12be7d22fSVladimir Kondratiev /* 202525a79SVladimir Kondratiev * Copyright (c) 2012-2014 Qualcomm Atheros, Inc. 32be7d22fSVladimir Kondratiev * 42be7d22fSVladimir Kondratiev * Permission to use, copy, modify, and/or distribute this software for any 52be7d22fSVladimir Kondratiev * purpose with or without fee is hereby granted, provided that the above 62be7d22fSVladimir Kondratiev * copyright notice and this permission notice appear in all copies. 72be7d22fSVladimir Kondratiev * 82be7d22fSVladimir Kondratiev * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 92be7d22fSVladimir Kondratiev * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 102be7d22fSVladimir Kondratiev * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 112be7d22fSVladimir Kondratiev * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 122be7d22fSVladimir Kondratiev * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 132be7d22fSVladimir Kondratiev * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 142be7d22fSVladimir Kondratiev * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 152be7d22fSVladimir Kondratiev */ 162be7d22fSVladimir Kondratiev 172be7d22fSVladimir Kondratiev #include <linux/moduleparam.h> 182be7d22fSVladimir Kondratiev #include <linux/if_arp.h> 19108d1eb6SVladimir Kondratiev #include <linux/etherdevice.h> 202be7d22fSVladimir Kondratiev 212be7d22fSVladimir Kondratiev #include "wil6210.h" 22b4490f42SVladimir Kondratiev #include "txrx.h" 23f172b563SDedy Lansky #include "wmi.h" 24f172b563SDedy Lansky 25f172b563SDedy Lansky #define WAIT_FOR_DISCONNECT_TIMEOUT_MS 2000 26f172b563SDedy Lansky #define WAIT_FOR_DISCONNECT_INTERVAL_MS 10 272be7d22fSVladimir Kondratiev 28c33407a8SVladimir Kondratiev bool no_fw_recovery; 29ed6f9dc6SVladimir Kondratiev module_param(no_fw_recovery, bool, S_IRUGO | S_IWUSR); 30c33407a8SVladimir Kondratiev MODULE_PARM_DESC(no_fw_recovery, " disable automatic FW error recovery"); 31ed6f9dc6SVladimir Kondratiev 32151a9706SVladimir Kondratiev static bool no_fw_load = true; 33151a9706SVladimir Kondratiev module_param(no_fw_load, bool, S_IRUGO | S_IWUSR); 34151a9706SVladimir Kondratiev MODULE_PARM_DESC(no_fw_load, " do not download FW, use one in on-card flash."); 35151a9706SVladimir Kondratiev 36b6b1b0ecSVladimir Kondratiev static unsigned int itr_trsh = WIL6210_ITR_TRSH_DEFAULT; 37b6b1b0ecSVladimir Kondratiev 38b6b1b0ecSVladimir Kondratiev module_param(itr_trsh, uint, S_IRUGO); 39b6b1b0ecSVladimir Kondratiev MODULE_PARM_DESC(itr_trsh, " Interrupt moderation threshold, usecs."); 40b6b1b0ecSVladimir Kondratiev 419a06bec9SVladimir Kondratiev /* We allow allocation of more than 1 page buffers to support large packets. 429a06bec9SVladimir Kondratiev * It is suboptimal behavior performance wise in case MTU above page size. 439a06bec9SVladimir Kondratiev */ 449a06bec9SVladimir Kondratiev unsigned int mtu_max = TXRX_BUF_LEN_DEFAULT - ETH_HLEN; 459a06bec9SVladimir Kondratiev static int mtu_max_set(const char *val, const struct kernel_param *kp) 469a06bec9SVladimir Kondratiev { 479a06bec9SVladimir Kondratiev int ret; 489a06bec9SVladimir Kondratiev 499a06bec9SVladimir Kondratiev /* sets mtu_max directly. no need to restore it in case of 509a06bec9SVladimir Kondratiev * illegal value since we assume this will fail insmod 519a06bec9SVladimir Kondratiev */ 529a06bec9SVladimir Kondratiev ret = param_set_uint(val, kp); 539a06bec9SVladimir Kondratiev if (ret) 549a06bec9SVladimir Kondratiev return ret; 559a06bec9SVladimir Kondratiev 569a06bec9SVladimir Kondratiev if (mtu_max < 68 || mtu_max > IEEE80211_MAX_DATA_LEN_DMG) 579a06bec9SVladimir Kondratiev ret = -EINVAL; 589a06bec9SVladimir Kondratiev 599a06bec9SVladimir Kondratiev return ret; 609a06bec9SVladimir Kondratiev } 619a06bec9SVladimir Kondratiev 629a06bec9SVladimir Kondratiev static struct kernel_param_ops mtu_max_ops = { 639a06bec9SVladimir Kondratiev .set = mtu_max_set, 649a06bec9SVladimir Kondratiev .get = param_get_uint, 659a06bec9SVladimir Kondratiev }; 669a06bec9SVladimir Kondratiev 679a06bec9SVladimir Kondratiev module_param_cb(mtu_max, &mtu_max_ops, &mtu_max, S_IRUGO); 689a06bec9SVladimir Kondratiev MODULE_PARM_DESC(mtu_max, " Max MTU value."); 699a06bec9SVladimir Kondratiev 70520d68e7SVladimir Kondratiev #define RST_DELAY (20) /* msec, for loop in @wil_target_reset */ 71520d68e7SVladimir Kondratiev #define RST_COUNT (1 + 1000/RST_DELAY) /* round up to be above 1 sec total */ 72520d68e7SVladimir Kondratiev 732be7d22fSVladimir Kondratiev /* 742be7d22fSVladimir Kondratiev * Due to a hardware issue, 752be7d22fSVladimir Kondratiev * one has to read/write to/from NIC in 32-bit chunks; 762be7d22fSVladimir Kondratiev * regular memcpy_fromio and siblings will 772be7d22fSVladimir Kondratiev * not work on 64-bit platform - it uses 64-bit transactions 782be7d22fSVladimir Kondratiev * 792be7d22fSVladimir Kondratiev * Force 32-bit transactions to enable NIC on 64-bit platforms 802be7d22fSVladimir Kondratiev * 812be7d22fSVladimir Kondratiev * To avoid byte swap on big endian host, __raw_{read|write}l 822be7d22fSVladimir Kondratiev * should be used - {read|write}l would swap bytes to provide 832be7d22fSVladimir Kondratiev * little endian on PCI value in host endianness. 