mwifiex: cleanup in PCIe flr code path

adapter and card variables don't get freed during PCIe function level
reset. "adapter->ext_scan" variable need not be re-initialized.
fw_name and tx_buf_size initialization is moved to pcie specific code
so that mwifiex_reinit_sw() can be used by SDIO.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

diff --git a/drivers/net/wireless/marvell/mwifiex/main.c b/drivers/net/wireless/marvell/mwifiex/main.c
index 3fc6221..9d80180 100644 (file)
--- a/drivers/net/wireless/marvell/mwifiex/main.c
+++ b/drivers/net/wireless/marvell/mwifiex/main.c
@@ -1425,9 +1425,6 @@ EXPORT_SYMBOL_GPL(mwifiex_shutdown_sw);
 int
 mwifiex_reinit_sw(struct mwifiex_adapter *adapter)
 {
-       char fw_name[32];
-       struct pcie_service_card *card = adapter->card;
-
        mwifiex_init_lock_list(adapter);
        if (adapter->if_ops.up_dev)
                adapter->if_ops.up_dev(adapter);
@@ -1468,18 +1465,12 @@ mwifiex_reinit_sw(struct mwifiex_adapter *adapter)
         * mwifiex_register_dev()
         */
        mwifiex_dbg(adapter, INFO, "%s, mwifiex_init_hw_fw()...\n", __func__);
-       strcpy(fw_name, adapter->fw_name);
-       strcpy(adapter->fw_name, PCIE8997_DEFAULT_WIFIFW_NAME);
 
-       adapter->tx_buf_size = card->pcie.tx_buf_size;
-       adapter->ext_scan = card->pcie.can_ext_scan;
        if (mwifiex_init_hw_fw(adapter, false)) {
-               strcpy(adapter->fw_name, fw_name);
                mwifiex_dbg(adapter, ERROR,
                            "%s: firmware init failed\n", __func__);
                goto err_init_fw;
        }
-       strcpy(adapter->fw_name, fw_name);
        mwifiex_dbg(adapter, INFO, "%s, successful\n", __func__);
 
        complete_all(adapter->fw_done);

diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c
index 02f6db0..66226c6 100644 (file)
--- a/drivers/net/wireless/marvell/mwifiex/pcie.c
+++ b/drivers/net/wireless/marvell/mwifiex/pcie.c
@@ -3082,6 +3082,17 @@ static void mwifiex_pcie_up_dev(struct mwifiex_adapter *adapter)
        struct pci_dev *pdev = card->dev;
        const struct mwifiex_pcie_card_reg *reg = card->pcie.reg;
 
+       /* Bluetooth is not on pcie interface. Download Wifi only firmware
+        * during pcie FLR, so that bluetooth part of firmware which is
+        * already running doesn't get affected.
+        */
+       strcpy(adapter->fw_name, PCIE8997_DEFAULT_WIFIFW_NAME);
+
+       /* tx_buf_size might be changed to 3584 by firmware during
+        * data transfer, we should reset it to default size.
+        */
+       adapter->tx_buf_size = card->pcie.tx_buf_size;
+
        card->cmdrsp_buf = NULL;
        ret = mwifiex_pcie_create_txbd_ring(adapter);
        if (ret) {
@@ -3143,7 +3154,6 @@ static void mwifiex_pcie_down_dev(struct mwifiex_adapter *adapter)
                mwifiex_dbg(adapter, ERROR, "Failed to write driver not-ready signature\n");
 
        adapter->seq_num = 0;
-       adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K;
 
        if (reg->sleep_cookie)
                mwifiex_pcie_delete_sleep_cookie_buf(adapter);