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 70d3762b40SVladimir Kondratiev static uint rx_ring_order = WIL_RX_RING_SIZE_ORDER_DEFAULT; 71d3762b40SVladimir Kondratiev static uint tx_ring_order = WIL_TX_RING_SIZE_ORDER_DEFAULT; 72d3762b40SVladimir Kondratiev 73d3762b40SVladimir Kondratiev static int ring_order_set(const char *val, const struct kernel_param *kp) 74d3762b40SVladimir Kondratiev { 75d3762b40SVladimir Kondratiev int ret; 76d3762b40SVladimir Kondratiev uint x; 77d3762b40SVladimir Kondratiev 78d3762b40SVladimir Kondratiev ret = kstrtouint(val, 0, &x); 79d3762b40SVladimir Kondratiev if (ret) 80d3762b40SVladimir Kondratiev return ret; 81d3762b40SVladimir Kondratiev 82d3762b40SVladimir Kondratiev if ((x < WIL_RING_SIZE_ORDER_MIN) || (x > WIL_RING_SIZE_ORDER_MAX)) 83d3762b40SVladimir Kondratiev return -EINVAL; 84d3762b40SVladimir Kondratiev 85d3762b40SVladimir Kondratiev *((uint *)kp->arg) = x; 86d3762b40SVladimir Kondratiev 87d3762b40SVladimir Kondratiev return 0; 88d3762b40SVladimir Kondratiev } 89d3762b40SVladimir Kondratiev 90d3762b40SVladimir Kondratiev static struct kernel_param_ops ring_order_ops = { 91d3762b40SVladimir Kondratiev .set = ring_order_set, 92d3762b40SVladimir Kondratiev .get = param_get_uint, 93d3762b40SVladimir Kondratiev }; 94d3762b40SVladimir Kondratiev 95d3762b40SVladimir Kondratiev module_param_cb(rx_ring_order, &ring_order_ops, &rx_ring_order, S_IRUGO); 96d3762b40SVladimir Kondratiev MODULE_PARM_DESC(rx_ring_order, " Rx ring order; size = 1 << order"); 97d3762b40SVladimir Kondratiev module_param_cb(tx_ring_order, &ring_order_ops, &tx_ring_order, S_IRUGO); 98d3762b40SVladimir Kondratiev MODULE_PARM_DESC(tx_ring_order, " Tx ring order; size = 1 << order"); 99d3762b40SVladimir Kondratiev 100520d68e7SVladimir Kondratiev #define RST_DELAY (20) /* msec, for loop in @wil_target_reset */ 101520d68e7SVladimir Kondratiev #define RST_COUNT (1 + 1000/RST_DELAY) /* round up to be above 1 sec total */ 102520d68e7SVladimir Kondratiev 1032be7d22fSVladimir Kondratiev /* 1042be7d22fSVladimir Kondratiev * Due to a hardware issue, 1052be7d22fSVladimir Kondratiev * one has to read/write to/from NIC in 32-bit chunks; 1062be7d22fSVladimir Kondratiev * regular memcpy_fromio and siblings will 1072be7d22fSVladimir Kondratiev * not work on 64-bit platform - it uses 64-bit transactions 1082be7d22fSVladimir Kondratiev * 1092be7d22fSVladimir Kondratiev * Force 32-bit transactions to enable NIC on 64-bit platforms 1102be7d22fSVladimir Kondratiev * 1112be7d22fSVladimir Kondratiev * To avoid byte swap on big endian host, __raw_{read|write}l 1122be7d22fSVladimir Kondratiev * should be used - {read|write}l would swap bytes to provide 1132be7d22fSVladimir Kondratiev * little endian on PCI value in host endianness. 1142be7d22fSVladimir Kondratiev */ 1152be7d22fSVladimir Kondratiev void wil_memcpy_fromio_32(void *dst, const volatile void __iomem *src, 1162be7d22fSVladimir Kondratiev size_t count) 1172be7d22fSVladimir Kondratiev { 1182be7d22fSVladimir Kondratiev u32 *d = dst; 1192be7d22fSVladimir Kondratiev const volatile u32 __iomem *s = src; 1202be7d22fSVladimir Kondratiev 1212be7d22fSVladimir Kondratiev /* size_t is unsigned, if (count%4 != 0) it will wrap */ 1222be7d22fSVladimir Kondratiev for (count += 4; count > 4; count -= 4) 1232be7d22fSVladimir Kondratiev *d++ = __raw_readl(s++); 1242be7d22fSVladimir Kondratiev } 1252be7d22fSVladimir Kondratiev 1262be7d22fSVladimir Kondratiev void wil_memcpy_toio_32(volatile void __iomem *dst, const void *src, 1272be7d22fSVladimir Kondratiev size_t count) 1282be7d22fSVladimir Kondratiev { 1292be7d22fSVladimir Kondratiev volatile u32 __iomem *d = dst; 1302be7d22fSVladimir Kondratiev const u32 *s = src; 1312be7d22fSVladimir Kondratiev 1322be7d22fSVladimir Kondratiev for (count += 4; count > 4; count -= 4) 1332be7d22fSVladimir Kondratiev __raw_writel(*s++, d++); 1342be7d22fSVladimir Kondratiev } 1352be7d22fSVladimir Kondratiev 136b516fcc5SVladimir Kondratiev static void wil_disconnect_cid(struct wil6210_priv *wil, int cid, 1374821e6d8SVladimir Kondratiev u16 reason_code, bool from_event) 1382be7d22fSVladimir Kondratiev { 13991886b0bSVladimir Kondratiev uint i; 140fc58f681SVladimir Kondratiev struct net_device *ndev = wil_to_ndev(wil); 141fc58f681SVladimir Kondratiev struct wireless_dev *wdev = wil->wdev; 142b4490f42SVladimir Kondratiev struct wil_sta_info *sta = &wil->sta[cid]; 1438fe59627SVladimir Kondratiev 144fc58f681SVladimir Kondratiev wil_dbg_misc(wil, "%s(CID %d, status %d)\n", __func__, cid, 145fc58f681SVladimir Kondratiev sta->status); 1464d55a0a1SVladimir Kondratiev 147e58c9f70SVladimir Kondratiev sta->data_port_open = false; 1484d55a0a1SVladimir Kondratiev if (sta->status != wil_sta_unused) { 149b516fcc5SVladimir Kondratiev if (!from_event) 1504821e6d8SVladimir Kondratiev wmi_disconnect_sta(wil, sta->addr, reason_code); 151b516fcc5SVladimir Kondratiev 152fc58f681SVladimir Kondratiev switch (wdev->iftype) { 153fc58f681SVladimir Kondratiev case NL80211_IFTYPE_AP: 154fc58f681SVladimir Kondratiev case NL80211_IFTYPE_P2P_GO: 155fc58f681SVladimir Kondratiev /* AP-like interface */ 156fc58f681SVladimir Kondratiev cfg80211_del_sta(ndev, sta->addr, GFP_KERNEL); 157fc58f681SVladimir Kondratiev break; 158fc58f681SVladimir Kondratiev default: 159fc58f681SVladimir Kondratiev break; 160fc58f681SVladimir Kondratiev } 1614d55a0a1SVladimir Kondratiev sta->status = wil_sta_unused; 1624d55a0a1SVladimir Kondratiev } 1634d55a0a1SVladimir Kondratiev 164b4490f42SVladimir Kondratiev for (i = 0; i < WIL_STA_TID_NUM; i++) { 165ec81b5adSDedy Lansky struct wil_tid_ampdu_rx *r; 166ec81b5adSDedy Lansky unsigned long flags; 167ec81b5adSDedy Lansky 168ec81b5adSDedy Lansky spin_lock_irqsave(&sta->tid_rx_lock, flags); 169ec81b5adSDedy Lansky 170ec81b5adSDedy Lansky r = sta->tid_rx[i]; 171b4490f42SVladimir Kondratiev