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-rw-r--r--drivers/net/wireless/iwlwifi/iwl-3945-rs.c1
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-3945.c7
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-4965.c9
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-agn-rs.c56
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-agn.c172
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-calib.c13
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-core.c12
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-core.h5
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-debugfs.c1
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-dev.h2
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-devtrace.c2
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-devtrace.h1
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-eeprom.c1
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-io.h1
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-power.c1
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-rx.c1
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-scan.c50
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-tx.c110
-rw-r--r--drivers/net/wireless/iwlwifi/iwl3945-base.c5
19 files changed, 277 insertions, 173 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
index 47909f94271..902c4d4293e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
@@ -27,6 +27,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/skbuff.h>
+#include <linux/slab.h>
#include <linux/wireless.h>
#include <net/mac80211.h>
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index 303cc8193ad..0728054a22d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -27,6 +27,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
+#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/delay.h>
@@ -184,7 +185,7 @@ static int iwl3945_hwrate_to_plcp_idx(u8 plcp)
{
int idx;
- for (idx = 0; idx < IWL_RATE_COUNT; idx++)
+ for (idx = 0; idx < IWL_RATE_COUNT_3945; idx++)
if (iwl3945_rates[idx].plcp == plcp)
return idx;
return -1;
@@ -805,7 +806,7 @@ void iwl3945_hw_build_tx_cmd_rate(struct iwl_priv *priv,
int sta_id, int tx_id)
{
u16 hw_value = ieee80211_get_tx_rate(priv->hw, info)->hw_value;
- u16 rate_index = min(hw_value & 0xffff, IWL_RATE_COUNT - 1);
+ u16 rate_index = min(hw_value & 0xffff, IWL_RATE_COUNT_3945);
u16 rate_mask;
int rate;
u8 rts_retry_limit;
@@ -2146,7 +2147,7 @@ static void iwl3945_hw_reg_init_channel_groups(struct iwl_priv *priv)
/* fill in channel group's nominal powers for each rate */
for (rate_index = 0;
- rate_index < IWL_RATE_COUNT; rate_index++, clip_pwrs++) {
+ rate_index < IWL_RATE_COUNT_3945; rate_index++, clip_pwrs++) {
switch (rate_index) {
case IWL_RATE_36M_INDEX_TABLE:
if (i == 0) /* B/G */
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index 1bd2cd83602..8972166386c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -2015,7 +2015,9 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
IWL_DEBUG_TX_REPLY(priv, "Retry scheduler reclaim scd_ssn "
"%d index %d\n", scd_ssn , index);
freed = iwl_tx_queue_reclaim(priv, txq_id, index);
- iwl_free_tfds_in_queue(priv, sta_id, tid, freed);
+ if (qc)
+ iwl_free_tfds_in_queue(priv, sta_id,
+ tid, freed);
if (priv->mac80211_registered &&
(iwl_queue_space(&txq->q) > txq->q.low_mark) &&
@@ -2042,13 +2044,14 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
freed = iwl_tx_queue_reclaim(priv, txq_id, index);
if (qc && likely(sta_id != IWL_INVALID_STATION))
- priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
+ iwl_free_tfds_in_queue(priv, sta_id, tid, freed);
+ else if (sta_id == IWL_INVALID_STATION)
+ IWL_DEBUG_TX_REPLY(priv, "Station not known\n");
if (priv->mac80211_registered &&
(iwl_queue_space(&txq->q) > txq->q.low_mark))
iwl_wake_queue(priv, txq_id);
}
-
if (qc && likely(sta_id != IWL_INVALID_STATION))
iwl_txq_check_empty(priv, sta_id, tid, txq_id);
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index 8bf7c20b9d3..1460116d329 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -26,6 +26,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/skbuff.h>
+#include <linux/slab.h>
#include <linux/wireless.h>
#include <net/mac80211.h>
@@ -345,6 +346,17 @@ static inline int get_num_of_ant_from_rate(u32 rate_n_flags)
!!(rate_n_flags & RATE_MCS_ANT_C_MSK);
}
+/*
+ * Static function to get the expected throughput from an iwl_scale_tbl_info
+ * that wraps a NULL pointer check
+ */
+static s32 get_expected_tpt(struct iwl_scale_tbl_info *tbl, int rs_index)
+{
+ if (tbl->expected_tpt)
+ return tbl->expected_tpt[rs_index];
+ return 0;
+}
+
/**
* rs_collect_tx_data - Update the success/failure sliding window
*
@@ -352,19 +364,21 @@ static inline int get_num_of_ant_from_rate(u32 rate_n_flags)
* at this rate. window->data contains the bitmask of successful
* packets.