842be7d22fSVladimir Kondratiev */ 852be7d22fSVladimir Kondratiev void wil_memcpy_fromio_32(void *dst, const volatile void __iomem *src, 862be7d22fSVladimir Kondratiev size_t count) 872be7d22fSVladimir Kondratiev { 882be7d22fSVladimir Kondratiev u32 *d = dst; 892be7d22fSVladimir Kondratiev const volatile u32 __iomem *s = src; 902be7d22fSVladimir Kondratiev 912be7d22fSVladimir Kondratiev /* size_t is unsigned, if (count%4 != 0) it will wrap */ 922be7d22fSVladimir Kondratiev for (count += 4; count > 4; count -= 4) 932be7d22fSVladimir Kondratiev *d++ = __raw_readl(s++); 942be7d22fSVladimir Kondratiev } 952be7d22fSVladimir Kondratiev 962be7d22fSVladimir Kondratiev void wil_memcpy_toio_32(volatile void __iomem *dst, const void *src, 972be7d22fSVladimir Kondratiev size_t count) 982be7d22fSVladimir Kondratiev { 992be7d22fSVladimir Kondratiev volatile u32 __iomem *d = dst; 1002be7d22fSVladimir Kondratiev const u32 *s = src; 1012be7d22fSVladimir Kondratiev 1022be7d22fSVladimir Kondratiev for (count += 4; count > 4; count -= 4) 1032be7d22fSVladimir Kondratiev __raw_writel(*s++, d++); 1042be7d22fSVladimir Kondratiev } 1052be7d22fSVladimir Kondratiev 106b516fcc5SVladimir Kondratiev static void wil_disconnect_cid(struct wil6210_priv *wil, int cid, 107b516fcc5SVladimir Kondratiev bool from_event) 1082be7d22fSVladimir Kondratiev { 10991886b0bSVladimir Kondratiev uint i; 110fc58f681SVladimir Kondratiev struct net_device *ndev = wil_to_ndev(wil); 111fc58f681SVladimir Kondratiev struct wireless_dev *wdev = wil->wdev; 112b4490f42SVladimir Kondratiev struct wil_sta_info *sta = &wil->sta[cid]; 1138fe59627SVladimir Kondratiev 114fc58f681SVladimir Kondratiev wil_dbg_misc(wil, "%s(CID %d, status %d)\n", __func__, cid, 115fc58f681SVladimir Kondratiev sta->status); 1164d55a0a1SVladimir Kondratiev 117e58c9f70SVladimir Kondratiev sta->data_port_open = false; 1184d55a0a1SVladimir Kondratiev if (sta->status != wil_sta_unused) { 119b516fcc5SVladimir Kondratiev if (!from_event) 120b516fcc5SVladimir Kondratiev wmi_disconnect_sta(wil, sta->addr, 121b516fcc5SVladimir Kondratiev WLAN_REASON_DEAUTH_LEAVING); 122b516fcc5SVladimir Kondratiev 123fc58f681SVladimir Kondratiev switch (wdev->iftype) { 124fc58f681SVladimir Kondratiev case NL80211_IFTYPE_AP: 125fc58f681SVladimir Kondratiev case NL80211_IFTYPE_P2P_GO: 126fc58f681SVladimir Kondratiev /* AP-like interface */ 127fc58f681SVladimir Kondratiev cfg80211_del_sta(ndev, sta->addr, GFP_KERNEL); 128fc58f681SVladimir Kondratiev break; 129fc58f681SVladimir Kondratiev default: 130fc58f681SVladimir Kondratiev break; 131fc58f681SVladimir Kondratiev } 1324d55a0a1SVladimir Kondratiev sta->status = wil_sta_unused; 1334d55a0a1SVladimir Kondratiev } 1344d55a0a1SVladimir Kondratiev 135b4490f42SVladimir Kondratiev for (i = 0; i < WIL_STA_TID_NUM; i++) { 136ec81b5adSDedy Lansky struct wil_tid_ampdu_rx *r; 137ec81b5adSDedy Lansky unsigned long flags; 138ec81b5adSDedy Lansky 139ec81b5adSDedy Lansky spin_lock_irqsave(&sta->tid_rx_lock, flags); 140ec81b5adSDedy Lansky 141ec81b5adSDedy Lansky r = sta->tid_rx[i]; 142b4490f42SVladimir Kondratiev sta->tid_rx[i] = NULL; 143b4490f42SVladimir Kondratiev wil_tid_ampdu_rx_free(wil, r); 144ec81b5adSDedy Lansky 145ec81b5adSDedy Lansky spin_unlock_irqrestore(&sta->tid_rx_lock, flags); 146b4490f42SVladimir Kondratiev } 14791886b0bSVladimir Kondratiev for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) { 14891886b0bSVladimir Kondratiev if (wil->vring2cid_tid[i][0] == cid) 14991886b0bSVladimir Kondratiev wil_vring_fini_tx(wil, i); 15091886b0bSVladimir Kondratiev } 15191886b0bSVladimir Kondratiev memset(&sta->stats, 0, sizeof(sta->stats)); 152b4490f42SVladimir Kondratiev } 153b4490f42SVladimir Kondratiev 154b516fcc5SVladimir Kondratiev static void _wil6210_disconnect(struct wil6210_priv *wil, const u8 *bssid, 155b516fcc5SVladimir Kondratiev bool from_event) 15691886b0bSVladimir Kondratiev { 15791886b0bSVladimir Kondratiev int cid = -ENOENT; 15891886b0bSVladimir Kondratiev struct net_device *ndev = wil_to_ndev(wil); 15991886b0bSVladimir Kondratiev struct wireless_dev *wdev = wil->wdev; 16091886b0bSVladimir Kondratiev 16191886b0bSVladimir Kondratiev might_sleep(); 16291886b0bSVladimir Kondratiev if (bssid) { 16391886b0bSVladimir Kondratiev cid = wil_find_cid(wil, bssid); 16491886b0bSVladimir Kondratiev wil_dbg_misc(wil, "%s(%pM, CID %d)\n", __func__, bssid, cid); 16591886b0bSVladimir Kondratiev } else { 16691886b0bSVladimir Kondratiev wil_dbg_misc(wil, "%s(all)\n", __func__); 16791886b0bSVladimir Kondratiev } 16891886b0bSVladimir Kondratiev 16991886b0bSVladimir Kondratiev if (cid >= 0) /* disconnect 1 peer */ 170b516fcc5SVladimir Kondratiev wil_disconnect_cid(wil, cid, from_event); 17191886b0bSVladimir Kondratiev else /* disconnect all */ 17291886b0bSVladimir Kondratiev for (cid = 0; cid < WIL6210_MAX_CID; cid++) 173b516fcc5SVladimir Kondratiev wil_disconnect_cid(wil, cid, from_event); 17491886b0bSVladimir Kondratiev 17591886b0bSVladimir Kondratiev /* link state */ 17691886b0bSVladimir Kondratiev switch (wdev->iftype) { 17791886b0bSVladimir Kondratiev case NL80211_IFTYPE_STATION: 17891886b0bSVladimir Kondratiev case NL80211_IFTYPE_P2P_CLIENT: 1792be7d22fSVladimir Kondratiev wil_link_off(wil); 180b338f74eSVladimir Kondratiev if (test_bit(wil_status_fwconnected, &wil->status)) { 1812be7d22fSVladimir Kondratiev clear_bit(wil_status_fwconnected, &wil->status); 182b338f74eSVladimir Kondratiev cfg80211_disconnected(ndev, 183b338f74eSVladimir Kondratiev WLAN_STATUS_UNSPECIFIED_FAILURE, 1842be7d22fSVladimir Kondratiev NULL, 0, GFP_KERNEL); 185b338f74eSVladimir Kondratiev } else if (test_bit(wil_status_fwconnecting, &wil->status)) { 1862be7d22fSVladimir Kondratiev cfg80211_connect_result(ndev, bssid, NULL, 0, NULL, 0, 1872be7d22fSVladimir Kondratiev WLAN_STATUS_UNSPECIFIED_FAILURE, 1882be7d22fSVladimir Kondratiev GFP_KERNEL); 1892be7d22fSVladimir Kondratiev } 190b338f74eSVladimir Kondratiev clear_bit(wil_status_fwconnecting, &wil->status); 19191886b0bSVladimir Kondratiev break; 19291886b0bSVladimir Kondratiev default: 19391886b0bSVladimir Kondratiev break; 19491886b0bSVladimir Kondratiev } 1952be7d22fSVladimir Kondratiev } 1962be7d22fSVladimir Kondratiev 1972be7d22fSVladimir Kondratiev static void wil_disconnect_worker(struct work_struct *work) 1982be7d22fSVladimir Kondratiev { 1992be7d22fSVladimir Kondratiev struct wil6210_priv *wil = container_of(work, 2002be7d22fSVladimir Kondratiev struct wil6210_priv, disconnect_worker); 2012be7d22fSVladimir Kondratiev 202097638a0SVladimir Kondratiev mutex_lock(&wil->mutex); 203b516fcc5SVladimir Kondratiev _wil6210_disconnect(wil, NULL, false); 204097638a0SVladimir Kondratiev mutex_unlock(&wil->mutex); 2052be7d22fSVladimir Kondratiev } 2062be7d22fSVladimir Kondratiev 2072be7d22fSVladimir Kondratiev static void wil_connect_timer_fn(ulong x) 2082be7d22fSVladimir Kondratiev { 2092be7d22fSVladimir Kondratiev struct wil6210_priv *wil = (void *)x; 2102be7d22fSVladimir Kondratiev 2117743882dSVladimir Kondratiev wil_dbg_misc(wil, "Connect timeout\n"); 2122be7d22fSVladimir Kondratiev 2132be7d22fSVladimir Kondratiev /* reschedule to thread context - disconnect won't 2142be7d22fSVladimir Kondratiev * run from atomic context 2152be7d22fSVladimir Kondratiev */ 2162be7d22fSVladimir Kondratiev schedule_work(&wil->disconnect_worker); 2172be7d22fSVladimir Kondratiev } 2182be7d22fSVladimir Kondratiev 219047e5d74SVladimir Kondratiev static void wil_scan_timer_fn(ulong x) 220047e5d74SVladimir Kondratiev { 221047e5d74SVladimir Kondratiev struct wil6210_priv *wil = (void *)x; 222047e5d74SVladimir Kondratiev 223047e5d74SVladimir Kondratiev clear_bit(wil_status_fwready, &wil->status); 224047e5d74SVladimir Kondratiev wil_err(wil, "Scan timeout detected, start fw error recovery\n"); 225047e5d74SVladimir Kondratiev schedule_work(&wil->fw_error_worker); 226047e5d74SVladimir Kondratiev } 227047e5d74SVladimir Kondratiev 228c33407a8SVladimir Kondratiev static int wil_wait_for_recovery(struct wil6210_priv *wil) 229c33407a8SVladimir Kondratiev { 230c33407a8SVladimir Kondratiev if (wait_event_interruptible(wil->wq, wil->recovery_state != 231c33407a8SVladimir Kondratiev fw_recovery_pending)) { 232c33407a8SVladimir Kondratiev wil_err(wil, "Interrupt, canceling recovery\n"); 233c33407a8SVladimir Kondratiev return -ERESTARTSYS; 234c33407a8SVladimir Kondratiev } 235c33407a8SVladimir Kondratiev if (wil->recovery_state != fw_recovery_running) { 236c33407a8SVladimir Kondratiev wil_info(wil, "Recovery cancelled\n"); 237c33407a8SVladimir Kondratiev return -EINTR; 238c33407a8SVladimir Kondratiev } 239c33407a8SVladimir Kondratiev wil_info(wil, "Proceed with recovery\n"); 240c33407a8SVladimir Kondratiev return 0; 241c33407a8SVladimir Kondratiev } 242c33407a8SVladimir Kondratiev 243c33407a8SVladimir Kondratiev void wil_set_recovery_state(struct wil6210_priv *wil, int state) 244c33407a8SVladimir Kondratiev { 245c33407a8SVladimir Kondratiev wil_dbg_misc(wil, "%s(%d -> %d)\n", __func__, 246c33407a8SVladimir Kondratiev wil->recovery_state, state); 247c33407a8SVladimir Kondratiev 248c33407a8SVladimir Kondratiev wil->recovery_state = state; 249c33407a8SVladimir Kondratiev wake_up_interruptible(&wil->wq); 250c33407a8SVladimir Kondratiev } 251c33407a8SVladimir Kondratiev 252ed6f9dc6SVladimir Kondratiev static void wil_fw_error_worker(struct work_struct *work) 253ed6f9dc6SVladimir Kondratiev { 254c33407a8SVladimir Kondratiev struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 255c33407a8SVladimir Kondratiev fw_error_worker); 256ed6f9dc6SVladimir Kondratiev struct wireless_dev *wdev = wil->wdev; 257ed6f9dc6SVladimir Kondratiev 258ed6f9dc6SVladimir Kondratiev wil_dbg_misc(wil, "fw error worker\n"); 259ed6f9dc6SVladimir Kondratiev 260cded9369SVladimir Kondratiev if (!netif_running(wil_to_ndev(wil))) { 261cded9369SVladimir Kondratiev wil_info(wil, "No recovery - interface is down\n"); 262cded9369SVladimir Kondratiev return; 263cded9369SVladimir Kondratiev } 264cded9369SVladimir Kondratiev 265fc219eedSVladimir Kondratiev /* increment @recovery_count if less then WIL6210_FW_RECOVERY_TO 266fc219eedSVladimir Kondratiev * passed since last recovery attempt 267fc219eedSVladimir Kondratiev */ 268fc219eedSVladimir Kondratiev if (time_is_after_jiffies(wil->last_fw_recovery + 269fc219eedSVladimir Kondratiev WIL6210_FW_RECOVERY_TO)) 270fc219eedSVladimir Kondratiev wil->recovery_count++; 271fc219eedSVladimir Kondratiev else 272fc219eedSVladimir Kondratiev wil->recovery_count = 1; /* fw was alive for a long time */ 273fc219eedSVladimir Kondratiev 274fc219eedSVladimir Kondratiev if (wil->recovery_count > WIL6210_FW_RECOVERY_RETRIES) { 275fc219eedSVladimir Kondratiev wil_err(wil, "too many recovery attempts (%d), giving up\n", 276fc219eedSVladimir Kondratiev wil->recovery_count); 277fc219eedSVladimir Kondratiev return; 278fc219eedSVladimir Kondratiev } 279fc219eedSVladimir Kondratiev 280fc219eedSVladimir Kondratiev wil->last_fw_recovery = jiffies; 281fc219eedSVladimir Kondratiev 2829c3bde56SVladimir Kondratiev mutex_lock(&wil->mutex); 283ed6f9dc6SVladimir Kondratiev switch (wdev->iftype) { 284ed6f9dc6SVladimir Kondratiev case NL80211_IFTYPE_STATION: 285ed6f9dc6SVladimir Kondratiev case NL80211_IFTYPE_P2P_CLIENT: 286ed6f9dc6SVladimir Kondratiev case NL80211_IFTYPE_MONITOR: 287c33407a8SVladimir Kondratiev wil_info(wil, "fw error recovery requested (try %d)...\n", 288fc219eedSVladimir Kondratiev wil->recovery_count); 289c33407a8SVladimir Kondratiev if (!no_fw_recovery) 290c33407a8SVladimir Kondratiev wil->recovery_state = fw_recovery_running; 291c33407a8SVladimir Kondratiev if (0 != wil_wait_for_recovery(wil)) 292c33407a8SVladimir Kondratiev break; 293c33407a8SVladimir Kondratiev 29473d839aeSVladimir Kondratiev __wil_down(wil); 29573d839aeSVladimir Kondratiev __wil_up(wil); 296ed6f9dc6SVladimir Kondratiev break; 297ed6f9dc6SVladimir Kondratiev case NL80211_IFTYPE_AP: 298ed6f9dc6SVladimir Kondratiev case NL80211_IFTYPE_P2P_GO: 299e240537bSVladimir Kondratiev wil_info(wil, "No recovery for AP-like interface\n"); 300ed6f9dc6SVladimir Kondratiev /* recovery in these modes is done by upper layers */ 301ed6f9dc6SVladimir Kondratiev break; 302ed6f9dc6SVladimir Kondratiev default: 303e240537bSVladimir Kondratiev wil_err(wil, "No recovery - unknown interface type %d\n", 304e240537bSVladimir Kondratiev wdev->iftype); 305ed6f9dc6SVladimir Kondratiev break; 306ed6f9dc6SVladimir Kondratiev } 3079c3bde56SVladimir Kondratiev mutex_unlock(&wil->mutex); 308ed6f9dc6SVladimir Kondratiev } 