sta->tid_rx[i] = NULL; 172b4490f42SVladimir Kondratiev wil_tid_ampdu_rx_free(wil, r); 173ec81b5adSDedy Lansky 174ec81b5adSDedy Lansky spin_unlock_irqrestore(&sta->tid_rx_lock, flags); 175b4490f42SVladimir Kondratiev } 17691886b0bSVladimir Kondratiev for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) { 17791886b0bSVladimir Kondratiev if (wil->vring2cid_tid[i][0] == cid) 17891886b0bSVladimir Kondratiev wil_vring_fini_tx(wil, i); 17991886b0bSVladimir Kondratiev } 18091886b0bSVladimir Kondratiev memset(&sta->stats, 0, sizeof(sta->stats)); 181b4490f42SVladimir Kondratiev } 182b4490f42SVladimir Kondratiev 183b516fcc5SVladimir Kondratiev static void _wil6210_disconnect(struct wil6210_priv *wil, const u8 *bssid, 1844821e6d8SVladimir Kondratiev u16 reason_code, bool from_event) 18591886b0bSVladimir Kondratiev { 18691886b0bSVladimir Kondratiev int cid = -ENOENT; 18791886b0bSVladimir Kondratiev struct net_device *ndev = wil_to_ndev(wil); 18891886b0bSVladimir Kondratiev struct wireless_dev *wdev = wil->wdev; 18991886b0bSVladimir Kondratiev 19091886b0bSVladimir Kondratiev might_sleep(); 191100106d7SVladimir Kondratiev wil_dbg_misc(wil, "%s(bssid=%pM, reason=%d, ev%s)\n", __func__, bssid, 192100106d7SVladimir Kondratiev reason_code, from_event ? "+" : "-"); 19391886b0bSVladimir Kondratiev 194100106d7SVladimir Kondratiev /* Cases are: 195100106d7SVladimir Kondratiev * - disconnect single STA, still connected 196100106d7SVladimir Kondratiev * - disconnect single STA, already disconnected 197100106d7SVladimir Kondratiev * - disconnect all 198100106d7SVladimir Kondratiev * 199100106d7SVladimir Kondratiev * For "disconnect all", there are 2 options: 200100106d7SVladimir Kondratiev * - bssid == NULL 201100106d7SVladimir Kondratiev * - bssid is our MAC address 202100106d7SVladimir Kondratiev */ 203100106d7SVladimir Kondratiev if (bssid && memcmp(ndev->dev_addr, bssid, ETH_ALEN)) { 204100106d7SVladimir Kondratiev cid = wil_find_cid(wil, bssid); 205100106d7SVladimir Kondratiev wil_dbg_misc(wil, "Disconnect %pM, CID=%d, reason=%d\n", 206100106d7SVladimir Kondratiev bssid, cid, reason_code); 20791886b0bSVladimir Kondratiev if (cid >= 0) /* disconnect 1 peer */ 2084821e6d8SVladimir Kondratiev wil_disconnect_cid(wil, cid, reason_code, from_event); 209100106d7SVladimir Kondratiev } else { /* all */ 210100106d7SVladimir Kondratiev wil_dbg_misc(wil, "Disconnect all\n"); 21191886b0bSVladimir Kondratiev for (cid = 0; cid < WIL6210_MAX_CID; cid++) 2124821e6d8SVladimir Kondratiev wil_disconnect_cid(wil, cid, reason_code, from_event); 213100106d7SVladimir Kondratiev } 21491886b0bSVladimir Kondratiev 21591886b0bSVladimir Kondratiev /* link state */ 21691886b0bSVladimir Kondratiev switch (wdev->iftype) { 21791886b0bSVladimir Kondratiev case NL80211_IFTYPE_STATION: 21891886b0bSVladimir Kondratiev case NL80211_IFTYPE_P2P_CLIENT: 2192be7d22fSVladimir Kondratiev wil_link_off(wil); 220b338f74eSVladimir Kondratiev if (test_bit(wil_status_fwconnected, &wil->status)) { 2212be7d22fSVladimir Kondratiev clear_bit(wil_status_fwconnected, &wil->status); 2224821e6d8SVladimir Kondratiev cfg80211_disconnected(ndev, reason_code, 2232be7d22fSVladimir Kondratiev NULL, 0, GFP_KERNEL); 224b338f74eSVladimir Kondratiev } else if (test_bit(wil_status_fwconnecting, &wil->status)) { 2252be7d22fSVladimir Kondratiev cfg80211_connect_result(ndev, bssid, NULL, 0, NULL, 0, 2262be7d22fSVladimir Kondratiev WLAN_STATUS_UNSPECIFIED_FAILURE, 2272be7d22fSVladimir Kondratiev GFP_KERNEL); 2282be7d22fSVladimir Kondratiev } 229b338f74eSVladimir Kondratiev clear_bit(wil_status_fwconnecting, &wil->status); 23091886b0bSVladimir Kondratiev break; 23191886b0bSVladimir Kondratiev default: 23291886b0bSVladimir Kondratiev break; 23391886b0bSVladimir Kondratiev } 2342be7d22fSVladimir Kondratiev } 2352be7d22fSVladimir Kondratiev 2362be7d22fSVladimir Kondratiev static void wil_disconnect_worker(struct work_struct *work) 2372be7d22fSVladimir Kondratiev { 2382be7d22fSVladimir Kondratiev struct wil6210_priv *wil = container_of(work, 2392be7d22fSVladimir Kondratiev struct wil6210_priv, disconnect_worker); 2402be7d22fSVladimir Kondratiev 241097638a0SVladimir Kondratiev mutex_lock(&wil->mutex); 2424821e6d8SVladimir Kondratiev _wil6210_disconnect(wil, NULL, WLAN_REASON_UNSPECIFIED, false); 243097638a0SVladimir Kondratiev mutex_unlock(&wil->mutex); 2442be7d22fSVladimir Kondratiev } 2452be7d22fSVladimir Kondratiev 2462be7d22fSVladimir Kondratiev static void wil_connect_timer_fn(ulong x) 2472be7d22fSVladimir Kondratiev { 2482be7d22fSVladimir Kondratiev struct wil6210_priv *wil = (void *)x; 2492be7d22fSVladimir Kondratiev 2507743882dSVladimir Kondratiev wil_dbg_misc(wil, "Connect timeout\n"); 2512be7d22fSVladimir Kondratiev 2522be7d22fSVladimir Kondratiev /* reschedule to thread context - disconnect won't 2532be7d22fSVladimir Kondratiev * run from atomic context 2542be7d22fSVladimir Kondratiev */ 2552be7d22fSVladimir Kondratiev schedule_work(&wil->disconnect_worker); 2562be7d22fSVladimir Kondratiev } 2572be7d22fSVladimir Kondratiev 258047e5d74SVladimir Kondratiev static void wil_scan_timer_fn(ulong x) 259047e5d74SVladimir Kondratiev { 260047e5d74SVladimir Kondratiev struct wil6210_priv *wil = (void *)x; 261047e5d74SVladimir Kondratiev 262047e5d74SVladimir Kondratiev clear_bit(wil_status_fwready, &wil->status); 263047e5d74SVladimir Kondratiev wil_err(wil, "Scan timeout detected, start fw error recovery\n"); 26460abbb6eSVladimir Kondratiev wil->recovery_state = fw_recovery_pending; 265047e5d74SVladimir Kondratiev schedule_work(&wil->fw_error_worker); 266047e5d74SVladimir Kondratiev } 267047e5d74SVladimir Kondratiev 268c33407a8SVladimir Kondratiev static int wil_wait_for_recovery(struct wil6210_priv *wil) 269c33407a8SVladimir Kondratiev { 270c33407a8SVladimir Kondratiev if (wait_event_interruptible(wil->wq, wil->recovery_state != 