*/
-static int rs_collect_tx_data(struct iwl_rate_scale_data *windows,
- int scale_index, s32 tpt, int attempts,
- int successes)
+static int rs_collect_tx_data(struct iwl_scale_tbl_info *tbl,
+ int scale_index, int attempts, int successes)
{
struct iwl_rate_scale_data *window = NULL;
static const u64 mask = (((u64)1) << (IWL_RATE_MAX_WINDOW - 1));
- s32 fail_count;
+ s32 fail_count, tpt;
if (scale_index < 0 || scale_index >= IWL_RATE_COUNT)
return -EINVAL;
/* Select window for current tx bit rate */
- window = &(windows[scale_index]);
+ window = &(tbl->win[scale_index]);
+
+ /* Get expected throughput */
+ tpt = get_expected_tpt(tbl, scale_index);
/*
* Keep track of only the latest 62 tx frame attempts in this rate's
@@ -738,16 +752,6 @@ static bool table_type_matches(struct iwl_scale_tbl_info *a,
return (a->lq_type == b->lq_type) && (a->ant_type == b->ant_type) &&
(a->is_SGI == b->is_SGI);
}
-/*
- * Static function to get the expected throughput from an iwl_scale_tbl_info
- * that wraps a NULL pointer check
- */
-static s32 get_expected_tpt(struct iwl_scale_tbl_info *tbl, int rs_index)
-{
- if (tbl->expected_tpt)
- return tbl->expected_tpt[rs_index];
- return 0;
-}
/*
* mac80211 sends us Tx status
@@ -764,12 +768,10 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct iwl_priv *priv = (struct iwl_priv *)priv_r;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- struct iwl_rate_scale_data *window = NULL;
enum mac80211_rate_control_flags mac_flags;
u32 tx_rate;
struct iwl_scale_tbl_info tbl_type;
- struct iwl_scale_tbl_info *curr_tbl, *other_tbl;
- s32 tpt = 0;
+ struct iwl_scale_tbl_info *curr_tbl, *other_tbl, *tmp_tbl;
IWL_DEBUG_RATE_LIMIT(priv, "get frame ack response, update rate scale window\n");
@@ -852,7 +854,6 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
IWL_DEBUG_RATE(priv, "Neither active nor search matches tx rate\n");
return;
}
- window = (struct iwl_rate_scale_data *)&(curr_tbl->win[0]);
/*
* Updating the frame history depends on whether packets were
@@ -865,8 +866,7 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
tx_rate = le32_to_cpu(table->rs_table[0].rate_n_flags);
rs_get_tbl_info_from_mcs(tx_rate, priv->band, &tbl_type,
&rs_index);
- tpt = get_expected_tpt(curr_tbl, rs_index);
- rs_collect_tx_data(window, rs_index, tpt,
+ rs_collect_tx_data(curr_tbl, rs_index,
info->status.ampdu_ack_len,
info->status.ampdu_ack_map);
@@ -896,19 +896,13 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
* table as active/search.
*/
if (table_type_matches(&tbl_type, curr_tbl))
- tpt = get_expected_tpt(curr_tbl, rs_index);
+ tmp_tbl = curr_tbl;
else if (table_type_matches(&tbl_type, other_tbl))
- tpt = get_expected_tpt(other_tbl, rs_index);
+ tmp_tbl = other_tbl;
else
continue;
-
- /* Constants mean 1 transmission, 0 successes */
- if (i < retries)
- rs_collect_tx_data(window, rs_index, tpt, 1,
- 0);
- else
- rs_collect_tx_data(window, rs_index, tpt, 1,
- legacy_success);
+ rs_collect_tx_data(tmp_tbl, rs_index, 1,
+ i < retries ? 0 : legacy_success);
}
/* Update success/fail counts if not searching for new mode */
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 6aeb82b6992..8b8e3e1cbb4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -31,6 +31,7 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/pci.h>
+#include <linux/slab.h>
#include <linux/dma-mapping.h>
#include <linux/delay.h>
#include <linux/sched.h>
@@ -1258,7 +1259,15 @@ static void iwl_irq_tasklet(struct iwl_priv *priv)
/* Ack/clear/reset pending uCode interrupts.
* Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
*/
- iwl_write32(priv, CSR_INT, priv->inta);
+ /* There is a hardware bug in the interrupt mask function that some
+ * interrupts (i.e. CSR_INT_BIT_SCD) can still be generated even if
+ * they are disabled in the CSR_INT_MASK register. Furthermore the
+ * ICT interrupt handling mechanism has another bug that might cause
+ * these unmasked interrupts fail to be detected. We workaround the
+ * hardware bugs here by ACKing all the possible interrupts so that
+ * interrupt coalescing can still be achieved.
