12be7d22fSVladimir Kondratiev /* 21f80af2eSVladimir Shulman * Copyright (c) 2012-2015 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 36ab954628SVladimir Kondratiev /* if not set via modparam, will be set to default value of 1/8 of 37ab954628SVladimir Kondratiev * rx ring size during init flow 38ab954628SVladimir Kondratiev */ 39ab954628SVladimir Kondratiev unsigned short rx_ring_overflow_thrsh = WIL6210_RX_HIGH_TRSH_INIT; 40ab954628SVladimir Kondratiev module_param(rx_ring_overflow_thrsh, ushort, S_IRUGO); 41ab954628SVladimir Kondratiev MODULE_PARM_DESC(rx_ring_overflow_thrsh, 42ab954628SVladimir Kondratiev " RX ring overflow threshold in descriptors."); 43b6b1b0ecSVladimir Kondratiev 449a06bec9SVladimir Kondratiev /* We allow allocation of more than 1 page buffers to support large packets. 459a06bec9SVladimir Kondratiev * It is suboptimal behavior performance wise in case MTU above page size. 469a06bec9SVladimir Kondratiev */ 47c44690a1SVladimir Kondratiev unsigned int mtu_max = TXRX_BUF_LEN_DEFAULT - WIL_MAX_MPDU_OVERHEAD; 489a06bec9SVladimir Kondratiev static int mtu_max_set(const char *val, const struct kernel_param *kp) 499a06bec9SVladimir Kondratiev { 509a06bec9SVladimir Kondratiev int ret; 519a06bec9SVladimir Kondratiev 529a06bec9SVladimir Kondratiev /* sets mtu_max directly. no need to restore it in case of 539a06bec9SVladimir Kondratiev * illegal value since we assume this will fail insmod 549a06bec9SVladimir Kondratiev */ 559a06bec9SVladimir Kondratiev ret = param_set_uint(val, kp); 569a06bec9SVladimir Kondratiev if (ret) 579a06bec9SVladimir Kondratiev return ret; 589a06bec9SVladimir Kondratiev 594590d812SVladimir Kondratiev if (mtu_max < 68 || mtu_max > WIL_MAX_ETH_MTU) 609a06bec9SVladimir Kondratiev ret = -EINVAL; 619a06bec9SVladimir Kondratiev 629a06bec9SVladimir Kondratiev return ret; 639a06bec9SVladimir Kondratiev } 649a06bec9SVladimir Kondratiev 659a06bec9SVladimir Kondratiev static struct kernel_param_ops mtu_max_ops = { 669a06bec9SVladimir Kondratiev .set = mtu_max_set, 679a06bec9SVladimir Kondratiev .get = param_get_uint, 689a06bec9SVladimir Kondratiev }; 699a06bec9SVladimir Kondratiev 709a06bec9SVladimir Kondratiev module_param_cb(mtu_max, &mtu_max_ops, &mtu_max, S_IRUGO); 719a06bec9SVladimir Kondratiev MODULE_PARM_DESC(mtu_max, " Max MTU value."); 729a06bec9SVladimir Kondratiev 73d3762b40SVladimir Kondratiev static uint rx_ring_order = WIL_RX_RING_SIZE_ORDER_DEFAULT; 74d3762b40SVladimir Kondratiev static uint tx_ring_order = WIL_TX_RING_SIZE_ORDER_DEFAULT; 75d3762b40SVladimir Kondratiev 76d3762b40SVladimir Kondratiev static int ring_order_set(const char *val, const struct kernel_param *kp) 77d3762b40SVladimir Kondratiev { 78d3762b40SVladimir Kondratiev int ret; 79d3762b40SVladimir Kondratiev uint x; 80d3762b40SVladimir Kondratiev 81d3762b40SVladimir Kondratiev ret = kstrtouint(val, 0, &x); 82d3762b40SVladimir Kondratiev if (ret) 83d3762b40SVladimir Kondratiev return ret; 84d3762b40SVladimir Kondratiev 85d3762b40SVladimir Kondratiev if ((x < WIL_RING_SIZE_ORDER_MIN) || (x > WIL_RING_SIZE_ORDER_MAX)) 86d3762b40SVladimir Kondratiev return -EINVAL; 87d3762b40SVladimir Kondratiev 88d3762b40SVladimir Kondratiev *((uint *)kp->arg) = x; 89d3762b40SVladimir Kondratiev 90d3762b40SVladimir Kondratiev return 0; 91d3762b40SVladimir Kondratiev } 92d3762b40SVladimir Kondratiev 93d3762b40SVladimir Kondratiev static struct kernel_param_ops ring_order_ops = { 94d3762b40SVladimir Kondratiev .set = ring_order_set, 95d3762b40SVladimir Kondratiev .get = param_get_uint, 96d3762b40SVladimir Kondratiev }; 97d3762b40SVladimir Kondratiev 98d3762b40SVladimir Kondratiev module_param_cb(rx_ring_order, &ring_order_ops, &rx_ring_order, S_IRUGO); 99d3762b40SVladimir Kondratiev MODULE_PARM_DESC(rx_ring_order, " Rx ring order; size = 1 << order"); 100d3762b40SVladimir Kondratiev module_param_cb(tx_ring_order, &ring_order_ops, &tx_ring_order, S_IRUGO); 101d3762b40SVladimir Kondratiev MODULE_PARM_DESC(tx_ring_order, " Tx ring order; size = 1 << order"); 102d3762b40SVladimir Kondratiev 103520d68e7SVladimir Kondratiev #define RST_DELAY (20) /* msec, for loop in @wil_target_reset */ 104520d68e7SVladimir Kondratiev #define RST_COUNT (1 + 1000/RST_DELAY) /* round up to be above 1 sec total */ 105520d68e7SVladimir Kondratiev 1062be7d22fSVladimir Kondratiev /* 1072be7d22fSVladimir Kondratiev * Due to a hardware issue, 1082be7d22fSVladimir Kondratiev * one has to read/write to/from NIC in 32-bit chunks; 1092be7d22fSVladimir Kondratiev * regular memcpy_fromio and siblings will 1102be7d22fSVladimir Kondratiev * not work on 64-bit platform - it uses 64-bit transactions 1112be7d22fSVladimir Kondratiev * 1122be7d22fSVladimir Kondratiev * Force 32-bit transactions to enable NIC on 64-bit platforms 1132be7d22fSVladimir Kondratiev * 1142be7d22fSVladimir Kondratiev * To avoid byte swap on big endian host, __raw_{read|write}l 1152be7d22fSVladimir Kondratiev * should be used - {read|write}l would swap bytes to provide 1162be7d22fSVladimir Kondratiev * little endian on PCI value in host endianness. 1172be7d22fSVladimir Kondratiev */ 1182be7d22fSVladimir Kondratiev void wil_memcpy_fromio_32(void *dst, const volatile void __iomem *src, 1192be7d22fSVladimir Kondratiev size_t count) 1202be7d22fSVladimir Kondratiev { 1212be7d22fSVladimir Kondratiev u32 *d = dst; 1222be7d22fSVladimir Kondratiev const volatile u32 __iomem *s = src; 1232be7d22fSVladimir Kondratiev 1242be7d22fSVladimir Kondratiev /* size_t is unsigned, if (count%4 != 0) it will wrap */ 1252be7d22fSVladimir Kondratiev for (count += 4; count > 4; count -= 4) 1262be7d22fSVladimir Kondratiev *d++ = __raw_readl(s++); 1272be7d22fSVladimir Kondratiev } 1282be7d22fSVladimir Kondratiev 1292be7d22fSVladimir Kondratiev void wil_memcpy_toio_32(volatile void __iomem *dst, const void *src, 1302be7d22fSVladimir Kondratiev size_t count) 1312be7d22fSVladimir Kondratiev { 1322be7d22fSVladimir Kondratiev volatile u32 __iomem *d = dst; 