271c33407a8SVladimir Kondratiev fw_recovery_pending)) { 272c33407a8SVladimir Kondratiev wil_err(wil, "Interrupt, canceling recovery\n"); 273c33407a8SVladimir Kondratiev return -ERESTARTSYS; 274c33407a8SVladimir Kondratiev } 275c33407a8SVladimir Kondratiev if (wil->recovery_state != fw_recovery_running) { 276c33407a8SVladimir Kondratiev wil_info(wil, "Recovery cancelled\n"); 277c33407a8SVladimir Kondratiev return -EINTR; 278c33407a8SVladimir Kondratiev } 279c33407a8SVladimir Kondratiev wil_info(wil, "Proceed with recovery\n"); 280c33407a8SVladimir Kondratiev return 0; 281c33407a8SVladimir Kondratiev } 282c33407a8SVladimir Kondratiev 283c33407a8SVladimir Kondratiev void wil_set_recovery_state(struct wil6210_priv *wil, int state) 284c33407a8SVladimir Kondratiev { 285c33407a8SVladimir Kondratiev wil_dbg_misc(wil, "%s(%d -> %d)\n", __func__, 286c33407a8SVladimir Kondratiev wil->recovery_state, state); 287c33407a8SVladimir Kondratiev 288c33407a8SVladimir Kondratiev wil->recovery_state = state; 289c33407a8SVladimir Kondratiev wake_up_interruptible(&wil->wq); 290c33407a8SVladimir Kondratiev } 291c33407a8SVladimir Kondratiev 292ed6f9dc6SVladimir Kondratiev static void wil_fw_error_worker(struct work_struct *work) 293ed6f9dc6SVladimir Kondratiev { 294c33407a8SVladimir Kondratiev struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 295c33407a8SVladimir Kondratiev fw_error_worker); 296ed6f9dc6SVladimir Kondratiev struct wireless_dev *wdev = wil->wdev; 297ed6f9dc6SVladimir Kondratiev 298ed6f9dc6SVladimir Kondratiev wil_dbg_misc(wil, "fw error worker\n"); 299ed6f9dc6SVladimir Kondratiev 300cded9369SVladimir Kondratiev if (!netif_running(wil_to_ndev(wil))) { 301cded9369SVladimir Kondratiev wil_info(wil, "No recovery - interface is down\n"); 302cded9369SVladimir Kondratiev return; 303cded9369SVladimir Kondratiev } 304cded9369SVladimir Kondratiev 305fc219eedSVladimir Kondratiev /* increment @recovery_count if less then WIL6210_FW_RECOVERY_TO 306fc219eedSVladimir Kondratiev * passed since last recovery attempt 307fc219eedSVladimir Kondratiev */ 308fc219eedSVladimir Kondratiev if (time_is_after_jiffies(wil->last_fw_recovery + 309fc219eedSVladimir Kondratiev WIL6210_FW_RECOVERY_TO)) 310fc219eedSVladimir Kondratiev wil->recovery_count++; 311fc219eedSVladimir Kondratiev else 312fc219eedSVladimir Kondratiev wil->recovery_count = 1; /* fw was alive for a long time */ 313fc219eedSVladimir Kondratiev 314fc219eedSVladimir Kondratiev if (wil->recovery_count > WIL6210_FW_RECOVERY_RETRIES) { 315fc219eedSVladimir Kondratiev wil_err(wil, "too many recovery attempts (%d), giving up\n", 316fc219eedSVladimir Kondratiev wil->recovery_count); 317fc219eedSVladimir Kondratiev return; 318fc219eedSVladimir Kondratiev } 319fc219eedSVladimir Kondratiev 320fc219eedSVladimir Kondratiev wil->last_fw_recovery = jiffies; 321fc219eedSVladimir Kondratiev 3229c3bde56SVladimir Kondratiev mutex_lock(&wil->mutex); 323ed6f9dc6SVladimir Kondratiev switch (wdev->iftype) { 324ed6f9dc6SVladimir Kondratiev case NL80211_IFTYPE_STATION: 325ed6f9dc6SVladimir Kondratiev case NL80211_IFTYPE_P2P_CLIENT: 326ed6f9dc6SVladimir Kondratiev case NL80211_IFTYPE_MONITOR: 327c33407a8SVladimir Kondratiev wil_info(wil, "fw error recovery requested (try %d)...\n", 328fc219eedSVladimir Kondratiev wil->recovery_count); 329c33407a8SVladimir Kondratiev if (!no_fw_recovery) 330c33407a8SVladimir Kondratiev wil->recovery_state = fw_recovery_running; 331c33407a8SVladimir Kondratiev if (0 != wil_wait_for_recovery(wil)) 332c33407a8SVladimir Kondratiev break; 333c33407a8SVladimir Kondratiev 33473d839aeSVladimir Kondratiev __wil_down(wil); 33573d839aeSVladimir Kondratiev __wil_up(wil); 336ed6f9dc6SVladimir Kondratiev break; 337ed6f9dc6SVladimir Kondratiev case NL80211_IFTYPE_AP: 338ed6f9dc6SVladimir Kondratiev case NL80211_IFTYPE_P2P_GO: 339e240537bSVladimir Kondratiev wil_info(wil, "No recovery for AP-like interface\n"); 340ed6f9dc6SVladimir Kondratiev /* recovery in these modes is done by upper layers */ 341ed6f9dc6SVladimir Kondratiev break; 342ed6f9dc6SVladimir Kondratiev default: 343e240537bSVladimir Kondratiev wil_err(wil, "No recovery - unknown interface type %d\n", 344e240537bSVladimir Kondratiev wdev->iftype); 345ed6f9dc6SVladimir Kondratiev break; 346ed6f9dc6SVladimir Kondratiev } 3479c3bde56SVladimir Kondratiev mutex_unlock(&wil->mutex); 348ed6f9dc6SVladimir Kondratiev } 349ed6f9dc6SVladimir Kondratiev 3509a177384SVladimir Kondratiev static int wil_find_free_vring(struct wil6210_priv *wil) 3519a177384SVladimir Kondratiev { 3529a177384SVladimir Kondratiev int i; 3538fe59627SVladimir Kondratiev 3549a177384SVladimir Kondratiev for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) { 3559a177384SVladimir Kondratiev if (!wil->vring_tx[i].va) 3569a177384SVladimir Kondratiev return i; 3579a177384SVladimir Kondratiev } 3589a177384SVladimir Kondratiev return -EINVAL; 3599a177384SVladimir Kondratiev } 3609a177384SVladimir Kondratiev 361d81079f1SVladimir Kondratiev static void wil_connect_worker(struct work_struct *work) 362d81079f1SVladimir Kondratiev { 363d81079f1SVladimir Kondratiev int rc; 364d81079f1SVladimir Kondratiev struct wil6210_priv *wil = container_of(work, struct wil6210_priv, 365d81079f1SVladimir Kondratiev connect_worker); 366d81079f1SVladimir Kondratiev int cid = wil->pending_connect_cid; 3679a177384SVladimir Kondratiev int ringid = wil_find_free_vring(wil); 368d81079f1SVladimir Kondratiev 369d81079f1SVladimir Kondratiev if (cid < 0) { 370d81079f1SVladimir Kondratiev wil_err(wil, "No connection pending\n"); 371d81079f1SVladimir Kondratiev return; 372d81079f1SVladimir Kondratiev } 373d81079f1SVladimir Kondratiev 374d81079f1SVladimir Kondratiev wil_dbg_wmi(wil, "Configure for connection CID %d\n", cid); 375d81079f1SVladimir Kondratiev 376d3762b40SVladimir Kondratiev rc = wil_vring_init_tx(wil, ringid, 