+ */
+ iwl_write32(priv, CSR_INT, priv->inta | ~priv->inta_mask);
inta = priv->inta;
@@ -1463,59 +1472,66 @@ static void iwl_nic_start(struct iwl_priv *priv)
}
+static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context);
+static int iwl_mac_setup_register(struct iwl_priv *priv);
+
+static int __must_check iwl_request_firmware(struct iwl_priv *priv, bool first)
+{
+ const char *name_pre = priv->cfg->fw_name_pre;
+
+ if (first)
+ priv->fw_index = priv->cfg->ucode_api_max;
+ else
+ priv->fw_index--;
+
+ if (priv->fw_index < priv->cfg->ucode_api_min) {
+ IWL_ERR(priv, "no suitable firmware found!\n");
+ return -ENOENT;
+ }
+
+ sprintf(priv->firmware_name, "%s%d%s",
+ name_pre, priv->fw_index, ".ucode");
+
+ IWL_DEBUG_INFO(priv, "attempting to load firmware '%s'\n",
+ priv->firmware_name);
+
+ return request_firmware_nowait(THIS_MODULE, 1, priv->firmware_name,
+ &priv->pci_dev->dev, GFP_KERNEL, priv,
+ iwl_ucode_callback);
+}
+
/**
- * iwl_read_ucode - Read uCode images from disk file.
+ * iwl_ucode_callback - callback when firmware was loaded
*
- * Copy into buffers for card to fetch via bus-mastering
+ * If loaded successfully, copies the firmware into buffers
+ * for the card to fetch (via DMA).
*/
-static int iwl_read_ucode(struct iwl_priv *priv)
+static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
{
+ struct iwl_priv *priv = context;
struct iwl_ucode_header *ucode;
- int ret = -EINVAL, index;
- const struct firmware *ucode_raw;
- const char *name_pre = priv->cfg->fw_name_pre;
const unsigned int api_max = priv->cfg->ucode_api_max;
const unsigned int api_min = priv->cfg->ucode_api_min;
- char buf[25];
u8 *src;
size_t len;
u32 api_ver, build;
u32 inst_size, data_size, init_size, init_data_size, boot_size;
+ int err;
u16 eeprom_ver;
- /* Ask kernel firmware_class module to get the boot firmware off disk.
- * request_firmware() is synchronous, file is in memory on return. */
- for (index = api_max; index >= api_min; index--) {
- sprintf(buf, "%s%d%s", name_pre, index, ".ucode");
- ret = request_firmware(&ucode_raw, buf, &priv->pci_dev->dev);
- if (ret < 0) {
- IWL_ERR(priv, "%s firmware file req failed: %d\n",
- buf, ret);
- if (ret == -ENOENT)
- continue;
- else
- goto error;
- } else {
- if (index < api_max)
- IWL_ERR(priv, "Loaded firmware %s, "
- "which is deprecated. "
- "Please use API v%u instead.\n",
- buf, api_max);
-
- IWL_DEBUG_INFO(priv, "Got firmware '%s' file (%zd bytes) from disk\n",
- buf, ucode_raw->size);
- break;
- }
+ if (!ucode_raw) {
+ IWL_ERR(priv, "request for firmware file '%s' failed.\n",
+ priv->firmware_name);
+ goto try_again;
}
- if (ret < 0)
- goto error;
+ IWL_DEBUG_INFO(priv, "Loaded firmware file '%s' (%zd bytes).\n",
+ priv->firmware_name, ucode_raw->size);
/* Make sure that we got at least the v1 header! */
if (ucode_raw->size < priv->cfg->ops->ucode->get_header_size(1)) {
IWL_ERR(priv, "File size way too small!\n");
- ret = -EINVAL;
- goto err_release;
+ goto try_again;
}
/* Data from ucode file: header followed by uCode images */
@@ -1540,10 +1556,9 @@ static int iwl_read_ucode(struct iwl_priv *priv)
IWL_ERR(priv, "Driver unable to support your firmware API. "
"Driver supports v%u, firmware is v%u.\n",
api_max, api_ver);
- priv->ucode_ver = 0;
- ret = -EINVAL;
- goto err_release;
+ goto try_again;
}
+
if (api_ver != api_max)
IWL_ERR(priv, "Firmware has old API version. Expected v%u, "
"got v%u. New firmware can be obtained "
@@ -1585,6 +1600,12 @@ static int iwl_read_ucode(struct iwl_priv *priv)
IWL_DEBUG_INFO(priv, "f/w package hdr boot inst size = %u\n",
boot_size);
+ /*
+ * For any of the failures below (before allocating pci memory)
+ * we will try to load a version with a smaller API -- maybe the
+ * user just got a corrupted version of the latest API.
