_EMPTY); + + pr_debug("TX descriptor table: vaddr=0x%p paddr=%pad\n", vaddr, &paddr); + + priv->tx_bd_r_index = 0; + priv->tx_bd_w_index = 0; + + /* rx bd */ + + vaddr = ((struct qtnf_topaz_tx_bd *)vaddr) + priv->tx_bd_num; + paddr += priv->tx_bd_num * sizeof(struct qtnf_topaz_tx_bd); + + ts->rx_bd_vbase = vaddr; + qtnf_non_posted_write(paddr, &bda->bda_rc_rx_bd_base); + + pr_debug("RX descriptor table: vaddr=0x%p paddr=%pad\n", vaddr, &paddr); + + /* extra shared params */ + + vaddr = ((struct qtnf_topaz_rx_bd *)vaddr) + priv->rx_bd_num; + paddr += priv->rx_bd_num * sizeof(struct qtnf_topaz_rx_bd); + + extra_params = (struct qtnf_extra_bd_params __iomem *)vaddr; + + ts->ep_next_rx_pkt = &extra_params->param1; + qtnf_non_posted_write(paddr + QTNF_BD_PARAM_OFFSET(1), + &bda->bda_ep_next_pkt); + ts->txqueue_wake = &extra_params->param2; + ts->ep_pmstate = &extra_params->param3; + ts->dma_msi_dummy = paddr + QTNF_BD_PARAM_OFFSET(4); + + return 0; +} + +static int +topaz_skb2rbd_attach(struct qtnf_pcie_topaz_state *ts, u16 index, u32 wrap) +{ + struct qtnf_topaz_rx_bd *rxbd = &ts->rx_bd_vbase[index]; + struct sk_buff *skb; + dma_addr_t paddr; + + skb = netdev_alloc_skb_ip_align(NULL, SKB_BUF_SIZE); + if (!skb) { + ts->base.rx_skb[index] = NULL; + return -ENOMEM; + } + + ts->base.rx_skb[index] = skb; + + paddr = dma_map_single(&ts->base.pdev->dev, skb->data, SKB_BUF_SIZE, + DMA_FROM_DEVICE); + if (dma_mapping_error(&ts->base.pdev->dev, paddr)) { + pr_err("skb mapping error: %pad\n", &paddr); + return -ENOMEM; + } + + rxbd->addr = cpu_to_le32(QTN_HOST_LO32(paddr)); + rxbd->info = cpu_to_le32(QTN_BD_EMPTY | wrap); + + ts->base.rx_bd_w_index = index; + + return 0; +} + +static int topaz_alloc_rx_buffers(struct qtnf_pcie_topaz_state *ts) +{ + u16 i; + int ret = 0; + + memset(ts->rx_bd_vbase, 0x0, + ts->base.rx_bd_num * sizeof(struct qtnf_topaz_rx_bd)); + + for (i = 0; i < ts->base.rx_bd_num; i++) { + ret = topaz_skb2rbd_attach(ts, i, 0); + if (ret) + break; + } + + ts->rx_bd_vbase[ts->base.rx_bd_num - 1].info |= + cpu_to_le32(QTN_BD_WRAP); + + return ret; +} + +/* all rx/tx activity should have ceased before calling this function */ +static void qtnf_topaz_free_xfer_buffers(struct qtnf_pcie_topaz_state *ts) +{ + struct qtnf_pcie_bus_priv *priv = &ts->base; + struct qtnf_topaz_rx_bd *rxbd; + struct qtnf_topaz_tx_bd *txbd; + struct sk_buff *skb; + dma_addr_t paddr; + int i; + + /* free rx buffers */ + for (i = 0; i < priv->rx_bd_num; i++) { + if (priv->rx_skb && priv->rx_skb[i]) { + rxbd = &ts->rx_bd_vbase[i]; + skb = priv->rx_skb[i]; + paddr = QTN_HOST_ADDR(0x0, le32_to_cpu(rxbd->addr)); + dma_unmap_single(&priv->pdev->dev, paddr, + SKB_BUF_SIZE, DMA_FROM_DEVICE); + dev_kfree_skb_any(skb); + priv->rx_skb[i] = NULL; + rxbd->addr = 0; + rxbd->info = 0; + } + } + + /* free tx buffers */ + for (i = 0; i < priv->tx_bd_num; i++) { + if (priv->tx_skb && priv->tx_skb[i]) { + txbd = &ts->tx_bd_vbase[i]; + skb = priv->tx_skb[i]; + paddr = QTN_HOST_ADDR(0x0, le32_to_cpu(txbd->addr)); + dma_unmap_single(&priv->pdev->dev, paddr, + SKB_BUF_SIZE, DMA_TO_DEVICE); + dev_kfree_skb_any(skb); + priv->tx_skb[i] = NULL; + txbd->addr = 0; + txbd->info = 0; + } + } +} + +static int qtnf_pcie_topaz_init_xfer(struct qtnf_pcie_topaz_state *ts, + unsigned int tx_bd_size, + unsigned int rx_bd_size) +{ + struct qtnf_topaz_bda __iomem *bda = ts->bda; + struct qtnf_pcie_bus_priv *priv = &ts->base; + int ret; + + if (tx_bd_size == 0) + tx_bd_size = TOPAZ_TX_BD_SIZE_DEFAULT; + + /* check TX BD queue max length according to struct qtnf_topaz_bda */ + if (tx_bd_size > QTN_PCIE_RC_TX_QUEUE_LEN) { + pr_warn("TX BD queue cannot exceed %d\n", + QTN_PCIE_RC_TX_QUEUE_LEN); + tx_bd_size = QTN_PCIE_RC_TX_QUEUE_LEN; + } + + priv->tx_bd_num = tx_bd_size; + qtnf_non_posted_write(priv->tx_bd_num, &bda->bda_rc_tx_bd_num); + + if (rx_bd_size == 0) + rx_bd_size = TOPAZ_RX_BD_SIZE_DEFAULT; + + if (rx_bd_size > TOPAZ_RX_BD_SIZE_DEFAULT) { + pr_warn("RX BD queue cannot exceed %d\n", + TOPAZ_RX_BD_SIZE_DEFAULT); + rx_bd_size = TOPAZ_RX_BD_SIZE_DEFAULT; + } + + priv->rx_bd_num = rx_bd_size; + qtnf_non_posted_write(priv->rx_bd_num, &bda->bda_rc_rx_bd_num); + + priv->rx_bd_w_index = 0; + priv->rx_bd_r_index = 0; + + ret = qtnf_pcie_alloc_skb_array(priv); + if (ret) { + pr_err("failed to allocate skb array\n"); + return ret; + } + + ret = topaz_alloc_bd_table(ts, bda); + if (ret) { + pr_err("failed to allocate bd table\n"); + return ret; + } + + ret = topaz_alloc_rx_buffers(ts); + if (ret) { + pr_err("failed to allocate rx buffers\n"); + return ret; + } + + return ret; +} + +static void qtnf_topaz_data_tx_reclaim(struct qtnf_pcie_topaz_state *ts) +{ + struct qtnf_pcie_bus_priv *priv = &ts->base; + struct qtnf_topaz_tx_bd *txbd; + struct sk_buff *skb; + unsigned long flags; + dma_addr_t paddr; + u32 tx_done_index; + int count = 0; + int i; + + spin_lock_irqsave(&priv->tx_reclaim_lock, flags); + + tx_done_index = readl(ts->ep_next_rx_pkt); + i = priv->tx_bd_r_index; + + if (CIRC_CNT(priv->tx_bd_w_index, tx_done_index, priv->tx_bd_num)) + writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_TX_DONE_IRQ), + TOPAZ_LH_IPC4_INT(priv->sysctl_bar)); + + while (CIRC_CNT(tx_done_index, i, priv->tx_bd_num)) { + skb = priv->tx_skb[i]; + + if (likely(skb)) { + txbd = &ts->tx_bd_vbase[i]; + paddr = QTN_HOST_ADDR(0x0, le32_to_cpu(txbd->addr)); + dma_unmap_single(&priv->pdev->dev, paddr, skb->len, + DMA_TO_DEVICE); + + if (skb->dev) { + dev_sw_netstats_tx_add(skb->dev, 1, skb->len); + if (unlikely(priv->tx_stopped)) { + qtnf_wake_all_queues(skb->dev); + priv->tx_stopped = 0; + } + } + + dev_kfree_skb_any(skb); + } + + priv->tx_skb[i] = NULL; + count++; + + if (++i >= priv->tx_bd_num) + i = 0; + } + + priv->tx_reclaim_done += count; + priv->tx_reclaim_req++; + priv->tx_bd_r_index = i; + + spin_unlock_irqrestore(&priv->tx_reclaim_lock, flags); +} + +static void qtnf_try_stop_xmit(struct qtnf_bus *bus, struct net_device *ndev) +{ + struct qtnf_pcie_topaz_state *ts = (void *)get_bus_priv(bus); + + if (ndev) { + netif_tx_stop_all_queues(ndev); + ts->base.tx_stopped = 1; + } + + writel(0x0, ts->txqueue_wake); + + /* sync up tx queue status before generating interrupt */ + dma_wmb(); + + /* send irq to card: tx stopped */ + writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_TX_STOP_IRQ), + TOPAZ_LH_IPC4_INT(ts->base.sysctl_bar)); + + /* schedule reclaim attempt */ + tasklet_hi_schedule(&ts->base.reclaim_tq); +} + +static void qtnf_try_wake_xmit(struct qtnf_bus *bus, struct net_device *ndev) +{ + struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus); + int ready; + + ready = readl(ts->txqueue_wake); + if (ready) { + netif_wake_queue(ndev); + } else { + /* re-send irq to card: tx stopped */ + writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_TX_STOP_IRQ), + TOPAZ_LH_IPC4_INT(ts->base.sysctl_bar)); + } +} + +static int qtnf_tx_queue_ready(struct qtnf_pcie_topaz_state *ts) +{ + struct qtnf_pcie_bus_priv *priv = &ts->base; + + if (!CIRC_SPACE(priv->tx_bd_w_index, priv->tx_bd_r_index, + priv->tx_bd_num)) { + qtnf_topaz_data_tx_reclaim(ts); + + if (!CIRC_SPACE(priv->tx_bd_w_index, priv->tx_bd_r_index, + priv->tx_bd_num)) { + priv->tx_full_count++; + return 0; + } + } + + return 1; +} + +static int qtnf_pcie_data_tx(struct qtnf_bus *bus, struct sk_buff *skb, + unsigned int macid, unsigned int vifid) +{ + struct qtnf_pcie_topaz_state *ts = (void *)get_bus_priv(bus); + struct qtnf_pcie_bus_priv *priv = &ts->base; + struct qtnf_topaz_bda __iomem *bda = ts->bda; + struct qtnf_topaz_tx_bd *txbd; + dma_addr_t skb_paddr; + unsigned long flags; + int ret = 0; + int len; + int i; + + spin_lock_irqsave(&priv->tx_lock, flags); + + if (!qtnf_tx_queue_ready(ts)) { + qtnf_try_stop_xmit(bus, skb->dev); + spin_unlock_irqrestore(&priv->tx_lock, flags); + return NETDEV_TX_BUSY; + } + + i = priv->tx_bd_w_index; + priv->tx_skb[i] = skb; + len = skb->len; + + skb_paddr = dma_map_single(&priv->pdev->dev, skb->data, skb->len, + DMA_TO_DEVICE); + if (dma_mapping_error(&priv->pdev->dev, skb_paddr)) { + ret = -ENOMEM; + goto tx_done; + } + + txbd = &ts->tx_bd_vbase[i]; + txbd->addr = cpu_to_le32(QTN_HOST_LO32(skb_paddr)); + + writel(QTN_HOST_LO32(skb_paddr), &bda->request[i].addr); + writel(len | QTN_PCIE_TX_VALID_PKT, &bda->request[i].info); + + /* sync up descriptor updates before generating interrupt */ + dma_wmb(); + + /* generate irq to card: tx done */ + writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_TX_DONE_IRQ), + TOPAZ_LH_IPC4_INT(priv->sysctl_bar)); + + if (++i >= priv->tx_bd_num) + i = 0; + + priv->tx_bd_w_index = i; + +tx_done: + if (ret) { + if (skb->dev) + skb->dev->stats.tx_dropped++; + dev_kfree_skb_any(skb); + } + + priv->tx_done_count++; + spin_unlock_irqrestore(&priv->tx_lock, flags); + + qtnf_topaz_data_tx_reclaim(ts); + + return NETDEV_TX_OK; +} + +static irqreturn_t qtnf_pcie_topaz_interrupt(int irq, void *data) +{ + struct qtnf_bus *bus = (struct qtnf_bus *)data; + struct qtnf_pcie_topaz_state *ts = (void *)get_bus_priv(bus); + struct qtnf_pcie_bus_priv *priv = &ts->base; + + if (!priv->msi_enabled && !qtnf_topaz_intx_asserted(ts)) + return IRQ_NONE; + + if (!priv->msi_enabled) + qtnf_deassert_intx(ts); + + priv->pcie_irq_count++; + + qtnf_shm_ipc_irq_handler(&priv->shm_ipc_ep_in); + qtnf_shm_ipc_irq_handler(&priv->shm_ipc_ep_out); + + if (napi_schedule_prep(&bus->mux_napi)) { + disable_rx_irqs(ts); + __napi_schedule(&bus->mux_napi); + } + + tasklet_hi_schedule(&priv->reclaim_tq); + + return IRQ_HANDLED; +} + +static int qtnf_rx_data_ready(struct qtnf_pcie_topaz_state *ts) +{ + u16 index = ts->base.rx_bd_r_index; + struct qtnf_topaz_rx_bd *rxbd; + u32 descw; + + rxbd = &ts->rx_bd_vbase[index]; + descw = le32_to_cpu(rxbd->info); + + if (descw & QTN_BD_EMPTY) + return 0; + + return 1; +} + +static int qtnf_topaz_rx_poll(struct napi_struct *napi, int budget) +{ + struct qtnf_bus *bus = container_of(napi, struct qtnf_bus, mux_napi); + struct qtnf_pcie_topaz_state *ts = (void *)get_bus_priv(bus); + struct qtnf_pcie_bus_priv *priv = &ts->base; + struct net_device *ndev = NULL; + struct sk_buff *skb = NULL; + int processed = 0; + struct qtnf_topaz_rx_bd *rxbd; + dma_addr_t skb_paddr; + int consume; + u32 descw; + u32 poffset; + u32 psize; + u16 r_idx; + u16 w_idx; + int ret; + + while (processed < budget) { + if (!qtnf_rx_data_ready(ts)) + goto rx_out; + + r_idx = priv->rx_bd_r_index; + rxbd = &ts->rx_bd_vbase[r_idx]; + descw = le32_to_cpu(rxbd->info); + + skb = priv->rx_skb[r_idx]; + poffset = QTN_GET_OFFSET(descw); + psize = QTN_GET_LEN(descw); + consume = 1; + + if (descw & QTN_BD_EMPTY) { + pr_warn("skip invalid rxbd[%d]\n", r_idx); + consume = 0; + } + + if (!skb) { + pr_warn("skip missing rx_skb[%d]\n", r_idx); + consume = 0; + } + + if (skb && (skb_tailroom(skb) < psize)) { + pr_err("skip packet with invalid length: %u > %u\n", + psize, skb_tailroom(skb)); + consume = 0; + } + + if (skb) { + skb_paddr = QTN_HOST_ADDR(0x0, le32_to_cpu(rxbd->addr)); + dma_unmap_single(&priv->pdev->dev, skb_paddr, + SKB_BUF_SIZE, DMA_FROM_DEVICE); + } + + if (consume) { + skb_reserve(skb, poffset); + skb_put(skb, psize); + ndev = qtnf_classify_skb(bus, skb); + if (likely(ndev)) { + dev_sw_netstats_rx_add(ndev, skb->len); + skb->protocol = eth_type_trans(skb, ndev); + netif_receive_skb(skb); + } else { + pr_debug("drop untagged skb\n"); + bus->mux_dev.stats.rx_dropped++; + dev_kfree_skb_any(skb); + } + } else { + if (skb) { + bus->mux_dev.stats.rx_dropped++; + dev_kfree_skb_any(skb); + } + } + + /* notify card about recv packets once per several packets */ + if (((++ts->rx_pkt_count) & RX_DONE_INTR_MSK) == 0) + writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_RX_DONE_IRQ), + TOPAZ_LH_IPC4_INT(priv->sysctl_bar)); + + priv->rx_skb[r_idx] = NULL; + if (++r_idx >= priv->rx_bd_num) + r_idx = 0; + + priv->rx_bd_r_index = r_idx; + + /* repalce processed buffer by a new one */ + w_idx = priv->rx_bd_w_index; + while (CIRC_SPACE(priv->rx_bd_w_index, priv->rx_bd_r_index, + priv->rx_bd_num) > 0) { + if (++w_idx >= priv->rx_bd_num) + w_idx = 0; + + ret = topaz_skb2rbd_attach(ts, w_idx, + descw & QTN_BD_WRAP); + if (ret) { + pr_err("failed to allocate new rx_skb[%d]\n", + w_idx); + break; + } + } + + processed++; + } + +rx_out: + if (processed < budget) { + napi_complete(napi); + enable_rx_irqs(ts); + } + + return processed; +} + +static void +qtnf_pcie_data_tx_timeout(struct qtnf_bus *bus, struct net_device *ndev) +{ + struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus); + + qtnf_try_wake_xmit(bus, ndev); + tasklet_hi_schedule(&ts->base.reclaim_tq); +} + +static void qtnf_pcie_data_rx_start(struct qtnf_bus *bus) +{ + struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus); + + napi_enable(&bus->mux_napi); + enable_rx_irqs(ts); +} + +static void qtnf_pcie_data_rx_stop(struct qtnf_bus *bus) +{ + struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus); + + disable_rx_irqs(ts); + napi_disable(&bus->mux_napi); +} + +static struct qtnf_bus_ops qtnf_pcie_topaz_bus_ops = { + /* control path methods */ + .control_tx = qtnf_pcie_control_tx, + + /* data path methods */ + .data_tx = qtnf_pcie_data_tx, + .data_tx_timeout = qtnf_pcie_data_tx_timeout, + .data_rx_start = qtnf_pcie_data_rx_start, + .data_rx_stop = qtnf_pcie_data_rx_stop, +}; + +static int qtnf_dbg_irq_stats(struct seq_file *s, void *data) +{ + struct qtnf_bus *bus = dev_get_drvdata(s->private); + struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus); + + seq_printf(s, "pcie_irq_count(%u)\n", ts->base.pcie_irq_count); + + return 0; +} + +static int qtnf_dbg_pkt_stats(struct seq_file *s, void *data) +{ + struct qtnf_bus *bus = dev_get_drvdata(s->private); + struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus); + struct qtnf_pcie_bus_priv *priv = &ts->base; + u32 tx_done_index = readl(ts->ep_next_rx_pkt); + + seq_printf(s, "tx_full_count(%u)\n", priv->tx_full_count); + seq_printf(s, "tx_done_count(%u)\n", priv->tx_done_count); + seq_printf(s, "tx_reclaim_done(%u)\n", priv->tx_reclaim_done); + seq_printf(s, "tx_reclaim_req(%u)\n", priv->tx_reclaim_req); + + seq_printf(s, "tx_bd_r_index(%u)\n", priv->tx_bd_r_index); + seq_printf(s, "tx_done_index(%u)\n", tx_done_index); + seq_printf(s, "tx_bd_w_index(%u)\n", priv->tx_bd_w_index); + + seq_printf(s, "tx host queue len(%u)\n", + CIRC_CNT(priv->tx_bd_w_index, priv->tx_bd_r_index, + priv->tx_bd_num)); + seq_printf(s, "tx