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path: root/drivers/net/wireless/iwmc3200wifi/rx.c
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Diffstat (limited to 'drivers/net/wireless/iwmc3200wifi/rx.c')
-rw-r--r--drivers/net/wireless/iwmc3200wifi/rx.c1701
1 files changed, 0 insertions, 1701 deletions
diff --git a/drivers/net/wireless/iwmc3200wifi/rx.c b/drivers/net/wireless/iwmc3200wifi/rx.c
deleted file mode 100644
index 7d708f4..0000000
--- a/drivers/net/wireless/iwmc3200wifi/rx.c
+++ /dev/null
@@ -1,1701 +0,0 @@
-/*
- * Intel Wireless Multicomm 3200 WiFi driver
- *
- * Copyright (C) 2009 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * Intel Corporation <ilw@linux.intel.com>
- * Samuel Ortiz <samuel.ortiz@intel.com>
- * Zhu Yi <yi.zhu@intel.com>
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/netdevice.h>
-#include <linux/sched.h>
-#include <linux/etherdevice.h>
-#include <linux/wireless.h>
-#include <linux/ieee80211.h>
-#include <linux/if_arp.h>
-#include <linux/list.h>
-#include <linux/slab.h>
-#include <net/iw_handler.h>
-
-#include "iwm.h"
-#include "debug.h"
-#include "hal.h"
-#include "umac.h"
-#include "lmac.h"
-#include "commands.h"
-#include "rx.h"
-#include "cfg80211.h"
-#include "eeprom.h"
-
-static int iwm_rx_check_udma_hdr(struct iwm_udma_in_hdr *hdr)
-{
- if ((le32_to_cpu(hdr->cmd) == UMAC_PAD_TERMINAL) ||
- (le32_to_cpu(hdr->size) == UMAC_PAD_TERMINAL))
- return -EINVAL;
-
- return 0;
-}
-
-static inline int iwm_rx_resp_size(struct iwm_udma_in_hdr *hdr)
-{
- return ALIGN(le32_to_cpu(hdr->size) + sizeof(struct iwm_udma_in_hdr),
- 16);
-}
-
-/*
- * Notification handlers:
- *
- * For every possible notification we can receive from the
- * target, we have a handler.
- * When we get a target notification, and there is no one
- * waiting for it, it's just processed through the rx code
- * path:
- *
- * iwm_rx_handle()
- * -> iwm_rx_handle_umac()
- * -> iwm_rx_handle_wifi()
- * -> iwm_rx_handle_resp()
- * -> iwm_ntf_*()
- *
- * OR
- *
- * -> iwm_rx_handle_non_wifi()
- *
- * If there are processes waiting for this notification, then
- * iwm_rx_handle_wifi() just wakes those processes up and they
- * grab the pending notification.
- */
-static int iwm_ntf_error(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size, struct iwm_wifi_cmd *cmd)
-{
- struct iwm_umac_notif_error *error;
- struct iwm_fw_error_hdr *fw_err;
-
- error = (struct iwm_umac_notif_error *)buf;
- fw_err = &error->err;
-
- memcpy(iwm->last_fw_err, fw_err, sizeof(struct iwm_fw_error_hdr));
-
- IWM_ERR(iwm, "%cMAC FW ERROR:\n",
- (le32_to_cpu(fw_err->category) == UMAC_SYS_ERR_CAT_LMAC) ? 'L' : 'U');
- IWM_ERR(iwm, "\tCategory: %d\n", le32_to_cpu(fw_err->category));
- IWM_ERR(iwm, "\tStatus: 0x%x\n", le32_to_cpu(fw_err->status));
- IWM_ERR(iwm, "\tPC: 0x%x\n", le32_to_cpu(fw_err->pc));
- IWM_ERR(iwm, "\tblink1: %d\n", le32_to_cpu(fw_err->blink1));
- IWM_ERR(iwm, "\tblink2: %d\n", le32_to_cpu(fw_err->blink2));
- IWM_ERR(iwm, "\tilink1: %d\n", le32_to_cpu(fw_err->ilink1));
- IWM_ERR(iwm, "\tilink2: %d\n", le32_to_cpu(fw_err->ilink2));
- IWM_ERR(iwm, "\tData1: 0x%x\n", le32_to_cpu(fw_err->data1));
- IWM_ERR(iwm, "\tData2: 0x%x\n", le32_to_cpu(fw_err->data2));
- IWM_ERR(iwm, "\tLine number: %d\n", le32_to_cpu(fw_err->line_num));
- IWM_ERR(iwm, "\tUMAC status: 0x%x\n", le32_to_cpu(fw_err->umac_status));
- IWM_ERR(iwm, "\tLMAC status: 0x%x\n", le32_to_cpu(fw_err->lmac_status));
- IWM_ERR(iwm, "\tSDIO status: 0x%x\n", le32_to_cpu(fw_err->sdio_status));
-
- iwm_resetting(iwm);
-
- return 0;
-}
-
-static int iwm_ntf_umac_alive(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size, struct iwm_wifi_cmd *cmd)
-{
- struct iwm_umac_notif_alive *alive_resp =
- (struct iwm_umac_notif_alive *)(buf);
- u16 status = le16_to_cpu(alive_resp->status);
-
- if (status == UMAC_NTFY_ALIVE_STATUS_ERR) {
- IWM_ERR(iwm, "Receive error UMAC_ALIVE\n");
- return -EIO;
- }
-
- iwm_tx_credit_init_pools(iwm, alive_resp);
-
- return 0;
-}
-
-static int iwm_ntf_init_complete(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size,
- struct iwm_wifi_cmd *cmd)
-{
- struct wiphy *wiphy = iwm_to_wiphy(iwm);
- struct iwm_umac_notif_init_complete *init_complete =
- (struct iwm_umac_notif_init_complete *)(buf);
- u16 status = le16_to_cpu(init_complete->status);
- bool blocked = (status == UMAC_NTFY_INIT_COMPLETE_STATUS_ERR);
-
- if (blocked)
- IWM_DBG_NTF(iwm, DBG, "Hardware rf kill is on (radio off)\n");
- else
- IWM_DBG_NTF(iwm, DBG, "Hardware rf kill is off (radio on)\n");
-
- wiphy_rfkill_set_hw_state(wiphy, blocked);
-
- return 0;
-}
-
-static int iwm_ntf_tx_credit_update(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size,
- struct iwm_wifi_cmd *cmd)
-{
- int pool_nr, total_freed_pages;
- unsigned long pool_map;
- int i, id;
- struct iwm_umac_notif_page_dealloc *dealloc =
- (struct iwm_umac_notif_page_dealloc *)buf;
-
- pool_nr = GET_VAL32(dealloc->changes, UMAC_DEALLOC_NTFY_CHANGES_CNT);
- pool_map = GET_VAL32(dealloc->changes, UMAC_DEALLOC_NTFY_CHANGES_MSK);
-
- IWM_DBG_TX(iwm, DBG, "UMAC dealloc notification: pool nr %d, "
- "update map 0x%lx\n", pool_nr, pool_map);
-
- spin_lock(&iwm->tx_credit.lock);
-
- for (i = 0; i < pool_nr; i++) {
- id = GET_VAL32(dealloc->grp_info[i],
- UMAC_DEALLOC_NTFY_GROUP_NUM);
- if (test_bit(id, &pool_map)) {
- total_freed_pages = GET_VAL32(dealloc->grp_info[i],
- UMAC_DEALLOC_NTFY_PAGE_CNT);
- iwm_tx_credit_inc(iwm, id, total_freed_pages);
- }
- }
-
- spin_unlock(&iwm->tx_credit.lock);
-
- return 0;
-}
-
-static int iwm_ntf_umac_reset(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size, struct iwm_wifi_cmd *cmd)
-{
- IWM_DBG_NTF(iwm, DBG, "UMAC RESET done\n");
-
- return 0;
-}
-
-static int iwm_ntf_lmac_version(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size,
- struct iwm_wifi_cmd *cmd)
-{
- IWM_DBG_NTF(iwm, INFO, "LMAC Version: %x.%x\n", buf[9], buf[8]);
-
- return 0;
-}
-
-static int iwm_ntf_tx(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size, struct iwm_wifi_cmd *cmd)
-{
- struct iwm_lmac_tx_resp *tx_resp;
- struct iwm_umac_wifi_in_hdr *hdr;