1 << tx_ring_order, cid, 0); 377d81079f1SVladimir Kondratiev wil->pending_connect_cid = -1; 3783df2cd36SVladimir Kondratiev if (rc == 0) { 3793df2cd36SVladimir Kondratiev wil->sta[cid].status = wil_sta_connected; 380d81079f1SVladimir Kondratiev wil_link_on(wil); 3813df2cd36SVladimir Kondratiev } else { 3823df2cd36SVladimir Kondratiev wil->sta[cid].status = wil_sta_unused; 3833df2cd36SVladimir Kondratiev } 384d81079f1SVladimir Kondratiev } 385d81079f1SVladimir Kondratiev 3862be7d22fSVladimir Kondratiev int wil_priv_init(struct wil6210_priv *wil) 3872be7d22fSVladimir Kondratiev { 388ec81b5adSDedy Lansky uint i; 389ec81b5adSDedy Lansky 3907743882dSVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 3912be7d22fSVladimir Kondratiev 3923df2cd36SVladimir Kondratiev memset(wil->sta, 0, sizeof(wil->sta)); 393ec81b5adSDedy Lansky for (i = 0; i < WIL6210_MAX_CID; i++) 394ec81b5adSDedy Lansky spin_lock_init(&wil->sta[i].tid_rx_lock); 3953df2cd36SVladimir Kondratiev 3962be7d22fSVladimir Kondratiev mutex_init(&wil->mutex); 3972be7d22fSVladimir Kondratiev mutex_init(&wil->wmi_mutex); 3983277213fSVladimir Kondratiev mutex_init(&wil->back_rx_mutex); 3993a124ed6SVladimir Kondratiev mutex_init(&wil->back_tx_mutex); 4002be7d22fSVladimir Kondratiev 4012be7d22fSVladimir Kondratiev init_completion(&wil->wmi_ready); 40259502647SDedy Lansky init_completion(&wil->wmi_call); 4032be7d22fSVladimir Kondratiev 4042be7d22fSVladimir Kondratiev wil->pending_connect_cid = -1; 4052be7d22fSVladimir Kondratiev setup_timer(&wil->connect_timer, wil_connect_timer_fn, (ulong)wil); 406047e5d74SVladimir Kondratiev setup_timer(&wil->scan_timer, wil_scan_timer_fn, (ulong)wil); 4072be7d22fSVladimir Kondratiev 408d81079f1SVladimir Kondratiev INIT_WORK(&wil->connect_worker, wil_connect_worker); 4092be7d22fSVladimir Kondratiev INIT_WORK(&wil->disconnect_worker, wil_disconnect_worker); 4102be7d22fSVladimir Kondratiev INIT_WORK(&wil->wmi_event_worker, wmi_event_worker); 411ed6f9dc6SVladimir Kondratiev INIT_WORK(&wil->fw_error_worker, wil_fw_error_worker); 4123277213fSVladimir Kondratiev INIT_WORK(&wil->back_rx_worker, wil_back_rx_worker); 4133a124ed6SVladimir Kondratiev INIT_WORK(&wil->back_tx_worker, wil_back_tx_worker); 4142be7d22fSVladimir Kondratiev 4152be7d22fSVladimir Kondratiev INIT_LIST_HEAD(&wil->pending_wmi_ev); 4163277213fSVladimir Kondratiev INIT_LIST_HEAD(&wil->back_rx_pending); 4173a124ed6SVladimir Kondratiev INIT_LIST_HEAD(&wil->back_tx_pending); 4182be7d22fSVladimir Kondratiev spin_lock_init(&wil->wmi_ev_lock); 419c33407a8SVladimir Kondratiev init_waitqueue_head(&wil->wq); 4202be7d22fSVladimir Kondratiev 4212be7d22fSVladimir Kondratiev wil->wmi_wq = create_singlethread_workqueue(WIL_NAME "_wmi"); 4222be7d22fSVladimir Kondratiev if (!wil->wmi_wq) 4232be7d22fSVladimir Kondratiev return -EAGAIN; 4242be7d22fSVladimir Kondratiev 4253277213fSVladimir Kondratiev wil->wq_service = create_singlethread_workqueue(WIL_NAME "_service"); 4263277213fSVladimir Kondratiev if (!wil->wq_service) 4273277213fSVladimir Kondratiev goto out_wmi_wq; 4282be7d22fSVladimir Kondratiev 429fc219eedSVladimir Kondratiev wil->last_fw_recovery = jiffies; 430b6b1b0ecSVladimir Kondratiev wil->itr_trsh = itr_trsh; 431fc219eedSVladimir Kondratiev 4322be7d22fSVladimir Kondratiev return 0; 4333277213fSVladimir Kondratiev 4343277213fSVladimir Kondratiev out_wmi_wq: 4353277213fSVladimir Kondratiev destroy_workqueue(wil->wmi_wq); 4363277213fSVladimir Kondratiev 4373277213fSVladimir Kondratiev return -EAGAIN; 4382be7d22fSVladimir Kondratiev } 4392be7d22fSVladimir Kondratiev 440b516fcc5SVladimir Kondratiev /** 441b516fcc5SVladimir Kondratiev * wil6210_disconnect - disconnect one connection 442b516fcc5SVladimir Kondratiev * @wil: driver context 443b516fcc5SVladimir Kondratiev * @bssid: peer to disconnect, NULL to disconnect all 4444821e6d8SVladimir Kondratiev * @reason_code: Reason code for the Disassociation frame 445b516fcc5SVladimir Kondratiev * @from_event: whether is invoked from FW event handler 446b516fcc5SVladimir Kondratiev * 447b516fcc5SVladimir Kondratiev * Disconnect and release associated resources. If invoked not from the 448b516fcc5SVladimir Kondratiev * FW event handler, issue WMI command(s) to trigger MAC disconnect. 449b516fcc5SVladimir Kondratiev */ 450b516fcc5SVladimir Kondratiev void wil6210_disconnect(struct wil6210_priv *wil, const u8 *bssid, 4514821e6d8SVladimir Kondratiev u16 reason_code, bool from_event) 4522be7d22fSVladimir Kondratiev { 4539cf10d62SVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 4549cf10d62SVladimir Kondratiev 4552be7d22fSVladimir Kondratiev del_timer_sync(&wil->connect_timer); 4564821e6d8SVladimir Kondratiev _wil6210_disconnect(wil, bssid, reason_code, from_event); 4572be7d22fSVladimir Kondratiev } 4582be7d22fSVladimir Kondratiev 4592be7d22fSVladimir Kondratiev void wil_priv_deinit(struct wil6210_priv *wil) 4602be7d22fSVladimir Kondratiev { 4619cf10d62SVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 4629cf10d62SVladimir Kondratiev 463c33407a8SVladimir Kondratiev wil_set_recovery_state(wil, fw_recovery_idle); 464047e5d74SVladimir Kondratiev del_timer_sync(&wil->scan_timer); 4652be7d22fSVladimir Kondratiev cancel_work_sync(&wil->disconnect_worker); 466ed6f9dc6SVladimir Kondratiev cancel_work_sync(&wil->fw_error_worker); 467097638a0SVladimir Kondratiev mutex_lock(&wil->mutex); 4684821e6d8SVladimir Kondratiev wil6210_disconnect(wil, NULL, WLAN_REASON_DEAUTH_LEAVING, false); 469097638a0SVladimir Kondratiev mutex_unlock(&wil->mutex); 4702be7d22fSVladimir Kondratiev wmi_event_flush(wil); 4713277213fSVladimir Kondratiev wil_back_rx_flush(wil); 4723277213fSVladimir Kondratiev cancel_work_sync(&wil->back_rx_worker); 4733a124ed6SVladimir Kondratiev wil_back_tx_flush(wil); 4743a124ed6SVladimir Kondratiev cancel_work_sync(&wil->back_tx_worker); 4753277213fSVladimir