309ed6f9dc6SVladimir Kondratiev 3109a177384SVladimir Kondratiev static int wil_find_free_vring(struct wil6210_priv *wil) 3119a177384SVladimir Kondratiev { 3129a177384SVladimir Kondratiev int i; 3138fe59627SVladimir Kondratiev 3149a177384SVladimir Kondratiev for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) { 3159a177384SVladimir Kondratiev if (!wil->vring_tx[i].va) 3169a177384SVladimir Kondratiev return i; 3179a177384SVladimir Kondratiev } 3189a177384SVladimir Kondratiev return -EINVAL; 3199a177384SVladimir Kondratiev } 3209a177384SVladimir Kondratiev 321d81079f1SVladimir Kondratiev static void wil_connect_worker(struct work_struct *work) 322d81079f1SVladimir Kondratiev { 323d81079f1SVladimir Kondratiev int rc; 324d81079f1SVladimir Kondratiev struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 325d81079f1SVladimir Kondratiev connect_worker); 326d81079f1SVladimir Kondratiev int cid = wil->pending_connect_cid; 3279a177384SVladimir Kondratiev int ringid = wil_find_free_vring(wil); 328d81079f1SVladimir Kondratiev 329d81079f1SVladimir Kondratiev if (cid < 0) { 330d81079f1SVladimir Kondratiev wil_err(wil, "No connection pending\n"); 331d81079f1SVladimir Kondratiev return; 332d81079f1SVladimir Kondratiev } 333d81079f1SVladimir Kondratiev 334d81079f1SVladimir Kondratiev wil_dbg_wmi(wil, "Configure for connection CID %d\n", cid); 335d81079f1SVladimir Kondratiev 3369a177384SVladimir Kondratiev rc = wil_vring_init_tx(wil, ringid, WIL6210_TX_RING_SIZE, cid, 0); 337d81079f1SVladimir Kondratiev wil->pending_connect_cid = -1; 3383df2cd36SVladimir Kondratiev if (rc == 0) { 3393df2cd36SVladimir Kondratiev wil->sta[cid].status = wil_sta_connected; 340d81079f1SVladimir Kondratiev wil_link_on(wil); 3413df2cd36SVladimir Kondratiev } else { 3423df2cd36SVladimir Kondratiev wil->sta[cid].status = wil_sta_unused; 3433df2cd36SVladimir Kondratiev } 344d81079f1SVladimir Kondratiev } 345d81079f1SVladimir Kondratiev 3462be7d22fSVladimir Kondratiev int wil_priv_init(struct wil6210_priv *wil) 3472be7d22fSVladimir Kondratiev { 348ec81b5adSDedy Lansky uint i; 349ec81b5adSDedy Lansky 3507743882dSVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 3512be7d22fSVladimir Kondratiev 3523df2cd36SVladimir Kondratiev memset(wil->sta, 0, sizeof(wil->sta)); 353ec81b5adSDedy Lansky for (i = 0; i < WIL6210_MAX_CID; i++) 354ec81b5adSDedy Lansky spin_lock_init(&wil->sta[i].tid_rx_lock); 3553df2cd36SVladimir Kondratiev 3562be7d22fSVladimir Kondratiev mutex_init(&wil->mutex); 3572be7d22fSVladimir Kondratiev mutex_init(&wil->wmi_mutex); 3582be7d22fSVladimir Kondratiev 3592be7d22fSVladimir Kondratiev init_completion(&wil->wmi_ready); 36059502647SDedy Lansky init_completion(&wil->wmi_call); 3612be7d22fSVladimir Kondratiev 3622be7d22fSVladimir Kondratiev wil->pending_connect_cid = -1; 3632be7d22fSVladimir Kondratiev setup_timer(&wil->connect_timer, wil_connect_timer_fn, (ulong)wil); 364047e5d74SVladimir Kondratiev setup_timer(&wil->scan_timer, wil_scan_timer_fn, (ulong)wil); 3652be7d22fSVladimir Kondratiev 366d81079f1SVladimir Kondratiev INIT_WORK(&wil->connect_worker, wil_connect_worker); 3672be7d22fSVladimir Kondratiev INIT_WORK(&wil->disconnect_worker, wil_disconnect_worker); 3682be7d22fSVladimir Kondratiev INIT_WORK(&wil->wmi_event_worker, wmi_event_worker); 369ed6f9dc6SVladimir Kondratiev INIT_WORK(&wil->fw_error_worker, wil_fw_error_worker); 3702be7d22fSVladimir Kondratiev 3712be7d22fSVladimir Kondratiev INIT_LIST_HEAD(&wil->pending_wmi_ev); 3722be7d22fSVladimir Kondratiev spin_lock_init(&wil->wmi_ev_lock); 373c33407a8SVladimir Kondratiev init_waitqueue_head(&wil->wq); 3742be7d22fSVladimir Kondratiev 3752be7d22fSVladimir Kondratiev wil->wmi_wq = create_singlethread_workqueue(WIL_NAME"_wmi"); 3762be7d22fSVladimir Kondratiev if (!wil->wmi_wq) 3772be7d22fSVladimir Kondratiev return -EAGAIN; 3782be7d22fSVladimir Kondratiev 3792be7d22fSVladimir Kondratiev wil->wmi_wq_conn = create_singlethread_workqueue(WIL_NAME"_connect"); 3802be7d22fSVladimir Kondratiev if (!wil->wmi_wq_conn) { 3812be7d22fSVladimir Kondratiev destroy_workqueue(wil->wmi_wq); 3822be7d22fSVladimir Kondratiev return -EAGAIN; 3832be7d22fSVladimir Kondratiev } 3842be7d22fSVladimir Kondratiev 385fc219eedSVladimir Kondratiev wil->last_fw_recovery = jiffies; 386b6b1b0ecSVladimir Kondratiev wil->itr_trsh = itr_trsh; 387fc219eedSVladimir Kondratiev 3882be7d22fSVladimir Kondratiev return 0; 3892be7d22fSVladimir Kondratiev } 3902be7d22fSVladimir Kondratiev 391b516fcc5SVladimir Kondratiev /** 392b516fcc5SVladimir Kondratiev * wil6210_disconnect - disconnect one connection 393b516fcc5SVladimir Kondratiev * @wil: driver context 394b516fcc5SVladimir Kondratiev * @bssid: peer to disconnect, NULL to disconnect all 395b516fcc5SVladimir Kondratiev * @from_event: whether is invoked from FW event handler 396b516fcc5SVladimir Kondratiev * 397b516fcc5SVladimir Kondratiev * Disconnect and release associated resources. If invoked not from the 398b516fcc5SVladimir Kondratiev * FW event handler, issue WMI command(s) to trigger MAC disconnect. 