-
- tx_resp = (struct iwm_lmac_tx_resp *)
- (buf + sizeof(struct iwm_umac_wifi_in_hdr));
- hdr = (struct iwm_umac_wifi_in_hdr *)buf;
-
- IWM_DBG_TX(iwm, DBG, "REPLY_TX, buf size: %lu\n", buf_size);
-
- IWM_DBG_TX(iwm, DBG, "Seqnum: %d\n",
- le16_to_cpu(hdr->sw_hdr.cmd.seq_num));
- IWM_DBG_TX(iwm, DBG, "\tFrame cnt: %d\n", tx_resp->frame_cnt);
- IWM_DBG_TX(iwm, DBG, "\tRetry cnt: %d\n",
- le16_to_cpu(tx_resp->retry_cnt));
- IWM_DBG_TX(iwm, DBG, "\tSeq ctl: %d\n", le16_to_cpu(tx_resp->seq_ctl));
- IWM_DBG_TX(iwm, DBG, "\tByte cnt: %d\n",
- le16_to_cpu(tx_resp->byte_cnt));
- IWM_DBG_TX(iwm, DBG, "\tStatus: 0x%x\n", le32_to_cpu(tx_resp->status));
-
- return 0;
-}
-
-
-static int iwm_ntf_calib_res(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size, struct iwm_wifi_cmd *cmd)
-{
- u8 opcode;
- u8 *calib_buf;
- struct iwm_lmac_calib_hdr *hdr = (struct iwm_lmac_calib_hdr *)
- (buf + sizeof(struct iwm_umac_wifi_in_hdr));
-
- opcode = hdr->opcode;
-
- BUG_ON(opcode >= CALIBRATION_CMD_NUM ||
- opcode < PHY_CALIBRATE_OPCODES_NUM);
-
- IWM_DBG_NTF(iwm, DBG, "Store calibration result for opcode: %d\n",
- opcode);
-
- buf_size -= sizeof(struct iwm_umac_wifi_in_hdr);
- calib_buf = iwm->calib_res[opcode].buf;
-
- if (!calib_buf || (iwm->calib_res[opcode].size < buf_size)) {
- kfree(calib_buf);
- calib_buf = kzalloc(buf_size, GFP_KERNEL);
- if (!calib_buf) {
- IWM_ERR(iwm, "Memory allocation failed: calib_res\n");
- return -ENOMEM;
- }
- iwm->calib_res[opcode].buf = calib_buf;
- iwm->calib_res[opcode].size = buf_size;
- }
-
- memcpy(calib_buf, hdr, buf_size);
- set_bit(opcode - PHY_CALIBRATE_OPCODES_NUM, &iwm->calib_done_map);
-
- return 0;
-}
-
-static int iwm_ntf_calib_complete(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size,
- struct iwm_wifi_cmd *cmd)
-{
- IWM_DBG_NTF(iwm, DBG, "Calibration completed\n");
-
- return 0;
-}
-
-static int iwm_ntf_calib_cfg(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size, struct iwm_wifi_cmd *cmd)
-{
- struct iwm_lmac_cal_cfg_resp *cal_resp;
-
- cal_resp = (struct iwm_lmac_cal_cfg_resp *)
- (buf + sizeof(struct iwm_umac_wifi_in_hdr));
-
- IWM_DBG_NTF(iwm, DBG, "Calibration CFG command status: %d\n",
- le32_to_cpu(cal_resp->status));
-
- return 0;
-}
-
-static int iwm_ntf_wifi_status(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size, struct iwm_wifi_cmd *cmd)
-{
- struct iwm_umac_notif_wifi_status *status =
- (struct iwm_umac_notif_wifi_status *)buf;
-
- iwm->core_enabled |= le16_to_cpu(status->status);
-
- return 0;
-}
-
-static struct iwm_rx_ticket_node *
-iwm_rx_ticket_node_alloc(struct iwm_priv *iwm, struct iwm_rx_ticket *ticket)
-{
- struct iwm_rx_ticket_node *ticket_node;
-
- ticket_node = kzalloc(sizeof(struct iwm_rx_ticket_node), GFP_KERNEL);
- if (!ticket_node) {
- IWM_ERR(iwm, "Couldn't allocate ticket node\n");
- return ERR_PTR(-ENOMEM);
- }
-
- ticket_node->ticket = kmemdup(ticket, sizeof(struct iwm_rx_ticket),
- GFP_KERNEL);
- if (!ticket_node->ticket) {
- IWM_ERR(iwm, "Couldn't allocate RX ticket\n");
- kfree(ticket_node);
- return ERR_PTR(-ENOMEM);
- }
-
- INIT_LIST_HEAD(&ticket_node->node);
-
- return ticket_node;
-}
-
-static void iwm_rx_ticket_node_free(struct iwm_rx_ticket_node *ticket_node)
-{
- kfree(ticket_node->ticket);
- kfree(ticket_node);
-}
-
-static struct iwm_rx_packet *iwm_rx_packet_get(struct iwm_priv *iwm, u16 id)
-{
- u8 id_hash = IWM_RX_ID_GET_HASH(id);
- struct iwm_rx_packet *packet;
-
- spin_lock(&iwm->packet_lock[id_hash]);
- list_for_each_entry(packet, &iwm->rx_packets[id_hash], node)
- if (packet->id == id) {
- list_del(&packet->node);
- spin_unlock(&iwm->packet_lock[id_hash]);
- return packet;
- }
-
- spin_unlock(&iwm->packet_lock[id_hash]);
- return NULL;
-}
-
-static struct iwm_rx_packet *iwm_rx_packet_alloc(struct iwm_priv *iwm, u8 *buf,
- u32 size, u16 id)
-{
- struct iwm_rx_packet *packet;
-
- packet = kzalloc(sizeof(struct iwm_rx_packet), GFP_KERNEL);
- if (!packet) {
- IWM_ERR(iwm, "Couldn't allocate packet\n");
- return ERR_PTR(-ENOMEM);
- }
-
- packet->skb = dev_alloc_skb(size);
- if (!packet->skb) {
- IWM_ERR(iwm, "Couldn't allocate packet SKB\n");
- kfree(packet);
- return ERR_PTR(-ENOMEM);
- }
-
- packet->pkt_size = size;
-
- skb_put(packet->skb, size);
- memcpy(packet->skb->data, buf, size);
- INIT_LIST_HEAD(&packet->node);
- packet->id = id;
-
- return packet;
-}
-
-void iwm_rx_free(struct iwm_priv *iwm)
-{
- struct iwm_rx_ticket_node *ticket, *nt;
- struct iwm_rx_packet *packet, *np;
- int i;
-
- spin_lock(&iwm->ticket_lock);
- list_for_each_entry_safe(ticket, nt, &iwm->rx_tickets, node) {
- list_del(&ticket->node);
- iwm_rx_ticket_node_free(ticket);
- }
- spin_unlock(&iwm->ticket_lock);
-
- for (i = 0; i < IWM_RX_ID_HASH; i++) {
- spin_lock(&iwm->packet_lock[i]);
- list_for_each_entry_safe(packet, np, &iwm->rx_packets[i],
- node) {
- list_del(&packet->node);
- kfree_skb(packet->skb);
- kfree(packet);
- }
- spin_unlock(&iwm->packet_lock[i]);
- }
-}
-
-static int iwm_ntf_rx_ticket(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size, struct iwm_wifi_cmd *cmd)
-{
- struct iwm_umac_notif_rx_ticket *ntf_rx_ticket =
- (struct iwm_umac_notif_rx_ticket *)buf;
- struct iwm_rx_ticket *ticket =
- (struct iwm_rx_ticket *)ntf_rx_ticket->tickets;
- int i, schedule_rx = 0;
-
- for (i = 0; i < ntf_rx_ticket->num_tickets; i++) {
- struct iwm_rx_ticket_node *ticket_node;
-
- switch (le16_to_cpu(ticket->action)) {
- case IWM_RX_TICKET_RELEASE:
- case IWM_RX_TICKET_DROP:
- /* We can push the packet to the stack */
- ticket_node = iwm_rx_ticket_node_alloc(iwm, ticket);
- if (IS_ERR(ticket_node))
- return PTR_ERR(ticket_node);
-
- IWM_DBG_RX(iwm, DBG, "TICKET %s(%d)\n",
- __le16_to_cpu(ticket->action) ==
- IWM_RX_TICKET_RELEASE ?
- "RELEASE" : "DROP",
- ticket->id);
- spin_lock(&iwm->ticket_lock);
- list_add_tail(&ticket_node->node, &iwm->rx_tickets);
- spin_unlock(&iwm->ticket_lock);
-
- /*
- * We received an Rx ticket, most likely there's
- * a packet pending for it, it's not worth going
- * through the packet hash list to double check.
- * Let's just fire the rx worker..
