iwlwifi: fw: add support for splitting region type bits

In next region tlv (3) region type is going to be split into bit mask
without affecting the ops for handling region type, so we just mask
the type independent of the version due to all versions having the
same bits usage.
Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211204130722.083e4b47055e.If7483d854e3d07f81236d314b8155cd5996f306c@changeidSigned-off-by: Luca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h

@@ -124,6 +124,9 @@ struct iwl_fw_ini_region_internal_buffer {
  * @hdr: debug header
  * @id: region id. Max id is &IWL_FW_INI_MAX_REGION_ID
  * @type: region type. One of &enum iwl_fw_ini_region_type
+ * @sub_type: region sub type
+ * @sub_type_ver: region sub type
+ * @reserved: not in use
  * @name: region name
  * @dev_addr: device address configuration. Used by
  *	&IWL_FW_INI_REGION_DEVICE_MEMORY, &IWL_FW_INI_REGION_PERIPHERY_MAC,
@@ -146,7 +149,10 @@ struct iwl_fw_ini_region_internal_buffer {
 struct iwl_fw_ini_region_tlv {
 	struct iwl_fw_ini_header hdr;
 	__le32 id;
-	__le32 type;
+	u8 type;
+	u8 sub_type;
+	u8 sub_type_ver;
+	u8 reserved;
 	u8 name[IWL_FW_INI_MAX_NAME];
 	union {
 		struct iwl_fw_ini_region_dev_addr dev_addr;

drivers/net/wireless/intel/iwlwifi/fw/dbg.c

@@ -1988,17 +1988,18 @@ static u32 iwl_dump_ini_mem(struct iwl_fw_runtime *fwrt, struct list_head *list,
 {
 	struct iwl_fw_ini_region_tlv *reg = (void *)reg_data->reg_tlv->data;
 	struct iwl_fw_ini_dump_entry *entry;
-	struct iwl_fw_error_dump_data *tlv;
+	struct iwl_fw_ini_error_dump_data *tlv;
 	struct iwl_fw_ini_error_dump_header *header;
-	u32 type = le32_to_cpu(reg->type), id = le32_to_cpu(reg->id);
+	u32 type = reg->type;
+	u32 id = le32_to_cpu(reg->id);
 	u32 num_of_ranges, i, size;
 	void *range;
 
 	/*
-	 * The higher part of the ID in version 2 is irrelevant for
+	 * The higher part of the ID from 2 is irrelevant for
 	 * us, so mask it out.
 	 */
-	if (le32_to_cpu(reg->hdr.version) == 2)
+	if (le32_to_cpu(reg->hdr.version) >= 2)
 		id &= IWL_FW_INI_REGION_V2_MASK;
 
 	if (!ops->get_num_of_ranges || !ops->get_size || !ops->fill_mem_hdr ||
@@ -2017,6 +2018,9 @@ static u32 iwl_dump_ini_mem(struct iwl_fw_runtime *fwrt, struct list_head *list,
 
 	tlv = (void *)entry->data;
 	tlv->type = reg->type;
+	tlv->sub_type = reg->sub_type;
+	tlv->sub_type_ver = reg->sub_type_ver;
+	tlv->reserved = reg->reserved;
 	tlv->len = cpu_to_le32(size);
 
 	IWL_DEBUG_FW(fwrt, "WRT: Collecting region: id=%d, type=%d\n", id,
@@ -2291,7 +2295,7 @@ static u32 iwl_dump_ini_trigger(struct iwl_fw_runtime *fwrt,
 		}
 
 		reg = (void *)reg_data.reg_tlv->data;
-		reg_type = le32_to_cpu(reg->type);
+		reg_type = reg->type;
 		if (reg_type >= ARRAY_SIZE(iwl_dump_ini_region_ops))
 			continue;
 

drivers/net/wireless/intel/iwlwifi/fw/error-dump.h

@@ -231,6 +231,24 @@ struct iwl_fw_error_dump_mem {
 /* Use bit 31 as dump info type to avoid colliding with region types */
 #define IWL_INI_DUMP_INFO_TYPE BIT(31)
 
+/**
+ * struct iwl_fw_error_dump_data - data for one type
+ * @type: &enum iwl_fw_ini_region_type
+ * @sub_type: sub type id
+ * @sub_type_ver: sub type version
+ * @reserved: not in use
+ * @len: the length starting from %data
+ * @data: the data itself
+ */
+struct iwl_fw_ini_error_dump_data {
+	u8 type;
+	u8 sub_type;
+	u8 sub_type_ver;
+	u8 reserved;
+	__le32 len;
+	__u8 data[];
+} __packed;
+
 /**
  * struct iwl_fw_ini_dump_entry
  * @list: list of dump entries

drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c

@@ -59,7 +59,7 @@ dbg_ver_table[IWL_DBG_TLV_TYPE_NUM] = {
 	[IWL_DBG_TLV_TYPE_DEBUG_INFO]	= {.min_ver = 1, .max_ver = 1,},
 	[IWL_DBG_TLV_TYPE_BUF_ALLOC]	= {.min_ver = 1, .max_ver = 1,},
 	[IWL_DBG_TLV_TYPE_HCMD]		= {.min_ver = 1, .max_ver = 1,},
-	[IWL_DBG_TLV_TYPE_REGION]	= {.min_ver = 1, .max_ver = 2,},
+	[IWL_DBG_TLV_TYPE_REGION]	= {.min_ver = 1, .max_ver = 3,},
 	[IWL_DBG_TLV_TYPE_TRIGGER]	= {.min_ver = 1, .max_ver = 1,},
 	[IWL_DBG_TLV_TYPE_CONF_SET]	= {.min_ver = 1, .max_ver = 1,},
 };
@@ -177,14 +177,14 @@ static int iwl_dbg_tlv_alloc_region(struct iwl_trans *trans,
 	const struct iwl_fw_ini_region_tlv *reg = (const void *)tlv->data;
 	struct iwl_ucode_tlv **active_reg;
 	u32 id = le32_to_cpu(reg->id);
-	u32 type = le32_to_cpu(reg->type);
+	u8 type = reg->type;
 	u32 tlv_len = sizeof(*tlv) + le32_to_cpu(tlv->length);
 
 	/*
-	 * The higher part of the ID in version 2 is irrelevant for
+	 * The higher part of the ID in from version 2 is irrelevant for
 	 * us, so mask it out.
 	 */
-	if (le32_to_cpu(reg->hdr.version) == 2)
+	if (le32_to_cpu(reg->hdr.version) >= 2)
 		id &= IWL_FW_INI_REGION_V2_MASK;
 
 	if (le32_to_cpu(tlv->length) < sizeof(*reg))
@@ -1244,7 +1244,7 @@ static void iwl_dbg_tlv_init_cfg(struct iwl_fw_runtime *fwrt)
 		}
 
 		reg = (void *)(*active_reg)->data;
-		reg_type = le32_to_cpu(reg->type);
+		reg_type = reg->type;
 
 		if (reg_type != IWL_FW_INI_REGION_DRAM_BUFFER ||
 		    !(BIT(le32_to_cpu(reg->dram_alloc_id)) & failed_alloc))