399b516fcc5SVladimir Kondratiev */ 400b516fcc5SVladimir Kondratiev void wil6210_disconnect(struct wil6210_priv *wil, const u8 *bssid, 401b516fcc5SVladimir Kondratiev bool from_event) 4022be7d22fSVladimir Kondratiev { 4039cf10d62SVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 4049cf10d62SVladimir Kondratiev 4052be7d22fSVladimir Kondratiev del_timer_sync(&wil->connect_timer); 406b516fcc5SVladimir Kondratiev _wil6210_disconnect(wil, bssid, from_event); 4072be7d22fSVladimir Kondratiev } 4082be7d22fSVladimir Kondratiev 4092be7d22fSVladimir Kondratiev void wil_priv_deinit(struct wil6210_priv *wil) 4102be7d22fSVladimir Kondratiev { 4119cf10d62SVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 4129cf10d62SVladimir Kondratiev 413c33407a8SVladimir Kondratiev wil_set_recovery_state(wil, fw_recovery_idle); 414047e5d74SVladimir Kondratiev del_timer_sync(&wil->scan_timer); 4152be7d22fSVladimir Kondratiev cancel_work_sync(&wil->disconnect_worker); 416ed6f9dc6SVladimir Kondratiev cancel_work_sync(&wil->fw_error_worker); 417097638a0SVladimir Kondratiev mutex_lock(&wil->mutex); 418b516fcc5SVladimir Kondratiev wil6210_disconnect(wil, NULL, false); 419097638a0SVladimir Kondratiev mutex_unlock(&wil->mutex); 4202be7d22fSVladimir Kondratiev wmi_event_flush(wil); 4212be7d22fSVladimir Kondratiev destroy_workqueue(wil->wmi_wq_conn); 4222be7d22fSVladimir Kondratiev destroy_workqueue(wil->wmi_wq); 4232be7d22fSVladimir Kondratiev } 4242be7d22fSVladimir Kondratiev 425151a9706SVladimir Kondratiev /* target operations */ 426151a9706SVladimir Kondratiev /* register read */ 427151a9706SVladimir Kondratiev #define R(a) ioread32(wil->csr + HOSTADDR(a)) 428151a9706SVladimir Kondratiev /* register write. wmb() to make sure it is completed */ 429151a9706SVladimir Kondratiev #define W(a, v) do { iowrite32(v, wil->csr + HOSTADDR(a)); wmb(); } while (0) 430151a9706SVladimir Kondratiev /* register set = read, OR, write */ 431151a9706SVladimir Kondratiev #define S(a, v) W(a, R(a) | v) 432151a9706SVladimir Kondratiev /* register clear = read, AND with inverted, write */ 433151a9706SVladimir Kondratiev #define C(a, v) W(a, R(a) & ~v) 434151a9706SVladimir Kondratiev 435151a9706SVladimir Kondratiev static inline void wil_halt_cpu(struct wil6210_priv *wil) 436151a9706SVladimir Kondratiev { 437151a9706SVladimir Kondratiev W(RGF_USER_USER_CPU_0, BIT_USER_USER_CPU_MAN_RST); 438151a9706SVladimir Kondratiev W(RGF_USER_MAC_CPU_0, BIT_USER_MAC_CPU_MAN_RST); 439151a9706SVladimir Kondratiev } 440151a9706SVladimir Kondratiev 441151a9706SVladimir Kondratiev static inline void wil_release_cpu(struct wil6210_priv *wil) 442151a9706SVladimir Kondratiev { 443151a9706SVladimir Kondratiev /* Start CPU */ 444151a9706SVladimir Kondratiev W(RGF_USER_USER_CPU_0, 1); 445151a9706SVladimir Kondratiev } 446151a9706SVladimir Kondratiev 447bbb2adc7SVladimir Kondratiev static int wil_target_reset(struct wil6210_priv *wil) 4482be7d22fSVladimir Kondratiev { 44998a65b59SVladimir Kondratiev int delay = 0; 45048516298SVladimir Kondratiev u32 x; 45136b10a72SVladimir Kondratiev u32 rev_id; 4526508281bSVladimir Kondratiev bool is_sparrow = (wil->board->board == WIL_BOARD_SPARROW); 45336b10a72SVladimir Kondratiev 4546508281bSVladimir Kondratiev wil_dbg_misc(wil, "Resetting \"%s\"...\n", wil->board->name); 4552be7d22fSVladimir Kondratiev 45617123991SVladimir Kondratiev wil->hw_version = R(RGF_USER_FW_REV_ID); 45736b10a72SVladimir Kondratiev rev_id = wil->hw_version & 0xff; 4586508281bSVladimir Kondratiev 4596508281bSVladimir Kondratiev /* Clear MAC link up */ 4606508281bSVladimir Kondratiev S(RGF_HP_CTRL, BIT(15)); 461151a9706SVladimir Kondratiev S(RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_HPAL_PERST_FROM_PAD); 462151a9706SVladimir Kondratiev S(RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_CAR_PERST_RST); 463151a9706SVladimir Kondratiev 464151a9706SVladimir Kondratiev wil_halt_cpu(wil); 4652be7d22fSVladimir Kondratiev 4666508281bSVladimir Kondratiev if (is_sparrow) { 46748516298SVladimir Kondratiev S(RGF_CAF_OSC_CONTROL, BIT_CAF_OSC_XTAL_EN); 46848516298SVladimir Kondratiev /* XTAL stabilization should take about 3ms */ 46948516298SVladimir Kondratiev usleep_range(5000, 7000); 47048516298SVladimir Kondratiev x = R(RGF_CAF_PLL_LOCK_STATUS); 47148516298SVladimir Kondratiev if (!(x & BIT_CAF_OSC_DIG_XTAL_STABLE)) { 47248516298SVladimir Kondratiev wil_err(wil, "Xtal stabilization timeout\n" 47348516298SVladimir Kondratiev "RGF_CAF_PLL_LOCK_STATUS = 0x%08x\n", x); 47448516298SVladimir Kondratiev return -ETIME; 47548516298SVladimir Kondratiev } 47648516298SVladimir Kondratiev /* switch 10k to XTAL*/ 47748516298SVladimir Kondratiev C(RGF_USER_SPARROW_M_4, BIT_SPARROW_M_4_SEL_SLEEP_OR_REF); 47848516298SVladimir Kondratiev /* 40 MHz */ 47948516298SVladimir Kondratiev C(RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_CAR_AHB_SW_SEL); 48048516298SVladimir Kondratiev 4816508281bSVladimir Kondratiev W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0, 0x3ff81f); 482151a9706SVladimir Kondratiev W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1, 0xf); 4836508281bSVladimir Kondratiev } 4846508281bSVladimir Kondratiev 4852be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0xFE000000); 4862be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0x0000003F); 487151a9706SVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, is_sparrow ? 0x000000f0 : 0x00000170); 488151a9706SVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0xFFE7FE00); 4892be7d22fSVladimir Kondratiev 4906508281bSVladimir Kondratiev if (is_sparrow) { 4916508281bSVladimir Kondratiev W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0, 0x0); 492151a9706SVladimir Kondratiev W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1, 0x0); 4936508281bSVladimir Kondratiev } 4946508281bSVladimir Kondratiev 4952be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0); 4962be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0); 4972be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0); 4982be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0); 4992be7d22fSVladimir Kondratiev 5006508281bSVladimir Kondratiev if (is_sparrow) { 5016508281bSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x00000003); 5026508281bSVladimir Kondratiev /* reset A2 PCIE AHB */ 5036508281bSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x00008000); 5046508281bSVladimir Kondratiev } else { 5052be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x00000001); 50636b10a72SVladimir Kondratiev if (rev_id == 1) { 5076508281bSVladimir Kondratiev /* reset A1 BOTH PCIE AHB & PCIE RGF */ 5082be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x00000080); 50936b10a72SVladimir Kondratiev } else { 51017123991SVladimir Kondratiev