- */
- schedule_rx = 1;
-
- break;
-
- default:
- IWM_ERR(iwm, "Invalid RX ticket action: 0x%x\n",
- ticket->action);
- }
-
- ticket++;
- }
-
- if (schedule_rx)
- queue_work(iwm->rx_wq, &iwm->rx_worker);
-
- return 0;
-}
-
-static int iwm_ntf_rx_packet(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size, struct iwm_wifi_cmd *cmd)
-{
- struct iwm_umac_wifi_in_hdr *wifi_hdr;
- struct iwm_rx_packet *packet;
- u16 id, buf_offset;
- u32 packet_size;
- u8 id_hash;
-
- IWM_DBG_RX(iwm, DBG, "\n");
-
- wifi_hdr = (struct iwm_umac_wifi_in_hdr *)buf;
- id = le16_to_cpu(wifi_hdr->sw_hdr.cmd.seq_num);
- buf_offset = sizeof(struct iwm_umac_wifi_in_hdr);
- packet_size = buf_size - sizeof(struct iwm_umac_wifi_in_hdr);
-
- IWM_DBG_RX(iwm, DBG, "CMD:0x%x, seqnum: %d, packet size: %d\n",
- wifi_hdr->sw_hdr.cmd.cmd, id, packet_size);
- IWM_DBG_RX(iwm, DBG, "Packet id: %d\n", id);
- IWM_HEXDUMP(iwm, DBG, RX, "PACKET: ", buf + buf_offset, packet_size);
-
- packet = iwm_rx_packet_alloc(iwm, buf + buf_offset, packet_size, id);
- if (IS_ERR(packet))
- return PTR_ERR(packet);
-
- id_hash = IWM_RX_ID_GET_HASH(id);
- spin_lock(&iwm->packet_lock[id_hash]);
- list_add_tail(&packet->node, &iwm->rx_packets[id_hash]);
- spin_unlock(&iwm->packet_lock[id_hash]);
-
- /* We might (unlikely) have received the packet _after_ the ticket */
- queue_work(iwm->rx_wq, &iwm->rx_worker);
-
- return 0;
-}
-
-/* MLME handlers */
-static int iwm_mlme_assoc_start(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size,
- struct iwm_wifi_cmd *cmd)
-{
- struct iwm_umac_notif_assoc_start *start;
-
- start = (struct iwm_umac_notif_assoc_start *)buf;
-
- IWM_DBG_MLME(iwm, INFO, "Association with %pM Started, reason: %d\n",
- start->bssid, le32_to_cpu(start->roam_reason));
-
- wake_up_interruptible(&iwm->mlme_queue);
-
- return 0;
-}
-
-static u8 iwm_is_open_wep_profile(struct iwm_priv *iwm)
-{
- if ((iwm->umac_profile->sec.ucast_cipher == UMAC_CIPHER_TYPE_WEP_40 ||
- iwm->umac_profile->sec.ucast_cipher == UMAC_CIPHER_TYPE_WEP_104) &&
- (iwm->umac_profile->sec.ucast_cipher ==
- iwm->umac_profile->sec.mcast_cipher) &&
- (iwm->umac_profile->sec.auth_type == UMAC_AUTH_TYPE_OPEN))
- return 1;
-
- return 0;
-}
-
-static int iwm_mlme_assoc_complete(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size,
- struct iwm_wifi_cmd *cmd)
-{
- struct wiphy *wiphy = iwm_to_wiphy(iwm);
- struct ieee80211_channel *chan;
- struct iwm_umac_notif_assoc_complete *complete =
- (struct iwm_umac_notif_assoc_complete *)buf;
-
- IWM_DBG_MLME(iwm, INFO, "Association with %pM completed, status: %d\n",
- complete->bssid, complete->status);
-
- switch (le32_to_cpu(complete->status)) {
- case UMAC_ASSOC_COMPLETE_SUCCESS:
- chan = ieee80211_get_channel(wiphy,
- ieee80211_channel_to_frequency(complete->channel,
- complete->band == UMAC_BAND_2GHZ ?
- IEEE80211_BAND_2GHZ :
- IEEE80211_BAND_5GHZ));
- if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
- /* Associated to a unallowed channel, disassociate. */
- __iwm_invalidate_mlme_profile(iwm);
- IWM_WARN(iwm, "Couldn't associate with %pM due to "
- "channel %d is disabled. Check your local "
- "regulatory setting.\n",
- complete->bssid, complete->channel);
- goto failure;
- }
-
- set_bit(IWM_STATUS_ASSOCIATED, &iwm->status);
- memcpy(iwm->bssid, complete->bssid, ETH_ALEN);
- iwm->channel = complete->channel;
-
- /* Internal roaming state, avoid notifying SME. */
- if (!test_and_clear_bit(IWM_STATUS_SME_CONNECTING, &iwm->status)
- && iwm->conf.mode == UMAC_MODE_BSS) {
- cancel_delayed_work(&iwm->disconnect);
- cfg80211_roamed(iwm_to_ndev(iwm), NULL,
- complete->bssid,
- iwm->req_ie, iwm->req_ie_len,
- iwm->resp_ie, iwm->resp_ie_len,
- GFP_KERNEL);
- break;
- }
-
- iwm_link_on(iwm);
-
- if (iwm->conf.mode == UMAC_MODE_IBSS)
- goto ibss;
-
- if (!test_bit(IWM_STATUS_RESETTING, &iwm->status))
- cfg80211_connect_result(iwm_to_ndev(iwm),
- complete->bssid,
- iwm->req_ie, iwm->req_ie_len,
- iwm->resp_ie, iwm->resp_ie_len,
- WLAN_STATUS_SUCCESS,
- GFP_KERNEL);
- else
- cfg80211_roamed(iwm_to_ndev(iwm), NULL,
- complete->bssid,
- iwm->req_ie, iwm->req_ie_len,
- iwm->resp_ie, iwm->resp_ie_len,
- GFP_KERNEL);
- break;
- case UMAC_ASSOC_COMPLETE_FAILURE:
- failure:
- clear_bit(IWM_STATUS_ASSOCIATED, &iwm->status);
- memset(iwm->bssid, 0, ETH_ALEN);
- iwm->channel = 0;
-
- /* Internal roaming state, avoid notifying SME. */
- if (!test_and_clear_bit(IWM_STATUS_SME_CONNECTING, &iwm->status)
- && iwm->conf.mode == UMAC_MODE_BSS) {
- cancel_delayed_work(&iwm->disconnect);
- break;
- }
-
- iwm_link_off(iwm);
-
- if (iwm->conf.mode == UMAC_MODE_IBSS)
- goto ibss;
-
- if (!test_bit(IWM_STATUS_RESETTING, &iwm->status))
- if (!iwm_is_open_wep_profile(iwm)) {
- cfg80211_connect_result(iwm_to_ndev(iwm),
- complete->bssid,
- NULL, 0, NULL, 0,
- WLAN_STATUS_UNSPECIFIED_FAILURE,
- GFP_KERNEL);
- } else {
- /* Let's try shared WEP auth */
- IWM_ERR(iwm, "Trying WEP shared auth\n");
- schedule_work(&iwm->auth_retry_worker);
- }
- else
- cfg80211_disconnected(iwm_to_ndev(iwm), 0, NULL, 0,
- GFP_KERNEL);
- break;
- default:
- break;
- }
-
- clear_bit(IWM_STATUS_RESETTING, &iwm->status);
- return 0;
-
- ibss:
- cfg80211_ibss_joined(iwm_to_ndev(iwm), iwm->bssid, GFP_KERNEL);
- clear_bit(IWM_STATUS_RESETTING, &iwm->status);
- return 0;
-}
-
-static int iwm_mlme_profile_invalidate(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size,
- struct iwm_wifi_cmd *cmd)
-{
- struct iwm_umac_notif_profile_invalidate *invalid;
- u32 reason;
-
- invalid = (struct iwm_umac_notif_profile_invalidate *)buf;
- reason = le32_to_cpu(invalid->reason);
-
- IWM_DBG_MLME(iwm, INFO, "Profile Invalidated. Reason: %d\n", reason);
-
- if (reason != UMAC_PROFILE_INVALID_REQUEST &&
- test_bit(IWM_STATUS_SME_CONNECTING, &iwm->status))
- cfg80211_connect_result(iwm_to_ndev(iwm), NULL, NULL, 0, NULL,
- 0, WLAN_STATUS_UNSPECIFIED_FAILURE,
- GFP_KERNEL);
-
- clear_bit(IWM_STATUS_SME_CONNECTING, &iwm->status);
- clear_bit(IWM_STATUS_ASSOCIATED, &iwm->status);
-
- iwm->umac_profile_active = false;