reclaim queue len(%u)\n", + CIRC_CNT(tx_done_index, priv->tx_bd_r_index, + priv->tx_bd_num)); + seq_printf(s, "tx card queue len(%u)\n", + CIRC_CNT(priv->tx_bd_w_index, tx_done_index, + priv->tx_bd_num)); + + seq_printf(s, "rx_bd_r_index(%u)\n", priv->rx_bd_r_index); + seq_printf(s, "rx_bd_w_index(%u)\n", priv->rx_bd_w_index); + seq_printf(s, "rx alloc queue len(%u)\n", + CIRC_SPACE(priv->rx_bd_w_index, priv->rx_bd_r_index, + priv->rx_bd_num)); + + return 0; +} + +static void qtnf_reset_dma_offset(struct qtnf_pcie_topaz_state *ts) +{ + struct qtnf_topaz_bda __iomem *bda = ts->bda; + u32 offset = readl(&bda->bda_dma_offset); + + if ((offset & PCIE_DMA_OFFSET_ERROR_MASK) != PCIE_DMA_OFFSET_ERROR) + return; + + writel(0x0, &bda->bda_dma_offset); +} + +static int qtnf_pcie_endian_detect(struct qtnf_pcie_topaz_state *ts) +{ + struct qtnf_topaz_bda __iomem *bda = ts->bda; + u32 timeout = 0; + u32 endian; + int ret = 0; + + writel(QTN_PCI_ENDIAN_DETECT_DATA, &bda->bda_pci_endian); + + /* flush endian modifications before status update */ + dma_wmb(); + + writel(QTN_PCI_ENDIAN_VALID_STATUS, &bda->bda_pci_pre_status); + + while (readl(&bda->bda_pci_post_status) != + QTN_PCI_ENDIAN_VALID_STATUS) { + usleep_range(1000, 1200); + if (++timeout > QTN_FW_DL_TIMEOUT_MS) { + pr_err("card endianness detection timed out\n"); + ret = -ETIMEDOUT; + goto endian_out; + } + } + + /* do not read before status is updated */ + dma_rmb(); + + endian = readl(&bda->bda_pci_endian); + WARN(endian != QTN_PCI_LITTLE_ENDIAN, + "%s: unexpected card endianness", __func__); + +endian_out: + writel(0, &bda->bda_pci_pre_status); + writel(0, &bda->bda_pci_post_status); + writel(0, &bda->bda_pci_endian); + + return ret; +} + +static int qtnf_pre_init_ep(struct qtnf_bus *bus) +{ + struct qtnf_pcie_topaz_state *ts = (void *)get_bus_priv(bus); + struct qtnf_topaz_bda __iomem *bda = ts->bda; + u32 flags; + int ret; + + ret = qtnf_pcie_endian_detect(ts); + if (ret < 0) { + pr_err("failed to detect card endianness\n"); + return ret; + } + + writeb(ts->base.msi_enabled, &ts->bda->bda_rc_msi_enabled); + qtnf_reset_dma_offset(ts); + + /* notify card about driver type and boot mode */ + flags = readl(&bda->bda_flags) | QTN_BDA_HOST_QLINK_DRV; + + if (ts->base.flashboot) + flags |= QTN_BDA_FLASH_BOOT; + else + flags &= ~QTN_BDA_FLASH_BOOT; + + writel(flags, &bda->bda_flags); + + qtnf_set_state(&ts->bda->bda_bootstate, QTN_BDA_FW_HOST_RDY); + if (qtnf_poll_state(&ts->bda->bda_bootstate, QTN_BDA_FW_TARGET_RDY, + QTN_FW_DL_TIMEOUT_MS)) { + pr_err("card is not ready to boot...\n"); + return -ETIMEDOUT; + } + + return ret; +} + +static int qtnf_post_init_ep(struct qtnf_pcie_topaz_state *ts) +{ + struct pci_dev *pdev = ts->base.pdev; + + setup_rx_irqs(ts); + disable_rx_irqs(ts); + + if (qtnf_poll_state(&ts->bda->bda_bootstate, QTN_BDA_FW_QLINK_DONE, + QTN_FW_QLINK_TIMEOUT_MS)) + return -ETIMEDOUT; + + enable_irq(pdev->irq); + return 0; +} + +static int +qtnf_ep_fw_load(struct qtnf_pcie_topaz_state *ts, const u8 *fw, u32 fw_size) +{ + struct qtnf_topaz_bda __iomem *bda = ts->bda; + struct pci_dev *pdev = ts->base.pdev; + u32 remaining = fw_size; + u8 *curr = (u8 *)fw; + u32 blksize; + u32 nblocks; + u32 offset; + u32 count; + u32 size; + dma_addr_t paddr; + void *data; + int ret = 0; + + pr_debug("FW upload started: fw_addr = 0x%p, size=%d\n", fw, fw_size); + + blksize = ts->base.fw_blksize; + + if (blksize < PAGE_SIZE) + blksize = PAGE_SIZE; + + while (blksize >= PAGE_SIZE) { + pr_debug("allocating %u bytes to upload FW\n", blksize); + data = dma_alloc_coherent(&pdev->dev, blksize, + &paddr, GFP_KERNEL); + if (data) + break; + blksize /= 2; + } + + if (!data) { + pr_err("failed to allocate DMA buffer for FW upload\n"); + ret = -ENOMEM; + goto fw_load_out; + } + + nblocks = NBLOCKS(fw_size, blksize); + offset = readl(&bda->bda_dma_offset); + + qtnf_set_state(&ts->bda->bda_bootstate, QTN_BDA_FW_HOST_LOAD); + if (qtnf_poll_state(&ts->bda->bda_bootstate, QTN_BDA_FW_EP_RDY, + QTN_FW_DL_TIMEOUT_MS)) { + pr_err("card is not ready to download FW\n"); + ret = -ETIMEDOUT; + goto fw_load_map; + } + + for (count = 0 ; count < nblocks; count++) { + size = (remaining > blksize) ? blksize : remaining; + + memcpy(data, curr, size); + qtnf_non_posted_write(paddr + offset, &bda->bda_img); + qtnf_non_posted_write(size, &bda->bda_img_size); + + pr_debug("chunk[%u] VA[0x%p] PA[%pad] sz[%u]\n", + count, (void *)curr, &paddr, size); + + qtnf_set_state(&ts->bda->bda_bootstate, QTN_BDA_FW_BLOCK_RDY); + if (qtnf_poll_state(&ts->bda->bda_bootstate, + QTN_BDA_FW_BLOCK_DONE, + QTN_FW_DL_TIMEOUT_MS)) { + pr_err("confirmation for block #%d timed out\n", count); + ret = -ETIMEDOUT; + goto fw_load_map; + } + + remaining = (remaining < size) ? remaining : (remaining - size); + curr += size; + } + + /* upload completion mark: zero-sized block */ + qtnf_non_posted_write(0, &bda->bda_img); + qtnf_non_posted_write(0, &bda->bda_img_size); + + qtnf_set_state(&ts->bda->bda_bootstate, QTN_BDA_FW_BLOCK_RDY); + if (qtnf_poll_state(&ts->bda->bda_bootstate, QTN_BDA_FW_BLOCK_DONE, + QTN_FW_DL_TIMEOUT_MS)) { + pr_err("confirmation for the last block timed out\n"); + ret = -ETIMEDOUT; + goto fw_load_map; + } + + /* RC is done */ + qtnf_set_state(&ts->bda->bda_bootstate, QTN_BDA_FW_BLOCK_END); + if (qtnf_poll_state(&ts->bda->bda_bootstate, QTN_BDA_FW_LOAD_DONE, + QTN_FW_DL_TIMEOUT_MS)) { + pr_err("confirmation for FW upload completion timed out\n"); + ret = -ETIMEDOUT; + goto fw_load_map; + } + + pr_debug("FW upload completed: totally sent %d blocks\n", count); + +fw_load_map: + dma_free_coherent(&pdev->dev, blksize, data, paddr); + +fw_load_out: + return ret; +} + +static int qtnf_topaz_fw_upload(struct qtnf_pcie_topaz_state *ts, + const char *fwname) +{ + const struct firmware *fw; + struct pci_dev *pdev = ts->base.pdev; + int ret; + + if (qtnf_poll_state(&ts->bda->bda_bootstate, + QTN_BDA_FW_LOAD_RDY, + QTN_FW_DL_TIMEOUT_MS)) { + pr_err("%s: card is not ready\n", fwname); + return -1; + } + + pr_info("starting firmware upload: %s\n", fwname); + + ret = request_firmware(&fw, fwname, &pdev->dev); + if (ret < 0) { + pr_err("%s: request_firmware error %d\n", fwname, ret); + return -1; + } + + ret = qtnf_ep_fw_load(ts, fw->data, fw->size); + release_firmware(fw); + + if (ret) + pr_err("%s: FW upload error\n", fwname); + + return ret; +} + +static void qtnf_topaz_fw_work_handler(struct work_struct *work) +{ + struct qtnf_bus *bus = container_of(work, struct qtnf_bus, fw_work); + struct qtnf_pcie_topaz_state *ts = (void *)get_bus_priv(bus); + int bootloader_needed = readl(&ts->bda->bda_flags) & QTN_BDA_XMIT_UBOOT; + struct pci_dev *pdev = ts->base.pdev; + int ret; + + qtnf_set_state(&ts->bda->bda_bootstate, QTN_BDA_FW_TARGET_BOOT); + + if (bootloader_needed) { + ret = qtnf_topaz_fw_upload(ts, QTN_PCI_TOPAZ_BOOTLD_NAME); + if (ret) + goto fw_load_exit; + + ret = qtnf_pre_init_ep(bus); + if (ret) + goto fw_load_exit; + + qtnf_set_state(&ts->bda->bda_bootstate, + QTN_BDA_FW_TARGET_BOOT); + } + + if (ts->base.flashboot) { + pr_info("booting firmware from flash\n"); + + ret = qtnf_poll_state(&ts->bda->bda_bootstate, + QTN_BDA_FW_FLASH_BOOT, + QTN_FW_DL_TIMEOUT_MS); + if (ret) + goto fw_load_exit; + } else { + ret = qtnf_topaz_fw_upload(ts, QTN_PCI_TOPAZ_FW_NAME); + if (ret) + goto fw_load_exit; + + qtnf_set_state(&ts->bda->bda_bootstate, QTN_BDA_FW_START); + ret = qtnf_poll_state(&ts->bda->bda_bootstate, + QTN_BDA_FW_CONFIG, + QTN_FW_QLINK_TIMEOUT_MS); + if (ret) { + pr_err("FW bringup timed out\n"); + goto fw_load_exit; + } + + qtnf_set_state(&ts->bda->bda_bootstate, QTN_BDA_FW_RUN); + ret = qtnf_poll_state(&ts->bda->bda_bootstate, + QTN_BDA_FW_RUNNING, + QTN_FW_QLINK_TIMEOUT_MS); + if (ret) { + pr_err("card bringup timed out\n"); + goto fw_load_exit; + } + } + + ret = qtnf_post_init_ep(ts); + if (ret) { + pr_err("FW runtime failure\n"); + goto fw_load_exit; + } + + pr_info("firmware is up and running\n"); + + ret = qtnf_pcie_fw_boot_done(bus); + if (ret) + goto fw_load_exit; + + qtnf_debugfs_add_entry(bus, "pkt_stats", qtnf_dbg_pkt_stats); + qtnf_debugfs_add_entry(bus, "irq_stats", qtnf_dbg_irq_stats); + +fw_load_exit: + put_device(&pdev->dev); +} + +static void qtnf_reclaim_tasklet_fn(struct tasklet_struct *t) +{ + struct qtnf_pcie_topaz_state *ts = from_tasklet(ts, t, base.reclaim_tq); + + qtnf_topaz_data_tx_reclaim(ts); +} + +static u64 qtnf_topaz_dma_mask_get(void) +{ + return DMA_BIT_MASK(32); +} + +static int qtnf_pcie_topaz_probe(struct qtnf_bus *bus, + unsigned int tx_bd_num, unsigned int rx_bd_num) +{ + struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus); + struct pci_dev *pdev = ts->base.pdev; + struct qtnf_shm_ipc_int ipc_int; + unsigned long irqflags; + int ret; + + bus->bus_ops = &qtnf_pcie_topaz_bus_ops; + INIT_WORK(&bus->fw_work, qtnf_topaz_fw_work_handler); + ts->bda = ts->base.epmem_bar; + + /* assign host msi irq before card init */ + if (ts->base.msi_enabled) + irqflags = IRQF_NOBALANCING; + else + irqflags = IRQF_NOBALANCING | IRQF_SHARED; + + ret = devm_request_irq(&pdev->dev, pdev->irq, + &qtnf_pcie_topaz_interrupt, + irqflags, "qtnf_topaz_irq", (void *)bus); + if (ret) { + pr_err("failed to request pcie irq %d\n", pdev->irq); + return ret; + } + + disable_irq(pdev->irq); + + ret = qtnf_pre_init_ep(bus); + if (ret) { + pr_err("failed to init card\n"); + return ret; + } + + ret = qtnf_pcie_topaz_init_xfer(ts, tx_bd_num, rx_bd_num); + if (ret) { + pr_err("PCIE xfer init failed\n"); + return ret; + } + + tasklet_setup(&ts->base.reclaim_tq, qtnf_reclaim_tasklet_fn); + netif_napi_add_weight(&bus->mux_dev, &bus->mux_napi, + qtnf_topaz_rx_poll, 10); + + ipc_int.fn = qtnf_topaz_ipc_gen_ep_int; + ipc_int.arg = ts; + qtnf_pcie_init_shm_ipc(&ts->base, &ts->bda->bda_shm_reg1, + &ts->bda->bda_shm_reg2, &ipc_int); + + return 0; +} + +static void qtnf_pcie_topaz_remove(struct qtnf_bus *bus) +{ + struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus); + + qtnf_topaz_reset_ep(ts); + qtnf_topaz_free_xfer_buffers(ts); +} + +#ifdef CONFIG_PM_SLEEP +static int qtnf_pcie_topaz_suspend(struct qtnf_bus *bus) +{ + struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus); + struct pci_dev *pdev = ts->base.pdev; + + writel((u32 __force)PCI_D3hot, ts->ep_pmstate); + dma_wmb(); + writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_PM_EP_IRQ), + TOPAZ_LH_IPC4_INT(ts->base.sysctl_bar)); + + pci_save_state(pdev); + pci_enable_wake(pdev, PCI_D3hot, 1); + pci_set_power_state(pdev, PCI_D3hot); + + return 0; +} + +static int qtnf_pcie_topaz_resume(struct qtnf_bus *bus) +{ + struct qtnf_pcie_topaz_state *ts = get_bus_priv(bus); + struct pci_dev *pdev = ts->base.pdev; + + pci_set_power_state(pdev, PCI_D0); + pci_restore_state(pdev); + pci_enable_wake(pdev, PCI_D0, 0); + + writel((u32 __force)PCI_D0, ts->ep_pmstate); + dma_wmb(); + writel(TOPAZ_IPC_IRQ_WORD(TOPAZ_RC_PM_EP_IRQ), + TOPAZ_LH_IPC4_INT(ts->base.sysctl_bar)); + + return 0; +} +#endif + +struct qtnf_bus *qtnf_pcie_topaz_alloc(struct pci_dev *pdev) +{ + struct qtnf_bus *bus; + struct qtnf_pcie_topaz_state *ts; + + bus = devm_kzalloc(&pdev->dev, sizeof(*bus) + sizeof(*ts), GFP_KERNEL); + if (!bus) + return NULL; + + ts = get_bus_priv(bus); + ts->base.probe_cb = qtnf_pcie_topaz_probe; + ts->base.remove_cb = qtnf_pcie_topaz_remove; + ts->base.dma_mask_get_cb = qtnf_topaz_dma_mask_get; +#ifdef CONFIG_PM_SLEEP + ts->base.resume_cb = qtnf_pcie_topaz_resume; + ts->base.suspend_cb = qtnf_pcie_topaz_suspend; +#endif + + return bus; +} diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie_ipc.h b/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie_ipc.h new file mode 100644 index 000000000..eb30e9d08 --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie_ipc.h @@ -0,0 +1,94 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* Copyright (c) 2018 Quantenna Communications */ + +#ifndef _QTN_FMAC_PCIE_IPC_H_ +#define _QTN_FMAC_PCIE_IPC_H_ + +#include <linux/types.h> + +#include "shm_ipc_defs.h" + +/* EP/RC status and flags */ +#define QTN_BDA_PCIE_INIT 0x01 +#define QTN_BDA_PCIE_RDY 0x02 +#define QTN_BDA_FW_LOAD_RDY 0x03 +#define QTN_BDA_FW_LOAD_DONE 0x04 +#define QTN_BDA_FW_START 0x05 +#define QTN_BDA_FW_RUN 0x06 +#define QTN_BDA_FW_HOST_RDY 0x07 +#define QTN_BDA_FW_TARGET_RDY 0x11 +#define QTN_BDA_FW_TARGET_BOOT 0x12 +#define QTN_BDA_FW_FLASH_BOOT 0x13 +#define QTN_BDA_FW_QLINK_DONE 0x14 +#define QTN_BDA_FW_HOST_LOAD 0x08 +#define QTN_BDA_FW_BLOCK_DONE 0x09 +#define QTN_BDA_FW_BLOCK_RDY 0x0A +#define QTN_BDA_FW_EP_RDY 0x0B +#define QTN_BDA_FW_BLOCK_END 0x0C +#define QTN_BDA_FW_CONFIG 0x0D +#define QTN_BDA_FW_RUNNING 0x0E +#define QTN_BDA_PCIE_FAIL 0x82 +#define QTN_BDA_FW_LOAD_FAIL 0x85 + +#define QTN_BDA_RCMODE BIT(1) +#define QTN_BDA_MSI BIT(2) +#define QTN_BDA_HOST_CALCMD BIT(3) +#define QTN_BDA_FLASH_PRESENT BIT(4) +#define QTN_BDA_FLASH_BOOT BIT(5) +#define QTN_BDA_XMIT_UBOOT BIT(6) +#define QTN_BDA_HOST_QLINK_DRV BIT(7) +#define QTN_BDA_TARGET_FBOOT_ERR BIT(8) +#define QTN_BDA_TARGET_FWLOAD_ERR BIT(9) +#define QTN_BDA_HOST_NOFW_ERR BIT(12) +#define QTN_BDA_HOST_MEMALLOC_ERR BIT(13) +#define QTN_BDA_HOST_MEMMAP_ERR BIT(14) +#define QTN_BDA_VER(x) (((x) >> 4) & 0xFF) +#define QTN_BDA_ERROR_MASK 0xFF00 + +/* registers and shmem address macros */ +#if BITS_PER_LONG == 64 +#define QTN_HOST_HI32(a) ((u32)(((u64)a) >> 32)) +#define QTN_HOST_LO32(a) ((u32)(((u64)a) & 0xffffffffUL)) +#define QTN_HOST_ADDR(h, l) ((((u64)h) << 32) | ((u64)l)) +#elif BITS_PER_LONG == 32 +#define QTN_HOST_HI32(a) 0 +#define QTN_HOST_LO32(a) ((u32)(((u32)a) & 0xffffffffUL)) +#define QTN_HOST_ADDR(h, l) ((u32)l) +#else +#error Unexpected BITS_PER_LONG value +#endif + +#define QTN_PCIE_BDA_VERSION 0x1001 + +#define PCIE_BDA_NAMELEN 32 + +#define QTN_PCIE_RC_TX_QUEUE_LEN 256 +#define QTN_PCIE_TX_VALID_PKT 0x80000000 +#define QTN_PCIE_PKT_LEN_MASK 0xffff + +#define QTN_BD_EMPTY ((uint32_t)0x00000001) +#define QTN_BD_WRAP ((uint32_t)0x00000002) +#define QTN_BD_MASK_LEN ((uint32_t)0xFFFF0000) +#define QTN_BD_MASK_OFFSET ((uint32_t)0x0000FF00) + +#define QTN_GET_LEN(x) (((x) >> 16) & 0xFFFF) +#define QTN_GET_OFFSET(x) (((x) >> 8) & 0xFF) +#define QTN_SET_LEN(len) (((len) & 0xFFFF) << 16) +#define QTN_SET_OFFSET(of) (((of) & 0xFF) << 8) + +#define RX_DONE_INTR_MSK ((0x1 << 6) - 1) + +#define PCIE_DMA_OFFSET_ERROR 0xFFFF +#define PCIE_DMA_OFFSET_ERROR_MASK 0xFFFF + +#define QTN_PCI_ENDIAN_DETECT_DATA 0x12345678 +#define QTN_PCI_ENDIAN_REVERSE_DATA 0x78563412 +#define QTN_PCI_ENDIAN_VALID_STATUS 0x3c3c3c3c +#define QTN_PCI_ENDIAN_INVALID_STATUS 0 +#define QTN_PCI_LITTLE_ENDIAN 0 +#define QTN_PCI_BIG_ENDIAN 0xffffffff + +#define NBLOCKS(size, blksize) \ + ((size) / (blksize) + (((size) % (blksize) > 0) ? 