diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/pcie/trans.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/pcie/trans.c | 155 |
1 files changed, 17 insertions, 138 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c index 2fffbbc8462f..285e0d586021 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c @@ -1,64 +1,9 @@ -/****************************************************************************** - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH - * Copyright(c) 2016 - 2017 Intel Deutschland GmbH - * Copyright(c) 2007 - 2015, 2018 - 2020 Intel Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * The full GNU General Public License is included in this distribution - * in the file called COPYING. - * - * Contact Information: - * Intel Linux Wireless <linuxwifi@intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - * BSD LICENSE - * - * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH - * Copyright(c) 2016 - 2017 Intel Deutschland GmbH - * Copyright(c) 2007 - 2015, 2018 - 2020 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 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. - * - *****************************************************************************/ +// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +/* + * Copyright (C) 2007-2015, 2018-2020 Intel Corporation + * Copyright (C) 2013-2015 Intel Mobile Communications GmbH + * Copyright (C) 2016-2017 Intel Deutschland GmbH + */ #include <linux/pci.h> #include <linux/interrupt.h> #include <linux/debugfs.h> @@ -1103,7 +1048,7 @@ static struct iwl_causes_list causes_list[] = { {MSIX_FH_INT_CAUSES_FH_ERR, CSR_MSIX_FH_INT_MASK_AD, 0x5}, {MSIX_HW_INT_CAUSES_REG_ALIVE, CSR_MSIX_HW_INT_MASK_AD, 0x10}, {MSIX_HW_INT_CAUSES_REG_WAKEUP, CSR_MSIX_HW_INT_MASK_AD, 0x11}, - {MSIX_HW_INT_CAUSES_REG_IML, CSR_MSIX_HW_INT_MASK_AD, 0x12}, + {MSIX_HW_INT_CAUSES_REG_RESET_DONE, CSR_MSIX_HW_INT_MASK_AD, 0x12}, {MSIX_HW_INT_CAUSES_REG_CT_KILL, CSR_MSIX_HW_INT_MASK_AD, 0x16}, {MSIX_HW_INT_CAUSES_REG_RF_KILL, CSR_MSIX_HW_INT_MASK_AD, 0x17}, {MSIX_HW_INT_CAUSES_REG_PERIODIC, CSR_MSIX_HW_INT_MASK_AD, 0x18}, @@ -1934,7 +1879,6 @@ static void iwl_trans_pcie_configure(struct iwl_trans *trans, trans->txqs.bc_table_dword = trans_cfg->bc_table_dword; trans_pcie->scd_set_active = trans_cfg->scd_set_active; - trans_pcie->sw_csum_tx = trans_cfg->sw_csum_tx; trans->command_groups = trans_cfg->command_groups; trans->command_groups_size = trans_cfg->command_groups_size; @@ -1946,6 +1890,8 @@ static void iwl_trans_pcie_configure(struct iwl_trans *trans, */ if (trans_pcie->napi_dev.reg_state != NETREG_DUMMY) init_dummy_netdev(&trans_pcie->napi_dev); + + trans_pcie->fw_reset_handshake = trans_cfg->fw_reset_handshake; } void iwl_trans_pcie_free(struct iwl_trans *trans) @@ -2214,59 +2160,6 @@ static int iwl_trans_pcie_read_config32(struct iwl_trans *trans, u32 ofs, ofs, val); } -static void iwl_trans_pcie_freeze_txq_timer(struct iwl_trans *trans, - unsigned long txqs, - bool freeze) -{ - int queue; - - for_each_set_bit(queue, &txqs, BITS_PER_LONG) { - struct iwl_txq *txq = trans->txqs.txq[queue]; - unsigned long now; - - spin_lock_bh(&txq->lock); - - now = jiffies; - - if (txq->frozen == freeze) - goto next_queue; - - IWL_DEBUG_TX_QUEUES(trans, "%s TXQ %d\n", - freeze ? "Freezing" : "Waking", queue); - - txq->frozen = freeze; - - if (txq->read_ptr == txq->write_ptr) - goto next_queue; - - if (freeze) { - if (unlikely(time_after(now, - txq->stuck_timer.expires))) { - /* - * The timer should have fired, maybe it is - * spinning right now on the lock. - */ - goto next_queue; - } - /* remember how long until the timer fires */ - txq->frozen_expiry_remainder = - txq->stuck_timer.expires - now; - del_timer(&txq->stuck_timer); - goto next_queue; - } - - /* - * Wake a non-empty queue -> arm timer with the - * remainder before it froze - */ - mod_timer(&txq->stuck_timer, - now + txq->frozen_expiry_remainder); - -next_queue: - spin_unlock_bh(&txq->lock); - } -} - static void iwl_trans_pcie_block_txq_ptrs(struct iwl_trans *trans, bool block) { int i; @@ -3133,6 +3026,8 @@ iwl_trans_pcie_dump_pointers(struct iwl_trans *trans, fw_mon_data->fw_mon_base_high_ptr = cpu_to_le32(iwl_read_prph(trans, base_high)); write_ptr_val &= DBGC_CUR_DBGBUF_STATUS_OFFSET_MSK; + /* convert wrtPtr to DWs, to align with all HWs */ + write_ptr_val >>= 2; } fw_mon_data->fw_mon_wr_ptr = cpu_to_le32(write_ptr_val); } @@ -3440,7 +3335,7 @@ static const struct iwl_trans_ops trans_ops_pcie = { .send_cmd = iwl_trans_pcie_send_hcmd, .tx = iwl_trans_pcie_tx, - .reclaim = iwl_trans_pcie_reclaim, + .reclaim = iwl_txq_reclaim, .txq_disable = iwl_trans_pcie_txq_disable, .txq_enable = iwl_trans_pcie_txq_enable, @@ -3449,7 +3344,7 @@ static const struct iwl_trans_ops trans_ops_pcie = { .wait_tx_queues_empty = iwl_trans_pcie_wait_txqs_empty, - .freeze_txq_timer = iwl_trans_pcie_freeze_txq_timer, + .freeze_txq_timer = iwl_trans_txq_freeze_timer, .block_txq_ptrs = iwl_trans_pcie_block_txq_ptrs, #ifdef CONFIG_IWLWIFI_DEBUGFS .debugfs_cleanup = iwl_trans_pcie_debugfs_cleanup, @@ -3467,9 +3362,9 @@ static const struct iwl_trans_ops trans_ops_pcie_gen2 = { .send_cmd = iwl_trans_pcie_gen2_send_hcmd, .tx = iwl_txq_gen2_tx, - .reclaim = iwl_trans_pcie_reclaim, + .reclaim = iwl_txq_reclaim, - .set_q_ptrs = iwl_trans_pcie_set_q_ptrs, + .set_q_ptrs = iwl_txq_set_q_ptrs, .txq_alloc = iwl_txq_dyn_alloc, .txq_free = iwl_txq_dyn_free, @@ -3511,6 +3406,7 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev, spin_lock_init(&trans_pcie->alloc_page_lock); mutex_init(&trans_pcie->mutex); init_waitqueue_head(&trans_pcie->ucode_write_waitq); + init_waitqueue_head(&trans_pcie->fw_reset_waitq); trans_pcie->rba.alloc_wq = alloc_workqueue("rb_allocator", WQ_HIGHPRI | WQ_UNBOUND, 1); @@ -3587,26 +3483,10 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev, * "dash" value). To keep hw_rev backwards compatible - we'll store it * in the old format. */ - if (cfg_trans->device_family >= IWL_DEVICE_FAMILY_8000) { + if (cfg_trans->device_family >= IWL_DEVICE_FAMILY_8000) trans->hw_rev = (trans->hw_rev & 0xfff0) | (CSR_HW_REV_STEP(trans->hw_rev << 2) << 2); - ret = iwl_pcie_prepare_card_hw(trans); - if (ret) { - IWL_WARN(trans, "Exit HW not ready\n"); - goto out_no_pci; - } - - /* - * in-order to recognize C step driver should read chip version - * id located at the AUX bus MISC address space. - */ - ret = iwl_finish_nic_init(trans, cfg_trans); - if (ret) - goto out_no_pci; - - } - IWL_DEBUG_INFO(trans, "HW REV: 0x%0x\n", trans->hw_rev); iwl_pcie_set_interrupt_capa(pdev, trans, cfg_trans); @@ -3637,7 +3517,6 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev, IWL_ERR(trans, "Error allocating IRQ %d\n", pdev->irq); goto out_free_ict; } - trans_pcie->inta_mask = CSR_INI_SET_MASK; } #ifdef CONFIG_IWLWIFI_DEBUGFS |