1332be7d22fSVladimir Kondratiev const u32 *s = src; 1342be7d22fSVladimir Kondratiev 1352be7d22fSVladimir Kondratiev for (count += 4; count > 4; count -= 4) 1362be7d22fSVladimir Kondratiev __raw_writel(*s++, d++); 1372be7d22fSVladimir Kondratiev } 1382be7d22fSVladimir Kondratiev 139b516fcc5SVladimir Kondratiev static void wil_disconnect_cid(struct wil6210_priv *wil, int cid, 1404821e6d8SVladimir Kondratiev u16 reason_code, bool from_event) 141bd33273bSVladimir Kondratiev __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock) 1422be7d22fSVladimir Kondratiev { 14391886b0bSVladimir Kondratiev uint i; 144fc58f681SVladimir Kondratiev struct net_device *ndev = wil_to_ndev(wil); 145fc58f681SVladimir Kondratiev struct wireless_dev *wdev = wil->wdev; 146b4490f42SVladimir Kondratiev struct wil_sta_info *sta = &wil->sta[cid]; 1478fe59627SVladimir Kondratiev 148bd33273bSVladimir Kondratiev might_sleep(); 149fc58f681SVladimir Kondratiev wil_dbg_misc(wil, "%s(CID %d, status %d)\n", __func__, cid, 150fc58f681SVladimir Kondratiev sta->status); 1514d55a0a1SVladimir Kondratiev 152e58c9f70SVladimir Kondratiev sta->data_port_open = false; 1534d55a0a1SVladimir Kondratiev if (sta->status != wil_sta_unused) { 154b516fcc5SVladimir Kondratiev if (!from_event) 1554821e6d8SVladimir Kondratiev wmi_disconnect_sta(wil, sta->addr, reason_code); 156b516fcc5SVladimir Kondratiev 157fc58f681SVladimir Kondratiev switch (wdev->iftype) { 158fc58f681SVladimir Kondratiev case NL80211_IFTYPE_AP: 159fc58f681SVladimir Kondratiev case NL80211_IFTYPE_P2P_GO: 160fc58f681SVladimir Kondratiev /* AP-like interface */ 161fc58f681SVladimir Kondratiev cfg80211_del_sta(ndev, sta->addr, GFP_KERNEL); 162fc58f681SVladimir Kondratiev break; 163fc58f681SVladimir Kondratiev default: 164fc58f681SVladimir Kondratiev break; 165fc58f681SVladimir Kondratiev } 1664d55a0a1SVladimir Kondratiev sta->status = wil_sta_unused; 1674d55a0a1SVladimir Kondratiev } 1684d55a0a1SVladimir Kondratiev 169b4490f42SVladimir Kondratiev for (i = 0; i < WIL_STA_TID_NUM; i++) { 170ec81b5adSDedy Lansky struct wil_tid_ampdu_rx *r; 171ec81b5adSDedy Lansky 172bd33273bSVladimir Kondratiev spin_lock_bh(&sta->tid_rx_lock); 173ec81b5adSDedy Lansky 174ec81b5adSDedy Lansky r = sta->tid_rx[i]; 175b4490f42SVladimir Kondratiev sta->tid_rx[i] = NULL; 176b4490f42SVladimir Kondratiev wil_tid_ampdu_rx_free(wil, r); 177ec81b5adSDedy Lansky 178bd33273bSVladimir Kondratiev spin_unlock_bh(&sta->tid_rx_lock); 179b4490f42SVladimir Kondratiev } 18091886b0bSVladimir Kondratiev for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) { 18191886b0bSVladimir Kondratiev if (wil->vring2cid_tid[i][0] == cid) 18291886b0bSVladimir Kondratiev wil_vring_fini_tx(wil, i); 18391886b0bSVladimir Kondratiev } 18491886b0bSVladimir Kondratiev memset(&sta->stats, 0, sizeof(sta->stats)); 185b4490f42SVladimir Kondratiev } 186b4490f42SVladimir Kondratiev 187b516fcc5SVladimir Kondratiev static void _wil6210_disconnect(struct wil6210_priv *wil, const u8 *bssid, 1884821e6d8SVladimir Kondratiev u16 reason_code, bool from_event) 18991886b0bSVladimir Kondratiev { 19091886b0bSVladimir Kondratiev int cid = -ENOENT; 19191886b0bSVladimir Kondratiev struct net_device *ndev = wil_to_ndev(wil); 19291886b0bSVladimir Kondratiev struct wireless_dev *wdev = wil->wdev; 19391886b0bSVladimir Kondratiev 19491886b0bSVladimir Kondratiev might_sleep(); 195100106d7SVladimir Kondratiev wil_dbg_misc(wil, "%s(bssid=%pM, reason=%d, ev%s)\n", __func__, bssid, 196100106d7SVladimir Kondratiev reason_code, from_event ? "+" : "-"); 19791886b0bSVladimir Kondratiev 198100106d7SVladimir Kondratiev /* Cases are: 199100106d7SVladimir Kondratiev * - disconnect single STA, still connected 200100106d7SVladimir Kondratiev * - disconnect single STA, already disconnected 201100106d7SVladimir Kondratiev * - disconnect all 202100106d7SVladimir Kondratiev * 203100106d7SVladimir Kondratiev * For "disconnect all", there are 2 options: 204100106d7SVladimir Kondratiev * - bssid == NULL 205100106d7SVladimir Kondratiev * - bssid is our MAC address 206100106d7SVladimir Kondratiev */ 207100106d7SVladimir Kondratiev if (bssid && memcmp(ndev->dev_addr, bssid, ETH_ALEN)) { 208100106d7SVladimir Kondratiev cid = wil_find_cid(wil, bssid); 209100106d7SVladimir Kondratiev wil_dbg_misc(wil, "Disconnect %pM, CID=%d, reason=%d\n", 210100106d7SVladimir Kondratiev bssid, cid, reason_code); 21191886b0bSVladimir Kondratiev if (cid >= 0) /* disconnect 1 peer */ 2124821e6d8SVladimir Kondratiev wil_disconnect_cid(wil, cid, reason_code, from_event); 213100106d7SVladimir Kondratiev } else { /* all */ 214100106d7SVladimir Kondratiev wil_dbg_misc(wil, "Disconnect all\n"); 21591886b0bSVladimir Kondratiev for (cid = 0; cid < WIL6210_MAX_CID; cid++) 2164821e6d8SVladimir Kondratiev wil_disconnect_cid(wil, cid, reason_code, from_event); 217100106d7SVladimir Kondratiev } 21891886b0bSVladimir Kondratiev 21991886b0bSVladimir Kondratiev /* link state */ 22091886b0bSVladimir Kondratiev switch (wdev->iftype) { 22191886b0bSVladimir Kondratiev case NL80211_IFTYPE_STATION: 22291886b0bSVladimir Kondratiev case NL80211_IFTYPE_P2P_CLIENT: 223c5e96c91SDedy Lansky netif_tx_stop_all_queues(ndev); 224c5e96c91SDedy Lansky netif_carrier_off(ndev); 225c5e96c91SDedy Lansky 2269419b6a2SVladimir Kondratiev if (test_bit(wil_status_fwconnected, wil->status)) { 2279419b6a2SVladimir Kondratiev clear_bit(wil_status_fwconnected, wil->status); 2284821e6d8SVladimir Kondratiev cfg80211_disconnected(ndev, reason_code, 2292be7d22fSVladimir Kondratiev NULL, 0, GFP_KERNEL); 2309419b6a2SVladimir Kondratiev } else if (test_bit(wil_status_fwconnecting, wil->status)) { 2312be7d22fSVladimir Kondratiev cfg80211_connect_result(ndev, bssid, NULL, 0, NULL, 0, 2322be7d22fSVladimir Kondratiev WLAN_STATUS_UNSPECIFIED_FAILURE, 2332be7d22fSVladimir Kondratiev GFP_KERNEL); 2342be7d22fSVladimir Kondratiev } 2359419b6a2SVladimir Kondratiev clear_bit(wil_status_fwconnecting, wil->status); 23691886b0bSVladimir