- memset(iwm->bssid, 0, ETH_ALEN);
- iwm->channel = 0;
-
- iwm_link_off(iwm);
-
- wake_up_interruptible(&iwm->mlme_queue);
-
- return 0;
-}
-
-#define IWM_DISCONNECT_INTERVAL (5 * HZ)
-
-static int iwm_mlme_connection_terminated(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size,
- struct iwm_wifi_cmd *cmd)
-{
- IWM_DBG_MLME(iwm, DBG, "Connection terminated\n");
-
- schedule_delayed_work(&iwm->disconnect, IWM_DISCONNECT_INTERVAL);
-
- return 0;
-}
-
-static int iwm_mlme_scan_complete(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size,
- struct iwm_wifi_cmd *cmd)
-{
- int ret;
- struct iwm_umac_notif_scan_complete *scan_complete =
- (struct iwm_umac_notif_scan_complete *)buf;
- u32 result = le32_to_cpu(scan_complete->result);
-
- IWM_DBG_MLME(iwm, INFO, "type:0x%x result:0x%x seq:%d\n",
- le32_to_cpu(scan_complete->type),
- le32_to_cpu(scan_complete->result),
- scan_complete->seq_num);
-
- if (!test_and_clear_bit(IWM_STATUS_SCANNING, &iwm->status)) {
- IWM_ERR(iwm, "Scan complete while device not scanning\n");
- return -EIO;
- }
- if (!iwm->scan_request)
- return 0;
-
- ret = iwm_cfg80211_inform_bss(iwm);
-
- cfg80211_scan_done(iwm->scan_request,
- (result & UMAC_SCAN_RESULT_ABORTED) ? 1 : !!ret);
- iwm->scan_request = NULL;
-
- return ret;
-}
-
-static int iwm_mlme_update_sta_table(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size,
- struct iwm_wifi_cmd *cmd)
-{
- struct iwm_umac_notif_sta_info *umac_sta =
- (struct iwm_umac_notif_sta_info *)buf;
- struct iwm_sta_info *sta;
- int i;
-
- switch (le32_to_cpu(umac_sta->opcode)) {
- case UMAC_OPCODE_ADD_MODIFY:
- sta = &iwm->sta_table[GET_VAL8(umac_sta->sta_id, LMAC_STA_ID)];
-
- IWM_DBG_MLME(iwm, INFO, "%s STA: ID = %d, Color = %d, "
- "addr = %pM, qos = %d\n",
- sta->valid ? "Modify" : "Add",
- GET_VAL8(umac_sta->sta_id, LMAC_STA_ID),
- GET_VAL8(umac_sta->sta_id, LMAC_STA_COLOR),
- umac_sta->mac_addr,
- umac_sta->flags & UMAC_STA_FLAG_QOS);
-
- sta->valid = true;
- sta->qos = umac_sta->flags & UMAC_STA_FLAG_QOS;
- sta->color = GET_VAL8(umac_sta->sta_id, LMAC_STA_COLOR);
- memcpy(sta->addr, umac_sta->mac_addr, ETH_ALEN);
- break;
- case UMAC_OPCODE_REMOVE:
- IWM_DBG_MLME(iwm, INFO, "Remove STA: ID = %d, Color = %d, "
- "addr = %pM\n",
- GET_VAL8(umac_sta->sta_id, LMAC_STA_ID),
- GET_VAL8(umac_sta->sta_id, LMAC_STA_COLOR),
- umac_sta->mac_addr);
-
- sta = &iwm->sta_table[GET_VAL8(umac_sta->sta_id, LMAC_STA_ID)];
-
- if (!memcmp(sta->addr, umac_sta->mac_addr, ETH_ALEN))
- sta->valid = false;
-
- break;
- case UMAC_OPCODE_CLEAR_ALL:
- for (i = 0; i < IWM_STA_TABLE_NUM; i++)
- iwm->sta_table[i].valid = false;
-
- break;
- default:
- break;
- }
-
- return 0;
-}
-
-static int iwm_mlme_medium_lost(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size,
- struct iwm_wifi_cmd *cmd)
-{
- struct wiphy *wiphy = iwm_to_wiphy(iwm);
-
- IWM_DBG_NTF(iwm, DBG, "WiFi/WiMax coexistence radio is OFF\n");
-
- wiphy_rfkill_set_hw_state(wiphy, true);
-
- return 0;
-}
-
-static int iwm_mlme_update_bss_table(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size,
- struct iwm_wifi_cmd *cmd)
-{
- struct wiphy *wiphy = iwm_to_wiphy(iwm);
- struct ieee80211_mgmt *mgmt;
- struct iwm_umac_notif_bss_info *umac_bss =
- (struct iwm_umac_notif_bss_info *)buf;
- struct ieee80211_channel *channel;
- struct ieee80211_supported_band *band;
- struct iwm_bss_info *bss;
- s32 signal;
- int freq;
- u16 frame_len = le16_to_cpu(umac_bss->frame_len);
- size_t bss_len = sizeof(struct iwm_umac_notif_bss_info) + frame_len;
-
- mgmt = (struct ieee80211_mgmt *)(umac_bss->frame_buf);
-
- IWM_DBG_MLME(iwm, DBG, "New BSS info entry: %pM\n", mgmt->bssid);
- IWM_DBG_MLME(iwm, DBG, "\tType: 0x%x\n", le32_to_cpu(umac_bss->type));
- IWM_DBG_MLME(iwm, DBG, "\tTimestamp: %d\n",
- le32_to_cpu(umac_bss->timestamp));
- IWM_DBG_MLME(iwm, DBG, "\tTable Index: %d\n",
- le16_to_cpu(umac_bss->table_idx));
- IWM_DBG_MLME(iwm, DBG, "\tBand: %d\n", umac_bss->band);
- IWM_DBG_MLME(iwm, DBG, "\tChannel: %d\n", umac_bss->channel);
- IWM_DBG_MLME(iwm, DBG, "\tRSSI: %d\n", umac_bss->rssi);
- IWM_DBG_MLME(iwm, DBG, "\tFrame Length: %d\n", frame_len);
-
- list_for_each_entry(bss, &iwm->bss_list, node)
- if (bss->bss->table_idx == umac_bss->table_idx)
- break;
-
- if (&bss->node != &iwm->bss_list) {
- /* Remove the old BSS entry, we will add it back later. */
- list_del(&bss->node);
- kfree(bss->bss);
- } else {
- /* New BSS entry */
-
- bss = kzalloc(sizeof(struct iwm_bss_info), GFP_KERNEL);
- if (!bss) {
- IWM_ERR(iwm, "Couldn't allocate bss_info\n");
- return -ENOMEM;
- }
- }
-
- bss->bss = kzalloc(bss_len, GFP_KERNEL);
- if (!bss->bss) {
- kfree(bss);
- IWM_ERR(iwm, "Couldn't allocate bss\n");
- return -ENOMEM;
- }
-
- INIT_LIST_HEAD(&bss->node);
- memcpy(bss->bss, umac_bss, bss_len);
-
- if (umac_bss->band == UMAC_BAND_2GHZ)
- band = wiphy->bands[IEEE80211_BAND_2GHZ];
- else if (umac_bss->band == UMAC_BAND_5GHZ)
- band = wiphy->bands[IEEE80211_BAND_5GHZ];
- else {
- IWM_ERR(iwm, "Invalid band: %d\n", umac_bss->band);
- goto err;
- }
-
- freq = ieee80211_channel_to_frequency(umac_bss->channel, band->band);
- channel = ieee80211_get_channel(wiphy, freq);
- signal = umac_bss->rssi * 100;
-
- bss->cfg_bss = cfg80211_inform_bss_frame(wiphy, channel,
- mgmt, frame_len,
- signal, GFP_KERNEL);
- if (!bss->cfg_bss)
- goto err;
-
- list_add_tail(&bss->node, &iwm->bss_list);
-
- return 0;
- err:
- kfree(bss->bss);
- kfree(bss);
-
- return -EINVAL;
-}
-
-static int iwm_mlme_remove_bss(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size, struct iwm_wifi_cmd *cmd)
-{
- struct iwm_umac_notif_bss_removed *bss_rm =
- (struct iwm_umac_notif_bss_removed *)buf;
- struct iwm_bss_info *bss, *next;
- u16 table_idx;
- int i;
-
- for (i = 0; i < le32_to_cpu(bss_rm->count); i++) {
- table_idx = le16_to_cpu(bss_rm->entries[i]) &
- IWM_BSS_REMOVE_INDEX_MSK;
- list_for_each_entry_safe(bss, next, &iwm->bss_list, node)
- if (bss->bss->table_idx == cpu_to_le16(table_idx)) {
- struct ieee80211_mgmt *mgmt;
-