Kondratiev destroy_workqueue(wil->wq_service); 4762be7d22fSVladimir Kondratiev destroy_workqueue(wil->wmi_wq); 4772be7d22fSVladimir Kondratiev } 4782be7d22fSVladimir Kondratiev 479151a9706SVladimir Kondratiev /* target operations */ 480151a9706SVladimir Kondratiev /* register read */ 481151a9706SVladimir Kondratiev #define R(a) ioread32(wil->csr + HOSTADDR(a)) 482151a9706SVladimir Kondratiev /* register write. wmb() to make sure it is completed */ 483151a9706SVladimir Kondratiev #define W(a, v) do { iowrite32(v, wil->csr + HOSTADDR(a)); wmb(); } while (0) 484151a9706SVladimir Kondratiev /* register set = read, OR, write */ 485151a9706SVladimir Kondratiev #define S(a, v) W(a, R(a) | v) 486151a9706SVladimir Kondratiev /* register clear = read, AND with inverted, write */ 487151a9706SVladimir Kondratiev #define C(a, v) W(a, R(a) & ~v) 488151a9706SVladimir Kondratiev 489151a9706SVladimir Kondratiev static inline void wil_halt_cpu(struct wil6210_priv *wil) 490151a9706SVladimir Kondratiev { 491151a9706SVladimir Kondratiev W(RGF_USER_USER_CPU_0, BIT_USER_USER_CPU_MAN_RST); 492151a9706SVladimir Kondratiev W(RGF_USER_MAC_CPU_0, BIT_USER_MAC_CPU_MAN_RST); 493151a9706SVladimir Kondratiev } 494151a9706SVladimir Kondratiev 495151a9706SVladimir Kondratiev static inline void wil_release_cpu(struct wil6210_priv *wil) 496151a9706SVladimir Kondratiev { 497151a9706SVladimir Kondratiev /* Start CPU */ 498151a9706SVladimir Kondratiev W(RGF_USER_USER_CPU_0, 1); 499151a9706SVladimir Kondratiev } 500151a9706SVladimir Kondratiev 501bbb2adc7SVladimir Kondratiev static int wil_target_reset(struct wil6210_priv *wil) 5022be7d22fSVladimir Kondratiev { 50398a65b59SVladimir Kondratiev int delay = 0; 50448516298SVladimir Kondratiev u32 x; 50536b10a72SVladimir Kondratiev u32 rev_id; 5066508281bSVladimir Kondratiev bool is_sparrow = (wil->board->board == WIL_BOARD_SPARROW); 50736b10a72SVladimir Kondratiev 5086508281bSVladimir Kondratiev wil_dbg_misc(wil, "Resetting \"%s\"...\n", wil->board->name); 5092be7d22fSVladimir Kondratiev 51017123991SVladimir Kondratiev wil->hw_version = R(RGF_USER_FW_REV_ID); 51136b10a72SVladimir Kondratiev rev_id = wil->hw_version & 0xff; 5126508281bSVladimir Kondratiev 5136508281bSVladimir Kondratiev /* Clear MAC link up */ 5146508281bSVladimir Kondratiev S(RGF_HP_CTRL, BIT(15)); 515151a9706SVladimir Kondratiev S(RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_HPAL_PERST_FROM_PAD); 516151a9706SVladimir Kondratiev S(RGF_USER_CLKS_CTL_SW_RST_MASK_0, BIT_CAR_PERST_RST); 517151a9706SVladimir Kondratiev 518151a9706SVladimir Kondratiev wil_halt_cpu(wil); 5192be7d22fSVladimir Kondratiev 520cce47711SVladimir Kondratiev /* Clear Fw Download notification */ 521cce47711SVladimir Kondratiev C(RGF_USER_USAGE_6, BIT(0)); 522cce47711SVladimir Kondratiev 5236508281bSVladimir Kondratiev if (is_sparrow) { 52448516298SVladimir Kondratiev S(RGF_CAF_OSC_CONTROL, BIT_CAF_OSC_XTAL_EN); 52548516298SVladimir Kondratiev /* XTAL stabilization should take about 3ms */ 52648516298SVladimir Kondratiev usleep_range(5000, 7000); 52748516298SVladimir Kondratiev x = R(RGF_CAF_PLL_LOCK_STATUS); 52848516298SVladimir Kondratiev if (!(x & BIT_CAF_OSC_DIG_XTAL_STABLE)) { 52948516298SVladimir Kondratiev wil_err(wil, "Xtal stabilization timeout\n" 53048516298SVladimir Kondratiev "RGF_CAF_PLL_LOCK_STATUS = 0x%08x\n", x); 53148516298SVladimir Kondratiev return -ETIME; 53248516298SVladimir Kondratiev } 53348516298SVladimir Kondratiev /* switch 10k to XTAL*/ 53448516298SVladimir Kondratiev C(RGF_USER_SPARROW_M_4, BIT_SPARROW_M_4_SEL_SLEEP_OR_REF); 53548516298SVladimir Kondratiev /* 40 MHz */ 53648516298SVladimir Kondratiev C(RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_CAR_AHB_SW_SEL); 53748516298SVladimir Kondratiev 5386508281bSVladimir Kondratiev W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0, 0x3ff81f); 539151a9706SVladimir Kondratiev W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1, 0xf); 5406508281bSVladimir Kondratiev } 5416508281bSVladimir Kondratiev 5422be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0xFE000000); 5432be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0x0000003F); 544151a9706SVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, is_sparrow ? 0x000000f0 : 0x00000170); 545151a9706SVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0xFFE7FE00); 5462be7d22fSVladimir Kondratiev 5476508281bSVladimir Kondratiev if (is_sparrow) { 5486508281bSVladimir Kondratiev W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_0, 0x0); 549151a9706SVladimir Kondratiev W(RGF_USER_CLKS_CTL_EXT_SW_RST_VEC_1, 0x0); 5506508281bSVladimir Kondratiev } 5516508281bSVladimir Kondratiev 5522be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0); 5532be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0); 5542be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_1, 0); 5552be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0); 5562be7d22fSVladimir Kondratiev 5576508281bSVladimir Kondratiev if (is_sparrow) { 5586508281bSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x00000003); 5596508281bSVladimir Kondratiev /* reset A2 PCIE AHB */ 5606508281bSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x00008000); 5616508281bSVladimir Kondratiev } else { 5622be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_3, 0x00000001); 56336b10a72SVladimir Kondratiev if (rev_id == 1) { 5646508281bSVladimir Kondratiev /* reset A1 BOTH PCIE AHB & PCIE RGF */ 5652be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x00000080); 56636b10a72SVladimir Kondratiev } else { 56717123991SVladimir Kondratiev W(RGF_PCIE_LOS_COUNTER_CTL, BIT(6) | BIT(8)); 56836b10a72SVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_2, 0x00008000); 56936b10a72SVladimir Kondratiev } 5706508281bSVladimir Kondratiev } 5716508281bSVladimir Kondratiev 5726508281bSVladimir