rtlwifi: rtl8723be: add msi module parameter

The msi module parameter offers an option to enable or disable MSI
interrupts mode, for debugging and workaround(in case) convenience.

Signed-off-by: Adam Lee <adam.lee@canonical.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/net/wireless/rtlwifi/rtl8723be/sw.c b/drivers/net/wireless/rtlwifi/rtl8723be/sw.c
index a07213645da0..ff12bf41644b 100644
--- a/drivers/net/wireless/rtlwifi/rtl8723be/sw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8723be/sw.c
@@ -92,7 +92,7 @@ int rtl8723be_init_sw_vars(struct ieee80211_hw *hw)
         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 
         rtl8723be_bt_reg_init(hw);
-        rtlpci->msi_support = false;
+        rtlpci->msi_support = rtlpriv->cfg->mod_params->msi_support;
         rtlpriv->btcoexist.btc_ops = rtl_btc_get_ops_pointer();
 
         rtlpriv->dm.dm_initialgain_enable = 1;
@@ -253,6 +253,7 @@ static struct rtl_mod_params rtl8723be_mod_params = {
         .inactiveps = true,
         .swctrl_lps = false,
         .fwctrl_lps = true,
+        .msi_support = false,
         .debug = DBG_EMERG,
 };
 
@@ -365,9 +366,11 @@ module_param_named(debug, rtl8723be_mod_params.debug, int, 0444);
 module_param_named(ips, rtl8723be_mod_params.inactiveps, bool, 0444);
 module_param_named(swlps, rtl8723be_mod_params.swctrl_lps, bool, 0444);
 module_param_named(fwlps, rtl8723be_mod_params.fwctrl_lps, bool, 0444);
+module_param_named(msi, rtl8723be_mod_params.msi_support, bool, 0444);
 MODULE_PARM_DESC(swenc, "using hardware crypto (default 0 [hardware])\n");
 MODULE_PARM_DESC(ips, "using no link power save (default 1 is open)\n");
 MODULE_PARM_DESC(fwlps, "using linked fw control power save (default 1 is open)\n");
+MODULE_PARM_DESC(msi, "Set to 1 to use MSI interrupts mode (default 0)\n");
 MODULE_PARM_DESC(debug, "Set debug level (0-5) (default 0)");
 
 static SIMPLE_DEV_PM_OPS(rtlwifi_pm_ops, rtl_pci_suspend, rtl_pci_resume);