- mgmt = (struct ieee80211_mgmt *)
- (bss->bss->frame_buf);
- IWM_DBG_MLME(iwm, ERR, "BSS removed: %pM\n",
- mgmt->bssid);
- list_del(&bss->node);
- kfree(bss->bss);
- kfree(bss);
- }
- }
-
- return 0;
-}
-
-static int iwm_mlme_mgt_frame(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size, struct iwm_wifi_cmd *cmd)
-{
- struct iwm_umac_notif_mgt_frame *mgt_frame =
- (struct iwm_umac_notif_mgt_frame *)buf;
- struct ieee80211_mgmt *mgt = (struct ieee80211_mgmt *)mgt_frame->frame;
-
- IWM_HEXDUMP(iwm, DBG, MLME, "MGT: ", mgt_frame->frame,
- le16_to_cpu(mgt_frame->len));
-
- if (ieee80211_is_assoc_req(mgt->frame_control)) {
- iwm->req_ie_len = le16_to_cpu(mgt_frame->len)
- - offsetof(struct ieee80211_mgmt,
- u.assoc_req.variable);
- kfree(iwm->req_ie);
- iwm->req_ie = kmemdup(mgt->u.assoc_req.variable,
- iwm->req_ie_len, GFP_KERNEL);
- } else if (ieee80211_is_reassoc_req(mgt->frame_control)) {
- iwm->req_ie_len = le16_to_cpu(mgt_frame->len)
- - offsetof(struct ieee80211_mgmt,
- u.reassoc_req.variable);
- kfree(iwm->req_ie);
- iwm->req_ie = kmemdup(mgt->u.reassoc_req.variable,
- iwm->req_ie_len, GFP_KERNEL);
- } else if (ieee80211_is_assoc_resp(mgt->frame_control)) {
- iwm->resp_ie_len = le16_to_cpu(mgt_frame->len)
- - offsetof(struct ieee80211_mgmt,
- u.assoc_resp.variable);
- kfree(iwm->resp_ie);
- iwm->resp_ie = kmemdup(mgt->u.assoc_resp.variable,
- iwm->resp_ie_len, GFP_KERNEL);
- } else if (ieee80211_is_reassoc_resp(mgt->frame_control)) {
- iwm->resp_ie_len = le16_to_cpu(mgt_frame->len)
- - offsetof(struct ieee80211_mgmt,
- u.reassoc_resp.variable);
- kfree(iwm->resp_ie);
- iwm->resp_ie = kmemdup(mgt->u.reassoc_resp.variable,
- iwm->resp_ie_len, GFP_KERNEL);
- } else {
- IWM_ERR(iwm, "Unsupported management frame: 0x%x",
- le16_to_cpu(mgt->frame_control));
- return 0;
- }
-
- return 0;
-}
-
-static int iwm_ntf_mlme(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size, struct iwm_wifi_cmd *cmd)
-{
- struct iwm_umac_notif_wifi_if *notif =
- (struct iwm_umac_notif_wifi_if *)buf;
-
- switch (notif->status) {
- case WIFI_IF_NTFY_ASSOC_START:
- return iwm_mlme_assoc_start(iwm, buf, buf_size, cmd);
- case WIFI_IF_NTFY_ASSOC_COMPLETE:
- return iwm_mlme_assoc_complete(iwm, buf, buf_size, cmd);
- case WIFI_IF_NTFY_PROFILE_INVALIDATE_COMPLETE:
- return iwm_mlme_profile_invalidate(iwm, buf, buf_size, cmd);
- case WIFI_IF_NTFY_CONNECTION_TERMINATED:
- return iwm_mlme_connection_terminated(iwm, buf, buf_size, cmd);
- case WIFI_IF_NTFY_SCAN_COMPLETE:
- return iwm_mlme_scan_complete(iwm, buf, buf_size, cmd);
- case WIFI_IF_NTFY_STA_TABLE_CHANGE:
- return iwm_mlme_update_sta_table(iwm, buf, buf_size, cmd);
- case WIFI_IF_NTFY_EXTENDED_IE_REQUIRED:
- IWM_DBG_MLME(iwm, DBG, "Extended IE required\n");
- break;
- case WIFI_IF_NTFY_RADIO_PREEMPTION:
- return iwm_mlme_medium_lost(iwm, buf, buf_size, cmd);
- case WIFI_IF_NTFY_BSS_TRK_TABLE_CHANGED:
- return iwm_mlme_update_bss_table(iwm, buf, buf_size, cmd);
- case WIFI_IF_NTFY_BSS_TRK_ENTRIES_REMOVED:
- return iwm_mlme_remove_bss(iwm, buf, buf_size, cmd);
- break;
- case WIFI_IF_NTFY_MGMT_FRAME:
- return iwm_mlme_mgt_frame(iwm, buf, buf_size, cmd);
- case WIFI_DBG_IF_NTFY_SCAN_SUPER_JOB_START:
- case WIFI_DBG_IF_NTFY_SCAN_SUPER_JOB_COMPLETE:
- case WIFI_DBG_IF_NTFY_SCAN_CHANNEL_START:
- case WIFI_DBG_IF_NTFY_SCAN_CHANNEL_RESULT:
- case WIFI_DBG_IF_NTFY_SCAN_MINI_JOB_START:
- case WIFI_DBG_IF_NTFY_SCAN_MINI_JOB_COMPLETE:
- case WIFI_DBG_IF_NTFY_CNCT_ATC_START:
- case WIFI_DBG_IF_NTFY_COEX_NOTIFICATION:
- case WIFI_DBG_IF_NTFY_COEX_HANDLE_ENVELOP:
- case WIFI_DBG_IF_NTFY_COEX_HANDLE_RELEASE_ENVELOP:
- IWM_DBG_MLME(iwm, DBG, "MLME debug notification: 0x%x\n",
- notif->status);
- break;
- default:
- IWM_ERR(iwm, "Unhandled notification: 0x%x\n", notif->status);
- break;
- }
-
- return 0;
-}
-
-#define IWM_STATS_UPDATE_INTERVAL (2 * HZ)
-
-static int iwm_ntf_statistics(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size, struct iwm_wifi_cmd *cmd)
-{
- struct iwm_umac_notif_stats *stats = (struct iwm_umac_notif_stats *)buf;
- struct iw_statistics *wstats = &iwm->wstats;
- u16 max_rate = 0;
- int i;
-
- IWM_DBG_MLME(iwm, DBG, "Statistics notification received\n");
-
- if (test_bit(IWM_STATUS_ASSOCIATED, &iwm->status)) {
- for (i = 0; i < UMAC_NTF_RATE_SAMPLE_NR; i++) {
- max_rate = max_t(u16, max_rate,
- max(le16_to_cpu(stats->tx_rate[i]),
- le16_to_cpu(stats->rx_rate[i])));
- }
- /* UMAC passes rate info multiplies by 2 */
- iwm->rate = max_rate >> 1;
- }
- iwm->txpower = le32_to_cpu(stats->tx_power);
-
- wstats->status = 0;
-
- wstats->discard.nwid = le32_to_cpu(stats->rx_drop_other_bssid);
- wstats->discard.code = le32_to_cpu(stats->rx_drop_decode);
- wstats->discard.fragment = le32_to_cpu(stats->rx_drop_reassembly);
- wstats->discard.retries = le32_to_cpu(stats->tx_drop_max_retry);
-
- wstats->miss.beacon = le32_to_cpu(stats->missed_beacons);
-
- /* according to cfg80211 */
- if (stats->rssi_dbm < -110)
- wstats->qual.qual = 0;
- else if (stats->rssi_dbm > -40)
- wstats->qual.qual = 70;
- else
- wstats->qual.qual = stats->rssi_dbm + 110;
-
- wstats->qual.level = stats->rssi_dbm;
- wstats->qual.noise = stats->noise_dbm;
- wstats->qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
-
- schedule_delayed_work(&iwm->stats_request, IWM_STATS_UPDATE_INTERVAL);
-
- mod_timer(&iwm->watchdog, round_jiffies(jiffies + IWM_WATCHDOG_PERIOD));
-
- return 0;
-}
-
-static int iwm_ntf_eeprom_proxy(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size,
- struct iwm_wifi_cmd *cmd)
-{
- struct iwm_umac_cmd_eeprom_proxy *eeprom_proxy =
- (struct iwm_umac_cmd_eeprom_proxy *)
- (buf + sizeof(struct iwm_umac_wifi_in_hdr));
- struct iwm_umac_cmd_eeprom_proxy_hdr *hdr = &eeprom_proxy->hdr;
- u32 hdr_offset = le32_to_cpu(hdr->offset);
- u32 hdr_len = le32_to_cpu(hdr->len);
- u32 hdr_type = le32_to_cpu(hdr->type);
-
- IWM_DBG_NTF(iwm, DBG, "type: 0x%x, len: %d, offset: 0x%x\n",
- hdr_type, hdr_len, hdr_offset);
-
- if ((hdr_offset + hdr_len) > IWM_EEPROM_LEN)
- return -EINVAL;
-