+ */
+
/* Verify size of file vs. image size info in file's header */
if (ucode_raw->size !=
priv->cfg->ops->ucode->get_header_size(api_ver) +
@@ -1594,41 +1615,35 @@ static int iwl_read_ucode(struct iwl_priv *priv)
IWL_DEBUG_INFO(priv,
"uCode file size %d does not match expected size\n",
(int)ucode_raw->size);
- ret = -EINVAL;
- goto err_release;
+ goto try_again;
}
/* Verify that uCode images will fit in card's SRAM */
if (inst_size > priv->hw_params.max_inst_size) {
IWL_DEBUG_INFO(priv, "uCode instr len %d too large to fit in\n",
inst_size);
- ret = -EINVAL;
- goto err_release;
+ goto try_again;
}
if (data_size > priv->hw_params.max_data_size) {
IWL_DEBUG_INFO(priv, "uCode data len %d too large to fit in\n",
data_size);
- ret = -EINVAL;
- goto err_release;
+ goto try_again;
}
if (init_size > priv->hw_params.max_inst_size) {
IWL_INFO(priv, "uCode init instr len %d too large to fit in\n",
init_size);
- ret = -EINVAL;
- goto err_release;
+ goto try_again;
}
if (init_data_size > priv->hw_params.max_data_size) {
IWL_INFO(priv, "uCode init data len %d too large to fit in\n",
init_data_size);
- ret = -EINVAL;
- goto err_release;
+ goto try_again;
}
if (boot_size > priv->hw_params.max_bsm_size) {
IWL_INFO(priv, "uCode boot instr len %d too large to fit in\n",
boot_size);
- ret = -EINVAL;
- goto err_release;
+ goto try_again;
}
/* Allocate ucode buffers for card's bus-master loading ... */
@@ -1712,20 +1727,36 @@ static int iwl_read_ucode(struct iwl_priv *priv)
IWL_DEBUG_INFO(priv, "Copying (but not loading) boot instr len %Zd\n", len);
memcpy(priv->ucode_boot.v_addr, src, len);
+ /**************************************************
+ * This is still part of probe() in a sense...
+ *
+ * 9. Setup and register with mac80211 and debugfs
+ **************************************************/
+ err = iwl_mac_setup_register(priv);
+ if (err)
+ goto out_unbind;
+
+ err = iwl_dbgfs_register(priv, DRV_NAME);
+ if (err)
+ IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err);
+
/* We have our copies now, allow OS release its copies */
release_firmware(ucode_raw);
- return 0;
+ return;
+
+ try_again:
+ /* try next, if any */
+ if (iwl_request_firmware(priv, false))
+ goto out_unbind;
+ release_firmware(ucode_raw);
+ return;
err_pci_alloc:
IWL_ERR(priv, "failed to allocate pci memory\n");
- ret = -ENOMEM;
iwl_dealloc_ucode_pci(priv);
-
- err_release:
+ out_unbind:
+ device_release_driver(&priv->pci_dev->dev);
release_firmware(ucode_raw);
-
- error:
- return ret;
}
static const char *desc_lookup_text[] = {
@@ -2622,7 +2653,7 @@ static int iwl_mac_setup_register(struct iwl_priv *priv)
BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_ADHOC);
- hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY |
+ hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
WIPHY_FLAG_DISABLE_BEACON_HINTS;
/*
@@ -2631,7 +2662,7 @@ static int iwl_mac_setup_register(struct iwl_priv *priv)
*/
hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
- hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX + 1;
+ hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
/* we create the 802.11 header and a zero-length SSID element */
hw->wiphy->max_scan_ie_len = IWL_MAX_PROBE_REQUEST - 24 - 2;
@@ -2667,21 +2698,7 @@ static int iwl_mac_start(struct ieee80211_hw *hw)
/* we should be verifying the device is ready to be opened */
mutex_lock(&priv->mutex);
-
- /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
- * ucode filename and max sizes are card-specific. */
-
- if (!priv->ucode_code.len) {
- ret = iwl_read_ucode(priv);
- if (ret) {
- IWL_ERR(priv, "Could not read microcode: %d\n", ret);
- mutex_unlock(&priv->mutex);
- return ret;
- }
- }
-
ret = __iwl_up(priv);
-
mutex_unlock(&priv->mutex);
if (ret)
@@ -3654,17 +3671,10 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
iwl_power_initialize(priv);
iwl_tt_initialize(priv);
- /**************************************************
- * 9. Setup and register with mac80211 and debugfs
- **************************************************/
- err = iwl_mac_setup_register(priv);
+ err = iwl_request_firmware(priv, true);
if (err)
goto out_remove_sysfs;
- err = iwl_dbgfs_register(priv, DRV_NAME);
- if (err)
- IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err);
-
return 0;
out_remove_sysfs:
diff --git a/drivers/net/wireless/iwlwifi/iwl-calib.c b/drivers/net/wireless/iwlwifi/iwl-calib.c
index 845831ac053..8b516c5ff0b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-calib.c
+++ b/drivers/net/wireless/iwlwifi/iwl-calib.c
@@ -60,6 +60,7 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
+#include <linux/slab.h>
#include <net/mac80211.h>
#include "iwl-dev.h"
@@ -807,6 +808,18 @@ void iwl_chain_noise_calibration(struct iwl_priv *priv,
}
}
+ /*
+ * The above algorithm sometimes fails when the ucode
+ * reports 0 for all chains. It's not clear why that
+ * happens to start with, but it is then causing trouble
+ * because this can make us enable more chains than the
+ * hardware really has.