W(RGF_PCIE_LOS_COUNTER_CTL, BIT(6) | BIT(8)); 51136b10a72SVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x00008000); 51236b10a72SVladimir Kondratiev } 5136508281bSVladimir Kondratiev } 5146508281bSVladimir Kondratiev 5156508281bSVladimir Kondratiev /* TODO: check order here!!! Erez code is different */ 5162be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0); 5172be7d22fSVladimir Kondratiev 518520d68e7SVladimir Kondratiev /* wait until device ready. typical time is 200..250 msec */ 51936b10a72SVladimir Kondratiev do { 520520d68e7SVladimir Kondratiev msleep(RST_DELAY); 52148516298SVladimir Kondratiev x = R(RGF_USER_HW_MACHINE_STATE); 522520d68e7SVladimir Kondratiev if (delay++ > RST_COUNT) { 523d28bcc30SVladimir Kondratiev wil_err(wil, "Reset not completed, hw_state 0x%08x\n", 52448516298SVladimir Kondratiev x); 525bbb2adc7SVladimir Kondratiev return -ETIME; 52636b10a72SVladimir Kondratiev } 52748516298SVladimir Kondratiev } while (x != HW_MACHINE_BOOT_DONE); 52836b10a72SVladimir Kondratiev 5296508281bSVladimir Kondratiev /* TODO: Erez check rev_id != 1 */ 5306508281bSVladimir Kondratiev if (!is_sparrow && (rev_id != 1)) 53117123991SVladimir Kondratiev W(RGF_PCIE_LOS_COUNTER_CTL, BIT(8)); 53236b10a72SVladimir Kondratiev 533972072aaSVladimir Kondratiev C(RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_RST_PWGD); 534972072aaSVladimir Kondratiev 535520d68e7SVladimir Kondratiev wil_dbg_misc(wil, "Reset completed in %d ms\n", delay * RST_DELAY); 536bbb2adc7SVladimir Kondratiev return 0; 537151a9706SVladimir Kondratiev } 5382be7d22fSVladimir Kondratiev 539b6b1b0ecSVladimir Kondratiev /** 540b6b1b0ecSVladimir Kondratiev * wil_set_itr_trsh: - apply interrupt coalescing params 541b6b1b0ecSVladimir Kondratiev */ 542b6b1b0ecSVladimir Kondratiev void wil_set_itr_trsh(struct wil6210_priv *wil) 543b6b1b0ecSVladimir Kondratiev { 544b6b1b0ecSVladimir Kondratiev /* disable, use usec resolution */ 545b6b1b0ecSVladimir Kondratiev W(RGF_DMA_ITR_CNT_CRL, BIT_DMA_ITR_CNT_CRL_EXT_TICK); 546b6b1b0ecSVladimir Kondratiev 547b6b1b0ecSVladimir Kondratiev /* disable interrupt moderation for monitor 548b6b1b0ecSVladimir Kondratiev * to get better timestamp precision 549b6b1b0ecSVladimir Kondratiev */ 550b6b1b0ecSVladimir Kondratiev if (wil->wdev->iftype == NL80211_IFTYPE_MONITOR) 551b6b1b0ecSVladimir Kondratiev return; 552b6b1b0ecSVladimir Kondratiev 553b6b1b0ecSVladimir Kondratiev wil_info(wil, "set ITR_TRSH = %d usec\n", wil->itr_trsh); 554b6b1b0ecSVladimir Kondratiev W(RGF_DMA_ITR_CNT_TRSH, wil->itr_trsh); 555b6b1b0ecSVladimir Kondratiev W(RGF_DMA_ITR_CNT_CRL, BIT_DMA_ITR_CNT_CRL_EN | 556b6b1b0ecSVladimir Kondratiev BIT_DMA_ITR_CNT_CRL_EXT_TICK); /* start it */ 557b6b1b0ecSVladimir Kondratiev } 558b6b1b0ecSVladimir Kondratiev 55936b10a72SVladimir Kondratiev #undef R 5602be7d22fSVladimir Kondratiev #undef W 5612be7d22fSVladimir Kondratiev #undef S 562972072aaSVladimir Kondratiev #undef C 5632be7d22fSVladimir Kondratiev 5642be7d22fSVladimir Kondratiev void wil_mbox_ring_le2cpus(struct wil6210_mbox_ring *r) 5652be7d22fSVladimir Kondratiev { 5662be7d22fSVladimir Kondratiev le32_to_cpus(&r->base); 5672be7d22fSVladimir Kondratiev le16_to_cpus(&r->entry_size); 5682be7d22fSVladimir Kondratiev le16_to_cpus(&r->size); 5692be7d22fSVladimir Kondratiev le32_to_cpus(&r->tail); 5702be7d22fSVladimir Kondratiev le32_to_cpus(&r->head); 5712be7d22fSVladimir Kondratiev } 5722be7d22fSVladimir Kondratiev 5732be7d22fSVladimir Kondratiev static int wil_wait_for_fw_ready(struct wil6210_priv *wil) 5742be7d22fSVladimir Kondratiev { 5752be7d22fSVladimir Kondratiev ulong to = msecs_to_jiffies(1000); 5762be7d22fSVladimir Kondratiev ulong left = wait_for_completion_timeout(&wil->wmi_ready, to); 5778fe59627SVladimir Kondratiev 5782be7d22fSVladimir Kondratiev if (0 == left) { 5792be7d22fSVladimir Kondratiev wil_err(wil, "Firmware not ready\n"); 5802be7d22fSVladimir Kondratiev return -ETIME; 5812be7d22fSVladimir Kondratiev } else { 58215e23124SVladimir Kondratiev wil_info(wil, "FW ready after %d ms. HW version 0x%08x\n", 58315e23124SVladimir Kondratiev jiffies_to_msecs(to-left), wil->hw_version); 5842be7d22fSVladimir Kondratiev } 5852be7d22fSVladimir Kondratiev return 0; 5862be7d22fSVladimir Kondratiev } 5872be7d22fSVladimir Kondratiev 5882be7d22fSVladimir Kondratiev /* 5892be7d22fSVladimir Kondratiev * We reset all the structures, and we reset the UMAC. 5902be7d22fSVladimir Kondratiev * After calling this routine, you're expected to reload 5912be7d22fSVladimir Kondratiev * the firmware. 5922be7d22fSVladimir Kondratiev */ 5932be7d22fSVladimir Kondratiev int wil_reset(struct wil6210_priv *wil) 5942be7d22fSVladimir Kondratiev { 5952be7d22fSVladimir Kondratiev int rc; 5962be7d22fSVladimir Kondratiev 5979cf10d62SVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 5989cf10d62SVladimir Kondratiev 599097638a0SVladimir Kondratiev WARN_ON(!mutex_is_locked(&wil->mutex)); 60073d839aeSVladimir Kondratiev WARN_ON(test_bit(wil_status_napi_en, &wil->status)); 601097638a0SVladimir Kondratiev 602097638a0SVladimir Kondratiev cancel_work_sync(&wil->disconnect_worker); 603b516fcc5SVladimir Kondratiev wil6210_disconnect(wil, NULL, false); 604097638a0SVladimir Kondratiev 6050fef1818SVladimir Kondratiev wil->status = 0; /* prevent NAPI from being scheduled */ 6060fef1818SVladimir Kondratiev 607ed6f9dc6SVladimir Kondratiev if (wil->scan_request) { 608ed6f9dc6SVladimir Kondratiev wil_dbg_misc(wil, "Abort scan_request 0x%p\n", 609ed6f9dc6SVladimir Kondratiev wil->scan_request); 610047e5d74SVladimir Kondratiev del_timer_sync(&wil->scan_timer); 611ed6f9dc6SVladimir Kondratiev cfg80211_scan_done(wil->scan_request, true); 612ed6f9dc6SVladimir Kondratiev wil->scan_request = NULL; 613ed6f9dc6SVladimir Kondratiev } 614ed6f9dc6SVladimir Kondratiev 615e4dbb093SVladimir Kondratiev wil_mask_irq(wil); 6162be7d22fSVladimir Kondratiev 617e08b5906SVladimir Kondratiev wmi_event_flush(wil); 