Kondratiev break; 23791886b0bSVladimir Kondratiev default: 23891886b0bSVladimir Kondratiev break; 23991886b0bSVladimir Kondratiev } 2402be7d22fSVladimir Kondratiev } 2412be7d22fSVladimir Kondratiev 2422be7d22fSVladimir Kondratiev static void wil_disconnect_worker(struct work_struct *work) 2432be7d22fSVladimir Kondratiev { 2442be7d22fSVladimir Kondratiev struct wil6210_priv *wil = container_of(work, 2452be7d22fSVladimir Kondratiev struct wil6210_priv, disconnect_worker); 2462be7d22fSVladimir Kondratiev 247097638a0SVladimir Kondratiev mutex_lock(&wil->mutex); 2484821e6d8SVladimir Kondratiev _wil6210_disconnect(wil, NULL, WLAN_REASON_UNSPECIFIED, false); 249097638a0SVladimir Kondratiev mutex_unlock(&wil->mutex); 2502be7d22fSVladimir Kondratiev } 2512be7d22fSVladimir Kondratiev 2522be7d22fSVladimir Kondratiev static void wil_connect_timer_fn(ulong x) 2532be7d22fSVladimir Kondratiev { 2542be7d22fSVladimir Kondratiev struct wil6210_priv *wil = (void *)x; 2552be7d22fSVladimir Kondratiev 2567743882dSVladimir Kondratiev wil_dbg_misc(wil, "Connect timeout\n"); 2572be7d22fSVladimir Kondratiev 2582be7d22fSVladimir Kondratiev /* reschedule to thread context - disconnect won't 2592be7d22fSVladimir Kondratiev * run from atomic context 2602be7d22fSVladimir Kondratiev */ 2612be7d22fSVladimir Kondratiev schedule_work(&wil->disconnect_worker); 2622be7d22fSVladimir Kondratiev } 2632be7d22fSVladimir Kondratiev 264047e5d74SVladimir Kondratiev static void wil_scan_timer_fn(ulong x) 265047e5d74SVladimir Kondratiev { 266047e5d74SVladimir Kondratiev struct wil6210_priv *wil = (void *)x; 267047e5d74SVladimir Kondratiev 2689419b6a2SVladimir Kondratiev clear_bit(wil_status_fwready, wil->status); 269047e5d74SVladimir Kondratiev wil_err(wil, "Scan timeout detected, start fw error recovery\n"); 27060abbb6eSVladimir Kondratiev wil->recovery_state = fw_recovery_pending; 271047e5d74SVladimir Kondratiev schedule_work(&wil->fw_error_worker); 272047e5d74SVladimir Kondratiev } 273047e5d74SVladimir Kondratiev 274c33407a8SVladimir Kondratiev static int wil_wait_for_recovery(struct wil6210_priv *wil) 275c33407a8SVladimir Kondratiev { 276c33407a8SVladimir Kondratiev if (wait_event_interruptible(wil->wq, wil->recovery_state != 277c33407a8SVladimir Kondratiev fw_recovery_pending)) { 278c33407a8SVladimir Kondratiev wil_err(wil, "Interrupt, canceling recovery\n"); 279c33407a8SVladimir Kondratiev return -ERESTARTSYS; 280c33407a8SVladimir Kondratiev } 281c33407a8SVladimir Kondratiev if (wil->recovery_state != fw_recovery_running) { 282c33407a8SVladimir Kondratiev wil_info(wil, "Recovery cancelled\n"); 283c33407a8SVladimir Kondratiev return -EINTR; 284c33407a8SVladimir Kondratiev } 285c33407a8SVladimir Kondratiev wil_info(wil, "Proceed with recovery\n"); 286c33407a8SVladimir Kondratiev return 0; 287c33407a8SVladimir Kondratiev } 288c33407a8SVladimir Kondratiev 289c33407a8SVladimir Kondratiev void wil_set_recovery_state(struct wil6210_priv *wil, int state) 290c33407a8SVladimir Kondratiev { 291c33407a8SVladimir Kondratiev wil_dbg_misc(wil, "%s(%d -> %d)\n", __func__, 292c33407a8SVladimir Kondratiev wil->recovery_state, state); 293c33407a8SVladimir Kondratiev 294c33407a8SVladimir Kondratiev wil->recovery_state = state; 295c33407a8SVladimir Kondratiev wake_up_interruptible(&wil->wq); 296c33407a8SVladimir Kondratiev } 297c33407a8SVladimir Kondratiev 298ed6f9dc6SVladimir Kondratiev static void wil_fw_error_worker(struct work_struct *work) 299ed6f9dc6SVladimir Kondratiev { 300c33407a8SVladimir Kondratiev struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 301c33407a8SVladimir Kondratiev fw_error_worker); 302ed6f9dc6SVladimir Kondratiev struct wireless_dev *wdev = wil->wdev; 303ed6f9dc6SVladimir Kondratiev 304ed6f9dc6SVladimir Kondratiev wil_dbg_misc(wil, "fw error worker\n"); 305ed6f9dc6SVladimir Kondratiev 306cded9369SVladimir Kondratiev if (!netif_running(wil_to_ndev(wil))) { 307cded9369SVladimir Kondratiev wil_info(wil, "No recovery - interface is down\n"); 308cded9369SVladimir Kondratiev return; 309cded9369SVladimir Kondratiev } 310cded9369SVladimir Kondratiev 311fc219eedSVladimir Kondratiev /* increment @recovery_count if less then WIL6210_FW_RECOVERY_TO 312fc219eedSVladimir Kondratiev * passed since last recovery attempt 313fc219eedSVladimir Kondratiev */ 314fc219eedSVladimir Kondratiev if (time_is_after_jiffies(wil->last_fw_recovery + 315fc219eedSVladimir Kondratiev WIL6210_FW_RECOVERY_TO)) 316fc219eedSVladimir Kondratiev wil->recovery_count++; 317fc219eedSVladimir Kondratiev else 318fc219eedSVladimir Kondratiev wil->recovery_count = 1; /* fw was alive for a long time */ 319fc219eedSVladimir Kondratiev 320fc219eedSVladimir Kondratiev if (wil->recovery_count > WIL6210_FW_RECOVERY_RETRIES) { 321fc219eedSVladimir Kondratiev wil_err(wil, "too many recovery attempts (%d), giving up\n", 322fc219eedSVladimir Kondratiev wil->recovery_count); 323fc219eedSVladimir Kondratiev return; 324fc219eedSVladimir Kondratiev } 325fc219eedSVladimir Kondratiev 326fc219eedSVladimir Kondratiev wil->last_fw_recovery = jiffies; 327fc219eedSVladimir Kondratiev 3289c3bde56SVladimir Kondratiev mutex_lock(&wil->mutex); 329ed6f9dc6SVladimir Kondratiev switch (wdev->iftype) { 330ed6f9dc6SVladimir Kondratiev case NL80211_IFTYPE_STATION: 331ed6f9dc6SVladimir Kondratiev case NL80211_IFTYPE_P2P_CLIENT: 332ed6f9dc6SVladimir Kondratiev case NL80211_IFTYPE_MONITOR: 333c33407a8SVladimir Kondratiev wil_info(wil, "fw error recovery requested (try %d)...