+ *
+ * To be safe, simply mask out any chains that we know
+ * are not on the device.
+ */
+ active_chains &= priv->hw_params.valid_rx_ant;
+
num_tx_chains = 0;
for (i = 0; i < NUM_RX_CHAINS; i++) {
/* loops on all the bits of
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 112149e9b31..3352f708663 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -30,6 +30,7 @@
#include <linux/module.h>
#include <linux/etherdevice.h>
#include <linux/sched.h>
+#include <linux/slab.h>
#include <net/mac80211.h>
#include "iwl-eeprom.h"
@@ -307,10 +308,13 @@ int iwl_hw_nic_init(struct iwl_priv *priv)
spin_unlock_irqrestore(&priv->lock, flags);
- /* Allocate and init all Tx and Command queues */
- ret = iwl_txq_ctx_reset(priv);
- if (ret)
- return ret;
+ /* Allocate or reset and init all Tx and Command queues */
+ if (!priv->txq) {
+ ret = iwl_txq_ctx_alloc(priv);
+ if (ret)
+ return ret;
+ } else
+ iwl_txq_ctx_reset(priv);
set_bit(STATUS_INIT, &priv->status);
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 4ef7739f9e8..732590f5fe3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -442,7 +442,8 @@ void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
/*****************************************************
* TX
******************************************************/
-int iwl_txq_ctx_reset(struct iwl_priv *priv);
+int iwl_txq_ctx_alloc(struct iwl_priv *priv);
+void iwl_txq_ctx_reset(struct iwl_priv *priv);
void iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq);
int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
struct iwl_tx_queue *txq,
@@ -456,6 +457,8 @@ void iwl_free_tfds_in_queue(struct iwl_priv *priv,
void iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
int slots_num, u32 txq_id);
+void iwl_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq,
+ int slots_num, u32 txq_id);
void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id);
int iwl_tx_agg_start(struct iwl_priv *priv, const u8 *ra, u16 tid, u16 *ssn);
int iwl_tx_agg_stop(struct iwl_priv *priv , const u8 *ra, u16 tid);
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 7bf44f14679..b6e1b0ebe23 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -26,6 +26,7 @@
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*****************************************************************************/
+#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/debugfs.h>
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index ab891b95804..6054c5fba0c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -1132,6 +1132,7 @@ struct iwl_priv {
u8 rev_id;
/* uCode images, save to reload in case of failure */
+ int fw_index; /* firmware we're trying to load */
u32 ucode_ver; /* version of ucode, copy of
iwl_ucode.ver */
struct fw_desc ucode_code; /* runtime inst */
@@ -1142,6 +1143,7 @@ struct iwl_priv {
struct fw_desc ucode_boot; /* bootstrap inst */
enum ucode_type ucode_type;
u8 ucode_write_complete; /* the image write is complete */
+ char firmware_name[25];
struct iwl_rxon_time_cmd rxon_timing;
diff --git a/drivers/net/wireless/iwlwifi/iwl-devtrace.c b/drivers/net/wireless/iwlwifi/iwl-devtrace.c
index 36580d8d8b8..2ffc2edbf4f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-devtrace.c
+++ b/drivers/net/wireless/iwlwifi/iwl-devtrace.c
@@ -28,6 +28,8 @@
/* sparse doesn't like tracepoint macros */
#ifndef __CHECKER__