Kondratiev /* TODO: check order here!!! Erez code is different */ 5732be7d22fSVladimir Kondratiev W(RGF_USER_CLKS_CTL_SW_RST_VEC_0, 0); 5742be7d22fSVladimir Kondratiev 575520d68e7SVladimir Kondratiev /* wait until device ready. typical time is 200..250 msec */ 57636b10a72SVladimir Kondratiev do { 577520d68e7SVladimir Kondratiev msleep(RST_DELAY); 57848516298SVladimir Kondratiev x = R(RGF_USER_HW_MACHINE_STATE); 579520d68e7SVladimir Kondratiev if (delay++ > RST_COUNT) { 580d28bcc30SVladimir Kondratiev wil_err(wil, "Reset not completed, hw_state 0x%08x\n", 58148516298SVladimir Kondratiev x); 582bbb2adc7SVladimir Kondratiev return -ETIME; 58336b10a72SVladimir Kondratiev } 58448516298SVladimir Kondratiev } while (x != HW_MACHINE_BOOT_DONE); 58536b10a72SVladimir Kondratiev 5866508281bSVladimir Kondratiev /* TODO: Erez check rev_id != 1 */ 5876508281bSVladimir Kondratiev if (!is_sparrow && (rev_id != 1)) 58817123991SVladimir Kondratiev W(RGF_PCIE_LOS_COUNTER_CTL, BIT(8)); 58936b10a72SVladimir Kondratiev 590972072aaSVladimir Kondratiev C(RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_RST_PWGD); 591972072aaSVladimir Kondratiev 592520d68e7SVladimir Kondratiev wil_dbg_misc(wil, "Reset completed in %d ms\n", delay * RST_DELAY); 593bbb2adc7SVladimir Kondratiev return 0; 594151a9706SVladimir Kondratiev } 5952be7d22fSVladimir Kondratiev 596b6b1b0ecSVladimir Kondratiev /** 597b6b1b0ecSVladimir Kondratiev * wil_set_itr_trsh: - apply interrupt coalescing params 598b6b1b0ecSVladimir Kondratiev */ 599b6b1b0ecSVladimir Kondratiev void wil_set_itr_trsh(struct wil6210_priv *wil) 600b6b1b0ecSVladimir Kondratiev { 601b6b1b0ecSVladimir Kondratiev /* disable, use usec resolution */ 602b6b1b0ecSVladimir Kondratiev W(RGF_DMA_ITR_CNT_CRL, BIT_DMA_ITR_CNT_CRL_EXT_TICK); 603b6b1b0ecSVladimir Kondratiev 604b6b1b0ecSVladimir Kondratiev /* disable interrupt moderation for monitor 605b6b1b0ecSVladimir Kondratiev * to get better timestamp precision 606b6b1b0ecSVladimir Kondratiev */ 607b6b1b0ecSVladimir Kondratiev if (wil->wdev->iftype == NL80211_IFTYPE_MONITOR) 608b6b1b0ecSVladimir Kondratiev return; 609b6b1b0ecSVladimir Kondratiev 610b6b1b0ecSVladimir Kondratiev wil_info(wil, "set ITR_TRSH = %d usec\n", wil->itr_trsh); 611b6b1b0ecSVladimir Kondratiev W(RGF_DMA_ITR_CNT_TRSH, wil->itr_trsh); 612b6b1b0ecSVladimir Kondratiev W(RGF_DMA_ITR_CNT_CRL, BIT_DMA_ITR_CNT_CRL_EN | 613b6b1b0ecSVladimir Kondratiev BIT_DMA_ITR_CNT_CRL_EXT_TICK); /* start it */ 614b6b1b0ecSVladimir Kondratiev } 615b6b1b0ecSVladimir Kondratiev 61636b10a72SVladimir Kondratiev #undef R 6172be7d22fSVladimir Kondratiev #undef W 6182be7d22fSVladimir Kondratiev #undef S 619972072aaSVladimir Kondratiev #undef C 6202be7d22fSVladimir Kondratiev 6212be7d22fSVladimir Kondratiev void wil_mbox_ring_le2cpus(struct wil6210_mbox_ring *r) 6222be7d22fSVladimir Kondratiev { 6232be7d22fSVladimir Kondratiev le32_to_cpus(&r->base); 6242be7d22fSVladimir Kondratiev le16_to_cpus(&r->entry_size); 6252be7d22fSVladimir Kondratiev le16_to_cpus(&r->size); 6262be7d22fSVladimir Kondratiev le32_to_cpus(&r->tail); 6272be7d22fSVladimir Kondratiev le32_to_cpus(&r->head); 6282be7d22fSVladimir Kondratiev } 6292be7d22fSVladimir Kondratiev 6302be7d22fSVladimir Kondratiev static int wil_wait_for_fw_ready(struct wil6210_priv *wil) 6312be7d22fSVladimir Kondratiev { 6322be7d22fSVladimir Kondratiev ulong to = msecs_to_jiffies(1000); 6332be7d22fSVladimir Kondratiev ulong left = wait_for_completion_timeout(&wil->wmi_ready, to); 6348fe59627SVladimir Kondratiev 6352be7d22fSVladimir Kondratiev if (0 == left) { 6362be7d22fSVladimir Kondratiev wil_err(wil, "Firmware not ready\n"); 6372be7d22fSVladimir Kondratiev return -ETIME; 6382be7d22fSVladimir Kondratiev } else { 63915e23124SVladimir Kondratiev wil_info(wil, "FW ready after %d ms. HW version 0x%08x\n", 64015e23124SVladimir Kondratiev jiffies_to_msecs(to-left), wil->hw_version); 6412be7d22fSVladimir Kondratiev } 6422be7d22fSVladimir Kondratiev return 0; 6432be7d22fSVladimir Kondratiev } 6442be7d22fSVladimir Kondratiev 6452be7d22fSVladimir Kondratiev /* 6462be7d22fSVladimir Kondratiev * We reset all the structures, and we reset the UMAC. 6472be7d22fSVladimir Kondratiev * After calling this routine, you're expected to reload 6482be7d22fSVladimir Kondratiev * the firmware. 6492be7d22fSVladimir Kondratiev */ 6502be7d22fSVladimir Kondratiev int wil_reset(struct wil6210_priv *wil) 6512be7d22fSVladimir Kondratiev { 6522be7d22fSVladimir Kondratiev int rc; 6532be7d22fSVladimir Kondratiev 6549cf10d62SVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 6559cf10d62SVladimir Kondratiev 656097638a0SVladimir Kondratiev WARN_ON(!mutex_is_locked(&wil->mutex)); 65773d839aeSVladimir Kondratiev WARN_ON(test_bit(wil_status_napi_en, &wil->status)); 658097638a0SVladimir Kondratiev 659097638a0SVladimir Kondratiev cancel_work_sync(&wil->disconnect_worker); 6604821e6d8SVladimir Kondratiev wil6210_disconnect(wil, NULL, WLAN_REASON_DEAUTH_LEAVING, false); 661097638a0SVladimir Kondratiev 6620fef1818SVladimir Kondratiev wil->status = 0; /* prevent NAPI from being scheduled */ 6630fef1818SVladimir Kondratiev 664ed6f9dc6SVladimir Kondratiev if (wil->scan_request) { 665ed6f9dc6SVladimir Kondratiev wil_dbg_misc(wil, "Abort scan_request 0x%p\n", 666ed6f9dc6SVladimir Kondratiev wil->scan_request); 667047e5d74SVladimir Kondratiev del_timer_sync(&wil->scan_timer); 668ed6f9dc6SVladimir Kondratiev cfg80211_scan_done(wil->scan_request, true); 669ed6f9dc6SVladimir Kondratiev wil->scan_request = NULL; 670ed6f9dc6SVladimir Kondratiev } 671ed6f9dc6SVladimir Kondratiev 672e4dbb093SVladimir Kondratiev wil_mask_irq(wil); 6732be7d22fSVladimir Kondratiev 674e08b5906SVladimir Kondratiev wmi_event_flush(wil); 675e08b5906SVladimir Kondratiev 6763277213fSVladimir Kondratiev flush_workqueue(wil->wq_service); 677e08b5906SVladimir Kondratiev