1 : 0)) + +#endif /* _QTN_FMAC_PCIE_IPC_H_ */ diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie_regs.h b/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie_regs.h new file mode 100644 index 000000000..4782e1ed3 --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie_regs.h @@ -0,0 +1,45 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* Copyright (c) 2018 Quantenna Communications */ + +#ifndef __TOPAZ_PCIE_H +#define __TOPAZ_PCIE_H + +/* Topaz PCIe DMA registers */ +#define PCIE_DMA_WR_INTR_STATUS(base) ((base) + 0x9bc) +#define PCIE_DMA_WR_INTR_MASK(base) ((base) + 0x9c4) +#define PCIE_DMA_WR_INTR_CLR(base) ((base) + 0x9c8) +#define PCIE_DMA_WR_ERR_STATUS(base) ((base) + 0x9cc) +#define PCIE_DMA_WR_DONE_IMWR_ADDR_LOW(base) ((base) + 0x9D0) +#define PCIE_DMA_WR_DONE_IMWR_ADDR_HIGH(base) ((base) + 0x9d4) + +#define PCIE_DMA_RD_INTR_STATUS(base) ((base) + 0x310) +#define PCIE_DMA_RD_INTR_MASK(base) ((base) + 0x319) +#define PCIE_DMA_RD_INTR_CLR(base) ((base) + 0x31c) +#define PCIE_DMA_RD_ERR_STATUS_LOW(base) ((base) + 0x324) +#define PCIE_DMA_RD_ERR_STATUS_HIGH(base) ((base) + 0x328) +#define PCIE_DMA_RD_DONE_IMWR_ADDR_LOW(base) ((base) + 0x33c) +#define PCIE_DMA_RD_DONE_IMWR_ADDR_HIGH(base) ((base) + 0x340) + +/* Topaz LHost IPC4 interrupt */ +#define TOPAZ_LH_IPC4_INT(base) ((base) + 0x13C) +#define TOPAZ_LH_IPC4_INT_MASK(base) ((base) + 0x140) + +#define TOPAZ_RC_TX_DONE_IRQ (0) +#define TOPAZ_RC_RST_EP_IRQ (1) +#define TOPAZ_RC_TX_STOP_IRQ (2) +#define TOPAZ_RC_RX_DONE_IRQ (3) +#define TOPAZ_RC_PM_EP_IRQ (4) + +/* Topaz LHost M2L interrupt */ +#define TOPAZ_CTL_M2L_INT(base) ((base) + 0x2C) +#define TOPAZ_CTL_M2L_INT_MASK(base) ((base) + 0x30) + +#define TOPAZ_RC_CTRL_IRQ (6) + +#define TOPAZ_IPC_IRQ_WORD(irq) (BIT(irq) | BIT(irq + 16)) + +/* PCIe legacy INTx */ +#define TOPAZ_PCIE_CFG0_OFFSET (0x6C) +#define TOPAZ_ASSERT_INTX BIT(9) + +#endif /* __TOPAZ_PCIE_H */ diff --git a/drivers/net/wireless/quantenna/qtnfmac/qlink.h b/drivers/net/wireless/quantenna/qtnfmac/qlink.h new file mode 100644 index 000000000..674461fa7 --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/qlink.h @@ -0,0 +1,1886 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */ + +#ifndef _QTN_QLINK_H_ +#define _QTN_QLINK_H_ + +#include <linux/ieee80211.h> + +#define QLINK_PROTO_VER_MAJOR_M 0xFFFF +#define QLINK_PROTO_VER_MAJOR_S 16 +#define QLINK_PROTO_VER_MINOR_M 0xFFFF +#define QLINK_VER_MINOR(_ver) ((_ver) & QLINK_PROTO_VER_MINOR_M) +#define QLINK_VER_MAJOR(_ver) \ + (((_ver) >> QLINK_PROTO_VER_MAJOR_S) & QLINK_PROTO_VER_MAJOR_M) +#define QLINK_VER(_maj, _min) (((_maj) << QLINK_PROTO_VER_MAJOR_S) | (_min)) + +#define QLINK_PROTO_VER_MAJOR 18 +#define QLINK_PROTO_VER_MINOR 1 +#define QLINK_PROTO_VER \ + QLINK_VER(QLINK_PROTO_VER_MAJOR, QLINK_PROTO_VER_MINOR) + +#define QLINK_ALIGN 4 + +#define QLINK_MACID_RSVD 0xFF +#define QLINK_VIFID_RSVD 0xFF + +/* Common QLINK protocol messages definitions. + */ + +/** + * enum qlink_msg_type - QLINK message types + * + * Used to distinguish between message types of QLINK protocol. + * + * @QLINK_MSG_TYPE_CMD: Message is carrying data of a command sent from + * driver to wireless hardware. + * @QLINK_MSG_TYPE_CMDRSP: Message is carrying data of a response to a command. + * Sent from wireless HW to driver in reply to previously issued command. + * @QLINK_MSG_TYPE_EVENT: Data for an event originated in wireless hardware and + * sent asynchronously to driver. + */ +enum qlink_msg_type { + QLINK_MSG_TYPE_CMD = 1, + QLINK_MSG_TYPE_CMDRSP = 2, + QLINK_MSG_TYPE_EVENT = 3 +}; + +/** + * struct qlink_msg_header - common QLINK protocol message header + * + * Portion of QLINK protocol header common for all message types. + * + * @type: Message type, one of &enum qlink_msg_type. + * @len: Total length of message including all headers. + */ +struct qlink_msg_header { + __le16 type; + __le16 len; +} __packed; + +/* Generic definitions of data and information carried in QLINK messages + */ + +/** + * enum qlink_hw_capab - device capabilities. + * + * @QLINK_HW_CAPAB_REG_UPDATE: device can update it's regulatory region. + * @QLINK_HW_CAPAB_STA_INACT_TIMEOUT: device implements a logic to kick-out + * associated STAs due to inactivity. Inactivity timeout period is taken + * from QLINK_CMD_START_AP parameters. + * @QLINK_HW_CAPAB_DFS_OFFLOAD: device implements DFS offload functionality + * @QLINK_HW_CAPAB_SCAN_RANDOM_MAC_ADDR: device supports MAC Address + * Randomization in probe requests. + * @QLINK_HW_CAPAB_OBSS_SCAN: device can perform OBSS scanning. + * @QLINK_HW_CAPAB_HW_BRIDGE: device has hardware switch capabilities. + */ +enum qlink_hw_capab { + QLINK_HW_CAPAB_REG_UPDATE = 0, + QLINK_HW_CAPAB_STA_INACT_TIMEOUT, + QLINK_HW_CAPAB_DFS_OFFLOAD, + QLINK_HW_CAPAB_SCAN_RANDOM_MAC_ADDR, + QLINK_HW_CAPAB_PWR_MGMT, + QLINK_HW_CAPAB_OBSS_SCAN, + QLINK_HW_CAPAB_SCAN_DWELL, + QLINK_HW_CAPAB_SAE, + QLINK_HW_CAPAB_HW_BRIDGE, + QLINK_HW_CAPAB_NUM +}; + +/** + * enum qlink_driver_capab - host driver capabilities. + * + */ +enum qlink_driver_capab { + QLINK_DRV_CAPAB_NUM = 0 +}; + +enum qlink_iface_type { + QLINK_IFTYPE_AP = 1, + QLINK_IFTYPE_STATION = 2, + QLINK_IFTYPE_ADHOC = 3, + QLINK_IFTYPE_MONITOR = 4, + QLINK_IFTYPE_WDS = 5, + QLINK_IFTYPE_AP_VLAN = 6, +}; + +/** + * struct qlink_intf_info - information on virtual interface. + * + * Data describing a single virtual interface. + * + * @if_type: Mode of interface operation, one of &enum qlink_iface_type + * @vlanid: VLAN ID for AP_VLAN interface type + * @mac_addr: MAC address of virtual interface. + */ +struct qlink_intf_info { + __le16 if_type; + __le16 vlanid; + u8 mac_addr[ETH_ALEN]; + u8 use4addr; + u8 rsvd[1]; +} __packed; + +enum qlink_sta_flags { + QLINK_STA_FLAG_INVALID = 0, + QLINK_STA_FLAG_AUTHORIZED = BIT(0), + QLINK_STA_FLAG_SHORT_PREAMBLE = BIT(1), + QLINK_STA_FLAG_WME = BIT(2), + QLINK_STA_FLAG_MFP = BIT(3), + QLINK_STA_FLAG_AUTHENTICATED = BIT(4), + QLINK_STA_FLAG_TDLS_PEER = BIT(5), + QLINK_STA_FLAG_ASSOCIATED = BIT(6), +}; + +enum qlink_channel_width { + QLINK_CHAN_WIDTH_5 = 0, + QLINK_CHAN_WIDTH_10, + QLINK_CHAN_WIDTH_20_NOHT, + QLINK_CHAN_WIDTH_20, + QLINK_CHAN_WIDTH_40, + QLINK_CHAN_WIDTH_80, + QLINK_CHAN_WIDTH_80P80, + QLINK_CHAN_WIDTH_160, +}; + +/** + * struct qlink_channel - qlink control channel definition + * + * @hw_value: hardware-specific value for the channel + * @center_freq: center frequency in MHz + * @flags: channel flags from &enum qlink_channel_flags + * @band: band this channel belongs to + * @max_antenna_gain: maximum antenna gain in dBi + * @max_power: maximum transmission power (in dBm) + * @max_reg_power: maximum regulatory transmission power (in dBm) + * @dfs_state: current state of this channel. + * Only relevant if radar is required on this channel. + * @beacon_found: helper to regulatory code to indicate when a beacon + * has been found on this channel. Use regulatory_hint_found_beacon() + * to enable this, this is useful only on 5 GHz band. + */ +struct qlink_channel { + __le16 hw_value; + __le16 center_freq; + __le32 flags; + u8 band; + u8 max_antenna_gain; + u8 max_power; + u8 max_reg_power; + __le32 dfs_cac_ms; + u8 dfs_state; + u8 beacon_found; + u8 rsvd[2]; +} __packed; + +/** + * struct qlink_chandef - qlink channel definition + * + * @chan: primary channel definition + * @center_freq1: center frequency of first segment + * @center_freq2: center frequency of second segment (80+80 only) + * @width: channel width, one of @enum qlink_channel_width + */ +struct qlink_chandef { + struct qlink_channel chan; + __le16 center_freq1; + __le16 center_freq2; + u8 width; + u8 rsvd[3]; +} __packed; + +#define QLINK_MAX_NR_CIPHER_SUITES 5 +#define QLINK_MAX_NR_AKM_SUITES 2 + +struct qlink_auth_encr { + __le32 wpa_versions; + __le32 cipher_group; + __le32 n_ciphers_pairwise; + __le32 ciphers_pairwise[QLINK_MAX_NR_CIPHER_SUITES]; + __le32 n_akm_suites; + __le32 akm_suites[QLINK_MAX_NR_AKM_SUITES]; + __le16 control_port_ethertype; + u8 auth_type; + u8 privacy; + u8 control_port; + u8 control_port_no_encrypt; + u8 rsvd[2]; +} __packed; + +/** + * struct qlink_sta_info_state - station flags mask/value + * + * @mask: STA flags mask, bitmap of &enum qlink_sta_flags + * @value: STA flags values, bitmap of &enum qlink_sta_flags + */ +struct qlink_sta_info_state { + __le32 mask; + __le32 value; +} __packed; + +/** + * enum qlink_sr_ctrl_flags - control flags for spatial reuse parameter set + * + * @QLINK_SR_PSR_DISALLOWED: indicates whether or not PSR-based spatial reuse + * transmissions are allowed for STAs associated with the AP + * @QLINK_SR_NON_SRG_OBSS_PD_SR_DISALLOWED: indicates whether or not + * Non-SRG OBSS PD spatial reuse transmissions are allowed for STAs associated + * with the AP + * @NON_SRG_OFFSET_PRESENT: indicates whether or not Non-SRG OBSS PD Max offset + * field is valid in the element + * @QLINK_SR_SRG_INFORMATION_PRESENT: indicates whether or not SRG OBSS PD + * Min/Max offset fields ore valid in the element + */ +enum qlink_sr_ctrl_flags { + QLINK_SR_PSR_DISALLOWED = BIT(0), + QLINK_SR_NON_SRG_OBSS_PD_SR_DISALLOWED = BIT(1), + QLINK_SR_NON_SRG_OFFSET_PRESENT = BIT(2), + QLINK_SR_SRG_INFORMATION_PRESENT = BIT(3), +}; + +/** + * struct qlink_sr_params - spatial reuse parameters + * + * @sr_control: spatial reuse control field; flags contained in this field are + * defined in @qlink_sr_ctrl_flags + * @non_srg_obss_pd_max: added to -82 dBm to generate the value of the + * Non-SRG OBSS PD Max parameter + * @srg_obss_pd_min_offset: added to -82 dBm to generate the value of the + * SRG OBSS PD Min parameter + * @srg_obss_pd_max_offset: added to -82 dBm to generate the value of the + * SRG PBSS PD Max parameter + */ +struct qlink_sr_params { + u8 sr_control; + u8 non_srg_obss_pd_max; + u8 srg_obss_pd_min_offset; + u8 srg_obss_pd_max_offset; +} __packed; + +/* QLINK Command messages related definitions + */ + +/** + * enum qlink_cmd_type - list of supported commands + * + * Commands are QLINK messages of type @QLINK_MSG_TYPE_CMD, sent by driver to + * wireless network device for processing. Device is expected to send back a + * reply message of type &QLINK_MSG_TYPE_CMDRSP, containing at least command + * execution status (one of &enum qlink_cmd_result). Reply message + * may also contain data payload specific to the command type. + * + * @QLINK_CMD_SEND_FRAME: send specified frame over the air; firmware will + * encapsulate 802.3 packet into 802.11 frame automatically. + * @QLINK_CMD_BAND_INFO_GET: for the specified MAC and specified band, get + * the band's description including number of operational channels and + * info on each channel, HT/VHT capabilities, supported rates etc. + * This command is generic to a specified MAC, interface index must be set + * to QLINK_VIFID_RSVD in command header. + * @QLINK_CMD_REG_NOTIFY: notify device about regulatory domain change. This + * command is supported only if device reports QLINK_HW_SUPPORTS_REG_UPDATE + * capability. + * @QLINK_CMD_START_CAC: start radar detection procedure on a specified channel. + * @QLINK_CMD_TXPWR: get or set current channel transmit power for + * the specified MAC. + * @QLINK_CMD_NDEV_EVENT: signalizes changes made with a corresponding network + * device. + */ +enum qlink_cmd_type { + QLINK_CMD_FW_INIT = 0x0001, + QLINK_CMD_FW_DEINIT = 0x0002, + QLINK_CMD_REGISTER_MGMT = 0x0003, + QLINK_CMD_SEND_FRAME = 0x0004, + QLINK_CMD_MGMT_SET_APPIE = 0x0005, + QLINK_CMD_PHY_PARAMS_SET = 0x0012, + QLINK_CMD_GET_HW_INFO = 0x0013, + QLINK_CMD_MAC_INFO = 0x0014, + QLINK_CMD_ADD_INTF = 0x0015, + QLINK_CMD_DEL_INTF = 0x0016, + QLINK_CMD_CHANGE_INTF = 0x0017, + QLINK_CMD_UPDOWN_INTF = 0x0018, + QLINK_CMD_REG_NOTIFY = 0x0019, + QLINK_CMD_BAND_INFO_GET = 0x001A, + QLINK_CMD_CHAN_SWITCH = 0x001B, + QLINK_CMD_CHAN_GET = 0x001C, + QLINK_CMD_START_CAC = 0x001D, + QLINK_CMD_START_AP = 0x0021, + QLINK_CMD_STOP_AP = 0x0022, + QLINK_CMD_SET_MAC_ACL = 0x0023, + QLINK_CMD_GET_STA_INFO = 0x0030, + QLINK_CMD_ADD_KEY = 0x0040, + QLINK_CMD_DEL_KEY = 0x0041, + QLINK_CMD_SET_DEFAULT_KEY = 0x0042, + QLINK_CMD_SET_DEFAULT_MGMT_KEY = 0x0043, + QLINK_CMD_CHANGE_STA = 0x0051, + QLINK_CMD_DEL_STA = 0x0052, + QLINK_CMD_SCAN = 0x0053, + QLINK_CMD_CHAN_STATS = 0x0054, + QLINK_CMD_NDEV_EVENT = 0x0055, + QLINK_CMD_CONNECT = 0x0060, + QLINK_CMD_DISCONNECT = 0x0061, + QLINK_CMD_PM_SET = 0x0062, + QLINK_CMD_WOWLAN_SET = 0x0063, + QLINK_CMD_EXTERNAL_AUTH = 0x0066, + QLINK_CMD_TXPWR = 0x0067, + QLINK_CMD_UPDATE_OWE = 0x0068, +}; + +/** + * struct qlink_cmd - QLINK command message header + * + * Header used for QLINK messages of QLINK_MSG_TYPE_CMD type. + * + * @mhdr: Common QLINK message header. + * @cmd_id: command id, one of &enum qlink_cmd_type. + * @seq_num: sequence number of command message, used for matching with + * response message. + * @macid: index of physical radio device the command is destined to or + * QLINK_MACID_RSVD if not applicable. + * @vifid: index of virtual wireless interface on specified @macid the command + * is destined to or QLINK_VIFID_RSVD if not applicable. + */ +struct qlink_cmd { + struct qlink_msg_header mhdr; + __le16 cmd_id; + __le16 seq_num; + u8 macid; + u8 vifid; + u8 rsvd[2]; +} __packed; + +/** + * struct qlink_cmd_init_fw - data for QLINK_CMD_FW_INIT + * + * Initialize firmware based on specified host configuration. This is the first + * command sent to wifi card and it's fixed part should never be changed, any + * additions must be done by appending TLVs. + * If wifi card can not operate with a specified parameters it will return + * error. + * + * @qlink_proto_ver: QLINK protocol version used by host driver. + */ +struct qlink_cmd_init_fw { + struct qlink_cmd chdr; + __le32 qlink_proto_ver; + u8 var_info[]; +} __packed; + +/** + * struct qlink_cmd_manage_intf - interface management command + * + * Data for interface management commands QLINK_CMD_ADD_INTF, QLINK_CMD_DEL_INTF + * and QLINK_CMD_CHANGE_INTF. + * + * @intf_info: interface description. + */ +struct qlink_cmd_manage_intf { + struct qlink_cmd