\n", 334fc219eedSVladimir Kondratiev wil->recovery_count); 335c33407a8SVladimir Kondratiev if (!no_fw_recovery) 336c33407a8SVladimir Kondratiev wil->recovery_state = fw_recovery_running; 337c33407a8SVladimir Kondratiev if (0 != wil_wait_for_recovery(wil)) 338c33407a8SVladimir Kondratiev break; 339c33407a8SVladimir Kondratiev 34073d839aeSVladimir Kondratiev __wil_down(wil); 34173d839aeSVladimir Kondratiev __wil_up(wil); 342ed6f9dc6SVladimir Kondratiev break; 343ed6f9dc6SVladimir Kondratiev case NL80211_IFTYPE_AP: 344ed6f9dc6SVladimir Kondratiev case NL80211_IFTYPE_P2P_GO: 345e240537bSVladimir Kondratiev wil_info(wil, "No recovery for AP-like interface\n"); 346ed6f9dc6SVladimir Kondratiev /* recovery in these modes is done by upper layers */ 347ed6f9dc6SVladimir Kondratiev break; 348ed6f9dc6SVladimir Kondratiev default: 349e240537bSVladimir Kondratiev wil_err(wil, "No recovery - unknown interface type %d\n", 350e240537bSVladimir Kondratiev wdev->iftype); 351ed6f9dc6SVladimir Kondratiev break; 352ed6f9dc6SVladimir Kondratiev } 3539c3bde56SVladimir Kondratiev mutex_unlock(&wil->mutex); 354ed6f9dc6SVladimir Kondratiev } 355ed6f9dc6SVladimir Kondratiev 3569a177384SVladimir Kondratiev static int wil_find_free_vring(struct wil6210_priv *wil) 3579a177384SVladimir Kondratiev { 3589a177384SVladimir Kondratiev int i; 3598fe59627SVladimir Kondratiev 3609a177384SVladimir Kondratiev for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) { 3619a177384SVladimir Kondratiev if (!wil->vring_tx[i].va) 3629a177384SVladimir Kondratiev return i; 3639a177384SVladimir Kondratiev } 3649a177384SVladimir Kondratiev return -EINVAL; 3659a177384SVladimir Kondratiev } 3669a177384SVladimir Kondratiev 367d81079f1SVladimir Kondratiev static void wil_connect_worker(struct work_struct *work) 368d81079f1SVladimir Kondratiev { 369d81079f1SVladimir Kondratiev int rc; 370d81079f1SVladimir Kondratiev struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 371d81079f1SVladimir Kondratiev connect_worker); 372c5e96c91SDedy Lansky struct net_device *ndev = wil_to_ndev(wil); 373c5e96c91SDedy Lansky 374d81079f1SVladimir Kondratiev int cid = wil->pending_connect_cid; 3759a177384SVladimir Kondratiev int ringid = wil_find_free_vring(wil); 376d81079f1SVladimir Kondratiev 377d81079f1SVladimir Kondratiev if (cid < 0) { 378d81079f1SVladimir Kondratiev wil_err(wil, "No connection pending\n"); 379d81079f1SVladimir Kondratiev return; 380d81079f1SVladimir Kondratiev } 381d81079f1SVladimir Kondratiev 382d81079f1SVladimir Kondratiev wil_dbg_wmi(wil, "Configure for connection CID %d\n", cid); 383d81079f1SVladimir Kondratiev 384d3762b40SVladimir Kondratiev rc = wil_vring_init_tx(wil, ringid, 1 << tx_ring_order, cid, 0); 385d81079f1SVladimir Kondratiev wil->pending_connect_cid = -1; 3863df2cd36SVladimir Kondratiev if (rc == 0) { 3873df2cd36SVladimir Kondratiev wil->sta[cid].status = wil_sta_connected; 388c5e96c91SDedy Lansky netif_tx_wake_all_queues(ndev); 3893df2cd36SVladimir Kondratiev } else { 3903df2cd36SVladimir Kondratiev wil->sta[cid].status = wil_sta_unused; 3913df2cd36SVladimir Kondratiev } 392d81079f1SVladimir Kondratiev } 393d81079f1SVladimir Kondratiev 3942be7d22fSVladimir Kondratiev int wil_priv_init(struct wil6210_priv *wil) 3952be7d22fSVladimir Kondratiev { 396ec81b5adSDedy Lansky uint i; 397ec81b5adSDedy Lansky 3987743882dSVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 3992be7d22fSVladimir Kondratiev 4003df2cd36SVladimir Kondratiev memset(wil->sta, 0, sizeof(wil->sta)); 401ec81b5adSDedy Lansky for (i = 0; i < WIL6210_MAX_CID; i++) 402ec81b5adSDedy Lansky spin_lock_init(&wil->sta[i].tid_rx_lock); 4033df2cd36SVladimir Kondratiev 4042be7d22fSVladimir Kondratiev mutex_init(&wil->mutex); 4052be7d22fSVladimir Kondratiev mutex_init(&wil->wmi_mutex); 4063277213fSVladimir Kondratiev mutex_init(&wil->back_rx_mutex); 4073a124ed6SVladimir Kondratiev mutex_init(&wil->back_tx_mutex); 40840822a90SVladimir Kondratiev mutex_init(&wil->probe_client_mutex); 4092be7d22fSVladimir Kondratiev 4102be7d22fSVladimir Kondratiev init_completion(&wil->wmi_ready); 41159502647SDedy Lansky init_completion(&wil->wmi_call); 4122be7d22fSVladimir Kondratiev 4132be7d22fSVladimir Kondratiev wil->pending_connect_cid = -1; 4142be7d22fSVladimir Kondratiev setup_timer(&wil->connect_timer, wil_connect_timer_fn, (ulong)wil); 415047e5d74SVladimir Kondratiev setup_timer(&wil->scan_timer, wil_scan_timer_fn, (ulong)wil); 4162be7d22fSVladimir Kondratiev 417d81079f1SVladimir Kondratiev INIT_WORK(&wil->connect_worker, wil_connect_worker); 4182be7d22fSVladimir Kondratiev INIT_WORK(&wil->disconnect_worker, wil_disconnect_worker); 4192be7d22fSVladimir Kondratiev INIT_WORK(&wil->wmi_event_worker, wmi_event_worker); 420ed6f9dc6SVladimir Kondratiev INIT_WORK(&wil->fw_error_worker, wil_fw_error_worker); 4213277213fSVladimir Kondratiev INIT_WORK(&wil->back_rx_worker, wil_back_rx_worker); 4223a124ed6SVladimir Kondratiev INIT_WORK(&wil->back_tx_worker, wil_back_tx_worker); 42340822a90SVladimir Kondratiev INIT_WORK(&wil->probe_client_worker, wil_probe_client_worker); 4242be7d22fSVladimir Kondratiev 4252be7d22fSVladimir Kondratiev INIT_LIST_HEAD(&wil->pending_wmi_ev); 4263277213fSVladimir Kondratiev INIT_LIST_HEAD(&wil->back_rx_pending); 4273a124ed6SVladimir Kondratiev INIT_LIST_HEAD(&wil->back_tx_pending); 42840822a90SVladimir Kondratiev INIT_LIST_HEAD(&wil->probe_client_pending); 4292be7d22fSVladimir Kondratiev spin_lock_init(&wil->wmi_ev_lock); 430c33407a8SVladimir Kondratiev init_waitqueue_head(&wil->wq); 4312be7d22fSVladimir Kondratiev 4322be7d22fSVladimir Kondratiev wil->wmi_wq = create_singlethread_workqueue(WIL_NAME "_wmi"); 4332be7d22fSVladimir Kondratiev if (!wil->wmi_wq) 4342be7d22fSVladimir Kondratiev return -EAGAIN; 4352be7d22fSVladimir Kondratiev 4363277213fSVladimir Kondratiev wil->wq_service = create_singlethread_workqueue(WIL_NAME "_service"); 4373277213fSVladimir Kondratiev if (!wil->wq_service) 4383277213fSVladimir Kondratiev goto out_wmi_wq; 4392be7d22fSVladimir Kondratiev 440fc219eedSVladimir Kondratiev wil->last_fw_recovery = jiffies; 4411f80af2eSVladimir Shulman wil->tx_interframe_timeout = WIL6210_ITR_TX_INTERFRAME_TIMEOUT_DEFAULT; 4421f80af2eSVladimir Shulman wil->rx_interframe_timeout = WIL6210_ITR_RX_INTERFRAME_TIMEOUT_DEFAULT; 4431f80af2eSVladimir Shulman wil->tx_max_burst_duration = WIL6210_ITR_TX_MAX_BURST_DURATION_DEFAULT; 4441f80af2eSVladimir Shulman wil->rx_max_burst_duration = WIL6210_ITR_RX_MAX_BURST_DURATION_DEFAULT; 