@@ -202,17 +202,3 @@ int iwl_cmd_groups_verify_sorted(const struct iwl_trans_config *trans)
return 0;
}
IWL_EXPORT_SYMBOL(iwl_cmd_groups_verify_sorted);
-
-void iwl_trans_ref(struct iwl_trans *trans)
-{
- if (trans->ops->ref)
- trans->ops->ref(trans);
-}
-IWL_EXPORT_SYMBOL(iwl_trans_ref);
-
-void iwl_trans_unref(struct iwl_trans *trans)
-{
- if (trans->ops->unref)
- trans->ops->unref(trans);
-}
-IWL_EXPORT_SYMBOL(iwl_trans_unref);
@@ -531,11 +531,6 @@ struct iwl_trans_rxq_dma_data {
* @release_nic_access: let the NIC go to sleep. The "flags" parameter
* must be the same one that was sent before to the grab_nic_access.
* @set_bits_mask - set SRAM register according to value and mask.
- * @ref: grab a reference to the transport/FW layers, disallowing
- * certain low power states
- * @unref: release a reference previously taken with @ref. Note that
- * initially the reference count is 1, making an initial @unref
- * necessary to allow low power states.
* @dump_data: return a vmalloc'ed buffer with debug data, maybe containing last
* TX'ed commands and similar. The buffer will be vfree'd by the caller.
* Note that the transport must fill in the proper file headers.
@@ -605,8 +600,6 @@ struct iwl_trans_ops {
unsigned long *flags);
void (*set_bits_mask)(struct iwl_trans *trans, u32 reg, u32 mask,
u32 value);
- void (*ref)(struct iwl_trans *trans);
- void (*unref)(struct iwl_trans *trans);
int (*suspend)(struct iwl_trans *trans);
void (*resume)(struct iwl_trans *trans);
@@ -1254,8 +1247,6 @@ struct iwl_trans *iwl_trans_alloc(unsigned int priv_size,
const struct iwl_cfg *cfg,
const struct iwl_trans_ops *ops);
void iwl_trans_free(struct iwl_trans *trans);
-void iwl_trans_ref(struct iwl_trans *trans);
-void iwl_trans_unref(struct iwl_trans *trans);
/*****************************************************
* driver (transport) register/unregister functions
@@ -2360,37 +2360,6 @@ static void iwl_trans_pcie_set_bits_mask(struct iwl_trans *trans, u32 reg,
spin_unlock_irqrestore(&trans_pcie->reg_lock, flags);
}
-static void iwl_trans_pcie_ref(struct iwl_trans *trans)
-{
- struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-
- if (iwlwifi_mod_params.d0i3_disable)
- return;
-
- pm_runtime_get(&trans_pcie->pci_dev->dev);
-
-#ifdef CONFIG_PM
- IWL_DEBUG_RPM(trans, "runtime usage count: %d\n",
- atomic_read(&trans_pcie->pci_dev->dev.power.usage_count));
-#endif /* CONFIG_PM */
-}
-
-static void iwl_trans_pcie_unref(struct iwl_trans *trans)
-{
- struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-
- if (iwlwifi_mod_params.d0i3_disable)
- return;
-
- pm_runtime_mark_last_busy(&trans_pcie->pci_dev->dev);
- pm_runtime_put_autosuspend(&trans_pcie->pci_dev->dev);
-
-#ifdef CONFIG_PM
- IWL_DEBUG_RPM(trans, "runtime usage count: %d\n",
- atomic_read(&trans_pcie->pci_dev->dev.power.usage_count));
-#endif /* CONFIG_PM */
-}
-
static const char *get_csr_string(int cmd)
{
#define IWL_CMD(x) case x: return #x
@@ -3335,8 +3304,6 @@ static void iwl_trans_pcie_resume(struct iwl_trans *trans)
.grab_nic_access = iwl_trans_pcie_grab_nic_access, \
.release_nic_access = iwl_trans_pcie_release_nic_access, \
.set_bits_mask = iwl_trans_pcie_set_bits_mask, \
- .ref = iwl_trans_pcie_ref, \
- .unref = iwl_trans_pcie_unref, \
.dump_data = iwl_trans_pcie_dump_data, \
.d3_suspend = iwl_trans_pcie_d3_suspend, \
.d3_resume = iwl_trans_pcie_d3_resume, \
@@ -641,12 +641,8 @@ int iwl_trans_pcie_gen2_tx(struct iwl_trans *trans, struct sk_buff *skb,
iwl_pcie_gen2_get_num_tbs(trans, tfd));
/* start timer if queue currently empty */
- if (txq->read_ptr == txq->write_ptr) {
- if (txq->wd_timeout)
- mod_timer(&txq->stuck_timer, jiffies + txq->wd_timeout);
- IWL_DEBUG_RPM(trans, "Q: %d first tx - take ref\n", txq->id);
- iwl_trans_ref(trans);
- }
+ if (txq->read_ptr == txq->write_ptr && txq->wd_timeout)
+ mod_timer(&txq->stuck_timer, jiffies + txq->wd_timeout);
/* Tell device the write index *just past* this latest filled TFD */
txq->write_ptr = iwl_queue_inc_wrap(trans, txq->write_ptr);