- switch (hdr_type) {
- case IWM_UMAC_CMD_EEPROM_TYPE_READ:
- memcpy(iwm->eeprom + hdr_offset, eeprom_proxy->buf, hdr_len);
- break;
- case IWM_UMAC_CMD_EEPROM_TYPE_WRITE:
- default:
- return -ENOTSUPP;
- }
-
- return 0;
-}
-
-static int iwm_ntf_channel_info_list(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size,
- struct iwm_wifi_cmd *cmd)
-{
- struct iwm_umac_cmd_get_channel_list *ch_list =
- (struct iwm_umac_cmd_get_channel_list *)
- (buf + sizeof(struct iwm_umac_wifi_in_hdr));
- struct wiphy *wiphy = iwm_to_wiphy(iwm);
- struct ieee80211_supported_band *band;
- int i;
-
- band = wiphy->bands[IEEE80211_BAND_2GHZ];
-
- for (i = 0; i < band->n_channels; i++) {
- unsigned long ch_mask_0 =
- le32_to_cpu(ch_list->ch[0].channels_mask);
- unsigned long ch_mask_2 =
- le32_to_cpu(ch_list->ch[2].channels_mask);
-
- if (!test_bit(i, &ch_mask_0))
- band->channels[i].flags |= IEEE80211_CHAN_DISABLED;
-
- if (!test_bit(i, &ch_mask_2))
- band->channels[i].flags |= IEEE80211_CHAN_NO_IBSS;
- }
-
- band = wiphy->bands[IEEE80211_BAND_5GHZ];
-
- for (i = 0; i < min(band->n_channels, 32); i++) {
- unsigned long ch_mask_1 =
- le32_to_cpu(ch_list->ch[1].channels_mask);
- unsigned long ch_mask_3 =
- le32_to_cpu(ch_list->ch[3].channels_mask);
-
- if (!test_bit(i, &ch_mask_1))
- band->channels[i].flags |= IEEE80211_CHAN_DISABLED;
-
- if (!test_bit(i, &ch_mask_3))
- band->channels[i].flags |= IEEE80211_CHAN_NO_IBSS;
- }
-
- return 0;
-}
-
-static int iwm_ntf_stop_resume_tx(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size,
- struct iwm_wifi_cmd *cmd)
-{
- struct iwm_umac_notif_stop_resume_tx *stp_res_tx =
- (struct iwm_umac_notif_stop_resume_tx *)buf;
- struct iwm_sta_info *sta_info;
- struct iwm_tid_info *tid_info;
- u8 sta_id = STA_ID_N_COLOR_ID(stp_res_tx->sta_id);
- u16 tid_msk = le16_to_cpu(stp_res_tx->stop_resume_tid_msk);
- int bit, ret = 0;
- bool stop = false;
-
- IWM_DBG_NTF(iwm, DBG, "stop/resume notification:\n"
- "\tflags: 0x%x\n"
- "\tSTA id: %d\n"
- "\tTID bitmask: 0x%x\n",
- stp_res_tx->flags, stp_res_tx->sta_id,
- stp_res_tx->stop_resume_tid_msk);
-
- if (stp_res_tx->flags & UMAC_STOP_TX_FLAG)
- stop = true;
-
- sta_info = &iwm->sta_table[sta_id];
- if (!sta_info->valid) {
- IWM_ERR(iwm, "Stoping an invalid STA: %d %d\n",
- sta_id, stp_res_tx->sta_id);
- return -EINVAL;
- }
-
- for_each_set_bit(bit, (unsigned long *)&tid_msk, IWM_UMAC_TID_NR) {
- tid_info = &sta_info->tid_info[bit];
-
- mutex_lock(&tid_info->mutex);
- tid_info->stopped = stop;
- mutex_unlock(&tid_info->mutex);
-
- if (!stop) {
- struct iwm_tx_queue *txq;
- int queue = iwm_tid_to_queue(bit);
-
- if (queue < 0)
- continue;
-
- txq = &iwm->txq[queue];
- /*
- * If we resume, we have to move our SKBs
- * back to the tx queue and queue some work.
- */
- spin_lock_bh(&txq->lock);
- skb_queue_splice_init(&txq->queue, &txq->stopped_queue);
- spin_unlock_bh(&txq->lock);
-
- queue_work(txq->wq, &txq->worker);
- }
-
- }
-
- /* We send an ACK only for the stop case */
- if (stop)
- ret = iwm_send_umac_stop_resume_tx(iwm, stp_res_tx);
-
- return ret;
-}
-
-static int iwm_ntf_wifi_if_wrapper(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size,
- struct iwm_wifi_cmd *cmd)
-{
- struct iwm_umac_wifi_if *hdr;
-
- if (cmd == NULL) {
- IWM_ERR(iwm, "Couldn't find expected wifi command\n");
- return -EINVAL;
- }
-
- hdr = (struct iwm_umac_wifi_if *)cmd->buf.payload;
-
- IWM_DBG_NTF(iwm, DBG, "WIFI_IF_WRAPPER cmd is delivered to UMAC: "
- "oid is 0x%x\n", hdr->oid);
-
- set_bit(hdr->oid, &iwm->wifi_ntfy[0]);
- wake_up_interruptible(&iwm->wifi_ntfy_queue);
-
- switch (hdr->oid) {
- case UMAC_WIFI_IF_CMD_SET_PROFILE:
- iwm->umac_profile_active = true;
- break;
- default:
- break;
- }
-
- return 0;
-}
-
-#define CT_KILL_DELAY (30 * HZ)
-static int iwm_ntf_card_state(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size, struct iwm_wifi_cmd *cmd)
-{
- struct wiphy *wiphy = iwm_to_wiphy(iwm);
- struct iwm_lmac_card_state *state = (struct iwm_lmac_card_state *)
- (buf + sizeof(struct iwm_umac_wifi_in_hdr));
- u32 flags = le32_to_cpu(state->flags);
-
- IWM_INFO(iwm, "HW RF Kill %s, CT Kill %s\n",
- flags & IWM_CARD_STATE_HW_DISABLED ? "ON" : "OFF",
- flags & IWM_CARD_STATE_CTKILL_DISABLED ? "ON" : "OFF");
-
- if (flags & IWM_CARD_STATE_CTKILL_DISABLED) {
- /*
- * We got a CTKILL event: We bring the interface down in
- * oder to cool the device down, and try to bring it up
- * 30 seconds later. If it's still too hot, we'll go through
- * this code path again.
- */
- cancel_delayed_work_sync(&iwm->ct_kill_delay);
- schedule_delayed_work(&iwm->ct_kill_delay, CT_KILL_DELAY);
- }
-
- wiphy_rfkill_set_hw_state(wiphy, flags &
- (IWM_CARD_STATE_HW_DISABLED |
- IWM_CARD_STATE_CTKILL_DISABLED));
-
- return 0;
-}
-
-static int iwm_rx_handle_wifi(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size)
-{
- struct iwm_umac_wifi_in_hdr *wifi_hdr;
- struct iwm_wifi_cmd *cmd;
- u8 source, cmd_id;
- u16 seq_num;
- u32 count;
-
- wifi_hdr = (struct iwm_umac_wifi_in_hdr *)buf;
- cmd_id = wifi_hdr->sw_hdr.cmd.cmd;
- source = GET_VAL32(wifi_hdr->hw_hdr.cmd, UMAC_HDI_IN_CMD_SOURCE);
- if (source >= IWM_SRC_NUM) {
- IWM_CRIT(iwm, "invalid source %d\n", source);
- return -EINVAL;
- }
-
- if (cmd_id == REPLY_RX_MPDU_CMD)
- trace_iwm_rx_packet(iwm, buf, buf_size);
- else if ((cmd_id == UMAC_NOTIFY_OPCODE_RX_TICKET) &&
- (source == UMAC_HDI_IN_SOURCE_FW))
- trace_iwm_rx_ticket(iwm, buf, buf_size);
- else
- trace_iwm_rx_wifi_cmd(iwm, wifi_hdr);
-
- count = GET_VAL32(wifi_hdr->sw_hdr.meta_data, UMAC_FW_CMD_BYTE_COUNT);
- count += sizeof(struct iwm_umac_wifi_in_hdr) -
- sizeof(struct iwm_dev_cmd_hdr);
- if (count > buf_size) {
- IWM_CRIT(iwm, "count %d, buf size:%ld\n", count, buf_size);
- return -EINVAL;
- }
-
- seq_num = le16_to_cpu(wifi_hdr->sw_hdr.cmd.seq_num);
-
- IWM_DBG_RX(iwm, DBG, "CMD:0x%x, source: 0x%x, seqnum: %d\n",
- cmd_id, source, seq_num);
-
- /*
- * If this is a response to a previously sent command, there must
- * be a pending command for this sequence number.