445fc219eedSVladimir Kondratiev 446ab954628SVladimir Kondratiev if (rx_ring_overflow_thrsh == WIL6210_RX_HIGH_TRSH_INIT) 447ab954628SVladimir Kondratiev rx_ring_overflow_thrsh = WIL6210_RX_HIGH_TRSH_DEFAULT; 4482be7d22fSVladimir Kondratiev return 0; 4493277213fSVladimir Kondratiev 4503277213fSVladimir Kondratiev out_wmi_wq: 4513277213fSVladimir Kondratiev destroy_workqueue(wil->wmi_wq); 4523277213fSVladimir Kondratiev 4533277213fSVladimir Kondratiev return -EAGAIN; 4542be7d22fSVladimir Kondratiev } 4552be7d22fSVladimir Kondratiev 456b516fcc5SVladimir Kondratiev /** 457b516fcc5SVladimir Kondratiev * wil6210_disconnect - disconnect one connection 458b516fcc5SVladimir Kondratiev * @wil: driver context 459b516fcc5SVladimir Kondratiev * @bssid: peer to disconnect, NULL to disconnect all 4604821e6d8SVladimir Kondratiev * @reason_code: Reason code for the Disassociation frame 461b516fcc5SVladimir Kondratiev * @from_event: whether is invoked from FW event handler 462b516fcc5SVladimir Kondratiev * 463b516fcc5SVladimir Kondratiev * Disconnect and release associated resources. If invoked not from the 464b516fcc5SVladimir Kondratiev * FW event handler, issue WMI command(s) to trigger MAC disconnect. 465b516fcc5SVladimir Kondratiev */ 466b516fcc5SVladimir Kondratiev void wil6210_disconnect(struct wil6210_priv *wil, const u8 *bssid, 4674821e6d8SVladimir Kondratiev u16 reason_code, bool from_event) 4682be7d22fSVladimir Kondratiev { 4699cf10d62SVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 4709cf10d62SVladimir Kondratiev 4712be7d22fSVladimir Kondratiev del_timer_sync(&wil->connect_timer); 4724821e6d8SVladimir Kondratiev _wil6210_disconnect(wil, bssid, reason_code, from_event); 4732be7d22fSVladimir Kondratiev } 4742be7d22fSVladimir Kondratiev 4752be7d22fSVladimir Kondratiev void wil_priv_deinit(struct wil6210_priv *wil) 4762be7d22fSVladimir Kondratiev { 4779cf10d62SVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 4789cf10d62SVladimir Kondratiev 479c33407a8SVladimir Kondratiev wil_set_recovery_state(wil, fw_recovery_idle); 480047e5d74SVladimir Kondratiev del_timer_sync(&wil->scan_timer); 4812be7d22fSVladimir Kondratiev cancel_work_sync(&wil->disconnect_worker); 482ed6f9dc6SVladimir Kondratiev cancel_work_sync(&wil->fw_error_worker); 483097638a0SVladimir Kondratiev mutex_lock(&wil->mutex); 4844821e6d8SVladimir Kondratiev wil6210_disconnect(wil, NULL, WLAN_REASON_DEAUTH_LEAVING, false); 485097638a0SVladimir Kondratiev mutex_unlock(&wil->mutex); 4862be7d22fSVladimir Kondratiev wmi_event_flush(wil); 4873277213fSVladimir Kondratiev wil_back_rx_flush(wil); 4883277213fSVladimir Kondratiev cancel_work_sync(&wil->back_rx_worker); 4893a124ed6SVladimir Kondratiev wil_back_tx_flush(wil); 4903a124ed6SVladimir Kondratiev cancel_work_sync(&wil->back_tx_worker); 49140822a90SVladimir Kondratiev wil_probe_client_flush(wil); 49240822a90SVladimir Kondratiev cancel_work_sync(&wil->probe_client_worker); 4933277213fSVladimir Kondratiev destroy_workqueue(wil->wq_service); 4942be7d22fSVladimir Kondratiev destroy_workqueue(wil->wmi_wq); 4952be7d22fSVladimir Kondratiev } 4962be7d22fSVladimir Kondratiev 497151a9706SVladimir Kondratiev /* target operations */ 498151a9706SVladimir Kondratiev /* register read */ 499151a9706SVladimir Kondratiev #define R(a) ioread32(wil->csr + HOSTADDR(a)) 500151a9706SVladimir Kondratiev /* register write. wmb() to make sure it is completed */ 501151a9706SVladimir Kondratiev #define W(a, v) do { iowrite32(v, wil->csr + HOSTADDR(a)); wmb(); } while (0) 502151a9706SVladimir Kondratiev /* register set = read, OR, write */ 503151a9706SVladimir Kondratiev #define S(a, v) W(a, R(a) | v) 504151a9706SVladimir Kondratiev /* register clear = read, AND with inverted, write */ 505151a9706SVladimir Kondratiev #define C(a, v) W(a, R(a) & ~v) 506151a9706SVladimir Kondratiev 507151a9706SVladimir Kondratiev static inline void wil_halt_cpu(struct wil6210_priv *wil) 508151a9706SVladimir Kondratiev { 509151a9706SVladimir Kondratiev W(RGF_USER_USER_CPU_0, BIT_USER_USER_CPU_MAN_RST); 510151a9706SVladimir Kondratiev W(RGF_USER_MAC_CPU_0, BIT_USER_MAC_CPU_MAN_RST); 511151a9706SVladimir Kondratiev } 512151a9706SVladimir Kondratiev 513151a9706SVladimir Kondratiev static inline void wil_release_cpu(struct wil6210_priv *wil) 514151a9706SVladimir Kondratiev { 515151a9706SVladimir Kondratiev /* Start CPU */ 516151a9706SVladimir Kondratiev W(RGF_USER_USER_CPU_0, 1); 517151a9706SVladimir Kondratiev } 518151a9706SVladimir Kondratiev 519bbb2adc7SVladimir Kondratiev static int wil_target_reset(struct wil6210_priv *wil) 5202be7d22fSVladimir Kondratiev { 52198a65b59SVladimir Kondratiev int delay = 0; 52248516298SVladimir Kondratiev u32 x; 5231aeda13bSVladimir Kondratiev bool is_reset_v2 = test_bit(hw_capability_reset_v2, 5241aeda13bSVladimir Kondratiev wil->hw_capabilities); 52536b10a72SVladimir Kondratiev 5261aeda13bSVladimir Kondratiev wil_dbg_misc(wil, "Resetting \"%s\"...\n", wil->hw_name); 5276508281bSVladimir Kondratiev 5286508281bSVladimir Kondratiev /* Clear MAC link up */ 5296508281bSVladimir Kondratiev S(RGF_HP_CTRL, BIT(15)); 530151a9706SVladimir Kondratiev S(RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_HPAL_PERST_FROM_PAD); 531151a9706SVladimir Kondratiev S(RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_CAR_PERST_RST); 532151a9706SVladimir Kondratiev 533151a9706SVladimir Kondratiev wil_halt_cpu(wil); 5342be7d22fSVladimir Kondratiev 535cce47711SVladimir Kondratiev /* Clear Fw Download notification */ 536cce47711SVladimir Kondratiev C(RGF_USER_USAGE_6, BIT(0)); 537cce47711SVladimir Kondratiev 5381aeda13bSVladimir Kondratiev if (is_reset_v2) { 53948516298SVladimir Kondratiev S(RGF_CAF_OSC_CONTROL, BIT_CAF_OSC_XTAL_EN); 54048516298SVladimir Kondratiev /* XTAL stabilization should take about 3ms */ 54148516298SVladimir Kondratiev usleep_range(5000, 7000); 54248516298SVladimir Kondratiev x = R(RGF_CAF_PLL_LOCK_STATUS); 54348516298SVladimir Kondratiev if (!