618e08b5906SVladimir Kondratiev 619e08b5906SVladimir Kondratiev flush_workqueue(wil->wmi_wq_conn); 620e08b5906SVladimir Kondratiev flush_workqueue(wil->wmi_wq); 621e08b5906SVladimir Kondratiev 622bbb2adc7SVladimir Kondratiev rc = wil_target_reset(wil); 6238bf6adb9SVladimir Kondratiev wil_rx_fini(wil); 624bbb2adc7SVladimir Kondratiev if (rc) 625bbb2adc7SVladimir Kondratiev return rc; 626bbb2adc7SVladimir Kondratiev 627151a9706SVladimir Kondratiev if (!no_fw_load) { 628151a9706SVladimir Kondratiev wil_info(wil, "Use firmware <%s>\n", WIL_FW_NAME); 629151a9706SVladimir Kondratiev wil_halt_cpu(wil); 630151a9706SVladimir Kondratiev /* Loading f/w from the file */ 631151a9706SVladimir Kondratiev rc = wil_request_firmware(wil, WIL_FW_NAME); 632151a9706SVladimir Kondratiev if (rc) 633151a9706SVladimir Kondratiev return rc; 634151a9706SVladimir Kondratiev 635151a9706SVladimir Kondratiev /* clear any interrupts which on-card-firmware may have set */ 636151a9706SVladimir Kondratiev wil6210_clear_irq(wil); 637151a9706SVladimir Kondratiev { /* CAF_ICR - clear and mask */ 638151a9706SVladimir Kondratiev u32 a = HOSTADDR(RGF_CAF_ICR) + 639151a9706SVladimir Kondratiev offsetof(struct RGF_ICR, ICR); 640151a9706SVladimir Kondratiev u32 m = HOSTADDR(RGF_CAF_ICR) + 641151a9706SVladimir Kondratiev offsetof(struct RGF_ICR, IMV); 642151a9706SVladimir Kondratiev u32 icr = ioread32(wil->csr + a); 643151a9706SVladimir Kondratiev 644151a9706SVladimir Kondratiev iowrite32(icr, wil->csr + a); /* W1C */ 645151a9706SVladimir Kondratiev iowrite32(~0, wil->csr + m); 646151a9706SVladimir Kondratiev wmb(); /* wait for completion */ 647151a9706SVladimir Kondratiev } 648151a9706SVladimir Kondratiev wil_release_cpu(wil); 649151a9706SVladimir Kondratiev } else { 650151a9706SVladimir Kondratiev wil_info(wil, "Use firmware from on-card flash\n"); 651151a9706SVladimir Kondratiev } 6528bf6adb9SVladimir Kondratiev 6532be7d22fSVladimir Kondratiev /* init after reset */ 6542be7d22fSVladimir Kondratiev wil->pending_connect_cid = -1; 65516735d02SWolfram Sang reinit_completion(&wil->wmi_ready); 65659502647SDedy Lansky reinit_completion(&wil->wmi_call); 6572be7d22fSVladimir Kondratiev 658e4dbb093SVladimir Kondratiev wil_unmask_irq(wil); 6592be7d22fSVladimir Kondratiev 6602be7d22fSVladimir Kondratiev /* we just started MAC, wait for FW ready */ 6612be7d22fSVladimir Kondratiev rc = wil_wait_for_fw_ready(wil); 6622be7d22fSVladimir Kondratiev 6632be7d22fSVladimir Kondratiev return rc; 6642be7d22fSVladimir Kondratiev } 6652be7d22fSVladimir Kondratiev 666ed6f9dc6SVladimir Kondratiev void wil_fw_error_recovery(struct wil6210_priv *wil) 667ed6f9dc6SVladimir Kondratiev { 668ed6f9dc6SVladimir Kondratiev wil_dbg_misc(wil, "starting fw error recovery\n"); 669c33407a8SVladimir Kondratiev wil->recovery_state = fw_recovery_pending; 670ed6f9dc6SVladimir Kondratiev schedule_work(&wil->fw_error_worker); 671ed6f9dc6SVladimir Kondratiev } 6722be7d22fSVladimir Kondratiev 6732be7d22fSVladimir Kondratiev void wil_link_on(struct wil6210_priv *wil) 6742be7d22fSVladimir Kondratiev { 6752be7d22fSVladimir Kondratiev struct net_device *ndev = wil_to_ndev(wil); 6762be7d22fSVladimir Kondratiev 6777743882dSVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 6782be7d22fSVladimir Kondratiev 6792be7d22fSVladimir Kondratiev netif_carrier_on(ndev); 68055f8f680SVladimir Kondratiev wil_dbg_misc(wil, "netif_tx_wake : link on\n"); 6812be7d22fSVladimir Kondratiev netif_tx_wake_all_queues(ndev); 6822be7d22fSVladimir Kondratiev } 6832be7d22fSVladimir Kondratiev 6842be7d22fSVladimir Kondratiev void wil_link_off(struct wil6210_priv *wil) 6852be7d22fSVladimir Kondratiev { 6862be7d22fSVladimir Kondratiev struct net_device *ndev = wil_to_ndev(wil); 6872be7d22fSVladimir Kondratiev 6887743882dSVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 6892be7d22fSVladimir Kondratiev 6902be7d22fSVladimir Kondratiev netif_tx_stop_all_queues(ndev); 69155f8f680SVladimir Kondratiev wil_dbg_misc(wil, "netif_tx_stop : link off\n"); 6922be7d22fSVladimir Kondratiev netif_carrier_off(ndev); 6932be7d22fSVladimir Kondratiev } 6942be7d22fSVladimir Kondratiev 69573d839aeSVladimir Kondratiev int __wil_up(struct wil6210_priv *wil) 6962be7d22fSVladimir Kondratiev { 6972be7d22fSVladimir Kondratiev struct net_device *ndev = wil_to_ndev(wil); 6982be7d22fSVladimir Kondratiev struct wireless_dev *wdev = wil->wdev; 6992be7d22fSVladimir Kondratiev int rc; 7002be7d22fSVladimir Kondratiev 701097638a0SVladimir Kondratiev WARN_ON(!mutex_is_locked(&wil->mutex)); 702097638a0SVladimir Kondratiev 7032be7d22fSVladimir Kondratiev rc = wil_reset(wil); 7042be7d22fSVladimir Kondratiev if (rc) 7052be7d22fSVladimir Kondratiev return rc; 7062be7d22fSVladimir Kondratiev 707e31b2562SVladimir Kondratiev /* Rx VRING. After MAC and beacon */ 708e31b2562SVladimir Kondratiev rc = wil_rx_init(wil); 709e31b2562SVladimir Kondratiev if (rc) 710e31b2562SVladimir Kondratiev return rc; 711e31b2562SVladimir Kondratiev 7122be7d22fSVladimir Kondratiev switch (wdev->iftype) { 7132be7d22fSVladimir Kondratiev case NL80211_IFTYPE_STATION: 7147743882dSVladimir Kondratiev wil_dbg_misc(wil, "type: STATION\n"); 7152be7d22fSVladimir Kondratiev ndev->type = ARPHRD_ETHER; 7162be7d22fSVladimir Kondratiev break; 7172be7d22fSVladimir Kondratiev case NL80211_IFTYPE_AP: 7187743882dSVladimir Kondratiev wil_dbg_misc(wil, "type: AP\n"); 7192be7d22fSVladimir Kondratiev ndev->type = ARPHRD_ETHER; 7202be7d22fSVladimir Kondratiev break; 7212be7d22fSVladimir Kondratiev case NL80211_IFTYPE_P2P_CLIENT: 7227743882dSVladimir Kondratiev wil_dbg_misc(wil, "type: P2P_CLIENT\n"); 7232be7d22fSVladimir Kondratiev ndev->type = ARPHRD_ETHER; 7242be7d22fSVladimir Kondratiev break; 7252be7d22fSVladimir Kondratiev case NL80211_IFTYPE_P2P_GO: 7267743882dSVladimir Kondratiev wil_dbg_misc(wil, "type: P2P_GO\n"); 7272be7d22fSVladimir Kondratiev ndev->type = ARPHRD_ETHER; 7282be7d22fSVladimir Kondratiev