flush_workqueue(wil->wmi_wq); 678e08b5906SVladimir Kondratiev 679bbb2adc7SVladimir Kondratiev rc = wil_target_reset(wil); 6808bf6adb9SVladimir Kondratiev wil_rx_fini(wil); 681bbb2adc7SVladimir Kondratiev if (rc) 682bbb2adc7SVladimir Kondratiev return rc; 683bbb2adc7SVladimir Kondratiev 684151a9706SVladimir Kondratiev if (!no_fw_load) { 685151a9706SVladimir Kondratiev wil_info(wil, "Use firmware <%s>\n", WIL_FW_NAME); 686151a9706SVladimir Kondratiev wil_halt_cpu(wil); 687151a9706SVladimir Kondratiev /* Loading f/w from the file */ 688151a9706SVladimir Kondratiev rc = wil_request_firmware(wil, WIL_FW_NAME); 689151a9706SVladimir Kondratiev if (rc) 690151a9706SVladimir Kondratiev return rc; 691151a9706SVladimir Kondratiev 692151a9706SVladimir Kondratiev /* clear any interrupts which on-card-firmware may have set */ 693151a9706SVladimir Kondratiev wil6210_clear_irq(wil); 694151a9706SVladimir Kondratiev { /* CAF_ICR - clear and mask */ 695151a9706SVladimir Kondratiev u32 a = HOSTADDR(RGF_CAF_ICR) + 696151a9706SVladimir Kondratiev offsetof(struct RGF_ICR, ICR); 697151a9706SVladimir Kondratiev u32 m = HOSTADDR(RGF_CAF_ICR) + 698151a9706SVladimir Kondratiev offsetof(struct RGF_ICR, IMV); 699151a9706SVladimir Kondratiev u32 icr = ioread32(wil->csr + a); 700151a9706SVladimir Kondratiev 701151a9706SVladimir Kondratiev iowrite32(icr, wil->csr + a); /* W1C */ 702151a9706SVladimir Kondratiev iowrite32(~0, wil->csr + m); 703151a9706SVladimir Kondratiev wmb(); /* wait for completion */ 704151a9706SVladimir Kondratiev } 705151a9706SVladimir Kondratiev wil_release_cpu(wil); 706151a9706SVladimir Kondratiev } else { 707151a9706SVladimir Kondratiev wil_info(wil, "Use firmware from on-card flash\n"); 708151a9706SVladimir Kondratiev } 7098bf6adb9SVladimir Kondratiev 7102be7d22fSVladimir Kondratiev /* init after reset */ 7112be7d22fSVladimir Kondratiev wil->pending_connect_cid = -1; 71216735d02SWolfram Sang reinit_completion(&wil->wmi_ready); 71359502647SDedy Lansky reinit_completion(&wil->wmi_call); 7142be7d22fSVladimir Kondratiev 715e4dbb093SVladimir Kondratiev wil_unmask_irq(wil); 7162be7d22fSVladimir Kondratiev 7172be7d22fSVladimir Kondratiev /* we just started MAC, wait for FW ready */ 7182be7d22fSVladimir Kondratiev rc = wil_wait_for_fw_ready(wil); 7192be7d22fSVladimir Kondratiev 7202be7d22fSVladimir Kondratiev return rc; 7212be7d22fSVladimir Kondratiev } 7222be7d22fSVladimir Kondratiev 723ed6f9dc6SVladimir Kondratiev void wil_fw_error_recovery(struct wil6210_priv *wil) 724ed6f9dc6SVladimir Kondratiev { 725ed6f9dc6SVladimir Kondratiev wil_dbg_misc(wil, "starting fw error recovery\n"); 726c33407a8SVladimir Kondratiev wil->recovery_state = fw_recovery_pending; 727ed6f9dc6SVladimir Kondratiev schedule_work(&wil->fw_error_worker); 728ed6f9dc6SVladimir Kondratiev } 7292be7d22fSVladimir Kondratiev 7302be7d22fSVladimir Kondratiev void wil_link_on(struct wil6210_priv *wil) 7312be7d22fSVladimir Kondratiev { 7322be7d22fSVladimir Kondratiev struct net_device *ndev = wil_to_ndev(wil); 7332be7d22fSVladimir Kondratiev 7347743882dSVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 7352be7d22fSVladimir Kondratiev 7362be7d22fSVladimir Kondratiev netif_carrier_on(ndev); 73755f8f680SVladimir Kondratiev wil_dbg_misc(wil, "netif_tx_wake : link on\n"); 7382be7d22fSVladimir Kondratiev netif_tx_wake_all_queues(ndev); 7392be7d22fSVladimir Kondratiev } 7402be7d22fSVladimir Kondratiev 7412be7d22fSVladimir Kondratiev void wil_link_off(struct wil6210_priv *wil) 7422be7d22fSVladimir Kondratiev { 7432be7d22fSVladimir Kondratiev struct net_device *ndev = wil_to_ndev(wil); 7442be7d22fSVladimir Kondratiev 7457743882dSVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 7462be7d22fSVladimir Kondratiev 7472be7d22fSVladimir Kondratiev netif_tx_stop_all_queues(ndev); 74855f8f680SVladimir Kondratiev wil_dbg_misc(wil, "netif_tx_stop : link off\n"); 7492be7d22fSVladimir Kondratiev netif_carrier_off(ndev); 7502be7d22fSVladimir Kondratiev } 7512be7d22fSVladimir Kondratiev 75273d839aeSVladimir Kondratiev int __wil_up(struct wil6210_priv *wil) 7532be7d22fSVladimir Kondratiev { 7542be7d22fSVladimir Kondratiev struct net_device *ndev = wil_to_ndev(wil); 7552be7d22fSVladimir Kondratiev struct wireless_dev *wdev = wil->wdev; 7562be7d22fSVladimir Kondratiev int rc; 7572be7d22fSVladimir Kondratiev 758097638a0SVladimir Kondratiev WARN_ON(!mutex_is_locked(&wil->mutex)); 759097638a0SVladimir Kondratiev 7602be7d22fSVladimir Kondratiev rc = wil_reset(wil); 7612be7d22fSVladimir Kondratiev if (rc) 7622be7d22fSVladimir Kondratiev return rc; 7632be7d22fSVladimir Kondratiev 764e31b2562SVladimir Kondratiev /* Rx VRING. After MAC and beacon */ 765d3762b40SVladimir Kondratiev rc = wil_rx_init(wil, 1 << rx_ring_order); 766e31b2562SVladimir Kondratiev if (rc) 767e31b2562SVladimir Kondratiev return rc; 768e31b2562SVladimir Kondratiev 7692be7d22fSVladimir Kondratiev switch (wdev->iftype) { 7702be7d22fSVladimir Kondratiev case NL80211_IFTYPE_STATION: 7717743882dSVladimir Kondratiev wil_dbg_misc(wil, "type: STATION\n"); 7722be7d22fSVladimir Kondratiev ndev->type = ARPHRD_ETHER; 7732be7d22fSVladimir Kondratiev break; 7742be7d22fSVladimir Kondratiev case NL80211_IFTYPE_AP: 7757743882dSVladimir Kondratiev wil_dbg_misc(wil, "type: AP\n"); 7762be7d22fSVladimir Kondratiev ndev->type = ARPHRD_ETHER; 7772be7d22fSVladimir Kondratiev break; 7782be7d22fSVladimir Kondratiev case NL80211_IFTYPE_P2P_CLIENT: 7797743882dSVladimir Kondratiev wil_dbg_misc(wil, "type: P2P_CLIENT\n"); 7802be7d22fSVladimir Kondratiev ndev->type = ARPHRD_ETHER; 7812be7d22fSVladimir Kondratiev break; 7822be7d22fSVladimir Kondratiev case NL80211_IFTYPE_P2P_GO: 7837743882dSVladimir Kondratiev wil_dbg_misc(wil, "type: P2P_GO\n"); 7842be7d22fSVladimir Kondratiev ndev->type = ARPHRD_ETHER; 7852be7d22fSVladimir Kondratiev break; 7862be7d22fSVladimir Kondratiev case