(x & BIT_CAF_OSC_DIG_XTAL_STABLE)) { 54448516298SVladimir Kondratiev wil_err(wil, "Xtal stabilization timeout\n" 54548516298SVladimir Kondratiev "RGF_CAF_PLL_LOCK_STATUS = 0x%08x\n", x); 54648516298SVladimir Kondratiev return -ETIME; 54748516298SVladimir Kondratiev } 54848516298SVladimir Kondratiev /* switch 10k to XTAL*/ 54948516298SVladimir Kondratiev C(RGF_USER_SPARROW_M_4, BIT_SPARROW_M_4_SEL_SLEEP_OR_REF); 55048516298SVladimir Kondratiev /* 40 MHz */ 55148516298SVladimir Kondratiev C(RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_CAR_AHB_SW_SEL); 55248516298SVladimir Kondratiev 5536508281bSVladimir Kondratiev W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0, 0x3ff81f); 554151a9706SVladimir Kondratiev W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1, 0xf); 5556508281bSVladimir Kondratiev } 5566508281bSVladimir Kondratiev 5572be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0xFE000000); 5582be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0x0000003F); 5591aeda13bSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, 5601aeda13bSVladimir Kondratiev is_reset_v2 ? 0x000000f0 : 0x00000170); 561151a9706SVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0xFFE7FE00); 5622be7d22fSVladimir Kondratiev 5631aeda13bSVladimir Kondratiev if (is_reset_v2) { 5646508281bSVladimir Kondratiev W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0, 0x0); 565151a9706SVladimir Kondratiev W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1, 0x0); 5666508281bSVladimir Kondratiev } 5676508281bSVladimir Kondratiev 5682be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0); 5692be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0); 5702be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0); 5712be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0); 5722be7d22fSVladimir Kondratiev 5731aeda13bSVladimir Kondratiev if (is_reset_v2) { 5746508281bSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x00000003); 5756508281bSVladimir Kondratiev /* reset A2 PCIE AHB */ 5766508281bSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x00008000); 5776508281bSVladimir Kondratiev } else { 5782be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x00000001); 57917123991SVladimir Kondratiev W(RGF_PCIE_LOS_COUNTER_CTL, BIT(6) | BIT(8)); 58036b10a72SVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x00008000); 58136b10a72SVladimir Kondratiev } 5826508281bSVladimir Kondratiev 5836508281bSVladimir Kondratiev /* TODO: check order here!!! Erez code is different */ 5842be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0); 5852be7d22fSVladimir Kondratiev 586520d68e7SVladimir Kondratiev /* wait until device ready. typical time is 200..250 msec */ 58736b10a72SVladimir Kondratiev do { 588520d68e7SVladimir Kondratiev msleep(RST_DELAY); 58948516298SVladimir Kondratiev x = R(RGF_USER_HW_MACHINE_STATE); 590520d68e7SVladimir Kondratiev if (delay++ > RST_COUNT) { 591d28bcc30SVladimir Kondratiev wil_err(wil, "Reset not completed, hw_state 0x%08x\n", 59248516298SVladimir Kondratiev x); 593bbb2adc7SVladimir Kondratiev return -ETIME; 59436b10a72SVladimir Kondratiev } 59548516298SVladimir Kondratiev } while (x != HW_MACHINE_BOOT_DONE); 59636b10a72SVladimir Kondratiev 5971aeda13bSVladimir Kondratiev if (!is_reset_v2) 59817123991SVladimir Kondratiev W(RGF_PCIE_LOS_COUNTER_CTL, BIT(8)); 59936b10a72SVladimir Kondratiev 600972072aaSVladimir Kondratiev C(RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_RST_PWGD); 601972072aaSVladimir Kondratiev 602520d68e7SVladimir Kondratiev wil_dbg_misc(wil, "Reset completed in %d ms\n", delay * RST_DELAY); 603bbb2adc7SVladimir Kondratiev return 0; 604151a9706SVladimir Kondratiev } 6052be7d22fSVladimir Kondratiev 60636b10a72SVladimir Kondratiev #undef R 6072be7d22fSVladimir Kondratiev #undef W 6082be7d22fSVladimir Kondratiev #undef S 609972072aaSVladimir Kondratiev #undef C 6102be7d22fSVladimir Kondratiev 6112be7d22fSVladimir Kondratiev void wil_mbox_ring_le2cpus(struct wil6210_mbox_ring *r) 6122be7d22fSVladimir Kondratiev { 6132be7d22fSVladimir Kondratiev le32_to_cpus(&r->base); 6142be7d22fSVladimir Kondratiev le16_to_cpus(&r->entry_size); 6152be7d22fSVladimir Kondratiev le16_to_cpus(&r->size); 6162be7d22fSVladimir Kondratiev le32_to_cpus(&r->tail); 6172be7d22fSVladimir Kondratiev le32_to_cpus(&r->head); 6182be7d22fSVladimir Kondratiev } 6192be7d22fSVladimir Kondratiev 6202be7d22fSVladimir Kondratiev static int wil_wait_for_fw_ready(struct wil6210_priv *wil) 6212be7d22fSVladimir Kondratiev { 6222be7d22fSVladimir Kondratiev ulong to = msecs_to_jiffies(1000); 6232be7d22fSVladimir Kondratiev ulong left = wait_for_completion_timeout(&wil->wmi_ready, to); 6248fe59627SVladimir Kondratiev 6252be7d22fSVladimir Kondratiev if (0 == left) { 6262be7d22fSVladimir Kondratiev wil_err(wil, "Firmware not ready\n"); 6272be7d22fSVladimir Kondratiev return -ETIME; 6282be7d22fSVladimir Kondratiev } else { 62915e23124SVladimir Kondratiev wil_info(wil, "FW ready after %d ms. HW version 0x%08x\n", 63015e23124SVladimir Kondratiev jiffies_to_msecs(to-left), wil->hw_version); 6312be7d22fSVladimir Kondratiev } 6322be7d22fSVladimir Kondratiev return 0; 6332be7d22fSVladimir Kondratiev } 6342be7d22fSVladimir Kondratiev 6352be7d22fSVladimir Kondratiev /* 6362be7d22fSVladimir Kondratiev * We reset all the structures, and we reset the UMAC. 6372be7d22fSVladimir Kondratiev * After calling this routine, you're expected to reload 6382be7d22fSVladimir Kondratiev * the firmware. 