@@ -891,12 +887,6 @@ static int iwl_pcie_gen2_enqueue_hcmd(struct iwl_trans *trans,
mod_timer(&txq->stuck_timer, jiffies + txq->wd_timeout);
spin_lock_irqsave(&trans_pcie->reg_lock, flags);
- if (!(cmd->flags & CMD_SEND_IN_IDLE) &&
- !trans_pcie->ref_cmd_in_flight) {
- trans_pcie->ref_cmd_in_flight = true;
- IWL_DEBUG_RPM(trans, "set ref_cmd_in_flight - ref\n");
- iwl_trans_ref(trans);
- }
/* Increment and update queue's write index */
txq->write_ptr = iwl_queue_inc_wrap(trans, txq->write_ptr);
iwl_pcie_gen2_txq_inc_wr_ptr(trans, txq);
@@ -1064,23 +1054,6 @@ void iwl_pcie_gen2_txq_unmap(struct iwl_trans *trans, int txq_id)
}
iwl_pcie_gen2_free_tfd(trans, txq);
txq->read_ptr = iwl_queue_inc_wrap(trans, txq->read_ptr);
-
- if (txq->read_ptr == txq->write_ptr) {
- unsigned long flags;
-
- spin_lock_irqsave(&trans_pcie->reg_lock, flags);
- if (txq_id != trans_pcie->cmd_queue) {
- IWL_DEBUG_RPM(trans, "Q %d - last tx freed\n",
- txq->id);
- iwl_trans_unref(trans);
- } else if (trans_pcie->ref_cmd_in_flight) {
- trans_pcie->ref_cmd_in_flight = false;
- IWL_DEBUG_RPM(trans,
- "clear ref_cmd_in_flight\n");
- iwl_trans_unref(trans);
- }
- spin_unlock_irqrestore(&trans_pcie->reg_lock, flags);
- }
}
while (!skb_queue_empty(&txq->overflow_q)) {
@@ -639,12 +639,6 @@ static void iwl_pcie_clear_cmd_in_flight(struct iwl_trans *trans)
lockdep_assert_held(&trans_pcie->reg_lock);
- if (trans_pcie->ref_cmd_in_flight) {
- trans_pcie->ref_cmd_in_flight = false;
- IWL_DEBUG_RPM(trans, "clear ref_cmd_in_flight - unref\n");
- iwl_trans_unref(trans);
- }
-
if (!trans->cfg->base_params->apmg_wake_up_wa)
return;
if (WARN_ON(!trans_pcie->cmd_hold_nic_awake))
@@ -683,13 +677,8 @@ static void iwl_pcie_txq_unmap(struct iwl_trans *trans, int txq_id)
unsigned long flags;
spin_lock_irqsave(&trans_pcie->reg_lock, flags);
- if (txq_id != trans_pcie->cmd_queue) {
- IWL_DEBUG_RPM(trans, "Q %d - last tx freed\n",
- txq->id);
- iwl_trans_unref(trans);
- } else {
+ if (txq_id == trans_pcie->cmd_queue)
iwl_pcie_clear_cmd_in_flight(trans);
- }
spin_unlock_irqrestore(&trans_pcie->reg_lock, flags);
}
}
@@ -1225,11 +1214,6 @@ void iwl_trans_pcie_reclaim(struct iwl_trans *trans, int txq_id, int ssn,
txq->overflow_tx = false;
}
- if (txq->read_ptr == txq->write_ptr) {
- IWL_DEBUG_RPM(trans, "Q %d - last tx reclaimed\n", txq->id);
- iwl_trans_unref(trans);
- }
-
out:
spin_unlock_bh(&txq->lock);
}
@@ -1261,13 +1245,6 @@ static int iwl_pcie_set_cmd_in_flight(struct iwl_trans *trans,
if (test_bit(STATUS_TRANS_DEAD, &trans->status))
return -ENODEV;
- if (!(cmd->flags & CMD_SEND_IN_IDLE) &&
- !trans_pcie->ref_cmd_in_flight) {
- trans_pcie->ref_cmd_in_flight = true;
- IWL_DEBUG_RPM(trans, "set ref_cmd_in_flight - ref\n");
- iwl_trans_ref(trans);
- }
-
/*
* wake up the NIC to make sure that the firmware will see the host
* command - we will let the NIC sleep once all the host commands
@@ -2518,22 +2495,18 @@ int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb,
wait_write_ptr = ieee80211_has_morefrags(fc);
/* start timer if queue currently empty */
- if (txq->read_ptr == txq->write_ptr) {
- if (txq->wd_timeout) {
- /*
- * If the TXQ is active, then set the timer, if not,
- * set the timer in remainder so that the timer will
- * be armed with the right value when the station will
- * wake up.
- */
- if (!txq->frozen)
- mod_timer(&txq->stuck_timer,
- jiffies + txq->wd_timeout);
- else
- txq->frozen_expiry_remainder = txq->wd_timeout;
- }
- IWL_DEBUG_RPM(trans, "Q: %d first tx - take ref\n", txq->id);
- iwl_trans_ref(trans);
+ if (txq->read_ptr == txq->write_ptr && txq->wd_timeout) {
+ /*
+ * If the TXQ is active, then set the timer, if not,
+ * set the timer in remainder so that the timer will
+ * be armed with the right value when the station will
+ * wake up.
+ */
+ if (!txq->frozen)
+ mod_timer(&txq->stuck_timer,
+ jiffies + txq->wd_timeout);
+ else
+ txq->frozen_expiry_remainder = txq->wd_timeout;
}
/* Tell device the write index *just past* this latest filled TFD */