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authorMatti Gottlieb2013-07-04 14:47:30 +0300
committerJohannes Berg2013-07-16 13:15:03 +0300
commit0c393d4eac31912ad6ea362d4f9bf78aa1fe9a69 (patch)
tree420c70be14c87d5c47d7e35f66b968fb491d7536 /drivers
parent961de6a5ee568881321cf97e826cc37e6f9bcf84 (diff)
iwlwifi: mvm: sram hex dump on NIC error
Add sram dump on NIC error for debug improvement. Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/mvm.h1
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/ops.c2
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/utils.c23
3 files changed, 26 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index d40d7db185d6..3aaecbcdc551 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -524,6 +524,7 @@ int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags,
enum ieee80211_band band);
u8 iwl_mvm_mac80211_idx_to_hwrate(int rate_idx);
void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm);
+void iwl_mvm_dump_sram(struct iwl_mvm *mvm);
u8 first_antenna(u8 mask);
u8 iwl_mvm_next_antenna(struct iwl_mvm *mvm, u8 valid, u8 last_idx);
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index af79a14063a9..0a4eb278f789 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -678,6 +678,8 @@ static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode)
struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
iwl_mvm_dump_nic_error_log(mvm);
+ if (!iwlwifi_mod_params.restart_fw)
+ iwl_mvm_dump_sram(mvm);
iwl_mvm_nic_restart(mvm);
}
diff --git a/drivers/net/wireless/iwlwifi/mvm/utils.c b/drivers/net/wireless/iwlwifi/mvm/utils.c
index 1e1332839e4a..a9c357491434 100644
--- a/drivers/net/wireless/iwlwifi/mvm/utils.c
+++ b/drivers/net/wireless/iwlwifi/mvm/utils.c
@@ -453,6 +453,29 @@ void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm)
IWL_ERR(mvm, "0x%08X | flow_handler\n", table.flow_handler);
}
+void iwl_mvm_dump_sram(struct iwl_mvm *mvm)
+{
+ const struct fw_img *img;
+ int ofs, len = 0;
+ u8 *buf;
+
+ if (!mvm->ucode_loaded)
+ return;
+
+ img = &mvm->fw->img[mvm->cur_ucode];
+ ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
+ len = img->sec[IWL_UCODE_SECTION_DATA].len;
+
+ buf = kzalloc(len, GFP_KERNEL);
+ if (!buf)
+ return;
+
+ iwl_trans_read_mem_bytes(mvm->trans, ofs, buf, len);
+ iwl_print_hex_error(mvm->trans, buf, len);
+
+ kfree(buf);
+}
+
/**
* iwl_mvm_send_lq_cmd() - Send link quality command
* @init: This command is sent as part of station initialization right