6392be7d22fSVladimir Kondratiev */ 6402be7d22fSVladimir Kondratiev int wil_reset(struct wil6210_priv *wil) 6412be7d22fSVladimir Kondratiev { 6422be7d22fSVladimir Kondratiev int rc; 6432be7d22fSVladimir Kondratiev 6449cf10d62SVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 6459cf10d62SVladimir Kondratiev 6461aeda13bSVladimir Kondratiev if (wil->hw_version == HW_VER_UNKNOWN) 6471aeda13bSVladimir Kondratiev return -ENODEV; 6481aeda13bSVladimir Kondratiev 649097638a0SVladimir Kondratiev WARN_ON(!mutex_is_locked(&wil->mutex)); 6509419b6a2SVladimir Kondratiev WARN_ON(test_bit(wil_status_napi_en, wil->status)); 651097638a0SVladimir Kondratiev 652097638a0SVladimir Kondratiev cancel_work_sync(&wil->disconnect_worker); 6534821e6d8SVladimir Kondratiev wil6210_disconnect(wil, NULL, WLAN_REASON_DEAUTH_LEAVING, false); 654097638a0SVladimir Kondratiev 6559419b6a2SVladimir Kondratiev /* prevent NAPI from being scheduled */ 6569419b6a2SVladimir Kondratiev bitmap_zero(wil->status, wil_status_last); 6570fef1818SVladimir Kondratiev 658ed6f9dc6SVladimir Kondratiev if (wil->scan_request) { 659ed6f9dc6SVladimir Kondratiev wil_dbg_misc(wil, "Abort scan_request 0x%p\n", 660ed6f9dc6SVladimir Kondratiev wil->scan_request); 661047e5d74SVladimir Kondratiev del_timer_sync(&wil->scan_timer); 662ed6f9dc6SVladimir Kondratiev cfg80211_scan_done(wil->scan_request, true); 663ed6f9dc6SVladimir Kondratiev wil->scan_request = NULL; 664ed6f9dc6SVladimir Kondratiev } 665ed6f9dc6SVladimir Kondratiev 666e4dbb093SVladimir Kondratiev wil_mask_irq(wil); 6672be7d22fSVladimir Kondratiev 668e08b5906SVladimir Kondratiev wmi_event_flush(wil); 669e08b5906SVladimir Kondratiev 6703277213fSVladimir Kondratiev flush_workqueue(wil->wq_service); 671e08b5906SVladimir Kondratiev flush_workqueue(wil->wmi_wq); 672e08b5906SVladimir Kondratiev 673bbb2adc7SVladimir Kondratiev rc = wil_target_reset(wil); 6748bf6adb9SVladimir Kondratiev wil_rx_fini(wil); 675bbb2adc7SVladimir Kondratiev if (rc) 676bbb2adc7SVladimir Kondratiev return rc; 677bbb2adc7SVladimir Kondratiev 678151a9706SVladimir Kondratiev if (!no_fw_load) { 679151a9706SVladimir Kondratiev wil_info(wil, "Use firmware <%s>\n", WIL_FW_NAME); 680151a9706SVladimir Kondratiev wil_halt_cpu(wil); 681151a9706SVladimir Kondratiev /* Loading f/w from the file */ 682151a9706SVladimir Kondratiev rc = wil_request_firmware(wil, WIL_FW_NAME); 683151a9706SVladimir Kondratiev if (rc) 684151a9706SVladimir Kondratiev return rc; 685151a9706SVladimir Kondratiev 686151a9706SVladimir Kondratiev /* clear any interrupts which on-card-firmware may have set */ 687151a9706SVladimir Kondratiev wil6210_clear_irq(wil); 688151a9706SVladimir Kondratiev { /* CAF_ICR - clear and mask */ 689151a9706SVladimir Kondratiev u32 a = HOSTADDR(RGF_CAF_ICR) + 690151a9706SVladimir Kondratiev offsetof(struct RGF_ICR, ICR); 691151a9706SVladimir Kondratiev u32 m = HOSTADDR(RGF_CAF_ICR) + 692151a9706SVladimir Kondratiev offsetof(struct RGF_ICR, IMV); 693151a9706SVladimir Kondratiev u32 icr = ioread32(wil->csr + a); 694151a9706SVladimir Kondratiev 695151a9706SVladimir Kondratiev iowrite32(icr, wil->csr + a); /* W1C */ 696151a9706SVladimir Kondratiev iowrite32(~0, wil->csr + m); 697151a9706SVladimir Kondratiev wmb(); /* wait for completion */ 698151a9706SVladimir Kondratiev } 699151a9706SVladimir Kondratiev wil_release_cpu(wil); 700151a9706SVladimir Kondratiev } else { 701151a9706SVladimir Kondratiev wil_info(wil, "Use firmware from on-card flash\n"); 702151a9706SVladimir Kondratiev } 7038bf6adb9SVladimir Kondratiev 7042be7d22fSVladimir Kondratiev /* init after reset */ 7052be7d22fSVladimir Kondratiev wil->pending_connect_cid = -1; 70616735d02SWolfram Sang reinit_completion(&wil->wmi_ready); 70759502647SDedy Lansky reinit_completion(&wil->wmi_call); 7082be7d22fSVladimir Kondratiev 70978366f69SVladimir Kondratiev wil_configure_interrupt_moderation(wil); 710e4dbb093SVladimir Kondratiev wil_unmask_irq(wil); 7112be7d22fSVladimir Kondratiev 7122be7d22fSVladimir Kondratiev /* we just started MAC, wait for FW ready */ 7132be7d22fSVladimir Kondratiev rc = wil_wait_for_fw_ready(wil); 7142be7d22fSVladimir Kondratiev 7152be7d22fSVladimir Kondratiev return rc; 7162be7d22fSVladimir Kondratiev } 7172be7d22fSVladimir Kondratiev 718ed6f9dc6SVladimir Kondratiev void wil_fw_error_recovery(struct wil6210_priv *wil) 719ed6f9dc6SVladimir Kondratiev { 720ed6f9dc6SVladimir Kondratiev wil_dbg_misc(wil, "starting fw error recovery\n"); 721c33407a8SVladimir Kondratiev wil->recovery_state = fw_recovery_pending; 722ed6f9dc6SVladimir Kondratiev schedule_work(&wil->fw_error_worker); 723ed6f9dc6SVladimir Kondratiev } 7242be7d22fSVladimir Kondratiev 72573d839aeSVladimir Kondratiev int __wil_up(struct wil6210_priv *wil) 7262be7d22fSVladimir Kondratiev { 7272be7d22fSVladimir Kondratiev struct net_device *ndev = wil_to_ndev(wil); 7282be7d22fSVladimir Kondratiev struct wireless_dev *wdev = wil->wdev; 7292be7d22fSVladimir Kondratiev int rc; 7302be7d22fSVladimir Kondratiev 731097638a0SVladimir Kondratiev WARN_ON(!mutex_is_locked(&wil->mutex)); 732097638a0SVladimir Kondratiev 7332be7d22fSVladimir Kondratiev rc = wil_reset(wil); 7342be7d22fSVladimir Kondratiev if (rc) 7352be7d22fSVladimir Kondratiev return rc; 7362be7d22fSVladimir Kondratiev 737e31b2562SVladimir Kondratiev /* Rx VRING. After MAC and beacon */ 738d3762b40SVladimir Kondratiev rc = wil_rx_init(wil, 1 << rx_ring_order); 739e31b2562SVladimir Kondratiev if (rc) 740e31b2562SVladimir Kondratiev return rc; 741e31b2562SVladimir Kondratiev 7422be7d22fSVladimir Kondratiev switch (wdev->iftype) { 7432be7d22fSVladimir Kondratiev case NL80211_IFTYPE_STATION: 7447743882dSVladimir Kondratiev wil_dbg_misc(wil, "type: STATION\n"); 7452be7d22fSVladimir Kondratiev ndev->type = ARPHRD_ETHER; 7462be7d22fSVladimir Kondratiev break; 7472be7d22fSVladimir Kondratiev case NL80211_IFTYPE_AP: 7487743882dSVladimir Kondratiev wil_dbg_misc(wil, "type: AP\n"); 7492be7d22fSVladimir Kondratiev ndev->type = ARPHRD_ETHER; 7502be7d22fSVladimir Kondratiev break; 7512be7d22fSVladimir Kondratiev case NL80211_IFTYPE_P2P_CLIENT: 7527743882dSVladimir Kondratiev wil_dbg_misc(wil, "type: P2P_CLIENT\n"); 7532be7d22fSVladimir Kondratiev ndev->type = ARPHRD_ETHER; 7542be7d22fSVladimir Kondratiev break; 7552be7d22fSVladimir Kondratiev case NL80211_IFTYPE_P2P_GO: 7567743882dSVladimir Kondratiev wil_dbg_misc(wil, "type: P2P_GO\n"); 7572be7d22fSVladimir Kondratiev ndev->type = ARPHRD_ETHER; 