From d3b4dc014c9ccad665a676ffb55ce7980663a6e0 Mon Sep 17 00:00:00 2001
From: Haim Dreyfuss <haim.dreyfuss@intel.com>
Date: Tue, 23 Jul 2019 18:27:45 +0300
Subject: iwlwifi: mvm: add support for new version for D0I3_END_CMD
During D3 state there are some flows which requires FW reset.
Add new API to support it.
Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
drivers/net/wireless/intel/iwlwifi/mvm/ops.c | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
(limited to 'drivers/net/wireless/intel/iwlwifi/mvm/ops.c')
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index 3acbd5b7ab4b..cc4b5554c715 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -608,6 +608,27 @@ static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = {
.d3_debug_enable = iwl_mvm_d3_debug_enable,
};
+static u8 iwl_mvm_lookup_notif_ver(struct iwl_mvm *mvm, u8 grp, u8 cmd, u8 def)
+{
+ const struct iwl_fw_cmd_version *entry;
+ unsigned int i;
+
+ if (!mvm->fw->ucode_capa.cmd_versions ||
+ !mvm->fw->ucode_capa.n_cmd_versions)
+ return def;
+
+ entry = mvm->fw->ucode_capa.cmd_versions;
+ for (i = 0; i < mvm->fw->ucode_capa.n_cmd_versions; i++, entry++) {
+ if (entry->group == grp && entry->cmd == cmd) {
+ if (entry->notif_ver == IWL_FW_CMD_VER_UNKNOWN)
+ return def;
+ return entry->notif_ver;
+ }
+ }
+
+ return def;
+}
+
static struct iwl_op_mode *
iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
const struct iwl_fw *fw, struct dentry *dbgfs_dir)
@@ -722,6 +743,12 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork);
+ mvm->cmd_ver.d0i3_resp =
+ iwl_mvm_lookup_notif_ver(mvm, LEGACY_GROUP, D0I3_END_CMD, 0);
+ /* we only support version 1 */
+ if (WARN_ON_ONCE(mvm->cmd_ver.d0i3_resp > 1))
+ goto out_free;
+
/*
* Populate the state variables that the transport layer needs
* to know about.
--
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