chdr; + struct qlink_intf_info intf_info; +} __packed; + +enum qlink_mgmt_frame_type { + QLINK_MGMT_FRAME_ASSOC_REQ = 0x00, + QLINK_MGMT_FRAME_ASSOC_RESP = 0x01, + QLINK_MGMT_FRAME_REASSOC_REQ = 0x02, + QLINK_MGMT_FRAME_REASSOC_RESP = 0x03, + QLINK_MGMT_FRAME_PROBE_REQ = 0x04, + QLINK_MGMT_FRAME_PROBE_RESP = 0x05, + QLINK_MGMT_FRAME_BEACON = 0x06, + QLINK_MGMT_FRAME_ATIM = 0x07, + QLINK_MGMT_FRAME_DISASSOC = 0x08, + QLINK_MGMT_FRAME_AUTH = 0x09, + QLINK_MGMT_FRAME_DEAUTH = 0x0A, + QLINK_MGMT_FRAME_ACTION = 0x0B, + + QLINK_MGMT_FRAME_TYPE_COUNT +}; + +/** + * struct qlink_cmd_mgmt_frame_register - data for QLINK_CMD_REGISTER_MGMT + * + * @frame_type: MGMT frame type the registration request describes, one of + * &enum qlink_mgmt_frame_type. + * @do_register: 0 - unregister, otherwise register for reception of specified + * MGMT frame type. + */ +struct qlink_cmd_mgmt_frame_register { + struct qlink_cmd chdr; + __le16 frame_type; + u8 do_register; + u8 rsvd[1]; +} __packed; + +/** + * @QLINK_FRAME_TX_FLAG_8023: frame has a 802.3 header; if not set, frame + * is a 802.11 encapsulated. + */ +enum qlink_frame_tx_flags { + QLINK_FRAME_TX_FLAG_OFFCHAN = BIT(0), + QLINK_FRAME_TX_FLAG_NO_CCK = BIT(1), + QLINK_FRAME_TX_FLAG_ACK_NOWAIT = BIT(2), + QLINK_FRAME_TX_FLAG_8023 = BIT(3), +}; + +/** + * struct qlink_cmd_frame_tx - data for QLINK_CMD_SEND_FRAME command + * + * @cookie: opaque request identifier. + * @freq: Frequency to use for frame transmission. + * @flags: Transmission flags, one of &enum qlink_frame_tx_flags. + * @frame_data: frame to transmit. + */ +struct qlink_cmd_frame_tx { + struct qlink_cmd chdr; + __le32 cookie; + __le16 freq; + __le16 flags; + u8 frame_data[]; +} __packed; + +/** + * struct qlink_cmd_get_sta_info - data for QLINK_CMD_GET_STA_INFO command + * + * @sta_addr: MAC address of the STA statistics is requested for. + */ +struct qlink_cmd_get_sta_info { + struct qlink_cmd chdr; + u8 sta_addr[ETH_ALEN]; + u8 rsvd[2]; +} __packed; + +/** + * struct qlink_cmd_add_key - data for QLINK_CMD_ADD_KEY command. + * + * @key_index: index of the key being installed. + * @pairwise: whether to use pairwise key. + * @addr: MAC address of a STA key is being installed to. + * @cipher: cipher suite. + * @vlanid: VLAN ID for AP_VLAN interface type + * @key_data: key data itself. + */ +struct qlink_cmd_add_key { + struct qlink_cmd chdr; + u8 key_index; + u8 pairwise; + u8 addr[ETH_ALEN]; + __le32 cipher; + __le16 vlanid; + u8 rsvd[2]; + u8 key_data[]; +} __packed; + +/** + * struct qlink_cmd_del_key_req - data for QLINK_CMD_DEL_KEY command + * + * @key_index: index of the key being removed. + * @pairwise: whether to use pairwise key. + * @addr: MAC address of a STA for which a key is removed. + */ +struct qlink_cmd_del_key { + struct qlink_cmd chdr; + u8 key_index; + u8 pairwise; + u8 addr[ETH_ALEN]; +} __packed; + +/** + * struct qlink_cmd_set_def_key - data for QLINK_CMD_SET_DEFAULT_KEY command + * + * @key_index: index of the key to be set as default one. + * @unicast: key is unicast. + * @multicast: key is multicast. + */ +struct qlink_cmd_set_def_key { + struct qlink_cmd chdr; + u8 key_index; + u8 unicast; + u8 multicast; + u8 rsvd[1]; +} __packed; + +/** + * struct qlink_cmd_set_def_mgmt_key - data for QLINK_CMD_SET_DEFAULT_MGMT_KEY + * + * @key_index: index of the key to be set as default MGMT key. + */ +struct qlink_cmd_set_def_mgmt_key { + struct qlink_cmd chdr; + u8 key_index; + u8 rsvd[3]; +} __packed; + +/** + * struct qlink_cmd_change_sta - data for QLINK_CMD_CHANGE_STA command + * + * @flag_update: STA flags to update + * @if_type: Mode of interface operation, one of &enum qlink_iface_type + * @vlanid: VLAN ID to assign to specific STA + * @sta_addr: address of the STA for which parameters are set. + */ +struct qlink_cmd_change_sta { + struct qlink_cmd chdr; + struct qlink_sta_info_state flag_update; + __le16 if_type; + __le16 vlanid; + u8 sta_addr[ETH_ALEN]; + u8 rsvd[2]; +} __packed; + +/** + * struct qlink_cmd_del_sta - data for QLINK_CMD_DEL_STA command. + * + * See &struct station_del_parameters + */ +struct qlink_cmd_del_sta { + struct qlink_cmd chdr; + __le16 reason_code; + u8 sta_addr[ETH_ALEN]; + u8 subtype; + u8 rsvd[3]; +} __packed; + +enum qlink_sta_connect_flags { + QLINK_STA_CONNECT_DISABLE_HT = BIT(0), + QLINK_STA_CONNECT_DISABLE_VHT = BIT(1), + QLINK_STA_CONNECT_USE_RRM = BIT(2), +}; + +/** + * struct qlink_cmd_connect - data for QLINK_CMD_CONNECT command + * + * @bssid: BSSID of the BSS to connect to. + * @bssid_hint: recommended AP BSSID for initial connection to the BSS or + * 00:00:00:00:00:00 if not specified. + * @prev_bssid: previous BSSID, if specified (not 00:00:00:00:00:00) indicates + * a request to reassociate. + * @bg_scan_period: period of background scan. + * @flags: one of &enum qlink_sta_connect_flags. + * @ht_capa: HT Capabilities overrides. + * @ht_capa_mask: The bits of ht_capa which are to be used. + * @vht_capa: VHT Capability overrides + * @vht_capa_mask: The bits of vht_capa which are to be used. + * @aen: authentication information. + * @mfp: whether to use management frame protection. + * @payload: variable portion of connection request. + */ +struct qlink_cmd_connect { + struct qlink_cmd chdr; + u8 bssid[ETH_ALEN]; + u8 bssid_hint[ETH_ALEN]; + u8 prev_bssid[ETH_ALEN]; + __le16 bg_scan_period; + __le32 flags; + struct ieee80211_ht_cap ht_capa; + struct ieee80211_ht_cap ht_capa_mask; + struct ieee80211_vht_cap vht_capa; + struct ieee80211_vht_cap vht_capa_mask; + struct qlink_auth_encr aen; + u8 mfp; + u8 pbss; + u8 rsvd[2]; + u8 payload[]; +} __packed; + +/** + * struct qlink_cmd_external_auth - data for QLINK_CMD_EXTERNAL_AUTH command + * + * @bssid: BSSID of the BSS to connect to + * @status: authentication status code + * @payload: variable portion of connection request. + */ +struct qlink_cmd_external_auth { + struct qlink_cmd chdr; + u8 peer[ETH_ALEN]; + __le16 status; + u8 payload[]; +} __packed; + +/** + * struct qlink_cmd_disconnect - data for QLINK_CMD_DISCONNECT command + * + * @reason: code of the reason of disconnect, see &enum ieee80211_reasoncode. + */ +struct qlink_cmd_disconnect { + struct qlink_cmd chdr; + __le16 reason; + u8 rsvd[2]; +} __packed; + +/** + * struct qlink_cmd_updown - data for QLINK_CMD_UPDOWN_INTF command + * + * @if_up: bring specified interface DOWN (if_up==0) or UP (otherwise). + * Interface is specified in common command header @chdr. + */ +struct qlink_cmd_updown { + struct qlink_cmd chdr; + u8 if_up; + u8 rsvd[3]; +} __packed; + +/** + * enum qlink_band - a list of frequency bands + * + * @QLINK_BAND_2GHZ: 2.4GHz band + * @QLINK_BAND_5GHZ: 5GHz band + * @QLINK_BAND_60GHZ: 60GHz band + */ +enum qlink_band { + QLINK_BAND_2GHZ = BIT(0), + QLINK_BAND_5GHZ = BIT(1), + QLINK_BAND_60GHZ = BIT(2), +}; + +/** + * struct qlink_cmd_band_info_get - data for QLINK_CMD_BAND_INFO_GET command + * + * @band: a PHY band for which information is queried, one of @enum qlink_band + */ +struct qlink_cmd_band_info_get { + struct qlink_cmd chdr; + u8 band; + u8 rsvd[3]; +} __packed; + +/** + * struct qlink_cmd_get_chan_stats - data for QLINK_CMD_CHAN_STATS command + * + * @channel_freq: channel center frequency + */ +struct qlink_cmd_get_chan_stats { + struct qlink_cmd chdr; + __le32 channel_freq; +} __packed; + +/** + * enum qlink_reg_initiator - Indicates the initiator of a reg domain request + * + * See &enum nl80211_reg_initiator for more info. + */ +enum qlink_reg_initiator { + QLINK_REGDOM_SET_BY_CORE, + QLINK_REGDOM_SET_BY_USER, + QLINK_REGDOM_SET_BY_DRIVER, + QLINK_REGDOM_SET_BY_COUNTRY_IE, +}; + +/** + * enum qlink_user_reg_hint_type - type of user regulatory hint + * + * See &enum nl80211_user_reg_hint_type for more info. + */ +enum qlink_user_reg_hint_type { + QLINK_USER_REG_HINT_USER = 0, + QLINK_USER_REG_HINT_CELL_BASE = 1, + QLINK_USER_REG_HINT_INDOOR = 2, +}; + +/** + * struct qlink_cmd_reg_notify - data for QLINK_CMD_REG_NOTIFY command + * + * @alpha2: the ISO / IEC 3166 alpha2 country code. + * @initiator: which entity sent the request, one of &enum qlink_reg_initiator. + * @user_reg_hint_type: type of hint for QLINK_REGDOM_SET_BY_USER request, one + * of &enum qlink_user_reg_hint_type. + * @num_channels: number of &struct qlink_tlv_channel in a variable portion of a + * payload. + * @dfs_region: one of &enum qlink_dfs_regions. + * @slave_radar: whether slave device should enable radar detection. + * @dfs_offload: enable or disable DFS offload to firmware. + * @info: variable portion of regulatory notifier callback. + */ +struct qlink_cmd_reg_notify { + struct qlink_cmd chdr; + u8 alpha2[2]; + u8 initiator; + u8 user_reg_hint_type; + u8 num_channels; + u8 dfs_region; + u8 slave_radar; + u8 dfs_offload; + u8 info[]; +} __packed; + +/** + * enum qlink_chan_sw_flags - channel switch control flags + * + * @QLINK_CHAN_SW_RADAR_REQUIRED: whether radar detection is required on a new + * channel. + * @QLINK_CHAN_SW_BLOCK_TX: whether transmissions should be blocked while + * changing a channel. + */ +enum qlink_chan_sw_flags { + QLINK_CHAN_SW_RADAR_REQUIRED = BIT(0), + QLINK_CHAN_SW_BLOCK_TX = BIT(1), +}; + +/** + * struct qlink_cmd_chan_switch - data for QLINK_CMD_CHAN_SWITCH command + * + * @channel: channel to switch to. + * @flags: flags to control channel switch, bitmap of &enum qlink_chan_sw_flags. + * @beacon_count: number of beacons until switch + */ +struct qlink_cmd_chan_switch { + struct qlink_cmd chdr; + struct qlink_chandef channel; + __le64 flags; + __le32 n_counter_offsets_beacon; + __le32 n_counter_offsets_presp; + u8 beacon_count; + u8 rsvd[3]; +} __packed; + +/** + * enum qlink_hidden_ssid - values for %NL80211_ATTR_HIDDEN_SSID + * + * Refer to &enum nl80211_hidden_ssid + */ +enum qlink_hidden_ssid { + QLINK_HIDDEN_SSID_NOT_IN_USE, + QLINK_HIDDEN_SSID_ZERO_LEN, + QLINK_HIDDEN_SSID_ZERO_CONTENTS +}; + +/** + * struct qlink_cmd_start_ap - data for QLINK_CMD_START_AP command + * + * @beacon_interval: beacon interval + * @inactivity_timeout: station's inactivity period in seconds + * @dtim_period: DTIM period + * @hidden_ssid: whether to hide the SSID, one of &enum qlink_hidden_ssid + * @smps_mode: SMPS mode + * @ht_required: stations must support HT + * @vht_required: stations must support VHT + * @aen: encryption info + * @sr_params: spatial reuse parameters + * @twt_responder: enable Target Wake Time + * @info: variable configurations + */ +struct qlink_cmd_start_ap { + struct qlink_cmd chdr; + __le16 beacon_interval; + __le16 inactivity_timeout; + u8 dtim_period; + u8 hidden_ssid; + u8 smps_mode; + u8 p2p_ctwindow; + u8 p2p_opp_ps; + u8 pbss; + u8 ht_required; + u8 vht_required; + struct qlink_auth_encr aen; + struct qlink_sr_params sr_params; + u8 twt_responder; + u8 rsvd[3]; + u8 info[]; +} __packed; + +/** + * struct qlink_cmd_start_cac - data for QLINK_CMD_START_CAC command + * + * @chan: a channel to start a radar detection procedure on. + * @cac_time_ms: CAC time. + */ +struct qlink_cmd_start_cac { + struct qlink_cmd chdr; + struct qlink_chandef chan; + __le32 cac_time_ms; +} __packed; + +enum qlink_acl_policy { + QLINK_ACL_POLICY_ACCEPT_UNLESS_LISTED, + QLINK_ACL_POLICY_DENY_UNLESS_LISTED, +}; + +struct qlink_mac_address { + u8 addr[ETH_ALEN]; +} __packed; + +/** + * struct qlink_acl_data - ACL data + * + * @policy: filter policy, one of &enum qlink_acl_policy. + * @num_entries: number of MAC addresses in array. + * @mac_address: MAC addresses array. + */ +struct qlink_acl_data { + __le32 policy; + __le32 num_entries; + struct qlink_mac_address mac_addrs[]; +} __packed; + +/** + * enum qlink_pm_mode - Power Management mode + * + * @QLINK_PM_OFF: normal mode, no power saving enabled + * @QLINK_PM_AUTO_STANDBY: enable auto power save mode + */ +enum qlink_pm_mode { + QLINK_PM_OFF = 0, + QLINK_PM_AUTO_STANDBY = 1, +}; + +/** + * struct qlink_cmd_pm_set - data for QLINK_CMD_PM_SET command + * + * @pm_standby timer: period of network inactivity in seconds before + * putting a radio in power save mode + * @pm_mode: power management mode + */ +struct qlink_cmd_pm_set { + struct qlink_cmd chdr; + __le32 pm_standby_timer; + u8 pm_mode; + u8 rsvd[3]; +} __packed; + +/** + * enum qlink_txpwr_op - transmit power operation type + * @QLINK_TXPWR_SET: set tx power + * @QLINK_TXPWR_GET: get current tx power setting + */ +enum qlink_txpwr_op { + QLINK_TXPWR_SET, + QLINK_TXPWR_GET +}; + +/** + * struct qlink_cmd_txpwr - get or set current transmit power + * + * @txpwr: new transmit power setting, in mBm + * @txpwr_setting: transmit power setting type, one of + * &enum nl80211_tx_power_setting + * @op_type: type of operation, one of &enum qlink_txpwr_op + */ +struct qlink_cmd_txpwr { + struct qlink_cmd chdr; + __le32 txpwr; + u8 txpwr_setting; + u8 op_type; + u8 rsvd[2]; +} __packed; + +/** + * enum qlink_wowlan_trigger + * + * @QLINK_WOWLAN_TRIG_DISCONNECT: wakeup on disconnect + * @QLINK_WOWLAN_TRIG_MAGIC_PKT: wakeup on magic packet + * @QLINK_WOWLAN_TRIG_PATTERN_PKT: wakeup on user-defined packet + */ +enum qlink_wowlan_trigger { + QLINK_WOWLAN_TRIG_DISCONNECT = BIT(0), + QLINK_WOWLAN_TRIG_MAGIC_PKT = BIT(1), + QLINK_WOWLAN_TRIG_PATTERN_PKT = BIT(2), +}; + +/** + * struct qlink_cmd_wowlan_set - data for QLINK_CMD_WOWLAN_SET command + * + * @triggers: requested bitmask of WoWLAN triggers + */ +struct qlink_cmd_wowlan_set { + struct qlink_cmd chdr; + __le32 triggers; + u8 data[]; +} __packed; + +enum qlink_ndev_event_type { + QLINK_NDEV_EVENT_CHANGEUPPER, +}; + +/** + * struct qlink_cmd_ndev_event - data for QLINK_CMD_NDEV_EVENT command + * + * @event: type of event, one of &enum qlink_ndev_event_type + */ +struct qlink_cmd_ndev_event { + struct qlink_cmd chdr; + __le16 event; + u8 rsvd[2]; +} __packed; + +enum qlink_ndev_upper_type { + QLINK_NDEV_UPPER_TYPE_NONE, + QLINK_NDEV_UPPER_TYPE_BRIDGE, +}; + +/** + * struct qlink_cmd_ndev_changeupper - data for QLINK_NDEV_EVENT_CHANGEUPPER + * + * @br_domain: layer 2 broadcast domain ID that ndev is a member of + * @upper_type: type of upper device, one of &enum qlink_ndev_upper_type + */ +struct qlink_cmd_ndev_changeupper { + struct qlink_cmd_ndev_event nehdr; + __le64 flags; + __le32 br_domain; + __le32 netspace_id; + __le16 vlanid; + u8 upper_type; + u8 rsvd[1]; +} __packed; + +/** + * enum qlink_scan_flags - scan request control flags + * + * Scan flags are used to control QLINK_CMD_SCAN