From: Arik Nemtsov <arik@xxxxxxxxxx> The same bits are employed in all transport layers. Put the status field in the common transport layer. This allows us to employ them in common transport code. Signed-off-by: Arik Nemtsov <arik@xxxxxxxxxx> Reviewed-by: Johannes Berg <johannes.berg@xxxxxxxxx> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx> --- drivers/net/wireless/iwlwifi/iwl-trans.h | 20 +++++++++++++ drivers/net/wireless/iwlwifi/pcie/internal.h | 29 ++----------------- drivers/net/wireless/iwlwifi/pcie/rx.c | 27 ++++++++--------- drivers/net/wireless/iwlwifi/pcie/trans.c | 40 +++++++++++--------------- drivers/net/wireless/iwlwifi/pcie/tx.c | 30 +++++++++---------- 5 files changed, 65 insertions(+), 81 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h index 43ea124..6419603 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans.h +++ b/drivers/net/wireless/iwlwifi/iwl-trans.h @@ -317,6 +317,24 @@ enum iwl_d3_status { }; /** + * enum iwl_trans_status: transport status flags + * @STATUS_SYNC_HCMD_ACTIVE: a SYNC command is being processed + * @STATUS_DEVICE_ENABLED: APM is enabled + * @STATUS_TPOWER_PMI: the device might be asleep (need to wake it up) + * @STATUS_INT_ENABLED: interrupts are enabled + * @STATUS_RFKILL: the HW RFkill switch is in KILL position + * @STATUS_FW_ERROR: the fw is in error state + */ +enum iwl_trans_status { + STATUS_SYNC_HCMD_ACTIVE, + STATUS_DEVICE_ENABLED, + STATUS_TPOWER_PMI, + STATUS_INT_ENABLED, + STATUS_RFKILL, + STATUS_FW_ERROR, +}; + +/** * struct iwl_trans_config - transport configuration * * @op_mode: pointer to the upper layer. @@ -479,6 +497,7 @@ enum iwl_trans_state { * @ops - pointer to iwl_trans_ops * @op_mode - pointer to the op_mode * @cfg - pointer to the configuration + * @status: a bit-mask of transport status flags * @dev - pointer to struct device * that represents the device * @hw_id: a u32 with the ID of the device / subdevice. * Set during transport allocation. @@ -499,6 +518,7 @@ struct iwl_trans { struct iwl_op_mode *op_mode; const struct iwl_cfg *cfg; enum iwl_trans_state state; + unsigned long status; struct device *dev; u32 hw_rev; diff --git a/drivers/net/wireless/iwlwifi/pcie/internal.h b/drivers/net/wireless/iwlwifi/pcie/internal.h index 051268c..8a2de33 100644 --- a/drivers/net/wireless/iwlwifi/pcie/internal.h +++ b/drivers/net/wireless/iwlwifi/pcie/internal.h @@ -256,7 +256,6 @@ iwl_pcie_get_scratchbuf_dma(struct iwl_txq *txq, int idx) * @hw_base: pci hardware address support * @ucode_write_complete: indicates that the ucode has been copied. * @ucode_write_waitq: wait queue for uCode load - * @status - transport specific status flags * @cmd_queue - command queue number * @rx_buf_size_8k: 8 kB RX buffer size * @bc_table_dword: true if the BC table expects DWORD (as opposed to bytes) @@ -296,7 +295,6 @@ struct iwl_trans_pcie { wait_queue_head_t ucode_write_waitq; wait_queue_head_t wait_command_queue; - unsigned long status; u8 cmd_queue; u8 cmd_fifo; u8 n_no_reclaim_cmds; @@ -315,24 +313,6 @@ struct iwl_trans_pcie { spinlock_t reg_lock; }; -/** - * enum iwl_pcie_status: status of the PCIe transport - * @STATUS_HCMD_ACTIVE: a SYNC command is being processed - * @STATUS_DEVICE_ENABLED: APM is enabled - * @STATUS_TPOWER_PMI: the device might be asleep (need to wake it up) - * @STATUS_INT_ENABLED: interrupts are enabled - * @STATUS_RFKILL: the HW RFkill switch is in KILL position - * @STATUS_FW_ERROR: the fw is in error state - */ -enum iwl_pcie_status { - STATUS_HCMD_ACTIVE, - STATUS_DEVICE_ENABLED, - STATUS_TPOWER_PMI, - STATUS_INT_ENABLED, - STATUS_RFKILL, - STATUS_FW_ERROR, -}; - #define IWL_TRANS_GET_PCIE_TRANS(_iwl_trans) \ ((struct iwl_trans_pcie *) ((_iwl_trans)->trans_specific)) @@ -399,8 +379,7 @@ void iwl_pcie_dump_csr(struct iwl_trans *trans); ******************************************************/ static inline void iwl_disable_interrupts(struct iwl_trans *trans) { - struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); - clear_bit(STATUS_INT_ENABLED, &trans_pcie->status); + clear_bit(STATUS_INT_ENABLED, &trans->status); /* disable interrupts from uCode/NIC to host */ iwl_write32(trans, CSR_INT_MASK, 0x00000000); @@ -417,7 +396,7 @@ static inline void iwl_enable_interrupts(struct iwl_trans *trans) struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); IWL_DEBUG_ISR(trans, "Enabling interrupts\n"); - set_bit(STATUS_INT_ENABLED, &trans_pcie->status); + set_bit(STATUS_INT_ENABLED, &trans->status); iwl_write32(trans, CSR_INT_MASK, trans_pcie->inta_mask); } @@ -479,9 +458,7 @@ static inline bool iwl_is_rfkill_set(struct iwl_trans *trans) static inline void iwl_nic_error(struct iwl_trans *trans) { - struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); - - set_bit(STATUS_FW_ERROR, &trans_pcie->status); + set_bit(STATUS_FW_ERROR, &trans->status); iwl_op_mode_nic_error(trans->op_mode); } diff --git a/drivers/net/wireless/iwlwifi/pcie/rx.c b/drivers/net/wireless/iwlwifi/pcie/rx.c index 1d6bf7b..bbbb3ca 100644 --- a/drivers/net/wireless/iwlwifi/pcie/rx.c +++ b/drivers/net/wireless/iwlwifi/pcie/rx.c @@ -162,11 +162,8 @@ static void iwl_pcie_rxq_inc_wr_ptr(struct iwl_trans *trans, rxq->write_actual = (rxq->write & ~0x7); iwl_write32(trans, FH_RSCSR_CHNL0_WPTR, rxq->write_actual); } else { - struct iwl_trans_pcie *trans_pcie = - IWL_TRANS_GET_PCIE_TRANS(trans); - /* If power-saving is in use, make sure device is awake */ - if (test_bit(STATUS_TPOWER_PMI, &trans_pcie->status)) { + if (test_bit(STATUS_TPOWER_PMI, &trans->status)) { reg = iwl_read32(trans, CSR_UCODE_DRV_GP1); if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { @@ -222,7 +219,7 @@ static void iwl_pcie_rxq_restock(struct iwl_trans *trans) * stopped, we cannot access the HW (in particular not prph). * So don't try to restock if the APM has been already stopped. */ - if (!test_bit(STATUS_DEVICE_ENABLED, &trans_pcie->status)) + if (!test_bit(STATUS_DEVICE_ENABLED, &trans->status)) return; spin_lock_irqsave(&rxq->lock, flags); @@ -791,7 +788,7 @@ static void iwl_pcie_irq_handle_error(struct iwl_trans *trans) APMS_CLK_VAL_MRB_FUNC_MODE) || (iwl_read_prph(trans, APMG_PS_CTRL_REG) & APMG_PS_CTRL_VAL_RESET_REQ))) { - clear_bit(STATUS_HCMD_ACTIVE, &trans_pcie->status); + clear_bit(STATUS_SYNC_HCMD_ACTIVE, &trans->status); iwl_op_mode_wimax_active(trans->op_mode); wake_up(&trans_pcie->wait_command_queue); return; @@ -801,8 +798,8 @@ static void iwl_pcie_irq_handle_error(struct iwl_trans *trans) iwl_dump_fh(trans, NULL); /* set the ERROR bit before we wake up the caller */ - set_bit(STATUS_FW_ERROR, &trans_pcie->status); - clear_bit(STATUS_HCMD_ACTIVE, &trans_pcie->status); + set_bit(STATUS_FW_ERROR, &trans->status); + clear_bit(STATUS_SYNC_HCMD_ACTIVE, &trans->status); wake_up(&trans_pcie->wait_command_queue); local_bh_disable(); @@ -894,14 +891,14 