- */
- cmd = iwm_get_pending_wifi_cmd(iwm, seq_num);
-
- /* Notify the caller only for sync commands. */
- switch (source) {
- case UMAC_HDI_IN_SOURCE_FHRX:
- if (iwm->lmac_handlers[cmd_id] &&
- test_bit(cmd_id, &iwm->lmac_handler_map[0]))
- return iwm_notif_send(iwm, cmd, cmd_id, source,
- buf, count);
- break;
- case UMAC_HDI_IN_SOURCE_FW:
- if (iwm->umac_handlers[cmd_id] &&
- test_bit(cmd_id, &iwm->umac_handler_map[0]))
- return iwm_notif_send(iwm, cmd, cmd_id, source,
- buf, count);
- break;
- case UMAC_HDI_IN_SOURCE_UDMA:
- break;
- }
-
- return iwm_rx_handle_resp(iwm, buf, count, cmd);
-}
-
-int iwm_rx_handle_resp(struct iwm_priv *iwm, u8 *buf, unsigned long buf_size,
- struct iwm_wifi_cmd *cmd)
-{
- u8 source, cmd_id;
- struct iwm_umac_wifi_in_hdr *wifi_hdr;
- int ret = 0;
-
- wifi_hdr = (struct iwm_umac_wifi_in_hdr *)buf;
- cmd_id = wifi_hdr->sw_hdr.cmd.cmd;
-
- source = GET_VAL32(wifi_hdr->hw_hdr.cmd, UMAC_HDI_IN_CMD_SOURCE);
-
- IWM_DBG_RX(iwm, DBG, "CMD:0x%x, source: 0x%x\n", cmd_id, source);
-
- switch (source) {
- case UMAC_HDI_IN_SOURCE_FHRX:
- if (iwm->lmac_handlers[cmd_id])
- ret = iwm->lmac_handlers[cmd_id]
- (iwm, buf, buf_size, cmd);
- break;
- case UMAC_HDI_IN_SOURCE_FW:
- if (iwm->umac_handlers[cmd_id])
- ret = iwm->umac_handlers[cmd_id]
- (iwm, buf, buf_size, cmd);
- break;
- case UMAC_HDI_IN_SOURCE_UDMA:
- ret = -EINVAL;
- break;
- }
-
- kfree(cmd);
-
- return ret;
-}
-
-static int iwm_rx_handle_nonwifi(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size)
-{
- u8 seq_num;
- struct iwm_udma_in_hdr *hdr = (struct iwm_udma_in_hdr *)buf;
- struct iwm_nonwifi_cmd *cmd;
-
- trace_iwm_rx_nonwifi_cmd(iwm, buf, buf_size);
- seq_num = GET_VAL32(hdr->cmd, UDMA_HDI_IN_CMD_NON_WIFI_HW_SEQ_NUM);
-
- /*
- * We received a non wifi answer.
- * Let's check if there's a pending command for it, and if so
- * replace the command payload with the buffer, and then wake the
- * callers up.
- * That means we only support synchronised non wifi command response
- * schemes.
- */
- list_for_each_entry(cmd, &iwm->nonwifi_pending_cmd, pending)
- if (cmd->seq_num == seq_num) {
- cmd->resp_received = true;
- cmd->buf.len = buf_size;
- memcpy(cmd->buf.hdr, buf, buf_size);
- wake_up_interruptible(&iwm->nonwifi_queue);
- }
-
- return 0;
-}
-
-static int iwm_rx_handle_umac(struct iwm_priv *iwm, u8 *buf,
- unsigned long buf_size)
-{
- int ret = 0;
- u8 op_code;
- unsigned long buf_offset = 0;
- struct iwm_udma_in_hdr *hdr;
-
- /*
- * To allow for a more efficient bus usage, UMAC
- * messages are encapsulated into UDMA ones. This
- * way we can have several UMAC messages in one bus
- * transfer.
- * A UDMA frame size is always aligned on 16 bytes,
- * and a UDMA frame must not start with a UMAC_PAD_TERMINAL
- * word. This is how we parse a bus frame into several
- * UDMA ones.
- */
- while (buf_offset < buf_size) {
-
- hdr = (struct iwm_udma_in_hdr *)(buf + buf_offset);
-
- if (iwm_rx_check_udma_hdr(hdr) < 0) {
- IWM_DBG_RX(iwm, DBG, "End of frame\n");
- break;
- }
-
- op_code = GET_VAL32(hdr->cmd, UMAC_HDI_IN_CMD_OPCODE);
-
- IWM_DBG_RX(iwm, DBG, "Op code: 0x%x\n", op_code);
-
- if (op_code == UMAC_HDI_IN_OPCODE_WIFI) {
- ret |= iwm_rx_handle_wifi(iwm, buf + buf_offset,
- buf_size - buf_offset);
- } else if (op_code < UMAC_HDI_IN_OPCODE_NONWIFI_MAX) {
- if (GET_VAL32(hdr->cmd,
- UDMA_HDI_IN_CMD_NON_WIFI_HW_SIG) !=
- UDMA_HDI_IN_CMD_NON_WIFI_HW_SIG) {
- IWM_ERR(iwm, "Incorrect hw signature\n");
- return -EINVAL;
- }
- ret |= iwm_rx_handle_nonwifi(iwm, buf + buf_offset,
- buf_size - buf_offset);
- } else {
- IWM_ERR(iwm, "Invalid RX opcode: 0x%x\n", op_code);
- ret |= -EINVAL;
- }
-
- buf_offset += iwm_rx_resp_size(hdr);
- }
-
- return ret;
-}
-
-int iwm_rx_handle(struct iwm_priv *iwm, u8 *buf, unsigned long buf_size)
-{
- struct iwm_udma_in_hdr *hdr;
-
- hdr = (struct iwm_udma_in_hdr *)buf;
-
- switch (le32_to_cpu(hdr->cmd)) {
- case UMAC_REBOOT_BARKER:
- if (test_bit(IWM_STATUS_READY, &iwm->status)) {
- IWM_ERR(iwm, "Unexpected BARKER\n");
-
- schedule_work(&iwm->reset_worker);
-
- return 0;
- }
-
- return iwm_notif_send(iwm, NULL, IWM_BARKER_REBOOT_NOTIFICATION,
- IWM_SRC_UDMA, buf, buf_size);
- case UMAC_ACK_BARKER:
- return iwm_notif_send(iwm, NULL, IWM_ACK_BARKER_NOTIFICATION,
- IWM_SRC_UDMA, NULL, 0);
- default:
- IWM_DBG_RX(iwm, DBG, "Received cmd: 0x%x\n", hdr->cmd);
- return iwm_rx_handle_umac(iwm, buf, buf_size);
- }
-
- return 0;
-}
-
-static const iwm_handler iwm_umac_handlers[] =
-{
- [UMAC_NOTIFY_OPCODE_ERROR] = iwm_ntf_error,
- [UMAC_NOTIFY_OPCODE_ALIVE] = iwm_ntf_umac_alive,
- [UMAC_NOTIFY_OPCODE_INIT_COMPLETE] = iwm_ntf_init_complete,
- [UMAC_NOTIFY_OPCODE_WIFI_CORE_STATUS] = iwm_ntf_wifi_status,
- [UMAC_NOTIFY_OPCODE_WIFI_IF_WRAPPER] = iwm_ntf_mlme,
- [UMAC_NOTIFY_OPCODE_PAGE_DEALLOC] = iwm_ntf_tx_credit_update,
- [UMAC_NOTIFY_OPCODE_RX_TICKET] = iwm_ntf_rx_ticket,
- [UMAC_CMD_OPCODE_RESET] = iwm_ntf_umac_reset,
- [UMAC_NOTIFY_OPCODE_STATS] = iwm_ntf_statistics,
- [UMAC_CMD_OPCODE_EEPROM_PROXY] = iwm_ntf_eeprom_proxy,
- [UMAC_CMD_OPCODE_GET_CHAN_INFO_LIST] = iwm_ntf_channel_info_list,
- [UMAC_CMD_OPCODE_STOP_RESUME_STA_TX] = iwm_ntf_stop_resume_tx,
- [REPLY_RX_MPDU_CMD] = iwm_ntf_rx_packet,
- [UMAC_CMD_OPCODE_WIFI_IF_WRAPPER] = iwm_ntf_wifi_if_wrapper,
-};
-
-static const iwm_handler iwm_lmac_handlers[] =
-{
- [REPLY_TX] = iwm_ntf_tx,
- [REPLY_ALIVE] = iwm_ntf_lmac_version,
- [CALIBRATION_RES_NOTIFICATION] = iwm_ntf_calib_res,
- [CALIBRATION_COMPLETE_NOTIFICATION] = iwm_ntf_calib_complete,
- [CALIBRATION_CFG_CMD] = iwm_ntf_calib_cfg,
- [REPLY_RX_MPDU_CMD] = iwm_ntf_rx_packet,
- [CARD_STATE_NOTIFICATION] = iwm_ntf_card_state,
-};
-
-void iwm_rx_setup_handlers(struct iwm_priv *iwm)
-{
- iwm->umac_handlers = (iwm_handler *) iwm_umac_handlers;
- iwm->lmac_handlers = (iwm_handler *) iwm_lmac_handlers;
-}
-
-static void iwm_remove_iv(struct sk_buff *skb, u32 hdr_total_len)
-{
- struct ieee80211_hdr *hdr;
- unsigned int hdr_len;
-