break; 7292be7d22fSVladimir Kondratiev case NL80211_IFTYPE_MONITOR: 7307743882dSVladimir Kondratiev wil_dbg_misc(wil, "type: Monitor\n"); 7312be7d22fSVladimir Kondratiev ndev->type = ARPHRD_IEEE80211_RADIOTAP; 7322be7d22fSVladimir Kondratiev /* ARPHRD_IEEE80211 or ARPHRD_IEEE80211_RADIOTAP ? */ 7332be7d22fSVladimir Kondratiev break; 7342be7d22fSVladimir Kondratiev default: 7352be7d22fSVladimir Kondratiev return -EOPNOTSUPP; 7362be7d22fSVladimir Kondratiev } 7372be7d22fSVladimir Kondratiev 7382be7d22fSVladimir Kondratiev /* MAC address - pre-requisite for other commands */ 7392be7d22fSVladimir Kondratiev wmi_set_mac_address(wil, ndev->dev_addr); 7402be7d22fSVladimir Kondratiev 74173d839aeSVladimir Kondratiev wil_dbg_misc(wil, "NAPI enable\n"); 742e0287c4aSVladimir Kondratiev napi_enable(&wil->napi_rx); 743e0287c4aSVladimir Kondratiev napi_enable(&wil->napi_tx); 7440fef1818SVladimir Kondratiev set_bit(wil_status_napi_en, &wil->status); 745e0287c4aSVladimir Kondratiev 746f772ebfbSVladimir Kondratiev if (wil->platform_ops.bus_request) 747f772ebfbSVladimir Kondratiev wil->platform_ops.bus_request(wil->platform_handle, 748f772ebfbSVladimir Kondratiev WIL_MAX_BUS_REQUEST_KBPS); 749f772ebfbSVladimir Kondratiev 7502be7d22fSVladimir Kondratiev return 0; 7512be7d22fSVladimir Kondratiev } 7522be7d22fSVladimir Kondratiev 7532be7d22fSVladimir Kondratiev int wil_up(struct wil6210_priv *wil) 7542be7d22fSVladimir Kondratiev { 7552be7d22fSVladimir Kondratiev int rc; 7562be7d22fSVladimir Kondratiev 7579cf10d62SVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 7589cf10d62SVladimir Kondratiev 7592be7d22fSVladimir Kondratiev mutex_lock(&wil->mutex); 7602be7d22fSVladimir Kondratiev rc = __wil_up(wil); 7612be7d22fSVladimir Kondratiev mutex_unlock(&wil->mutex); 7622be7d22fSVladimir Kondratiev 7632be7d22fSVladimir Kondratiev return rc; 7642be7d22fSVladimir Kondratiev } 7652be7d22fSVladimir Kondratiev 76673d839aeSVladimir Kondratiev int __wil_down(struct wil6210_priv *wil) 7672be7d22fSVladimir Kondratiev { 768f172b563SDedy Lansky int iter = WAIT_FOR_DISCONNECT_TIMEOUT_MS / 769f172b563SDedy Lansky WAIT_FOR_DISCONNECT_INTERVAL_MS; 770f172b563SDedy Lansky 771097638a0SVladimir Kondratiev WARN_ON(!mutex_is_locked(&wil->mutex)); 772097638a0SVladimir Kondratiev 773f772ebfbSVladimir Kondratiev if (wil->platform_ops.bus_request) 774f772ebfbSVladimir Kondratiev wil->platform_ops.bus_request(wil->platform_handle, 0); 775f772ebfbSVladimir Kondratiev 77673d839aeSVladimir Kondratiev wil_disable_irq(wil); 77773d839aeSVladimir Kondratiev if (test_and_clear_bit(wil_status_napi_en, &wil->status)) { 778e0287c4aSVladimir Kondratiev napi_disable(&wil->napi_rx); 779e0287c4aSVladimir Kondratiev napi_disable(&wil->napi_tx); 78073d839aeSVladimir Kondratiev wil_dbg_misc(wil, "NAPI disable\n"); 78173d839aeSVladimir Kondratiev } 78273d839aeSVladimir Kondratiev wil_enable_irq(wil); 783e0287c4aSVladimir Kondratiev 7842be7d22fSVladimir Kondratiev if (wil->scan_request) { 7852a91d7d0SVladimir Kondratiev wil_dbg_misc(wil, "Abort scan_request 0x%p\n", 7862a91d7d0SVladimir Kondratiev wil->scan_request); 787047e5d74SVladimir Kondratiev del_timer_sync(&wil->scan_timer); 7882be7d22fSVladimir Kondratiev cfg80211_scan_done(wil->scan_request, true); 7892be7d22fSVladimir Kondratiev wil->scan_request = NULL; 7902be7d22fSVladimir Kondratiev } 7912be7d22fSVladimir Kondratiev 792f172b563SDedy Lansky if (test_bit(wil_status_fwconnected, &wil->status) || 793f172b563SDedy Lansky test_bit(wil_status_fwconnecting, &wil->status)) 794f172b563SDedy Lansky wmi_send(wil, WMI_DISCONNECT_CMDID, NULL, 0); 795f172b563SDedy Lansky 796f172b563SDedy Lansky /* make sure wil is idle (not connected) */ 797f172b563SDedy Lansky mutex_unlock(&wil->mutex); 798f172b563SDedy Lansky while (iter--) { 799f172b563SDedy Lansky int idle = !test_bit(wil_status_fwconnected, &wil->status) && 800f172b563SDedy Lansky !test_bit(wil_status_fwconnecting, &wil->status); 801f172b563SDedy Lansky if (idle) 802f172b563SDedy Lansky break; 803f172b563SDedy Lansky msleep(WAIT_FOR_DISCONNECT_INTERVAL_MS); 804f172b563SDedy Lansky } 805f172b563SDedy Lansky mutex_lock(&wil->mutex); 806f172b563SDedy Lansky 807f172b563SDedy Lansky if (!iter) 808f172b563SDedy Lansky wil_err(wil, "timeout waiting for idle FW/HW\n"); 809f172b563SDedy Lansky 8102be7d22fSVladimir Kondratiev wil_rx_fini(wil); 8112be7d22fSVladimir Kondratiev 8122be7d22fSVladimir Kondratiev return 0; 8132be7d22fSVladimir Kondratiev } 8142be7d22fSVladimir Kondratiev 8152be7d22fSVladimir Kondratiev int wil_down(struct wil6210_priv *wil) 8162be7d22fSVladimir Kondratiev { 8172be7d22fSVladimir Kondratiev int rc; 8182be7d22fSVladimir Kondratiev 8199cf10d62SVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 8209cf10d62SVladimir Kondratiev 821c33407a8SVladimir Kondratiev wil_set_recovery_state(wil, fw_recovery_idle); 8222be7d22fSVladimir Kondratiev mutex_lock(&wil->mutex); 8232be7d22fSVladimir Kondratiev rc = __wil_down(wil); 8242be7d22fSVladimir Kondratiev mutex_unlock(&wil->mutex); 8252be7d22fSVladimir Kondratiev 8262be7d22fSVladimir Kondratiev return rc; 8272be7d22fSVladimir Kondratiev } 8283df2cd36SVladimir Kondratiev 8293df2cd36SVladimir Kondratiev int wil_find_cid(struct wil6210_priv *wil, const u8 *mac) 8303df2cd36SVladimir Kondratiev { 8313df2cd36SVladimir Kondratiev int i; 8323df2cd36SVladimir Kondratiev int rc = -ENOENT; 8333df2cd36SVladimir Kondratiev 8343df2cd36SVladimir Kondratiev for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 8353df2cd36SVladimir Kondratiev if ((wil->sta[i].status != wil_sta_unused) && 836108d1eb6SVladimir Kondratiev ether_addr_equal(wil->sta[i].addr, mac)) { 8373df2cd36SVladimir Kondratiev rc = i; 8383df2cd36SVladimir Kondratiev break; 8393df2cd36SVladimir Kondratiev } 8403df2cd36SVladimir Kondratiev } 8413df2cd36SVladimir Kondratiev 8423df2cd36SVladimir Kondratiev return rc; 8433df2cd36SVladimir Kondratiev } 844