behavior. + * + * @QLINK_SCAN_FLAG_FLUSH: flush cache before scanning. + */ +enum qlink_scan_flags { + QLINK_SCAN_FLAG_FLUSH = BIT(0), + QLINK_SCAN_FLAG_DURATION_MANDATORY = BIT(1), +}; + +/** + * struct qlink_cmd_scan - data for QLINK_CMD_SCAN command + * + * @flags: scan flags, a bitmap of &enum qlink_scan_flags. + * @n_ssids: number of WLAN_EID_SSID TLVs expected in variable portion of the + * command. + * @n_channels: number of QTN_TLV_ID_CHANNEL TLVs expected in variable payload. + * @active_dwell: time spent on a single channel for an active scan. + * @passive_dwell: time spent on a single channel for a passive scan. + * @sample_duration: total duration of sampling a single channel during a scan + * including off-channel dwell time and operating channel time. + * @bssid: specific BSSID to scan for or a broadcast BSSID. + * @scan_width: channel width to use, one of &enum qlink_channel_width. + */ +struct qlink_cmd_scan { + struct qlink_cmd chdr; + __le64 flags; + __le16 n_ssids; + __le16 n_channels; + __le16 active_dwell; + __le16 passive_dwell; + __le16 sample_duration; + u8 bssid[ETH_ALEN]; + u8 scan_width; + u8 rsvd[3]; + u8 var_info[]; +} __packed; + +/** + * struct qlink_cmd_update_owe - data for QLINK_CMD_UPDATE_OWE_INFO command + * + * @peer: MAC of the peer device for which OWE processing has been completed + * @status: OWE external processing status code + * @ies: IEs for the peer constructed by the user space + */ +struct qlink_cmd_update_owe { + struct qlink_cmd chdr; + u8 peer[ETH_ALEN]; + __le16 status; + u8 ies[]; +} __packed; + +/* QLINK Command Responses messages related definitions + */ + +enum qlink_cmd_result { + QLINK_CMD_RESULT_OK = 0, + QLINK_CMD_RESULT_INVALID, + QLINK_CMD_RESULT_ENOTSUPP, + QLINK_CMD_RESULT_ENOTFOUND, + QLINK_CMD_RESULT_EALREADY, + QLINK_CMD_RESULT_EADDRINUSE, + QLINK_CMD_RESULT_EADDRNOTAVAIL, + QLINK_CMD_RESULT_EBUSY, +}; + +/** + * struct qlink_resp - QLINK command response message header + * + * Header used for QLINK messages of QLINK_MSG_TYPE_CMDRSP type. + * + * @mhdr: see &struct qlink_msg_header. + * @cmd_id: command ID the response corresponds to, one of &enum qlink_cmd_type. + * @seq_num: sequence number of command message, used for matching with + * response message. + * @result: result of the command execution, one of &enum qlink_cmd_result. + * @macid: index of physical radio device the response is sent from or + * QLINK_MACID_RSVD if not applicable. + * @vifid: index of virtual wireless interface on specified @macid the response + * is sent from or QLINK_VIFID_RSVD if not applicable. + */ +struct qlink_resp { + struct qlink_msg_header mhdr; + __le16 cmd_id; + __le16 seq_num; + __le16 result; + u8 macid; + u8 vifid; +} __packed; + +/** + * struct qlink_resp_init_fw - response for QLINK_CMD_FW_INIT + * + * @qlink_proto_ver: QLINK protocol version used by wifi card firmware. + */ +struct qlink_resp_init_fw { + struct qlink_resp rhdr; + __le32 qlink_proto_ver; +} __packed; + +/** + * enum qlink_dfs_regions - regulatory DFS regions + * + * Corresponds to &enum nl80211_dfs_regions. + */ +enum qlink_dfs_regions { + QLINK_DFS_UNSET = 0, + QLINK_DFS_FCC = 1, + QLINK_DFS_ETSI = 2, + QLINK_DFS_JP = 3, +}; + +/** + * struct qlink_resp_get_mac_info - response for QLINK_CMD_MAC_INFO command + * + * Data describing specific physical device providing wireless MAC + * functionality. + * + * @dev_mac: MAC address of physical WMAC device (used for first BSS on + * specified WMAC). + * @num_tx_chain: Number of transmit chains used by WMAC. + * @num_rx_chain: Number of receive chains used by WMAC. + * @vht_cap_mod_mask: mask specifying which VHT capabilities can be altered. + * @ht_cap_mod_mask: mask specifying which HT capabilities can be altered. + * @max_scan_ssids: maximum number of SSIDs the device can scan for in any scan. + * @bands_cap: wireless bands WMAC can operate in, bitmap of &enum qlink_band. + * @max_ap_assoc_sta: Maximum number of associations supported by WMAC. + * @radar_detect_widths: bitmask of channels BW for which WMAC can detect radar. + * @alpha2: country code ID firmware is configured to. + * @n_reg_rules: number of regulatory rules TLVs in variable portion of the + * message. + * @dfs_region: regulatory DFS region, one of &enum qlink_dfs_regions. + * @var_info: variable-length WMAC info data. + */ +struct qlink_resp_get_mac_info { + struct qlink_resp rhdr; + u8 dev_mac[ETH_ALEN]; + u8 num_tx_chain; + u8 num_rx_chain; + struct ieee80211_vht_cap vht_cap_mod_mask; + struct ieee80211_ht_cap ht_cap_mod_mask; + + __le16 max_ap_assoc_sta; + __le32 hw_version; + __le32 probe_resp_offload; + __le32 bss_select_support; + __le16 n_addresses; + __le16 radar_detect_widths; + __le16 max_remain_on_channel_duration; + __le16 max_acl_mac_addrs; + + __le32 frag_threshold; + __le32 rts_threshold; + u8 retry_short; + u8 retry_long; + u8 coverage_class; + + u8 max_scan_ssids; + u8 max_sched_scan_reqs; + u8 max_sched_scan_ssids; + u8 max_match_sets; + u8 max_adj_channel_rssi_comp; + + __le16 max_scan_ie_len; + __le16 max_sched_scan_ie_len; + __le32 max_sched_scan_plans; + __le32 max_sched_scan_plan_interval; + __le32 max_sched_scan_plan_iterations; + + u8 n_cipher_suites; + u8 n_akm_suites; + u8 max_num_pmkids; + u8 num_iftype_ext_capab; + u8 extended_capabilities_len; + u8 max_data_retry_count; + u8 n_iface_combinations; + u8 max_num_csa_counters; + + u8 bands_cap; + u8 alpha2[2]; + u8 n_reg_rules; + u8 dfs_region; + u8 rsvd[3]; + u8 var_info[]; +} __packed; + +/** + * struct qlink_resp_get_hw_info - response for QLINK_CMD_GET_HW_INFO command + * + * Description of wireless hardware capabilities and features. + * + * @fw_ver: wireless hardware firmware version. + * @num_mac: Number of separate physical radio devices provided by hardware. + * @mac_bitmap: Bitmap of MAC IDs that are active and can be used in firmware. + * @total_tx_chains: total number of transmit chains used by device. + * @total_rx_chains: total number of receive chains. + * @info: variable-length HW info. + */ +struct qlink_resp_get_hw_info { + struct qlink_resp rhdr; + __le32 fw_ver; + __le32 bld_tmstamp; + __le32 plat_id; + __le32 hw_ver; + u8 num_mac; + u8 mac_bitmap; + u8 total_tx_chain; + u8 total_rx_chain; + u8 info[]; +} __packed; + +/** + * struct qlink_resp_manage_intf - response for interface management commands + * + * Response data for QLINK_CMD_ADD_INTF and QLINK_CMD_CHANGE_INTF commands. + * + * @rhdr: Common Command Response message header. + * @intf_info: interface description. + */ +struct qlink_resp_manage_intf { + struct qlink_resp rhdr; + struct qlink_intf_info intf_info; +} __packed; + +enum qlink_sta_info_rate_flags { + QLINK_STA_INFO_RATE_FLAG_HT_MCS = BIT(0), + QLINK_STA_INFO_RATE_FLAG_VHT_MCS = BIT(1), + QLINK_STA_INFO_RATE_FLAG_SHORT_GI = BIT(2), + QLINK_STA_INFO_RATE_FLAG_60G = BIT(3), + QLINK_STA_INFO_RATE_FLAG_HE_MCS = BIT(4), +}; + +/** + * struct qlink_resp_get_sta_info - response for QLINK_CMD_GET_STA_INFO command + * + * Response data containing statistics for specified STA. + * + * @sta_addr: MAC address of STA the response carries statistic for. + * @info: variable statistics for specified STA. + */ +struct qlink_resp_get_sta_info { + struct qlink_resp rhdr; + u8 sta_addr[ETH_ALEN]; + u8 rsvd[2]; + u8 info[]; +} __packed; + +/** + * struct qlink_resp_band_info_get - response for QLINK_CMD_BAND_INFO_GET cmd + * + * @band: frequency band that the response describes, one of @enum qlink_band. + * @num_chans: total number of channels info TLVs contained in reply. + * @num_bitrates: total number of bitrate TLVs contained in reply. + * @info: variable-length info portion. + */ +struct qlink_resp_band_info_get { + struct qlink_resp rhdr; + u8 band; + u8 num_chans; + u8 num_bitrates; + u8 rsvd[1]; + u8 info[]; +} __packed; + +/** + * struct qlink_resp_get_chan_stats - response for QLINK_CMD_CHAN_STATS cmd + * + * @chan_freq: center frequency for a channel the report is sent for. + * @info: variable-length channel info. + */ +struct qlink_resp_get_chan_stats { + struct qlink_resp rhdr; + __le32 chan_freq; + u8 info[]; +} __packed; + +/** + * struct qlink_resp_channel_get - response for QLINK_CMD_CHAN_GET command + * + * @chan: definition of current operating channel. + */ +struct qlink_resp_channel_get { + struct qlink_resp rhdr; + struct qlink_chandef chan; +} __packed; + +/** + * struct qlink_resp_txpwr - response for QLINK_CMD_TXPWR command + * + * This response is intended for QLINK_TXPWR_GET operation and does not + * contain any meaningful information in case of QLINK_TXPWR_SET operation. + * + * @txpwr: current transmit power setting, in mBm + */ +struct qlink_resp_txpwr { + struct qlink_resp rhdr; + __le32 txpwr; +} __packed; + +/* QLINK Events messages related definitions + */ + +enum qlink_event_type { + QLINK_EVENT_STA_ASSOCIATED = 0x0021, + QLINK_EVENT_STA_DEAUTH = 0x0022, + QLINK_EVENT_MGMT_RECEIVED = 0x0023, + QLINK_EVENT_SCAN_RESULTS = 0x0024, + QLINK_EVENT_SCAN_COMPLETE = 0x0025, + QLINK_EVENT_BSS_JOIN = 0x0026, + QLINK_EVENT_BSS_LEAVE = 0x0027, + QLINK_EVENT_FREQ_CHANGE = 0x0028, + QLINK_EVENT_RADAR = 0x0029, + QLINK_EVENT_EXTERNAL_AUTH = 0x0030, + QLINK_EVENT_MIC_FAILURE = 0x0031, + QLINK_EVENT_UPDATE_OWE = 0x0032, +}; + +/** + * struct qlink_event - QLINK event message header + * + * Header used for QLINK messages of QLINK_MSG_TYPE_EVENT type. + * + * @mhdr: Common QLINK message header. + * @event_id: Specifies specific event ID, one of &enum qlink_event_type. + * @macid: index of physical radio device the event was generated on or + * QLINK_MACID_RSVD if not applicable. + * @vifid: index of virtual wireless interface on specified @macid the event + * was generated on or QLINK_VIFID_RSVD if not applicable. + */ +struct qlink_event { + struct qlink_msg_header mhdr; + __le16 event_id; + u8 macid; + u8 vifid; +} __packed; + +/** + * struct qlink_event_sta_assoc - data for QLINK_EVENT_STA_ASSOCIATED event + * + * @sta_addr: Address of a STA for which new association event was generated + * @frame_control: control bits from 802.11 ASSOC_REQUEST header. + * @payload: IEs from association request. + */ +struct qlink_event_sta_assoc { + struct qlink_event ehdr; + u8 sta_addr[ETH_ALEN]; + __le16 frame_control; + u8 ies[]; +} __packed; + +/** + * struct qlink_event_sta_deauth - data for QLINK_EVENT_STA_DEAUTH event + * + * @sta_addr: Address of a deauthenticated STA. + * @reason: reason for deauthentication. + */ +struct qlink_event_sta_deauth { + struct qlink_event ehdr; + u8 sta_addr[ETH_ALEN]; + __le16 reason; +} __packed; + +/** + * struct qlink_event_bss_join - data for QLINK_EVENT_BSS_JOIN event + * + * @chan: new operating channel definition + * @bssid: BSSID of a BSS which interface tried to joined. + * @status: status of joining attempt, see &enum ieee80211_statuscode. + */ +struct qlink_event_bss_join { + struct qlink_event ehdr; + struct qlink_chandef chan; + u8 bssid[ETH_ALEN]; + __le16 status; + u8 ies[]; +} __packed; + +/** + * struct qlink_event_bss_leave - data for QLINK_EVENT_BSS_LEAVE event + * + * @reason: reason of disconnecting from BSS. + */ +struct qlink_event_bss_leave { + struct qlink_event ehdr; + __le16 reason; + u8 rsvd[2]; +} __packed; + +/** + * struct qlink_event_freq_change - data for QLINK_EVENT_FREQ_CHANGE event + * + * @chan: new operating channel definition + */ +struct qlink_event_freq_change { + struct qlink_event ehdr; + struct qlink_chandef chan; +} __packed; + +enum qlink_rxmgmt_flags { + QLINK_RXMGMT_FLAG_ANSWERED = 1 << 0, +}; + +/** + * struct qlink_event_rxmgmt - data for QLINK_EVENT_MGMT_RECEIVED event + * + * @freq: Frequency on which the frame was received in MHz. + * @flags: bitmap of &enum qlink_rxmgmt_flags. + * @sig_dbm: signal strength in dBm. + * @frame_data: data of Rx'd frame itself. + */ +struct qlink_event_rxmgmt { + struct qlink_event ehdr; + __le32 freq; + __le32 flags; + s8 sig_dbm; + u8 rsvd[3]; + u8 frame_data[]; +} __packed; + +/** + * struct qlink_event_scan_result - data for QLINK_EVENT_SCAN_RESULTS event + * + * @tsf: TSF timestamp indicating when scan results were generated. + * @freq: Center frequency of the channel where BSS for which the scan result + * event was generated was discovered. + * @capab: capabilities field. + * @bintval: beacon interval announced by discovered BSS. + * @sig_dbm: signal strength in dBm. + * @bssid: BSSID announced by discovered BSS. + * @ssid_len: length of SSID announced by BSS. + * @ssid: SSID announced by discovered BSS. + * @payload: IEs that are announced by discovered BSS in its MGMt frames. + */ +struct qlink_event_scan_result { + struct qlink_event ehdr; + __le64 tsf; + __le16 freq; + __le16 capab; + __le16 bintval; + s8 sig_dbm; + u8 ssid_len; + u8 ssid[IEEE80211_MAX_SSID_LEN]; + u8 bssid[ETH_ALEN]; + u8 rsvd[2]; + u8 payload[]; +} __packed; + +/** + * enum qlink_scan_complete_flags - indicates result of scan request. + * + * @QLINK_SCAN_NONE: Scan request was processed. + * @QLINK_SCAN_ABORTED: Scan was aborted. + */ +enum qlink_scan_complete_flags { + QLINK_SCAN_NONE = 0, + QLINK_SCAN_ABORTED = BIT(0), +}; + +/** + * struct qlink_event_scan_complete - data for QLINK_EVENT_SCAN_COMPLETE event + * + * @flags: flags indicating the status of pending scan request, + * see &enum qlink_scan_complete_flags. + */ +struct qlink_event_scan_complete { + struct qlink_event ehdr; + __le32 flags; +} __packed; + +enum qlink_radar_event { + QLINK_RADAR_DETECTED, + QLINK_RADAR_CAC_FINISHED, + QLINK_RADAR_CAC_ABORTED, + QLINK_RADAR_NOP_FINISHED, + QLINK_RADAR_PRE_CAC_EXPIRED, + QLINK_RADAR_CAC_STARTED, +}; + +/** + * struct qlink_event_radar - data for QLINK_EVENT_RADAR event + * + * @chan: channel on which radar event happened. + * @event: radar event type, one of &enum qlink_radar_event. + */ +struct qlink_event_radar { + struct qlink_event ehdr; + struct qlink_chandef chan; + u8 event; + u8 rsvd[3]; +} __packed; + +/** + * struct qlink_event_external_auth - data for QLINK_EVENT_EXTERNAL_AUTH event + * + * @ssid: SSID announced by BSS + * @ssid_len: SSID length + * @bssid: BSSID of the BSS to connect to + * @akm_suite: AKM suite for external authentication + * @action: action type/trigger for external authentication + */ +struct qlink_event_external_auth { + struct qlink_event ehdr; + __le32 akm_suite; + u8 ssid[IEEE80211_MAX_SSID_LEN]; + u8 bssid[ETH_ALEN]; + u8 ssid_len; + u8 