NL80211_IFTYPE_MONITOR: 7877743882dSVladimir Kondratiev wil_dbg_misc(wil, "type: Monitor\n"); 7882be7d22fSVladimir Kondratiev ndev->type = ARPHRD_IEEE80211_RADIOTAP; 7892be7d22fSVladimir Kondratiev /* ARPHRD_IEEE80211 or ARPHRD_IEEE80211_RADIOTAP ? */ 7902be7d22fSVladimir Kondratiev break; 7912be7d22fSVladimir Kondratiev default: 7922be7d22fSVladimir Kondratiev return -EOPNOTSUPP; 7932be7d22fSVladimir Kondratiev } 7942be7d22fSVladimir Kondratiev 7952be7d22fSVladimir Kondratiev /* MAC address - pre-requisite for other commands */ 7962be7d22fSVladimir Kondratiev wmi_set_mac_address(wil, ndev->dev_addr); 7972be7d22fSVladimir Kondratiev 79873d839aeSVladimir Kondratiev wil_dbg_misc(wil, "NAPI enable\n"); 799e0287c4aSVladimir Kondratiev napi_enable(&wil->napi_rx); 800e0287c4aSVladimir Kondratiev napi_enable(&wil->napi_tx); 8010fef1818SVladimir Kondratiev set_bit(wil_status_napi_en, &wil->status); 802e0287c4aSVladimir Kondratiev 803f772ebfbSVladimir Kondratiev if (wil->platform_ops.bus_request) 804f772ebfbSVladimir Kondratiev wil->platform_ops.bus_request(wil->platform_handle, 805f772ebfbSVladimir Kondratiev WIL_MAX_BUS_REQUEST_KBPS); 806f772ebfbSVladimir Kondratiev 8072be7d22fSVladimir Kondratiev return 0; 8082be7d22fSVladimir Kondratiev } 8092be7d22fSVladimir Kondratiev 8102be7d22fSVladimir Kondratiev int wil_up(struct wil6210_priv *wil) 8112be7d22fSVladimir Kondratiev { 8122be7d22fSVladimir Kondratiev int rc; 8132be7d22fSVladimir Kondratiev 8149cf10d62SVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 8159cf10d62SVladimir Kondratiev 8162be7d22fSVladimir Kondratiev mutex_lock(&wil->mutex); 8172be7d22fSVladimir Kondratiev rc = __wil_up(wil); 8182be7d22fSVladimir Kondratiev mutex_unlock(&wil->mutex); 8192be7d22fSVladimir Kondratiev 8202be7d22fSVladimir Kondratiev return rc; 8212be7d22fSVladimir Kondratiev } 8222be7d22fSVladimir Kondratiev 82373d839aeSVladimir Kondratiev int __wil_down(struct wil6210_priv *wil) 8242be7d22fSVladimir Kondratiev { 825f172b563SDedy Lansky int iter = WAIT_FOR_DISCONNECT_TIMEOUT_MS / 826f172b563SDedy Lansky WAIT_FOR_DISCONNECT_INTERVAL_MS; 827f172b563SDedy Lansky 828097638a0SVladimir Kondratiev WARN_ON(!mutex_is_locked(&wil->mutex)); 829097638a0SVladimir Kondratiev 830f772ebfbSVladimir Kondratiev if (wil->platform_ops.bus_request) 831f772ebfbSVladimir Kondratiev wil->platform_ops.bus_request(wil->platform_handle, 0); 832f772ebfbSVladimir Kondratiev 83373d839aeSVladimir Kondratiev wil_disable_irq(wil); 83473d839aeSVladimir Kondratiev if (test_and_clear_bit(wil_status_napi_en, &wil->status)) { 835e0287c4aSVladimir Kondratiev napi_disable(&wil->napi_rx); 836e0287c4aSVladimir Kondratiev napi_disable(&wil->napi_tx); 83773d839aeSVladimir Kondratiev wil_dbg_misc(wil, "NAPI disable\n"); 83873d839aeSVladimir Kondratiev } 83973d839aeSVladimir Kondratiev wil_enable_irq(wil); 840e0287c4aSVladimir Kondratiev 8412be7d22fSVladimir Kondratiev if (wil->scan_request) { 8422a91d7d0SVladimir Kondratiev wil_dbg_misc(wil, "Abort scan_request 0x%p\n", 8432a91d7d0SVladimir Kondratiev wil->scan_request); 844047e5d74SVladimir Kondratiev del_timer_sync(&wil->scan_timer); 8452be7d22fSVladimir Kondratiev cfg80211_scan_done(wil->scan_request, true); 8462be7d22fSVladimir Kondratiev wil->scan_request = NULL; 8472be7d22fSVladimir Kondratiev } 8482be7d22fSVladimir Kondratiev 849f172b563SDedy Lansky if (test_bit(wil_status_fwconnected, &wil->status) || 850f172b563SDedy Lansky test_bit(wil_status_fwconnecting, &wil->status)) 851f172b563SDedy Lansky wmi_send(wil, WMI_DISCONNECT_CMDID, NULL, 0); 852f172b563SDedy Lansky 853f172b563SDedy Lansky /* make sure wil is idle (not connected) */ 854f172b563SDedy Lansky mutex_unlock(&wil->mutex); 855f172b563SDedy Lansky while (iter--) { 856f172b563SDedy Lansky int idle = !test_bit(wil_status_fwconnected, &wil->status) && 857f172b563SDedy Lansky !test_bit(wil_status_fwconnecting, &wil->status); 858f172b563SDedy Lansky if (idle) 859f172b563SDedy Lansky break; 860f172b563SDedy Lansky msleep(WAIT_FOR_DISCONNECT_INTERVAL_MS); 861f172b563SDedy Lansky } 862f172b563SDedy Lansky mutex_lock(&wil->mutex); 863f172b563SDedy Lansky 864f172b563SDedy Lansky if (!iter) 865f172b563SDedy Lansky wil_err(wil, "timeout waiting for idle FW/HW\n"); 866f172b563SDedy Lansky 8672be7d22fSVladimir Kondratiev wil_rx_fini(wil); 8682be7d22fSVladimir Kondratiev 8692be7d22fSVladimir Kondratiev return 0; 8702be7d22fSVladimir Kondratiev } 8712be7d22fSVladimir Kondratiev 8722be7d22fSVladimir Kondratiev int wil_down(struct wil6210_priv *wil) 8732be7d22fSVladimir Kondratiev { 8742be7d22fSVladimir Kondratiev int rc; 8752be7d22fSVladimir Kondratiev 8769cf10d62SVladimir Kondratiev wil_dbg_misc(wil, "%s()\n", __func__); 8779cf10d62SVladimir Kondratiev 878c33407a8SVladimir Kondratiev wil_set_recovery_state(wil, fw_recovery_idle); 8792be7d22fSVladimir Kondratiev mutex_lock(&wil->mutex); 8802be7d22fSVladimir Kondratiev rc = __wil_down(wil); 8812be7d22fSVladimir Kondratiev mutex_unlock(&wil->mutex); 8822be7d22fSVladimir Kondratiev 8832be7d22fSVladimir Kondratiev return rc; 8842be7d22fSVladimir Kondratiev } 8853df2cd36SVladimir Kondratiev 8863df2cd36SVladimir Kondratiev int wil_find_cid(struct wil6210_priv *wil, const u8 *mac) 8873df2cd36SVladimir Kondratiev { 8883df2cd36SVladimir Kondratiev int i; 8893df2cd36SVladimir Kondratiev int rc = -ENOENT; 8903df2cd36SVladimir Kondratiev 8913df2cd36SVladimir Kondratiev for (i = 0; i < ARRAY_SIZE(wil->sta); i++) { 8923df2cd36SVladimir Kondratiev if ((wil->sta[i].status != wil_sta_unused) && 893108d1eb6SVladimir Kondratiev ether_addr_equal(wil->sta[i].addr, mac)) { 8943df2cd36SVladimir Kondratiev rc = i; 8953df2cd36SVladimir Kondratiev break; 8963df2cd36SVladimir Kondratiev } 8973df2cd36SVladimir Kondratiev } 8983df2cd36SVladimir Kondratiev 8993df2cd36SVladimir Kondratiev return rc; 9003df2cd36SVladimir Kondratiev } 901