+#include "iwl-dev.h"
+
#define CREATE_TRACE_POINTS
#include "iwl-devtrace.h"
diff --git a/drivers/net/wireless/iwlwifi/iwl-devtrace.h b/drivers/net/wireless/iwlwifi/iwl-devtrace.h
index ff4d012ce26..ae7319bb3a9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-devtrace.h
+++ b/drivers/net/wireless/iwlwifi/iwl-devtrace.h
@@ -28,7 +28,6 @@
#define __IWLWIFI_DEVICE_TRACE
#include <linux/tracepoint.h>
-#include "iwl-dev.h"
#if !defined(CONFIG_IWLWIFI_DEVICE_TRACING) || defined(__CHECKER__)
#undef TRACE_EVENT
diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.c b/drivers/net/wireless/iwlwifi/iwl-eeprom.c
index fd37152abae..fb5bb487f3b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-eeprom.c
+++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.c
@@ -63,6 +63,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/init.h>
#include <net/mac80211.h>
diff --git a/drivers/net/wireless/iwlwifi/iwl-io.h b/drivers/net/wireless/iwlwifi/iwl-io.h
index c719baf2585..16eb3ced9b3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-io.h
+++ b/drivers/net/wireless/iwlwifi/iwl-io.h
@@ -31,6 +31,7 @@
#include <linux/io.h>
+#include "iwl-dev.h"
#include "iwl-debug.h"
#include "iwl-devtrace.h"
diff --git a/drivers/net/wireless/iwlwifi/iwl-power.c b/drivers/net/wireless/iwlwifi/iwl-power.c
index 1a1a9f081cc..548dac2f6a9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-power.c
+++ b/drivers/net/wireless/iwlwifi/iwl-power.c
@@ -29,6 +29,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/init.h>
#include <net/mac80211.h>
diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
index df257bc15f4..e5eb339107d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-rx.c
@@ -28,6 +28,7 @@
*****************************************************************************/
#include <linux/etherdevice.h>
+#include <linux/slab.h>
#include <net/mac80211.h>
#include <asm/unaligned.h>
#include "iwl-eeprom.h"
diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c
index dd9ff2ed645..9ab0e412bf1 100644
--- a/drivers/net/wireless/iwlwifi/iwl-scan.c
+++ b/drivers/net/wireless/iwlwifi/iwl-scan.c
@@ -25,6 +25,7 @@
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*****************************************************************************/
+#include <linux/slab.h>
#include <linux/types.h>
#include <linux/etherdevice.h>
#include <net/mac80211.h>
@@ -638,20 +639,9 @@ u16 iwl_fill_probe_req(struct iwl_priv *priv, struct ieee80211_mgmt *frame,
if (left < 0)
return 0;
*pos++ = WLAN_EID_SSID;
- if (!priv->is_internal_short_scan &&
- priv->scan_request->n_ssids) {
- struct cfg80211_ssid *ssid =
- priv->scan_request->ssids;
-
- /* Broadcast if ssid_len is 0 */
- *pos++ = ssid->ssid_len;
- memcpy(pos, ssid->ssid, ssid->ssid_len);
- pos += ssid->ssid_len;
- len += 2 + ssid->ssid_len;
- } else {
- *pos++ = 0;
- len += 2;
- }
+ *pos++ = 0;
+
+ len += 2;
if (WARN_ON(left < ie_len))
return len;
@@ -780,26 +770,20 @@ static void iwl_bg_request_scan(struct work_struct *data)
if (priv->is_internal_short_scan) {
IWL_DEBUG_SCAN(priv, "Start internal passive scan.\n");
} else if (priv->scan_request->n_ssids) {
+ int i, p = 0;
IWL_DEBUG_SCAN(priv, "Kicking off active scan\n");
- /*
- * The first SSID to scan is stuffed into the probe request
- * template and the remaining ones are handled through the
- * direct_scan array.