action; +} __packed; + +/** + * struct qlink_event_mic_failure - data for QLINK_EVENT_MIC_FAILURE event + * + * @src: source MAC address of the frame + * @key_index: index of the key being reported + * @pairwise: whether the key is pairwise or group + */ +struct qlink_event_mic_failure { + struct qlink_event ehdr; + u8 src[ETH_ALEN]; + u8 key_index; + u8 pairwise; +} __packed; + +/** + * struct qlink_event_update_owe - data for QLINK_EVENT_UPDATE_OWE event + * + * @peer: MAC addr of the peer device for which OWE processing needs to be done + * @ies: IEs from the peer + */ +struct qlink_event_update_owe { + struct qlink_event ehdr; + u8 peer[ETH_ALEN]; + u8 rsvd[2]; + u8 ies[]; +} __packed; + +/* QLINK TLVs (Type-Length Values) definitions + */ + +/** + * enum qlink_tlv_id - list of TLVs that Qlink messages can carry + * + * @QTN_TLV_ID_BITMAP: a data representing a bitmap that is used together with + * other TLVs: + * &enum qlink_sta_info used to indicate which statistic carried in + * QTN_TLV_ID_STA_STATS is valid. + * &enum qlink_hw_capab listing wireless card capabilities. + * &enum qlink_driver_capab listing driver/host system capabilities. + * &enum qlink_chan_stat used to indicate which statistic carried in + * QTN_TLV_ID_CHANNEL_STATS is valid. + * @QTN_TLV_ID_STA_STATS: per-STA statistics as defined by + * &struct qlink_sta_stats. Valid values are marked as such in a bitmap + * carried by QTN_TLV_ID_BITMAP. + * @QTN_TLV_ID_IFTYPE_DATA: supported band data. + */ +enum qlink_tlv_id { + QTN_TLV_ID_FRAG_THRESH = 0x0201, + QTN_TLV_ID_RTS_THRESH = 0x0202, + QTN_TLV_ID_SRETRY_LIMIT = 0x0203, + QTN_TLV_ID_LRETRY_LIMIT = 0x0204, + QTN_TLV_ID_REG_RULE = 0x0207, + QTN_TLV_ID_CHANNEL = 0x020F, + QTN_TLV_ID_CHANDEF = 0x0210, + QTN_TLV_ID_BITMAP = 0x0211, + QTN_TLV_ID_STA_STATS = 0x0212, + QTN_TLV_ID_COVERAGE_CLASS = 0x0213, + QTN_TLV_ID_IFACE_LIMIT = 0x0214, + QTN_TLV_ID_CHANNEL_STATS = 0x0216, + QTN_TLV_ID_KEY = 0x0302, + QTN_TLV_ID_SEQ = 0x0303, + QTN_TLV_ID_IE_SET = 0x0305, + QTN_TLV_ID_EXT_CAPABILITY_MASK = 0x0306, + QTN_TLV_ID_ACL_DATA = 0x0307, + QTN_TLV_ID_BUILD_NAME = 0x0401, + QTN_TLV_ID_BUILD_REV = 0x0402, + QTN_TLV_ID_BUILD_TYPE = 0x0403, + QTN_TLV_ID_BUILD_LABEL = 0x0404, + QTN_TLV_ID_HW_ID = 0x0405, + QTN_TLV_ID_CALIBRATION_VER = 0x0406, + QTN_TLV_ID_UBOOT_VER = 0x0407, + QTN_TLV_ID_RANDOM_MAC_ADDR = 0x0408, + QTN_TLV_ID_WOWLAN_CAPAB = 0x0410, + QTN_TLV_ID_WOWLAN_PATTERN = 0x0411, + QTN_TLV_ID_IFTYPE_DATA = 0x0418, +}; + +struct qlink_tlv_hdr { + __le16 type; + __le16 len; + u8 val[]; +} __packed; + +struct qlink_iface_limit { + __le16 max_num; + __le16 type; +} __packed; + +struct qlink_iface_limit_record { + __le16 max_interfaces; + u8 num_different_channels; + u8 n_limits; + struct qlink_iface_limit limits[]; +} __packed; + +#define QLINK_RSSI_OFFSET 120 + +/** + * enum qlink_reg_rule_flags - regulatory rule flags + * + * See description of &enum nl80211_reg_rule_flags + */ +enum qlink_reg_rule_flags { + QLINK_RRF_NO_OFDM = BIT(0), + QLINK_RRF_NO_CCK = BIT(1), + QLINK_RRF_NO_INDOOR = BIT(2), + QLINK_RRF_NO_OUTDOOR = BIT(3), + QLINK_RRF_DFS = BIT(4), + QLINK_RRF_PTP_ONLY = BIT(5), + QLINK_RRF_PTMP_ONLY = BIT(6), + QLINK_RRF_NO_IR = BIT(7), + QLINK_RRF_AUTO_BW = BIT(8), + QLINK_RRF_IR_CONCURRENT = BIT(9), + QLINK_RRF_NO_HT40MINUS = BIT(10), + QLINK_RRF_NO_HT40PLUS = BIT(11), + QLINK_RRF_NO_80MHZ = BIT(12), + QLINK_RRF_NO_160MHZ = BIT(13), +}; + +/** + * struct qlink_tlv_reg_rule - data for QTN_TLV_ID_REG_RULE TLV + * + * Regulatory rule description. + * + * @start_freq_khz: start frequency of the range the rule is attributed to. + * @end_freq_khz: end frequency of the range the rule is attributed to. + * @max_bandwidth_khz: max bandwidth that channels in specified range can be + * configured to. + * @max_antenna_gain: max antenna gain that can be used in the specified + * frequency range, dBi. + * @max_eirp: maximum EIRP. + * @flags: regulatory rule flags in &enum qlink_reg_rule_flags. + * @dfs_cac_ms: DFS CAC period. + */ +struct qlink_tlv_reg_rule { + struct qlink_tlv_hdr hdr; + __le32 start_freq_khz; + __le32 end_freq_khz; + __le32 max_bandwidth_khz; + __le32 max_antenna_gain; + __le32 max_eirp; + __le32 flags; + __le32 dfs_cac_ms; +} __packed; + +enum qlink_channel_flags { + QLINK_CHAN_DISABLED = BIT(0), + QLINK_CHAN_NO_IR = BIT(1), + QLINK_CHAN_RADAR = BIT(3), + QLINK_CHAN_NO_HT40PLUS = BIT(4), + QLINK_CHAN_NO_HT40MINUS = BIT(5), + QLINK_CHAN_NO_OFDM = BIT(6), + QLINK_CHAN_NO_80MHZ = BIT(7), + QLINK_CHAN_NO_160MHZ = BIT(8), + QLINK_CHAN_INDOOR_ONLY = BIT(9), + QLINK_CHAN_IR_CONCURRENT = BIT(10), + QLINK_CHAN_NO_20MHZ = BIT(11), + QLINK_CHAN_NO_10MHZ = BIT(12), +}; + +enum qlink_dfs_state { + QLINK_DFS_USABLE, + QLINK_DFS_UNAVAILABLE, + QLINK_DFS_AVAILABLE, +}; + +/** + * struct qlink_tlv_channel - data for QTN_TLV_ID_CHANNEL TLV + * + * Channel settings. + * + * @channel: ieee80211 channel settings. + */ +struct qlink_tlv_channel { + struct qlink_tlv_hdr hdr; + struct qlink_channel chan; +} __packed; + +/** + * struct qlink_tlv_chandef - data for QTN_TLV_ID_CHANDEF TLV + * + * Channel definition. + * + * @chan: channel definition data. + */ +struct qlink_tlv_chandef { + struct qlink_tlv_hdr hdr; + struct qlink_chandef chdef; +} __packed; + +enum qlink_ie_set_type { + QLINK_IE_SET_UNKNOWN, + QLINK_IE_SET_ASSOC_REQ, + QLINK_IE_SET_ASSOC_RESP, + QLINK_IE_SET_PROBE_REQ, + QLINK_IE_SET_SCAN, + QLINK_IE_SET_BEACON_HEAD, + QLINK_IE_SET_BEACON_TAIL, + QLINK_IE_SET_BEACON_IES, + QLINK_IE_SET_PROBE_RESP, + QLINK_IE_SET_PROBE_RESP_IES, +}; + +/** + * struct qlink_tlv_ie_set - data for QTN_TLV_ID_IE_SET + * + * @type: type of MGMT frame IEs belong to, one of &enum qlink_ie_set_type. + * @flags: for future use. + * @ie_data: IEs data. + */ +struct qlink_tlv_ie_set { + struct qlink_tlv_hdr hdr; + u8 type; + u8 flags; + u8 rsvd[2]; + u8 ie_data[]; +} __packed; + +/** + * struct qlink_tlv_ext_ie - extension IE + * + * @eid_ext: element ID extension, one of &enum ieee80211_eid_ext. + * @ie_data: IEs data. + */ +struct qlink_tlv_ext_ie { + struct qlink_tlv_hdr hdr; + u8 eid_ext; + u8 rsvd[3]; + u8 ie_data[]; +} __packed; + +#define IEEE80211_HE_PPE_THRES_MAX_LEN 25 +struct qlink_sband_iftype_data { + __le16 types_mask; + struct ieee80211_he_cap_elem he_cap_elem; + struct ieee80211_he_mcs_nss_supp he_mcs_nss_supp; + u8 ppe_thres[IEEE80211_HE_PPE_THRES_MAX_LEN]; +} __packed; + +/** + * struct qlink_tlv_iftype_data - data for QTN_TLV_ID_IFTYPE_DATA + * + * @n_iftype_data: number of entries in iftype_data. + * @iftype_data: interface type data entries. + */ +struct qlink_tlv_iftype_data { + struct qlink_tlv_hdr hdr; + u8 n_iftype_data; + u8 rsvd[3]; + struct qlink_sband_iftype_data iftype_data[]; +} __packed; + +/** + * enum qlink_chan_stat - channel statistics bitmap + * + * Used to indicate which statistics values in &struct qlink_chan_stats + * are valid. Individual values are used to fill a bitmap carried in a + * payload of QTN_TLV_ID_BITMAP. + * + * @QLINK_CHAN_STAT_TIME_ON: time_on value is valid. + * @QLINK_CHAN_STAT_TIME_TX: time_tx value is valid. + * @QLINK_CHAN_STAT_TIME_RX: time_rx value is valid. + * @QLINK_CHAN_STAT_CCA_BUSY: cca_busy value is valid. + * @QLINK_CHAN_STAT_CCA_BUSY_EXT: cca_busy_ext value is valid. + * @QLINK_CHAN_STAT_TIME_SCAN: time_scan value is valid. + * @QLINK_CHAN_STAT_CHAN_NOISE: chan_noise value is valid. + */ +enum qlink_chan_stat { + QLINK_CHAN_STAT_TIME_ON, + QLINK_CHAN_STAT_TIME_TX, + QLINK_CHAN_STAT_TIME_RX, + QLINK_CHAN_STAT_CCA_BUSY, + QLINK_CHAN_STAT_CCA_BUSY_EXT, + QLINK_CHAN_STAT_TIME_SCAN, + QLINK_CHAN_STAT_CHAN_NOISE, + QLINK_CHAN_STAT_NUM, +}; + +/** + * struct qlink_chan_stats - data for QTN_TLV_ID_CHANNEL_STATS + * + * Carries a per-channel statistics. Not all fields may be filled with + * valid values. Valid fields should be indicated as such using a bitmap of + * &enum qlink_chan_stat. Bitmap is carried separately in a payload of + * QTN_TLV_ID_BITMAP. + * + * @time_on: amount of time radio operated on that channel. + * @time_tx: amount of time radio spent transmitting on the channel. + * @time_rx: amount of time radio spent receiving on the channel. + * @cca_busy: amount of time the primary channel was busy. + * @cca_busy_ext: amount of time the secondary channel was busy. + * @time_scan: amount of radio spent scanning on the channel. + * @chan_noise: channel noise. + */ +struct qlink_chan_stats { + __le64 time_on; + __le64 time_tx; + __le64 time_rx; + __le64 cca_busy; + __le64 cca_busy_ext; + __le64 time_scan; + s8 chan_noise; + u8 rsvd[3]; +} __packed; + +/** + * enum qlink_sta_info - station information bitmap + * + * Used to indicate which statistics values in &struct qlink_sta_stats + * are valid. Individual values are used to fill a bitmap carried in a + * payload of QTN_TLV_ID_BITMAP. + * + * @QLINK_STA_INFO_CONNECTED_TIME: connected_time value is valid. + * @QLINK_STA_INFO_INACTIVE_TIME: inactive_time value is valid. + * @QLINK_STA_INFO_RX_BYTES: lower 32 bits of rx_bytes value are valid. + * @QLINK_STA_INFO_TX_BYTES: lower 32 bits of tx_bytes value are valid. + * @QLINK_STA_INFO_RX_BYTES64: rx_bytes value is valid. + * @QLINK_STA_INFO_TX_BYTES64: tx_bytes value is valid. + * @QLINK_STA_INFO_RX_DROP_MISC: rx_dropped_misc value is valid. + * @QLINK_STA_INFO_BEACON_RX: rx_beacon value is valid. + * @QLINK_STA_INFO_SIGNAL: signal value is valid. + * @QLINK_STA_INFO_SIGNAL_AVG: signal_avg value is valid. + * @QLINK_STA_INFO_RX_BITRATE: rxrate value is valid. + * @QLINK_STA_INFO_TX_BITRATE: txrate value is valid. + * @QLINK_STA_INFO_RX_PACKETS: rx_packets value is valid. + * @QLINK_STA_INFO_TX_PACKETS: tx_packets value is valid. + * @QLINK_STA_INFO_TX_RETRIES: tx_retries value is valid. + * @QLINK_STA_INFO_TX_FAILED: tx_failed value is valid. + * @QLINK_STA_INFO_STA_FLAGS: sta_flags value is valid. + */ +enum qlink_sta_info { + QLINK_STA_INFO_CONNECTED_TIME, + QLINK_STA_INFO_INACTIVE_TIME, + QLINK_STA_INFO_RX_BYTES, + QLINK_STA_INFO_TX_BYTES, + QLINK_STA_INFO_RX_BYTES64, + QLINK_STA_INFO_TX_BYTES64, + QLINK_STA_INFO_RX_DROP_MISC, + QLINK_STA_INFO_BEACON_RX, + QLINK_STA_INFO_SIGNAL, + QLINK_STA_INFO_SIGNAL_AVG, + QLINK_STA_INFO_RX_BITRATE, + QLINK_STA_INFO_TX_BITRATE, + QLINK_STA_INFO_RX_PACKETS, + QLINK_STA_INFO_TX_PACKETS, + QLINK_STA_INFO_TX_RETRIES, + QLINK_STA_INFO_TX_FAILED, + QLINK_STA_INFO_STA_FLAGS, + QLINK_STA_INFO_NUM, +}; + +/** + * struct qlink_sta_info_rate - STA rate statistics + * + * @rate: data rate in Mbps. + * @flags: bitmap of &enum qlink_sta_info_rate_flags. + * @mcs: 802.11-defined MCS index. + * nss: Number of Spatial Streams. + * @bw: bandwidth, one of &enum qlink_channel_width. + */ +struct qlink_sta_info_rate { + __le16 rate; + u8 flags; + u8 mcs; + u8 nss; + u8 bw; +} __packed; + +/** + * struct qlink_sta_stats - data for QTN_TLV_ID_STA_STATS + * + * Carries statistics of a STA. Not all fields may be filled with + * valid values. Valid fields should be indicated as such using a bitmap of + * &enum qlink_sta_info. Bitmap is carried separately in a payload of + * QTN_TLV_ID_BITMAP. + */ +struct qlink_sta_stats { + __le64 rx_bytes; + __le64 tx_bytes; + __le64 rx_beacon; + __le64 rx_duration; + __le64 t_offset; + __le32 connected_time; + __le32 inactive_time; + __le32 rx_packets; + __le32 tx_packets; + __le32 tx_retries; + __le32 tx_failed; + __le32 rx_dropped_misc; + __le32 beacon_loss_count; + __le32 expected_throughput; + struct qlink_sta_info_state sta_flags; + struct qlink_sta_info_rate txrate; + struct qlink_sta_info_rate rxrate; + __le16 llid; + __le16 plid; + u8 local_pm; + u8 peer_pm; + u8 nonpeer_pm; + u8 rx_beacon_signal_avg; + u8 plink_state; + u8 signal; + u8 signal_avg; + u8 rsvd[1]; +}; + +/** + * struct qlink_random_mac_addr - data for QTN_TLV_ID_RANDOM_MAC_ADDR TLV + * + * Specifies MAC address mask/value for generation random MAC address + * during scan. + * + * @mac_addr: MAC address used with randomisation + * @mac_addr_mask: MAC address mask used with randomisation, bits that + * are 0 in the mask should be randomised, bits that are 1 should + * be taken from the @mac_addr + */ +struct qlink_random_mac_addr { + u8 mac_addr[ETH_ALEN]; + u8 mac_addr_mask[ETH_ALEN]; +} __packed; + +/** + * struct qlink_wowlan_capab_data - data for QTN_TLV_ID_WOWLAN_CAPAB TLV + * + * WoWLAN capabilities supported by cards. + * + * @version: version of WoWLAN data structure, to ensure backward + * compatibility for firmwares with limited WoWLAN support + * @len: Total length of WoWLAN data + * @data: supported WoWLAN features + */ +struct qlink_wowlan_capab_data { + __le16 version; + __le16 len; + u8 data[]; +} __packed; + +/** + * struct qlink_wowlan_support - supported WoWLAN capabilities + * + * @n_patterns: number of supported wakeup patterns + * @pattern_max_len: maximum length of each pattern + * @pattern_min_len: minimum length of each pattern + */ +struct qlink_wowlan_support { + __le32 n_patterns; + __le32 pattern_max_len; + __le32 pattern_min_len; +} __packed; + +#endif /* _QTN_QLINK_H_ */ diff --git a/drivers/net/wireless/quantenna/qtnfmac/qlink_util.c b/drivers/net/wireless/quantenna/qtnfmac/qlink_util.c new file mode 100644 index 000000000..30b60d6ae --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/qlink_util.c @@ -0,0 +1,303 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */ + +#include <linux/nl80211.h> + +#include "qlink_util.h" + +u16 qlink_iface_type_to_nl_mask(u16 qlink_type) +{ + u16 result = 0; + + switch (qlink_type) { + case QLINK_IFTYPE_AP: + result |= BIT(NL80211_IFTYPE_AP); + break; + case QLINK_IFTYPE_STATION: + result |= BIT(NL80211_IFTYPE_STATION); + break; + case QLINK_IFTYPE_ADHOC: + result |= BIT(NL80211_IFTYPE_ADHOC); + break; + case QLINK_IFTYPE_MONITOR: + result |= BIT(NL80211_IFTYPE_MONITOR); + break; + case QLINK_IFTYPE_WDS: + result |= BIT(NL80211_IFTYPE_WDS); + break; + case QLINK_IFTYPE_AP_VLAN: + result |= BIT(NL80211_IFTYPE_AP_VLAN); + break; + } + + return result; +} + +u8 qlink_chan_width_mask_to_nl(u16 qlink_mask) +{ + u8 result = 0; + + if (qlink_mask & BIT(QLINK_CHAN_WIDTH_5)) + result |= BIT(NL80211_CHAN_WIDTH_5); + + if (qlink_mask & BIT(QLINK_CHAN_WIDTH_10)) + result |= BIT(NL80211_CHAN_WIDTH_10); + + if (qlink_mask & BIT(QLINK_CHAN_WIDTH_20_NOHT)) + result |= BIT(NL80211_CHAN_WIDTH_20_NOHT); + + if (qlink_mask & BIT(QLINK_CHAN_WIDTH_20)) + result |= BIT(NL80211_CHAN_WIDTH_20); + + if (qlink_mask & BIT(QLINK_CHAN_WIDTH_40)) + result |= BIT(NL80211_CHAN_WIDTH_40); + + if (qlink_mask & BIT(QLINK_CHAN_WIDTH_80)) + result |= BIT(NL80211_CHAN_WIDTH_80); + + if (qlink_mask & BIT(QLINK_CHAN_WIDTH_80P80)) + result |= BIT(NL80211_CHAN_WIDTH_80P80); + + if (qlink_mask & BIT(QLINK_CHAN_WIDTH_160)) + result |= BIT(NL80211_CHAN_WIDTH_160); + + return result; +} + +static enum nl80211_chan_width qlink_chanwidth_to_nl(u8 qlw) +{ + switch (qlw) { + case QLINK_CHAN_WIDTH_20_NOHT: + return NL80211_CHAN_WIDTH_20_NOHT; + case QLINK_CHAN_WIDTH_20: + return NL80211_CHAN_WIDTH_20; + case QLINK_CHAN_WIDTH_40: + return NL80211_CHAN_WIDTH_40; + case QLINK_CHAN_WIDTH_80: + return NL80211_CHAN_WIDTH_80; + case QLINK_CHAN_WIDTH_80P80: + return NL80211_CHAN_WIDTH_80P80; + case QLINK_CHAN_WIDTH_160: + return NL80211_CHAN_WIDTH_160; + case QLINK_CHAN_WIDTH_5: + return NL80211_CHAN_WIDTH_5; + case QLINK_CHAN_WIDTH_10: + return NL80211_CHAN_WIDTH_10; + default: + return -1; + } +} + +static u8 qlink_chanwidth_nl_to_qlink(enum nl80211_chan_width nlwidth) +{ + switch (nlwidth) { + case NL80211_CHAN_WIDTH_20_NOHT: + return QLINK_CHAN_WIDTH_20_NOHT; + case NL80211_CHAN_WIDTH_20: + return QLINK_CHAN_WIDTH_20; + case NL80211_CHAN_WIDTH_40: + return QLINK_CHAN_WIDTH_40; + case NL80211_CHAN_WIDTH_80: + return QLINK_CHAN_WIDTH_80; + case NL80211_CHAN_WIDTH_80P80: + return QLINK_CHAN_WIDTH_80P80; + case NL80211_CHAN_WIDTH_160: + return QLINK_CHAN_WIDTH_160; + case NL80211_CHAN_WIDTH_5: + return QLINK_CHAN_WIDTH_5; + case NL80211_CHAN_WIDTH_10: + return QLINK_CHAN_WIDTH_10; + default: + return -1; + } +} + +void qlink_chandef_q2cfg(struct wiphy *wiphy, + const struct qlink_chandef *qch, + struct cfg80211_chan_def *chdef) +{ + struct ieee80211_channel *chan; + + chan = ieee80211_get_channel(wiphy, le16_to_cpu(qch->chan.center_freq)); + + chdef->chan = chan; + chdef->center_freq1 = le16_to_cpu(qch->center_freq1); + chdef->center_freq2 = le16_to_cpu(qch->center_freq2); + chdef->width = qlink_chanwidth_to_nl(qch->width); + chdef->edmg.bw_config = 0; + chdef->edmg.channels = 0; +} + +void qlink_chandef_cfg2q(const struct cfg80211_chan_def *chdef, + struct qlink_chandef *qch) +{ + struct ieee80211_channel *chan = chdef->chan; + + qch->chan.hw_value = cpu_to_le16(chan->hw_value); + qch->chan.center_freq = cpu_to_le16(chan->center_freq); + qch->chan.flags = cpu_to_le32(chan->flags); + + qch->center_freq1 = cpu_to_le16(chdef->center_freq1); + qch->center_freq2 = cpu_to_le16(chdef->center_freq2); + qch->width = qlink_chanwidth_nl_to_qlink(chdef->width); +} + +enum qlink_hidden_ssid qlink_hidden_ssid_nl2q(enum nl80211_hidden_ssid nl_val) +{ + switch (nl_val) { + case NL80211_HIDDEN_SSID_ZERO_LEN: + return QLINK_HIDDEN_SSID_ZERO_LEN; + case NL80211_HIDDEN_SSID_ZERO_CONTENTS: + return QLINK_HIDDEN_SSID_ZERO_CONTENTS; + case NL80211_HIDDEN_SSID_NOT_IN_USE: + default: + return QLINK_HIDDEN_SSID_NOT_IN_USE; + } +} + +bool qtnf_utils_is_bit_set(const u8 *arr, unsigned int bit, + unsigned int arr_max_len) +{ + unsigned int idx = bit / BITS_PER_BYTE; + u8 mask = 1 << (bit - (idx * BITS_PER_BYTE)); + + if (idx >= arr_max_len) + return false; + + return arr[idx] & mask; +} + +void qlink_acl_data_cfg2q(const struct cfg80211_acl_data *acl, + struct qlink_acl_data *qacl) +{ + switch (acl->acl_policy) { + case NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED: + qacl->policy = + cpu_to_le32(QLINK_ACL_POLICY_ACCEPT_UNLESS_LISTED); + break; + case NL80211_ACL_POLICY_DENY_UNLESS_LISTED: + qacl->policy = cpu_to_le32(QLINK_ACL_POLICY_DENY_UNLESS_LISTED); + break; + } + + qacl->num_entries = cpu_to_le32(acl->n_acl_entries); + memcpy(qacl->mac_addrs, acl->mac_addrs, + acl->n_acl_entries * sizeof(*qacl->mac_addrs)); +} + +enum qlink_band qlink_utils_band_cfg2q(enum nl80211_band band) +{ + switch (band) { + case NL80211_BAND_2GHZ: + return QLINK_BAND_2GHZ; + case NL80211_BAND_5GHZ: + return QLINK_BAND_5GHZ; + case NL80211_BAND_60GHZ: + return QLINK_BAND_60GHZ; + default: + return -EINVAL; + } +} + +enum qlink_dfs_state qlink_utils_dfs_state_cfg2q(enum nl80211_dfs_state state) +{ + switch (state) { + case NL80211_DFS_USABLE: + return QLINK_DFS_USABLE; + case NL80211_DFS_AVAILABLE: + return QLINK_DFS_AVAILABLE; + case NL80211_DFS_UNAVAILABLE: + default: + return QLINK_DFS_UNAVAILABLE; + } +} + +u32 qlink_utils_chflags_cfg2q(u32 cfgflags) +{ + u32 flags = 0; + + if (cfgflags & IEEE80211_CHAN_DISABLED) + flags |= QLINK_CHAN_DISABLED; + + if (cfgflags & IEEE80211_CHAN_NO_IR) + flags |= QLINK_CHAN_NO_IR; + + if (cfgflags & IEEE80211_CHAN_RADAR) + flags |= QLINK_CHAN_RADAR; + + if (cfgflags & IEEE80211_CHAN_NO_HT40PLUS) + flags |= QLINK_CHAN_NO_HT40PLUS; + + if (cfgflags & IEEE80211_CHAN_NO_HT40MINUS) + flags |= QLINK_CHAN_NO_HT40MINUS; + + if (cfgflags & IEEE80211_CHAN_NO_80MHZ) + flags |= QLINK_CHAN_NO_80MHZ; + + if (cfgflags & IEEE80211_CHAN_NO_160MHZ) + flags |= QLINK_CHAN_NO_160MHZ; + + return flags; +} + +static u32 qtnf_reg_rule_flags_parse(u32 qflags) +{ + u32 flags = 0; + + if (qflags & QLINK_RRF_NO_OFDM) + flags |= NL80211_RRF_NO_OFDM; + + if (qflags & QLINK_RRF_NO_CCK) + flags |= NL80211_RRF_NO_CCK; + + if (qflags & QLINK_RRF_NO_INDOOR) + flags |= NL80211_RRF_NO_INDOOR; + + if (qflags & QLINK_RRF_NO_OUTDOOR) + flags |= NL80211_RRF_NO_OUTDOOR; + + if (qflags & QLINK_RRF_DFS) + flags |= NL80211_RRF_DFS; + + if (qflags & QLINK_RRF_PTP_ONLY) + flags |= NL80211_RRF_PTP_ONLY; + + if (qflags & QLINK_RRF_PTMP_ONLY) + flags |= NL80211_RRF_PTMP_ONLY; + + if (qflags & QLINK_RRF_NO_IR) + flags |= NL80211_RRF_NO_IR; + + if (qflags & QLINK_RRF_AUTO_BW) + flags |= NL80211_RRF_AUTO_BW; + + if (qflags & QLINK_RRF_IR_CONCURRENT) + flags |= NL80211_RRF_IR_CONCURRENT; + + if (qflags & QLINK_RRF_NO_HT40MINUS) + flags |= NL80211_RRF_NO_HT40MINUS; + + if (qflags & QLINK_RRF_NO_HT40PLUS) + flags |= NL80211_RRF_NO_HT40PLUS; + + if (qflags & QLINK_RRF_NO_80MHZ) + flags |= NL80211_RRF_NO_80MHZ; + + if (qflags & QLINK_RRF_NO_160MHZ) + flags |= NL80211_RRF_NO_160MHZ; + + return flags; +} + +void qlink_utils_regrule_q2nl(struct ieee80211_reg_rule *rule, + const struct qlink_tlv_reg_rule *tlv) +{ + rule->freq_range.start_freq_khz = le32_to_cpu(tlv->start_freq_khz); + rule->freq_range.end_freq_khz = le32_to_cpu(tlv->end_freq_khz); + rule->freq_range.max_bandwidth_khz = + le32_to_cpu(tlv->max_bandwidth_khz); + rule->power_rule.max_antenna_gain = le32_to_cpu(tlv->max_antenna_gain); + rule->power_rule.max_eirp = le32_to_cpu(tlv->max_eirp); + rule->dfs_cac_ms = le32_to_cpu(tlv->dfs_cac_ms); + rule->flags = qtnf_reg_rule_flags_parse(le32_to_cpu(tlv->flags)); +} diff --git a/drivers/net/wireless/quantenna/qtnfmac/qlink_util.h b/drivers/net/wireless/quantenna/qtnfmac/qlink_util.h new file mode 100644 index 000000000..230a10a41 --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/qlink_util.h @@ -0,0 +1,73 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */ + +#ifndef _QTN_FMAC_QLINK_UTIL_H_ +#define _QTN_FMAC_QLINK_UTIL_H_ + +#include <linux/types.h> +#include <linux/skbuff.h> +#include <net/cfg80211.h> + +#include "qlink.h" + +static inline void +qtnf_cmd_skb_put_buffer(struct sk_buff *skb, const u8 *buf_src, size_t len) +{ + skb_put_data(skb, buf_src, len); +} + +static inline void qtnf_cmd_skb_put_tlv_arr(struct sk_buff *skb, + u16 tlv_id, const u8 arr[], + size_t arr_len) +{ + struct qlink_tlv_hdr *hdr; + + hdr = skb_put(skb, sizeof(*hdr) + round_up(arr_len, QLINK_ALIGN)); + hdr->type = cpu_to_le16(tlv_id); + hdr->len = cpu_to_le16(arr_len); + memcpy(hdr->val, arr, arr_len); +} + +static inline void qtnf_cmd_skb_put_tlv_u32(struct sk_buff *skb, + u16 tlv_id, u32 value) +{ + struct qlink_tlv_hdr *hdr = skb_put(skb, sizeof(*hdr) + sizeof(value)); + __le32 tmp = cpu_to_le32(value); + + hdr->type = cpu_to_le16(tlv_id); + hdr->len = cpu_to_le16(sizeof(value)); + memcpy(hdr->val, &tmp, sizeof(tmp)); +} + +u16 qlink_iface_type_to_nl_mask(u16 qlink_type); +u8 qlink_chan_width_mask_to_nl(u16 qlink_mask); +void qlink_chandef_q2cfg(struct wiphy *wiphy, + const struct qlink_chandef *qch, + struct cfg80211_chan_def *chdef); +void qlink_chandef_cfg2q(const struct cfg80211_chan_def *chdef, + struct qlink_chandef *qch); +enum qlink_hidden_ssid qlink_hidden_ssid_nl2q(enum nl80211_hidden_ssid nl_val); +bool qtnf_utils_is_bit_set(const u8 *arr, unsigned int bit, + unsigned int arr_max_len); +void qlink_acl_data_cfg2q(const struct cfg80211_acl_data *acl, + struct qlink_acl_data *qacl); +enum qlink_band qlink_utils_band_cfg2q(enum nl80211_band band); +enum qlink_dfs_state qlink_utils_dfs_state_cfg2q(enum nl80211_dfs_state state); +u32 qlink_utils_chflags_cfg2q(u32 cfgflags); +void qlink_utils_regrule_q2nl(struct ieee80211_reg_rule *rule, + const struct qlink_tlv_reg_rule *tlv_rule); + +#define qlink_for_each_tlv(_tlv, _start, _datalen) \ + for (_tlv = (const struct qlink_tlv_hdr *)(_start); \ + (const u8 *)(_start) + (_datalen) - (const u8 *)_tlv >= \ + (int)sizeof(*_tlv) && \ + (const u8 *)(_start) + (_datalen) - (const u8 *)_tlv >= \ + (int)sizeof(*_tlv) + le16_to_cpu(_tlv->len); \ + _tlv = (const struct qlink_tlv_hdr *)(_tlv->val + \ + round_up(le16_to_cpu(_tlv->len), QLINK_ALIGN))) + +#define qlink_tlv_parsing_ok(_tlv_last, _start, _datalen) \ + ((const u8 *)(_tlv_last) == \ + (const u8 *)(_start) + round_up(_datalen, QLINK_ALIGN)) + +#endif /* _QTN_FMAC_QLINK_UTIL_H_ */ diff --git a/drivers/net/wireless/quantenna/qtnfmac/qtn_hw_ids.h b/drivers/net/wireless/quantenna/qtnfmac/qtn_hw_ids.h new file mode 100644 index 000000000..82d879950 --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/qtn_hw_ids.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */ + +#ifndef _QTN_HW_IDS_H_ +#define _QTN_HW_IDS_H_ + +#include <linux/pci_ids.h> + +#define PCIE_VENDOR_ID_QUANTENNA (0x1bb5) + +/* PCIE Device IDs */ + +#define PCIE_DEVICE_ID_QSR (0x0008) + +#define QTN_REG_SYS_CTRL_CSR 0x14 +#define QTN_CHIP_ID_MASK 0xF0 +#define QTN_CHIP_ID_TOPAZ 0x40 +#define QTN_CHIP_ID_PEARL 0x50 +#define QTN_CHIP_ID_PEARL_B 0x60 +#define QTN_CHIP_ID_PEARL_C 0x70 + +/* FW names */ + +#define QTN_PCI_PEARL_FW_NAME "qtn/fmac_qsr10g.img" +#define QTN_PCI_TOPAZ_FW_NAME "qtn/fmac_qsr1000.img" +#define QTN_PCI_TOPAZ_BOOTLD_NAME "qtn/uboot_qsr1000.img" + +static inline unsigned int qtnf_chip_id_get(const void __iomem *regs_base) +{ + u32 board_rev = readl(regs_base + QTN_REG_SYS_CTRL_CSR); + + return board_rev & QTN_CHIP_ID_MASK; +} + +#endif /* _QTN_HW_IDS_H_ */ diff --git a/drivers/net/wireless/quantenna/qtnfmac/shm_ipc.c b/drivers/net/wireless/quantenna/qtnfmac/shm_ipc.c new file mode 100644 index 000000000..ff678951d --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/shm_ipc.c @@ -0,0 +1,162 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */ + +#include <linux/types.h> +#include <linux/io.h> + +#include "shm_ipc.h" + +#undef pr_fmt +#define pr_fmt(fmt) "qtnfmac shm_ipc: %s: " fmt, __func__ + +static bool qtnf_shm_ipc_has_new_data(struct qtnf_shm_ipc *ipc) +{ + const u32 flags = readl(&ipc->shm_region->headroom.hdr.flags); + + return (flags & QTNF_SHM_IPC_NEW_DATA); +} + +static void qtnf_shm_handle_new_data(struct qtnf_shm_ipc *ipc) +{ + size_t size; + bool rx_buff_ok = true; + struct qtnf_shm_ipc_region_header __iomem *shm_reg_hdr; + + shm_reg_hdr = &ipc->shm_region->headroom.hdr; + + size = readw(&shm_reg_hdr->data_len); + + if (unlikely(size == 0 || size > QTN_IPC_MAX_DATA_SZ)) { + pr_err("wrong rx packet size: %zu\n", size); + rx_buff_ok = false; + } + + if (likely(rx_buff_ok)) { + ipc->rx_packet_count++; + ipc->rx_callback.fn(ipc->rx_callback.arg, + ipc->shm_region->data, size); + } + + writel(QTNF_SHM_IPC_ACK, &shm_reg_hdr->flags); + readl(&shm_reg_hdr->flags); /* flush PCIe write */ + + ipc->interrupt.fn(ipc->interrupt.arg); +} + +static void qtnf_shm_ipc_irq_work(struct work_struct *work) +{ + struct qtnf_shm_ipc *ipc = container_of(work, struct qtnf_shm_ipc, + irq_work); + + while (qtnf_shm_ipc_has_new_data(ipc)) + qtnf_shm_handle_new_data(ipc); +} + +static void qtnf_shm_ipc_irq_inbound_handler(struct qtnf_shm_ipc *ipc) +{ + u32 flags; + + flags = readl(&ipc->shm_region->headroom.hdr.flags); + + if (flags & QTNF_SHM_IPC_NEW_DATA) + queue_work(ipc->workqueue, &ipc->irq_work); +} + +static void qtnf_shm_ipc_irq_outbound_handler(struct qtnf_shm_ipc *ipc) +{ + u32 flags; + + if (!READ_ONCE(ipc->waiting_for_ack)) + return; + + flags = readl(&ipc->shm_region->headroom.hdr.flags); + + if (flags & QTNF_SHM_IPC_ACK) { + WRITE_ONCE(ipc->waiting_for_ack, 0); + complete(&ipc->tx_completion); + } +} + +int qtnf_shm_ipc_init(struct qtnf_shm_ipc *ipc, + enum qtnf_shm_ipc_direction direction, + struct qtnf_shm_ipc_region __iomem *shm_region, + struct workqueue_struct *workqueue, + const struct qtnf_shm_ipc_int *interrupt, + const struct qtnf_shm_ipc_rx_callback *rx_callback) +{ + BUILD_BUG_ON(offsetof(struct qtnf_shm_ipc_region, data) != + QTN_IPC_REG_HDR_SZ); + BUILD_BUG_ON(sizeof(struct qtnf_shm_ipc_region) > QTN_IPC_REG_SZ); + + ipc->shm_region = shm_region; + ipc->direction = direction; + ipc->interrupt = *interrupt; + ipc->rx_callback = *rx_callback; + ipc->tx_packet_count = 0; + ipc->rx_packet_count = 0; + ipc->workqueue = workqueue; + ipc->waiting_for_ack = 0; + ipc->tx_timeout_count = 0; + + switch (direction) { + case QTNF_SHM_IPC_OUTBOUND: + ipc->irq_handler = qtnf_shm_ipc_irq_outbound_handler; + break; + case QTNF_SHM_IPC_INBOUND: + ipc->irq_handler = qtnf_shm_ipc_irq_inbound_handler; + break; + default: + return -EINVAL; + } + + INIT_WORK(&ipc->irq_work, qtnf_shm_ipc_irq_work); + init_completion(&ipc->tx_completion); + + return 0; +} + +void qtnf_shm_ipc_free(struct qtnf_shm_ipc *ipc) +{ + complete_all(&ipc->tx_completion); +} + +int qtnf_shm_ipc_send(struct qtnf_shm_ipc *ipc, const u8 *buf, size_t size) +{ + int ret = 0; + struct qtnf_shm_ipc_region_header __iomem *shm_reg_hdr; + + shm_reg_hdr = &ipc->shm_region->headroom.hdr; + + if (unlikely(size > QTN_IPC_MAX_DATA_SZ)) + return -E2BIG; + + ipc->tx_packet_count++; + + writew(size, &shm_reg_hdr->data_len); + memcpy_toio(ipc->shm_region->data, buf, size); + + /* sync previous writes before proceeding */ + dma_wmb(); + + WRITE_ONCE(ipc->waiting_for_ack, 1); + + /* sync previous memory write before announcing new data ready */ + wmb(); + + writel(QTNF_SHM_IPC_NEW_DATA, &shm_reg_hdr->flags); + readl(&shm_reg_hdr->flags); /* flush PCIe write */ + + ipc->interrupt.fn(ipc->interrupt.arg); + + if (!wait_for_completion_timeout(&ipc->tx_completion, + QTN_SHM_IPC_ACK_TIMEOUT)) { + ret = -ETIMEDOUT; + ipc->tx_timeout_count++; + pr_err("TX ACK timeout\n"); + } + + /* now we're not waiting for ACK even in case of timeout */ + WRITE_ONCE(ipc->waiting_for_ack, 0); + + return ret; +} diff --git a/drivers/net/wireless/quantenna/qtnfmac/shm_ipc.h b/drivers/net/wireless/quantenna/qtnfmac/shm_ipc.h new file mode 100644 index 000000000..52cac5439 --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/shm_ipc.h @@ -0,0 +1,65 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */ + +#ifndef _QTN_FMAC_SHM_IPC_H_ +#define _QTN_FMAC_SHM_IPC_H_ + +#include <linux/workqueue.h> +#include <linux/completion.h> +#include <linux/mutex.h> +#include <linux/spinlock.h> + +#include "shm_ipc_defs.h" + +#define QTN_SHM_IPC_ACK_TIMEOUT (2 * HZ) + +struct qtnf_shm_ipc_int { + void (*fn)(void *arg); + void *arg; +}; + +struct qtnf_shm_ipc_rx_callback { + void (*fn)(void *arg, const u8 __iomem *buf, size_t len); + void *arg; +}; + +enum qtnf_shm_ipc_direction { + QTNF_SHM_IPC_OUTBOUND = BIT(0), + QTNF_SHM_IPC_INBOUND = BIT(1), +}; + +struct qtnf_shm_ipc { + struct qtnf_shm_ipc_region __iomem *shm_region; + enum qtnf_shm_ipc_direction direction; + size_t tx_packet_count; + size_t rx_packet_count; + + size_t tx_timeout_count; + + u8 waiting_for_ack; + + struct qtnf_shm_ipc_int interrupt; + struct qtnf_shm_ipc_rx_callback rx_callback; + + void (*irq_handler)(struct qtnf_shm_ipc *ipc); + + struct workqueue_struct *workqueue; + struct work_struct irq_work; + struct completion tx_completion; +}; + +int qtnf_shm_ipc_init(struct qtnf_shm_ipc *ipc, + enum qtnf_shm_ipc_direction direction, + struct qtnf_shm_ipc_region __iomem *shm_region, + struct workqueue_struct *workqueue, + const struct qtnf_shm_ipc_int *interrupt, + const struct qtnf_shm_ipc_rx_callback *rx_callback); +void qtnf_shm_ipc_free(struct qtnf_shm_ipc *ipc); +int qtnf_shm_ipc_send(struct qtnf_shm_ipc *ipc, const u8 *buf, size_t size); + +static inline void qtnf_shm_ipc_irq_handler(struct qtnf_shm_ipc *ipc) +{ + ipc->irq_handler(ipc); +} + +#endif /* _QTN_FMAC_SHM_IPC_H_ */ diff --git a/drivers/net/wireless/quantenna/qtnfmac/shm_ipc_defs.h b/drivers/net/wireless/quantenna/qtnfmac/shm_ipc_defs.h new file mode 100644 index 000000000..78be70df1 --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/shm_ipc_defs.h @@ -0,0 +1,33 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */ + +#ifndef _QTN_FMAC_SHM_IPC_DEFS_H_ +#define _QTN_FMAC_SHM_IPC_DEFS_H_ + +#include <linux/types.h> + +#define QTN_IPC_REG_HDR_SZ (32) +#define QTN_IPC_REG_SZ (4096) +#define QTN_IPC_MAX_DATA_SZ (QTN_IPC_REG_SZ - QTN_IPC_REG_HDR_SZ) + +enum qtnf_shm_ipc_region_flags { + QTNF_SHM_IPC_NEW_DATA = BIT(0), + QTNF_SHM_IPC_ACK = BIT(1), +}; + +struct qtnf_shm_ipc_region_header { + __le32 flags; + __le16 data_len; +} __packed; + +union qtnf_shm_ipc_region_headroom { + struct qtnf_shm_ipc_region_header hdr; + u8 headroom[QTN_IPC_REG_HDR_SZ]; +} __packed; + +struct qtnf_shm_ipc_region { + union qtnf_shm_ipc_region_headroom headroom; + u8 data[QTN_IPC_MAX_DATA_SZ]; +} __packed; + +#endif /* _QTN_FMAC_SHM_IPC_DEFS_H_ */ diff --git a/drivers/net/wireless/quantenna/qtnfmac/switchdev.h b/drivers/net/wireless/quantenna/qtnfmac/switchdev.h new file mode 100644 index 000000000..b962e670c --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/switchdev.h @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* Copyright (c) 2019 Quantenna Communications. All rights reserved. */ + +#ifndef QTNFMAC_SWITCHDEV_H_ +#define QTNFMAC_SWITCHDEV_H_ + +#include <linux/skbuff.h> + +#ifdef CONFIG_NET_SWITCHDEV + +static inline void qtnfmac_switch_mark_skb_flooded(struct sk_buff *skb) +{ + skb->offload_fwd_mark = 1; +} + +#else + +static inline void qtnfmac_switch_mark_skb_flooded(struct sk_buff *skb) +{ +} + +#endif + +#endif /* QTNFMAC_SWITCHDEV_H_ */ diff --git a/drivers/net/wireless/quantenna/qtnfmac/trans.c b/drivers/net/wireless/quantenna/qtnfmac/trans.c new file mode 100644 index 000000000..95356e280 --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/trans.c @@ -0,0 +1,213 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */ + +#include <linux/types.h> +#include <linux/export.h> +#include <linux/slab.h> + +#include "core.h" +#include "commands.h" +#include "event.h" +#include "bus.h" + +#define QTNF_DEF_SYNC_CMD_TIMEOUT (5 * HZ) + +int qtnf_trans_send_cmd_with_resp(struct qtnf_bus *bus, struct sk_buff *cmd_skb, + struct sk_buff **response_skb) +{ + struct qtnf_cmd_ctl_node *ctl_node = &bus->trans.curr_cmd; + struct qlink_cmd *cmd = (void *)cmd_skb->data; + int ret = 0; + long status; + bool resp_not_handled = true; + struct sk_buff *resp_skb = NULL; + + if (unlikely(!response_skb)) { + dev_kfree_skb(cmd_skb); + return -EFAULT; + } + + spin_lock(&ctl_node->resp_lock); + ctl_node->seq_num++; + cmd->seq_num = cpu_to_le16(ctl_node->seq_num); + WARN(ctl_node->resp_skb, "qtnfmac: response skb not empty\n"); + ctl_node->waiting_for_resp = true; + spin_unlock(&ctl_node->resp_lock); + + ret = qtnf_bus_control_tx(bus, cmd_skb); + dev_kfree_skb(cmd_skb); + + if (unlikely(ret)) + goto out; + + status = wait_for_completion_interruptible_timeout( + &ctl_node->cmd_resp_completion, + QTNF_DEF_SYNC_CMD_TIMEOUT); + + spin_lock(&ctl_node->resp_lock); + resp_not_handled = ctl_node->waiting_for_resp; + resp_skb = ctl_node->resp_skb; + ctl_node->resp_skb = NULL; + ctl_node->waiting_for_resp = false; + spin_unlock(&ctl_node->resp_lock); + + if (unlikely(status <= 0)) { + if (status == 0) { + ret = -ETIMEDOUT; + pr_err("response timeout\n"); + } else { + ret = -EINTR; + pr_debug("interrupted\n"); + } + } + + if (unlikely(!resp_skb || resp_not_handled)) { + if (!ret) + ret = -EFAULT; + + goto out; + } + + ret = 0; + *response_skb = resp_skb; + +out: + if (unlikely(resp_skb && resp_not_handled)) + dev_kfree_skb(resp_skb); + + return ret; +} + +static void qtnf_trans_signal_cmdresp(struct qtnf_bus *bus, struct sk_buff *skb) +{ + struct qtnf_cmd_ctl_node *ctl_node = &bus->trans.curr_cmd; + const struct qlink_resp *resp = (const struct qlink_resp *)skb->data; + const u16 recvd_seq_num = le16_to_cpu(resp->seq_num); + + spin_lock(&ctl_node->resp_lock); + + if (unlikely(!ctl_node->waiting_for_resp)) { + pr_err("unexpected response\n"); + goto out_err; + } + + if (unlikely(recvd_seq_num != ctl_node->seq_num)) { + pr_err("seq num mismatch\n"); + goto out_err; + } + + ctl_node->resp_skb = skb; + ctl_node->waiting_for_resp = false; + + spin_unlock(&ctl_node->resp_lock); + + complete(&ctl_node->cmd_resp_completion); + return; + +out_err: + spin_unlock(&ctl_node->resp_lock); + dev_kfree_skb(skb); +} + +static int qtnf_trans_event_enqueue(struct qtnf_bus *bus, struct sk_buff *skb) +{ + struct qtnf_qlink_transport *trans = &bus->trans; + + if (likely(skb_queue_len(&trans->event_queue) < + trans->event_queue_max_len)) { + skb_queue_tail(&trans->event_queue, skb); + queue_work(bus->workqueue, &bus->event_work); + } else { + pr_warn("event dropped due to queue overflow\n"); + dev_kfree_skb(skb); + return -1; + } + + return 0; +} + +void qtnf_trans_init(struct qtnf_bus *bus) +{ + struct qtnf_qlink_transport *trans = &bus->trans; + + init_completion(&trans->curr_cmd.cmd_resp_completion); + spin_lock_init(&trans->curr_cmd.resp_lock); + + spin_lock(&trans->curr_cmd.resp_lock); + trans->curr_cmd.seq_num = 0; + trans->curr_cmd.waiting_for_resp = false; + trans->curr_cmd.resp_skb = NULL; + spin_unlock(&trans->curr_cmd.resp_lock); + + /* Init event handling related fields */ + skb_queue_head_init(&trans->event_queue); + trans->event_queue_max_len = QTNF_MAX_EVENT_QUEUE_LEN; +} + +static void qtnf_trans_free_events(struct qtnf_bus *bus) +{ + struct sk_buff_head *event_queue = &bus->trans.event_queue; + struct sk_buff *current_event_skb = skb_dequeue(event_queue); + + while (current_event_skb) { + dev_kfree_skb_any(current_event_skb); + current_event_skb = skb_dequeue(event_queue); + } +} + +void qtnf_trans_free(struct qtnf_bus *bus) +{ + if (!bus) { + pr_err("invalid bus pointer\n"); + return; + } + + qtnf_trans_free_events(bus); +} + +int qtnf_trans_handle_rx_ctl_packet(struct qtnf_bus *bus, struct sk_buff *skb) +{ + const struct qlink_msg_header *header = (void *)skb->data; + int ret = -1; + + if (unlikely(skb->len < sizeof(*header))) { + pr_warn("packet is too small: %u\n", skb->len); + dev_kfree_skb(skb); + return -EINVAL; + } + + if (unlikely(skb->len != le16_to_cpu(header->len))) { + pr_warn("cmd reply length mismatch: %u != %u\n", + skb->len, le16_to_cpu(header->len)); + dev_kfree_skb(skb); + return -EFAULT; + } + + switch (le16_to_cpu(header->type)) { + case QLINK_MSG_TYPE_CMDRSP: + if (unlikely(skb->len < sizeof(struct qlink_cmd))) { + pr_warn("cmd reply too short: %u\n", skb->len); + dev_kfree_skb(skb); + break; + } + + qtnf_trans_signal_cmdresp(bus, skb); + break; + case QLINK_MSG_TYPE_EVENT: + if (unlikely(skb->len < sizeof(struct qlink_event))) { + pr_warn("event too short: %u\n", skb->len); + dev_kfree_skb(skb); + break; + } + + ret = qtnf_trans_event_enqueue(bus, skb); + break; + default: + pr_warn("unknown packet type: %x\n", le16_to_cpu(header->type)); + dev_kfree_skb(skb); + break; + } + + return ret; +} +EXPORT_SYMBOL_GPL(qtnf_trans_handle_rx_ctl_packet); diff --git a/drivers/net/wireless/quantenna/qtnfmac/trans.h b/drivers/net/wireless/quantenna/qtnfmac/trans.h new file mode 100644 index 000000000..c0b76f871 --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/trans.h @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */ + +#ifndef _QTN_FMAC_TRANS_H_ +#define _QTN_FMAC_TRANS_H_ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/skbuff.h> +#include <linux/mutex.h> + +#include "qlink.h" + +#define QTNF_CMD_FLAG_RESP_REQ BIT(0) + +#define QTNF_MAX_CMD_BUF_SIZE 2048 +#define QTNF_DEF_CMD_HROOM 4 + +struct qtnf_bus; + +struct qtnf_cmd_ctl_node { + struct completion cmd_resp_completion; + struct sk_buff *resp_skb; + u16 seq_num; + bool waiting_for_resp; + spinlock_t resp_lock; /* lock for resp_skb & waiting_for_resp changes */ +}; + +struct qtnf_qlink_transport { + struct qtnf_cmd_ctl_node curr_cmd; + struct sk_buff_head event_queue; + size_t event_queue_max_len; +}; + +void qtnf_trans_init(struct qtnf_bus *bus); +void qtnf_trans_free(struct qtnf_bus *bus); + +int qtnf_trans_send_next_cmd(struct qtnf_bus *bus); +int qtnf_trans_handle_rx_ctl_packet(struct qtnf_bus *bus, struct sk_buff *skb); +int qtnf_trans_send_cmd_with_resp(struct qtnf_bus *bus, + struct sk_buff *cmd_skb, + struct sk_buff **response_skb); + +#endif /* _QTN_FMAC_TRANS_H_ */ diff --git a/drivers/net/wireless/quantenna/qtnfmac/util.c b/drivers/net/wireless/quantenna/qtnfmac/util.c new file mode 100644 index 000000000..cda6f5f3f --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/util.c @@ -0,0 +1,123 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */ + +#include "util.h" +#include "qtn_hw_ids.h" + +void qtnf_sta_list_init(struct qtnf_sta_list *list) +{ + if (unlikely(!list)) + return; + + INIT_LIST_HEAD(&list->head); + atomic_set(&list->size, 0); +} + +struct qtnf_sta_node *qtnf_sta_list_lookup(struct qtnf_sta_list *list, + const u8 *mac) +{ + struct qtnf_sta_node *node; + + if (unlikely(!mac)) + return NULL; + + list_for_each_entry(node, &list->head, list) { + if (ether_addr_equal(node->mac_addr, mac)) + return node; + } + + return NULL; +} + +struct qtnf_sta_node *qtnf_sta_list_lookup_index(struct qtnf_sta_list *list, + size_t index) +{ + struct qtnf_sta_node *node; + + if (qtnf_sta_list_size(list) <= index) + return NULL; + + list_for_each_entry(node, &list->head, list) { + if (index-- == 0) + return node; + } + + return NULL; +} + +struct qtnf_sta_node *qtnf_sta_list_add(struct qtnf_vif *vif, + const u8 *mac) +{ + struct qtnf_sta_list *list = &vif->sta_list; + struct qtnf_sta_node *node; + + if (unlikely(!mac)) + return NULL; + + node = qtnf_sta_list_lookup(list, mac); + + if (node) + goto done; + + node = kzalloc(sizeof(*node), GFP_KERNEL); + if (unlikely(!node)) + goto done; + + ether_addr_copy(node->mac_addr, mac); + list_add_tail(&node->list, &list->head); + atomic_inc(&list->size); + ++vif->generation; + +done: + return node; +} + +bool qtnf_sta_list_del(struct qtnf_vif *vif, const u8 *mac) +{ + struct qtnf_sta_list *list = &vif->sta_list; + struct qtnf_sta_node *node; + bool ret = false; + + node = qtnf_sta_list_lookup(list, mac); + + if (node) { + list_del(&node->list); + atomic_dec(&list->size); + kfree(node); + ++vif->generation; + ret = true; + } + + return ret; +} + +void qtnf_sta_list_free(struct qtnf_sta_list *list) +{ + struct qtnf_sta_node *node, *tmp; + + atomic_set(&list->size, 0); + + list_for_each_entry_safe(node, tmp, &list->head, list) { + list_del(&node->list); + kfree(node); + } + + INIT_LIST_HEAD(&list->head); +} + +const char *qtnf_chipid_to_string(unsigned long chip_id) +{ + switch (chip_id) { + case QTN_CHIP_ID_TOPAZ: + return "Topaz"; + case QTN_CHIP_ID_PEARL: + return "Pearl revA"; + case QTN_CHIP_ID_PEARL_B: + return "Pearl revB"; + case QTN_CHIP_ID_PEARL_C: + return "Pearl revC"; + default: + return "unknown"; + } +} +EXPORT_SYMBOL_GPL(qtnf_chipid_to_string); diff --git a/drivers/net/wireless/quantenna/qtnfmac/util.h b/drivers/net/wireless/quantenna/qtnfmac/util.h new file mode 100644 index 000000000..a14b7078a --- /dev/null +++ b/drivers/net/wireless/quantenna/qtnfmac/util.h @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* Copyright (c) 2015 Quantenna Communications. All rights reserved. */ + +#ifndef QTNFMAC_UTIL_H +#define QTNFMAC_UTIL_H + +#include <linux/kernel.h> +#include "core.h" + +const char *qtnf_chipid_to_string(unsigned long chip_id); + +void qtnf_sta_list_init(struct qtnf_sta_list *list); + +struct qtnf_sta_node *qtnf_sta_list_lookup(struct qtnf_sta_list *list, + const u8 *mac); +struct qtnf_sta_node *qtnf_sta_list_lookup_index(struct qtnf_sta_list *list, + size_t index); +struct qtnf_sta_node *qtnf_sta_list_add(struct qtnf_vif *vif, + const u8 *mac); +bool qtnf_sta_list_del(struct qtnf_vif *vif, const u8 *mac); + +void qtnf_sta_list_free(struct qtnf_sta_list *list); + +static inline size_t qtnf_sta_list_size(const struct qtnf_sta_list *list) +{ + return atomic_read(&list->size); +} + +static inline bool qtnf_sta_list_empty(const struct qtnf_sta_list *list) +{ + return list_empty(&list->head); +} + +#endif /* QTNFMAC_UTIL_H */ |