7582be7d22fSVladimir Kondratiev break; 7592be7d22fSVladimir Kondratiev case NL80211_IFTYPE_MONITOR: 7607743882dSVladimir Kondratiev wil_dbg_misc(wil, "type: Monitor\n"); 7612be7d22fSVladimir Kondratiev ndev->type = ARPHRD_IEEE80211_RADIOTAP; 7622be7d22fSVladimir Kondratiev /* ARPHRD_IEEE80211 or ARPHRD_IEEE80211_RADIOTAP ? */ 7632be7d22fSVladimir Kondratiev break; 7642be7d22fSVladimir Kondratiev default: 7652be7d22fSVladimir Kondratiev return -EOPNOTSUPP; 7662be7d22fSVladimir Kondratiev } 7672be7d22fSVladimir Kondratiev 7682be7d22fSVladimir Kondratiev /* MAC address - pre-requisite for other commands */ 7692be7d22fSVladimir Kondratiev wmi_set_mac_address(wil, ndev->dev_addr); 7702be7d22fSVladimir Kondratiev 77173d839aeSVladimir Kondratiev wil_dbg_misc(wil, "NAPI enable\n"); 772e0287c4aSVladimir Kondratiev napi_enable(&wil->napi_rx); 773e0287c4aSVladimir Kondratiev napi_enable(&wil->napi_tx); 7749419b6a2SVladimir Kondratiev set_bit(wil_status_napi_en, wil->status); 775e0287c4aSVladimir Kondratiev 776f772ebfbSVladimir Kondratiev if (wil->platform_ops.bus_request) 777f772ebfbSVladimir Kondratiev wil->platform_ops.bus_request(wil->platform_handle, 778f772ebfbSVladimir Kondratiev WIL_MAX_BUS_REQUEST_KBPS); 779f772ebfbSVladimir Kondratiev 7802be7d22fSVladimir Kondratiev return 0; 7812be7d22fSVladimir Kondratiev } 7822be7d22fSVladimir Kondratiev 7832be7d22fSVladimir Kondratiev int wil_up(struct wil6210_priv *wil) 7842be7d22fSVladimir Kondratiev { 7852be7d22fSVladimir Kondratiev int rc; 7862be7d22fSVladimir Kondratiev 7879cf10d62SVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 7889cf10d62SVladimir Kondratiev 7892be7d22fSVladimir Kondratiev mutex_lock(&wil->mutex); 7902be7d22fSVladimir Kondratiev rc = __wil_up(wil); 7912be7d22fSVladimir Kondratiev mutex_unlock(&wil->mutex); 7922be7d22fSVladimir Kondratiev 7932be7d22fSVladimir Kondratiev return rc; 7942be7d22fSVladimir Kondratiev } 7952be7d22fSVladimir Kondratiev 79673d839aeSVladimir Kondratiev int __wil_down(struct wil6210_priv *wil) 7972be7d22fSVladimir Kondratiev { 798f172b563SDedy Lansky int iter = WAIT_FOR_DISCONNECT_TIMEOUT_MS / 799f172b563SDedy Lansky WAIT_FOR_DISCONNECT_INTERVAL_MS; 800f172b563SDedy Lansky 801097638a0SVladimir Kondratiev WARN_ON(!mutex_is_locked(&wil->mutex)); 802097638a0SVladimir Kondratiev 803f772ebfbSVladimir Kondratiev if (wil->platform_ops.bus_request) 804f772ebfbSVladimir Kondratiev wil->platform_ops.bus_request(wil->platform_handle, 0); 805f772ebfbSVladimir Kondratiev 80673d839aeSVladimir Kondratiev wil_disable_irq(wil); 8079419b6a2SVladimir Kondratiev if (test_and_clear_bit(wil_status_napi_en, wil->status)) { 808e0287c4aSVladimir Kondratiev napi_disable(&wil->napi_rx); 809e0287c4aSVladimir Kondratiev napi_disable(&wil->napi_tx); 81073d839aeSVladimir Kondratiev wil_dbg_misc(wil, "NAPI disable\n"); 81173d839aeSVladimir Kondratiev } 81273d839aeSVladimir Kondratiev wil_enable_irq(wil); 813e0287c4aSVladimir Kondratiev 8142be7d22fSVladimir Kondratiev if (wil->scan_request) { 8152a91d7d0SVladimir Kondratiev wil_dbg_misc(wil, "Abort scan_request 0x%p\n", 8162a91d7d0SVladimir Kondratiev wil->scan_request); 817047e5d74SVladimir Kondratiev del_timer_sync(&wil->scan_timer); 8182be7d22fSVladimir Kondratiev cfg80211_scan_done(wil->scan_request, true); 8192be7d22fSVladimir Kondratiev wil->scan_request = NULL; 8202be7d22fSVladimir Kondratiev } 8212be7d22fSVladimir Kondratiev 8229419b6a2SVladimir Kondratiev if (test_bit(wil_status_fwconnected, wil->status) || 8239419b6a2SVladimir Kondratiev test_bit(wil_status_fwconnecting, wil->status)) 824f172b563SDedy Lansky wmi_send(wil, WMI_DISCONNECT_CMDID, NULL, 0); 825f172b563SDedy Lansky 826f172b563SDedy Lansky /* make sure wil is idle (not connected) */ 827f172b563SDedy Lansky mutex_unlock(&wil->mutex); 828f172b563SDedy Lansky while (iter--) { 8299419b6a2SVladimir Kondratiev int idle = !test_bit(wil_status_fwconnected, wil->status) && 8309419b6a2SVladimir Kondratiev !test_bit(wil_status_fwconnecting, wil->status); 831f172b563SDedy Lansky if (idle) 832f172b563SDedy Lansky break; 833f172b563SDedy Lansky msleep(WAIT_FOR_DISCONNECT_INTERVAL_MS); 834f172b563SDedy Lansky } 835f172b563SDedy Lansky mutex_lock(&wil->mutex); 836f172b563SDedy Lansky 837f172b563SDedy Lansky if (!iter) 838f172b563SDedy Lansky wil_err(wil, "timeout waiting for idle FW/HW\n"); 839f172b563SDedy Lansky 8402be7d22fSVladimir Kondratiev wil_rx_fini(wil); 8412be7d22fSVladimir Kondratiev 8422be7d22fSVladimir Kondratiev return 0; 8432be7d22fSVladimir Kondratiev } 8442be7d22fSVladimir Kondratiev 8452be7d22fSVladimir Kondratiev int wil_down(struct wil6210_priv *wil) 8462be7d22fSVladimir Kondratiev { 8472be7d22fSVladimir Kondratiev int rc; 8482be7d22fSVladimir Kondratiev 8499cf10d62SVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 8509cf10d62SVladimir Kondratiev 851c33407a8SVladimir Kondratiev wil_set_recovery_state(wil, fw_recovery_idle); 8522be7d22fSVladimir Kondratiev mutex_lock(&wil->mutex); 8532be7d22fSVladimir Kondratiev rc = __wil_down(wil); 8542be7d22fSVladimir Kondratiev mutex_unlock(&wil->mutex); 8552be7d22fSVladimir Kondratiev 8562be7d22fSVladimir Kondratiev return rc; 8572be7d22fSVladimir Kondratiev } 8583df2cd36SVladimir Kondratiev 8593df2cd36SVladimir Kondratiev int wil_find_cid(struct wil6210_priv *wil, const u8 *mac) 8603df2cd36SVladimir Kondratiev { 8613df2cd36SVladimir Kondratiev int i; 8623df2cd36SVladimir Kondratiev int rc = -ENOENT; 8633df2cd36SVladimir Kondratiev 8643df2cd36SVladimir Kondratiev for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 8653df2cd36SVladimir Kondratiev if ((wil->sta[i].status != wil_sta_unused) && 866108d1eb6SVladimir Kondratiev ether_addr_equal(wil->sta[i].addr, mac)) { 8673df2cd36SVladimir Kondratiev rc = i; 8683df2cd36SVladimir Kondratiev break; 8693df2cd36SVladimir Kondratiev } 8703df2cd36SVladimir Kondratiev } 8713df2cd36SVladimir Kondratiev 8723df2cd36SVladimir Kondratiev return rc; 8733df2cd36SVladimir Kondratiev } 874