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Commit 70d6babb authored by Eliad Peller's avatar Eliad Peller Committed by Emmanuel Grumbach
Browse files

iwlwifi: mvm: add d0i3_refs debugfs file 



Add d0i3_refs debugfs file that prints the currently taken
mvm D0i3 refs.

Signed-off-by: default avatarEliad Peller <eliadx.peller@intel.com>
Reviewed-by: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
parent 29a90a49

drivers/net/wireless/iwlwifi/mvm/debugfs.c

+30 −0
Original line number Diff line number Diff line
@@ -838,6 +838,34 @@ static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf, 
}

#endif



#define PRINT_MVM_REF(ref) do {					\

	if (test_bit(ref, mvm->ref_bitmap))			\

		pos += scnprintf(buf + pos, bufsz - pos,	\

				 "\t(0x%lx) %s\n",		\

				 BIT(ref), #ref);		\

} while (0)



static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file,

					char __user *user_buf,

					size_t count, loff_t *ppos)

{

	struct iwl_mvm *mvm = file->private_data;

	int pos = 0;

	char buf[256];

	const size_t bufsz = sizeof(buf);



	pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%lx\n",

			 mvm->ref_bitmap[0]);



	PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN);

	PRINT_MVM_REF(IWL_MVM_REF_SCAN);

	PRINT_MVM_REF(IWL_MVM_REF_ROC);

	PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT);

	PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS);



	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);

}



#define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \

	_MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm)

#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
@@ -862,6 +890,7 @@ MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats); 
MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);

MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);

MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);

MVM_DEBUGFS_READ_FILE_OPS(d0i3_refs);



#ifdef CONFIG_IWLWIFI_BCAST_FILTERING

MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
@@ -893,6 +922,7 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir) 
	MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR);

	MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir,

			     S_IWUSR | S_IRUSR);

	MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR);



#ifdef CONFIG_IWLWIFI_BCAST_FILTERING

	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) {