- */
- if (priv->scan_request->n_ssids > 1) {
- int i, p = 0;
- for (i = 1; i < priv->scan_request->n_ssids; i++) {
- if (!priv->scan_request->ssids[i].ssid_len)
- continue;
- scan->direct_scan[p].id = WLAN_EID_SSID;
- scan->direct_scan[p].len =
- priv->scan_request->ssids[i].ssid_len;
- memcpy(scan->direct_scan[p].ssid,
- priv->scan_request->ssids[i].ssid,
- priv->scan_request->ssids[i].ssid_len);
- n_probes++;
- p++;
- }
+ for (i = 0; i < priv->scan_request->n_ssids; i++) {
+ /* always does wildcard anyway */
+ if (!priv->scan_request->ssids[i].ssid_len)
+ continue;
+ scan->direct_scan[p].id = WLAN_EID_SSID;
+ scan->direct_scan[p].len =
+ priv->scan_request->ssids[i].ssid_len;
+ memcpy(scan->direct_scan[p].ssid,
+ priv->scan_request->ssids[i].ssid,
+ priv->scan_request->ssids[i].ssid_len);
+ n_probes++;
+ p++;
}
is_active = true;
} else
diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index 1ed5206721e..8dd0c036d54 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -29,6 +29,7 @@
#include <linux/etherdevice.h>
#include <linux/sched.h>
+#include <linux/slab.h>
#include <net/mac80211.h>
#include "iwl-eeprom.h"
#include "iwl-dev.h"
@@ -124,7 +125,7 @@ void iwl_free_tfds_in_queue(struct iwl_priv *priv,
if (priv->stations[sta_id].tid[tid].tfds_in_queue >= freed)
priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
else {
- IWL_ERR(priv, "free more than tfds_in_queue (%u:%d)\n",
+ IWL_DEBUG_TX(priv, "free more than tfds_in_queue (%u:%d)\n",
priv->stations[sta_id].tid[tid].tfds_in_queue,
freed);
priv->stations[sta_id].tid[tid].tfds_in_queue = 0;
@@ -193,10 +194,34 @@ void iwl_cmd_queue_free(struct iwl_priv *priv)
struct iwl_queue *q = &txq->q;
struct device *dev = &priv->pci_dev->dev;
int i;
+ bool huge = false;
if (q->n_bd == 0)
return;
+ for (; q->read_ptr != q->write_ptr;
+ q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) {
+ /* we have no way to tell if it is a huge cmd ATM */
+ i = get_cmd_index(q, q->read_ptr, 0);
+
+ if (txq->meta[i].flags & CMD_SIZE_HUGE) {
+ huge = true;
+ continue;
+ }
+
+ pci_unmap_single(priv->pci_dev,
+ pci_unmap_addr(&txq->meta[i], mapping),
+ pci_unmap_len(&txq->meta[i], len),
+ PCI_DMA_BIDIRECTIONAL);
+ }
+ if (huge) {
+ i = q->n_window;
+ pci_unmap_single(priv->pci_dev,
+ pci_unmap_addr(&txq->meta[i], mapping),
+ pci_unmap_len(&txq->meta[i], len),
+ PCI_DMA_BIDIRECTIONAL);
+ }
+
/* De-alloc array of command/tx buffers */
for (i = 0; i <= TFD_CMD_SLOTS; i++)
kfree(txq->cmd[i]);
@@ -409,6 +434,26 @@ out_free_arrays:
}
EXPORT_SYMBOL(iwl_tx_queue_init);
+void iwl_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq,
+ int slots_num, u32 txq_id)
+{
+ int actual_slots = slots_num;
+
+ if (txq_id == IWL_CMD_QUEUE_NUM)
+ actual_slots++;
+
+ memset(txq->meta, 0, sizeof(struct iwl_cmd_meta) * actual_slots);
+
+ txq->need_update = 0;
+
+ /* Initialize queue's high/low-water marks, and head/tail indexes */
+ iwl_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id);
+
+ /* Tell device where to find queue */
+ priv->cfg->ops->lib->txq_init(priv, txq);
+}
+EXPORT_SYMBOL(iwl_tx_queue_reset);
+
/**
* iwl_hw_txq_ctx_free - Free TXQ Context
*
@@ -420,8 +465,7 @@ void iwl_hw_txq_ctx_free(struct iwl_priv *priv)
/* Tx queues */
if (priv->txq) {
- for (txq_id = 0; txq_id < priv->hw_params.max_txq_num;
- txq_id++)
+ for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++)
if (txq_id == IWL_CMD_QUEUE_NUM)
iwl_cmd_queue_free(priv);
else
@@ -437,15 +481,15 @@ void iwl_hw_txq_ctx_free(struct iwl_priv *priv)
EXPORT_SYMBOL(iwl_hw_txq_ctx_free);
/**
- * iwl_txq_ctx_reset - Reset TX queue context
- * Destroys all DMA structures and initialize them again
+ * iwl_txq_ctx_alloc - allocate TX queue context
+ * Allocate all Tx DMA structures and initialize them
*
* @param priv
* @return error code
*/
-int iwl_txq_ctx_reset(struct iwl_priv *priv)
+int iwl_txq_ctx_alloc(struct iwl_priv *priv)
{
- int ret = 0;
+ int ret;
int txq_id, slots_num;
unsigned long flags;
@@ -503,8 +547,31 @@ int iwl_txq_ctx_reset(struct iwl_priv *priv)
return ret;
}
+void iwl_txq_ctx_reset(struct iwl_priv *priv)
+{
+ int txq_id, slots_num;
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ /* Turn off all Tx DMA fifos */
+ priv->cfg->ops->lib->txq_set_sched(priv, 0);
+
+ /* Tell NIC where to find the "keep warm" buffer */
+ iwl_write_direct32(priv, FH_KW_MEM_ADDR_REG, priv->kw.dma >> 4);
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ /* Alloc and init all Tx queues, including the command queue (#4) */
+ for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) {
+ slots_num = txq_id == IWL_CMD_QUEUE_NUM ?
+ TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS;
+ iwl_tx_queue_reset(priv, &priv->txq[txq_id], slots_num, txq_id);
+ }
+}
+
/**
- * iwl_txq_ctx_stop - Stop all Tx DMA channels, free Tx queue memory
+ * iwl_txq_ctx_stop - Stop all Tx DMA channels
*/
void iwl_txq_ctx_stop(struct iwl_priv *priv)
{
@@ -524,9 +591,6 @@ void iwl_txq_ctx_stop(struct iwl_priv *priv)
1000);
}
spin_unlock_irqrestore(&priv->lock, flags);
-
- /* Deallocate memory for all Tx queues */
- iwl_hw_txq_ctx_free(priv);
}
EXPORT_SYMBOL(iwl_txq_ctx_stop);
@@ -1049,6 +1113,14 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
spin_lock_irqsave(&priv->hcmd_lock, flags);
+ /* If this is a huge cmd, mark the huge flag also on the meta.flags
+ * of the _original_ cmd. This is used for DMA mapping clean up.
+ */
+ if (cmd->flags & CMD_SIZE_HUGE) {
+ idx = get_cmd_index(q, q->write_ptr, 0);
+ txq->meta[idx].flags = CMD_SIZE_HUGE;
+ }
+
idx = get_cmd_index(q, q->write_ptr, cmd->flags & CMD_SIZE_HUGE);
out_cmd = txq->cmd[idx];
out_meta = &txq->meta[idx];
@@ -1226,6 +1298,7 @@ void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
bool huge = !!(pkt->hdr.sequence & SEQ_HUGE_FRAME);
struct iwl_device_cmd *cmd;
struct iwl_cmd_meta *meta;
+ struct iwl_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM];
/* If a Tx command is being handled and it isn't in the actual
* command queue then there a command routing bug has been introduced
@@ -1239,9 +1312,17 @@ void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
return;
}
- cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge);
- cmd = priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index];
- meta = &priv->txq[IWL_CMD_QUEUE_NUM].meta[cmd_index];
+ /* If this is a huge cmd, clear the huge flag on the meta.flags
+ * of the _original_ cmd. So that iwl_cmd_queue_free won't unmap
+ * the DMA buffer for the scan (huge) command.
+ */
+ if (huge) {
+ cmd_index = get_cmd_index(&txq->q, index, 0);
+ txq->meta[cmd_index].flags = 0;
+ }
+ cmd_index = get_cmd_index(&txq->q, index, huge);
+ cmd = txq->cmd[cmd_index];
+ meta = &txq->meta[cmd_index];
pci_unmap_single(priv->pci_dev,
pci_unmap_addr(meta, mapping),
@@ -1263,6 +1344,7 @@ void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
get_cmd_string(cmd->hdr.cmd));
wake_up_interruptible(&priv->wait_command_queue);
}
+ meta->flags = 0;
}
EXPORT_SYMBOL(iwl_tx_cmd_complete);
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 54daa38ecba..b55e4f39a9e 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -31,6 +31,7 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/pci.h>
+#include <linux/slab.h>
#include <linux/dma-mapping.h>
#include <linux/delay.h>
#include <linux/sched.h>
@@ -1955,7 +1956,7 @@ static void iwl3945_init_hw_rates(struct iwl_priv *priv,
{
int i;
- for (i = 0; i < IWL_RATE_COUNT; i++) {
+ for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) {
rates[i].bitrate = iwl3945_rates[i].ieee * 5;
rates[i].hw_value = i; /* Rate scaling will work on indexes */
rates[i].hw_value_short = i;
@@ -3921,7 +3922,7 @@ static int iwl3945_setup_mac(struct iwl_priv *priv)
BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_ADHOC);
- hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY |
+ hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
WIPHY_FLAG_DISABLE_BEACON_HINTS;
hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX_3945;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-09-25 01:28:07 +0000