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id) iwl_op_mode_hw_rf_kill(trans->op_mode, hw_rfkill); if (hw_rfkill) { - set_bit(STATUS_RFKILL, &trans_pcie->status); - if (test_and_clear_bit(STATUS_HCMD_ACTIVE, - &trans_pcie->status)) + set_bit(STATUS_RFKILL, &trans->status); + if (test_and_clear_bit(STATUS_SYNC_HCMD_ACTIVE, + &trans->status)) IWL_DEBUG_RF_KILL(trans, "Rfkill while SYNC HCMD in flight\n"); wake_up(&trans_pcie->wait_command_queue); } else { - clear_bit(STATUS_RFKILL, &trans_pcie->status); + clear_bit(STATUS_RFKILL, &trans->status); } handled |= CSR_INT_BIT_RF_KILL; @@ -1005,7 +1002,7 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id) /* Re-enable all interrupts */ /* only Re-enable if disabled by irq */ - if (test_bit(STATUS_INT_ENABLED, &trans_pcie->status)) + if (test_bit(STATUS_INT_ENABLED, &trans->status)) iwl_enable_interrupts(trans); /* Re-enable RF_KILL if it occurred */ else if (handled & CSR_INT_BIT_RF_KILL) @@ -1160,7 +1157,7 @@ static irqreturn_t iwl_pcie_isr(int irq, void *data) * the handler can be scheduled because of a previous * interrupt. */ - if (test_bit(STATUS_INT_ENABLED, &trans_pcie->status) && + if (test_bit(STATUS_INT_ENABLED, &trans->status) && !trans_pcie->inta) iwl_enable_interrupts(trans); return IRQ_NONE; @@ -1290,7 +1287,7 @@ irqreturn_t iwl_pcie_isr_ict(int irq, void *data) /* re-enable interrupts here since we don't have anything to service. * only Re-enable if disabled by irq. */ - if (test_bit(STATUS_INT_ENABLED, &trans_pcie->status) && + if (test_bit(STATUS_INT_ENABLED, &trans->status) && !trans_pcie->inta) iwl_enable_interrupts(trans); diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c index 43eed4d..28c62a5 100644 --- a/drivers/net/wireless/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/iwlwifi/pcie/trans.c @@ -150,7 +150,6 @@ static void iwl_pcie_apm_config(struct iwl_trans *trans) */ static int iwl_pcie_apm_init(struct iwl_trans *trans) { - struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); int ret = 0; IWL_DEBUG_INFO(trans, "Init card's basic functions\n"); @@ -223,7 +222,7 @@ static int iwl_pcie_apm_init(struct iwl_trans *trans) /* Clear the interrupt in APMG if the NIC is in RFKILL */ iwl_write_prph(trans, APMG_RTC_INT_STT_REG, APMG_RTC_INT_STT_RFKILL); - set_bit(STATUS_DEVICE_ENABLED, &trans_pcie->status); + set_bit(STATUS_DEVICE_ENABLED, &trans->status); out: return ret; @@ -249,10 +248,9 @@ static int iwl_pcie_apm_stop_master(struct iwl_trans *trans) static void iwl_pcie_apm_stop(struct iwl_trans *trans) { - struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); IWL_DEBUG_INFO(trans, "Stop card, put in low power state\n"); - clear_bit(STATUS_DEVICE_ENABLED, &trans_pcie->status); + clear_bit(STATUS_DEVICE_ENABLED, &trans->status); /* Stop device's DMA activity */ iwl_pcie_apm_stop_master(trans); @@ -582,7 +580,6 @@ static int iwl_pcie_load_given_ucode(struct iwl_trans *trans, static int iwl_trans_pcie_start_fw(struct iwl_trans *trans, const struct fw_img *fw, bool run_in_rfkill) { - struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); int ret; bool hw_rfkill; @@ -592,16 +589,16 @@ static int iwl_trans_pcie_start_fw(struct iwl_trans *trans, return -EIO; } - clear_bit(STATUS_FW_ERROR, &trans_pcie->status); + clear_bit(STATUS_FW_ERROR, &trans->status); iwl_enable_rfkill_int(trans); /* If platform's RF_KILL switch is NOT set to KILL */ hw_rfkill = iwl_is_rfkill_set(trans); if (hw_rfkill) - set_bit(STATUS_RFKILL, &trans_pcie->status); + set_bit(STATUS_RFKILL, &trans->status); else - clear_bit(STATUS_RFKILL, &trans_pcie->status); + clear_bit(STATUS_RFKILL, &trans->status); iwl_op_mode_hw_rf_kill(trans->op_mode, hw_rfkill); if (hw_rfkill && !run_in_rfkill) return -ERFKILL; @@ -658,7 +655,7 @@ static void iwl_trans_pcie_stop_device(struct iwl_trans *trans) * restart. So don't process again if the device is * already dead. */ - if (test_bit(STATUS_DEVICE_ENABLED, &trans_pcie->status)) { + if (test_bit(STATUS_DEVICE_ENABLED, &trans->status)) { iwl_pcie_tx_stop(trans); iwl_pcie_rx_stop(trans); @@ -686,11 +683,11 @@ static void iwl_trans_pcie_stop_device(struct iwl_trans *trans) iwl_write32(trans, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); /* clear all status bits */ - clear_bit(STATUS_HCMD_ACTIVE, &trans_pcie->status); - clear_bit(STATUS_INT_ENABLED, &trans_pcie->status); - clear_bit(STATUS_DEVICE_ENABLED, &trans_pcie->status); - clear_bit(STATUS_TPOWER_PMI, &trans_pcie->status); - clear_bit(STATUS_RFKILL, &trans_pcie->status); + clear_bit(STATUS_SYNC_HCMD_ACTIVE, &trans->status); + clear_bit(STATUS_INT_ENABLED, &trans->status); + clear_bit(STATUS_DEVICE_ENABLED, &trans->status); + clear_bit(STATUS_TPOWER_PMI, &trans->status); + clear_bit(STATUS_RFKILL, &trans->status); /* * Even if we stop the HW, we still want the RF kill @@ -706,9 +703,9 @@ static void iwl_trans_pcie_stop_device(struct iwl_trans *trans) */ hw_rfkill = iwl_is_rfkill_set(trans); if (hw_rfkill) - set_bit(STATUS_RFKILL, &trans_pcie->status); + set_bit(STATUS_RFKILL, &trans->status); else - clear_bit(STATUS_RFKILL, &trans_pcie->status); + clear_bit(STATUS_RFKILL, &trans->status); iwl_op_mode_hw_rf_kill(trans->op_mode, hw_rfkill); } @@ -794,7 +791,6 @@ static int iwl_trans_pcie_d3_resume(struct iwl_trans *trans, static int iwl_trans_pcie_start_hw(struct iwl_trans *trans) { - struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); bool hw_rfkill; int err; @@ -816,9 +812,9 @@ static int iwl_trans_pcie_start_hw(struct iwl_trans *trans) hw_rfkill = iwl_is_rfkill_set(trans); if (hw_rfkill) - set_bit(STATUS_RFKILL, &trans_pcie->status); + set_bit(STATUS_RFKILL, &trans->status); else - clear_bit(STATUS_RFKILL, &trans_pcie->status); + clear_bit(STATUS_RFKILL, &trans->status); iwl_op_mode_hw_rf_kill(trans->op_mode, hw_rfkill); return 0; @@ -924,12 +920,10 @@ void iwl_trans_pcie_free(struct iwl_trans *trans) static void iwl_trans_pcie_set_pmi(struct iwl_trans *trans, bool state) { - struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); - if (state) - set_bit(STATUS_TPOWER_PMI, &trans_pcie->status); + set_bit(STATUS_TPOWER_PMI, &trans->status); else - clear_bit(STATUS_TPOWER_PMI, &trans_pcie->status); + clear_bit(STATUS_TPOWER_PMI, &trans->status); } static bool iwl_trans_pcie_grab_nic_access(struct iwl_trans *trans, bool silent, diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c index a4ef5cc..a36884e 100644 --- a/drivers/net/wireless/iwlwifi/pcie/tx.c +++ b/drivers/net/wireless/iwlwifi/pcie/tx.c @@ -300,10 +300,8 @@ void iwl_pcie_txq_inc_wr_ptr(struct iwl_trans *trans, struct iwl_txq *txq) iwl_write32(trans, HBUS_TARG_WRPTR, txq->q.write_ptr | (txq_id << 8)); } else { - struct iwl_trans_pcie *trans_pcie = - IWL_TRANS_GET_PCIE_TRANS(trans); /* if we're trying to save power */ - if (test_bit(STATUS_TPOWER_PMI, &trans_pcie->status)) { + if (test_bit(STATUS_TPOWER_PMI, &trans->status)) { /* wake up nic if it's powered down ... * uCode will wake up, and interrupt us again, so next * time we'll skip this part. */ @@ -1449,12 +1447,12 @@ void iwl_pcie_hcmd_complete(struct iwl_trans *trans, iwl_pcie_cmdq_reclaim(trans, txq_id, index); if (!