- hdr = (struct ieee80211_hdr *)skb->data;
-
- if (!ieee80211_has_protected(hdr->frame_control))
- return;
-
- hdr_len = ieee80211_hdrlen(hdr->frame_control);
- if (hdr_total_len <= hdr_len)
- return;
-
- memmove(skb->data + (hdr_total_len - hdr_len), skb->data, hdr_len);
- skb_pull(skb, (hdr_total_len - hdr_len));
-}
-
-static void iwm_rx_adjust_packet(struct iwm_priv *iwm,
- struct iwm_rx_packet *packet,
- struct iwm_rx_ticket_node *ticket_node)
-{
- u32 payload_offset = 0, payload_len;
- struct iwm_rx_ticket *ticket = ticket_node->ticket;
- struct iwm_rx_mpdu_hdr *mpdu_hdr;
- struct ieee80211_hdr *hdr;
-
- mpdu_hdr = (struct iwm_rx_mpdu_hdr *)packet->skb->data;
- payload_offset += sizeof(struct iwm_rx_mpdu_hdr);
- /* Padding is 0 or 2 bytes */
- payload_len = le16_to_cpu(mpdu_hdr->len) +
- (le16_to_cpu(ticket->flags) & IWM_RX_TICKET_PAD_SIZE_MSK);
- payload_len -= ticket->tail_len;
-
- IWM_DBG_RX(iwm, DBG, "Packet adjusted, len:%d, offset:%d, "
- "ticket offset:%d ticket tail len:%d\n",
- payload_len, payload_offset, ticket->payload_offset,
- ticket->tail_len);
-
- IWM_HEXDUMP(iwm, DBG, RX, "RAW: ", packet->skb->data, packet->skb->len);
-
- skb_pull(packet->skb, payload_offset);
- skb_trim(packet->skb, payload_len);
-
- iwm_remove_iv(packet->skb, ticket->payload_offset);
-
- hdr = (struct ieee80211_hdr *) packet->skb->data;
- if (ieee80211_is_data_qos(hdr->frame_control)) {
- /* UMAC handed QOS_DATA frame with 2 padding bytes appended
- * to the qos_ctl field in IEEE 802.11 headers. */
- memmove(packet->skb->data + IEEE80211_QOS_CTL_LEN + 2,
- packet->skb->data,
- ieee80211_hdrlen(hdr->frame_control) -
- IEEE80211_QOS_CTL_LEN);
- hdr = (struct ieee80211_hdr *) skb_pull(packet->skb,
- IEEE80211_QOS_CTL_LEN + 2);
- hdr->frame_control &= ~cpu_to_le16(IEEE80211_STYPE_QOS_DATA);
- }
-
- IWM_HEXDUMP(iwm, DBG, RX, "ADJUSTED: ",
- packet->skb->data, packet->skb->len);
-}
-
-static void classify8023(struct sk_buff *skb)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-
- if (ieee80211_is_data_qos(hdr->frame_control)) {
- u8 *qc = ieee80211_get_qos_ctl(hdr);
- /* frame has qos control */
- skb->priority = *qc & IEEE80211_QOS_CTL_TID_MASK;
- } else {
- skb->priority = 0;
- }
-}
-
-static void iwm_rx_process_amsdu(struct iwm_priv *iwm, struct sk_buff *skb)
-{
- struct wireless_dev *wdev = iwm_to_wdev(iwm);
- struct net_device *ndev = iwm_to_ndev(iwm);
- struct sk_buff_head list;
- struct sk_buff *frame;
-
- IWM_HEXDUMP(iwm, DBG, RX, "A-MSDU: ", skb->data, skb->len);
-
- __skb_queue_head_init(&list);
- ieee80211_amsdu_to_8023s(skb, &list, ndev->dev_addr, wdev->iftype, 0,
- true);
-
- while ((frame = __skb_dequeue(&list))) {
- ndev->stats.rx_packets++;
- ndev->stats.rx_bytes += frame->len;
-
- frame->protocol = eth_type_trans(frame, ndev);
- frame->ip_summed = CHECKSUM_NONE;
- memset(frame->cb, 0, sizeof(frame->cb));
-
- if (netif_rx_ni(frame) == NET_RX_DROP) {
- IWM_ERR(iwm, "Packet dropped\n");
- ndev->stats.rx_dropped++;
- }
- }
-}
-
-static void iwm_rx_process_packet(struct iwm_priv *iwm,
- struct iwm_rx_packet *packet,
- struct iwm_rx_ticket_node *ticket_node)
-{
- int ret;
- struct sk_buff *skb = packet->skb;
- struct wireless_dev *wdev = iwm_to_wdev(iwm);
- struct net_device *ndev = iwm_to_ndev(iwm);
-
- IWM_DBG_RX(iwm, DBG, "Processing packet ID %d\n", packet->id);
-
- switch (le16_to_cpu(ticket_node->ticket->action)) {
- case IWM_RX_TICKET_RELEASE:
- IWM_DBG_RX(iwm, DBG, "RELEASE packet\n");
-
- iwm_rx_adjust_packet(iwm, packet, ticket_node);
- skb->dev = iwm_to_ndev(iwm);
- classify8023(skb);
-
- if (le16_to_cpu(ticket_node->ticket->flags) &
- IWM_RX_TICKET_AMSDU_MSK) {
- iwm_rx_process_amsdu(iwm, skb);
- break;
- }
-
- ret = ieee80211_data_to_8023(skb, ndev->dev_addr, wdev->iftype);
- if (ret < 0) {
- IWM_DBG_RX(iwm, DBG, "Couldn't convert 802.11 header - "
- "%d\n", ret);
- kfree_skb(packet->skb);
- break;
- }
-
- IWM_HEXDUMP(iwm, DBG, RX, "802.3: ", skb->data, skb->len);
-
- ndev->stats.rx_packets++;
- ndev->stats.rx_bytes += skb->len;
-
- skb->protocol = eth_type_trans(skb, ndev);
- skb->ip_summed = CHECKSUM_NONE;
- memset(skb->cb, 0, sizeof(skb->cb));
-
- if (netif_rx_ni(skb) == NET_RX_DROP) {
- IWM_ERR(iwm, "Packet dropped\n");
- ndev->stats.rx_dropped++;
- }
- break;
- case IWM_RX_TICKET_DROP:
- IWM_DBG_RX(iwm, DBG, "DROP packet: 0x%x\n",
- le16_to_cpu(ticket_node->ticket->flags));
- kfree_skb(packet->skb);
- break;
- default:
- IWM_ERR(iwm, "Unknown ticket action: %d\n",
- le16_to_cpu(ticket_node->ticket->action));
- kfree_skb(packet->skb);
- }
-
- kfree(packet);
- iwm_rx_ticket_node_free(ticket_node);
-}
-
-/*
- * Rx data processing:
- *
- * We're receiving Rx packet from the LMAC, and Rx ticket from
- * the UMAC.
- * To forward a target data packet upstream (i.e. to the
- * kernel network stack), we must have received an Rx ticket
- * that tells us we're allowed to release this packet (ticket
- * action is IWM_RX_TICKET_RELEASE). The Rx ticket also indicates,
- * among other things, where valid data actually starts in the Rx
- * packet.
- */
-void iwm_rx_worker(struct work_struct *work)
-{
- struct iwm_priv *iwm;
- struct iwm_rx_ticket_node *ticket, *next;
-
- iwm = container_of(work, struct iwm_priv, rx_worker);
-
- /*
- * We go through the tickets list and if there is a pending
- * packet for it, we push it upstream.
- * We stop whenever a ticket is missing its packet, as we're
- * supposed to send the packets in order.
- */
- spin_lock(&iwm->ticket_lock);
- list_for_each_entry_safe(ticket, next, &iwm->rx_tickets, node) {
- struct iwm_rx_packet *packet =
- iwm_rx_packet_get(iwm, le16_to_cpu(ticket->ticket->id));
-
- if (!packet) {
- IWM_DBG_RX(iwm, DBG, "Skip rx_work: Wait for ticket %d "
- "to be handled first\n",
- le16_to_cpu(ticket->ticket->id));
- break;
- }
-
- list_del(&ticket->node);
- iwm_rx_process_packet(iwm, packet, ticket);
- }
- spin_unlock(&iwm->ticket_lock);
-}
-
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