(meta->flags & CMD_ASYNC)) { - if (!test_bit(STATUS_HCMD_ACTIVE, &trans_pcie->status)) { + if (!test_bit(STATUS_SYNC_HCMD_ACTIVE, &trans->status)) { IWL_WARN(trans, "HCMD_ACTIVE already clear for command %s\n", get_cmd_string(trans_pcie, cmd->hdr.cmd)); } - clear_bit(STATUS_HCMD_ACTIVE, &trans_pcie->status); + clear_bit(STATUS_SYNC_HCMD_ACTIVE, &trans->status); IWL_DEBUG_INFO(trans, "Clearing HCMD_ACTIVE for command %s\n", get_cmd_string(trans_pcie, cmd->hdr.cmd)); wake_up(&trans_pcie->wait_command_queue); @@ -1499,8 +1497,8 @@ static int iwl_pcie_send_hcmd_sync(struct iwl_trans *trans, IWL_DEBUG_INFO(trans, "Attempting to send sync command %s\n", get_cmd_string(trans_pcie, cmd->id)); - if (WARN(test_and_set_bit(STATUS_HCMD_ACTIVE, - &trans_pcie->status), + if (WARN(test_and_set_bit(STATUS_SYNC_HCMD_ACTIVE, + &trans->status), "Command %s: a command is already active!\n", get_cmd_string(trans_pcie, cmd->id))) return -EIO; @@ -1511,7 +1509,7 @@ static int iwl_pcie_send_hcmd_sync(struct iwl_trans *trans, cmd_idx = iwl_pcie_enqueue_hcmd(trans, cmd); if (cmd_idx < 0) { ret = cmd_idx; - clear_bit(STATUS_HCMD_ACTIVE, &trans_pcie->status); + clear_bit(STATUS_SYNC_HCMD_ACTIVE, &trans->status); IWL_ERR(trans, "Error sending %s: enqueue_hcmd failed: %d\n", get_cmd_string(trans_pcie, cmd->id), ret); @@ -1523,8 +1521,8 @@ static int iwl_pcie_send_hcmd_sync(struct iwl_trans *trans, timeout -= COMMAND_POKE_TIMEOUT; ret = wait_event_timeout(trans_pcie->wait_command_queue, - !test_bit(STATUS_HCMD_ACTIVE, - &trans_pcie->status), + !test_bit(STATUS_SYNC_HCMD_ACTIVE, + &trans->status), COMMAND_POKE_TIMEOUT); if (ret) break; @@ -1552,7 +1550,7 @@ static int iwl_pcie_send_hcmd_sync(struct iwl_trans *trans, IWL_ERR(trans, "Current CMD queue read_ptr %d write_ptr %d\n", q->read_ptr, q->write_ptr); - clear_bit(STATUS_HCMD_ACTIVE, &trans_pcie->status); + clear_bit(STATUS_SYNC_HCMD_ACTIVE, &trans->status); IWL_DEBUG_INFO(trans, "Clearing HCMD_ACTIVE for command %s\n", get_cmd_string(trans_pcie, cmd->id)); ret = -ETIMEDOUT; @@ -1562,7 +1560,7 @@ static int iwl_pcie_send_hcmd_sync(struct iwl_trans *trans, goto cancel; } - if (test_bit(STATUS_FW_ERROR, &trans_pcie->status)) { + if (test_bit(STATUS_FW_ERROR, &trans->status)) { IWL_ERR(trans, "FW error in SYNC CMD %s\n", get_cmd_string(trans_pcie, cmd->id)); dump_stack(); @@ -1571,7 +1569,7 @@ static int iwl_pcie_send_hcmd_sync(struct iwl_trans *trans, } if (!(cmd->flags & CMD_SEND_IN_RFKILL) && - test_bit(STATUS_RFKILL, &trans_pcie->status)) { + test_bit(STATUS_RFKILL, &trans->status)) { IWL_DEBUG_RF_KILL(trans, "RFKILL in SYNC CMD... no rsp\n"); ret = -ERFKILL; goto cancel; @@ -1608,13 +1606,11 @@ cancel: int iwl_trans_pcie_send_hcmd(struct iwl_trans *trans, struct iwl_host_cmd *cmd) { - struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); - - if (test_bit(STATUS_FW_ERROR, &trans_pcie->status)) + if (test_bit(STATUS_FW_ERROR, &trans->status)) return -EIO; if (!(cmd->flags & CMD_SEND_IN_RFKILL) && - test_bit(STATUS_RFKILL, &trans_pcie->status)) { + test_bit(STATUS_RFKILL, &trans->status)) { IWL_DEBUG_RF_KILL(trans, "Dropping CMD 0x%x: RF KILL\n", cmd->id); return -ERFKILL; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html