net/ethtool/eeprom.c

29 static int fallback_set_params(struct eeprom_req_info *request,
33 	u32 offset = request->offset;
34 	u32 length = request->length;
36 	if (request->page)
37 		offset = request->page * ETH_MODULE_EEPROM_PAGE_LEN + offset;
40 	    request->i2c_address == 0x51)
53 static int eeprom_fallback(struct eeprom_req_info *request,
67 	err = fallback_set_params(request, &modinfo, &eeprom);
114 	struct eeprom_req_info *request = MODULE_EEPROM_REQINFO(req_base);
119 	page_data.offset = request->offset;
120 	page_data.length = request->length;
121 	page_data.i2c_address = request->i2c_address;
122 	page_data.page = request->page;
123 	page_data.bank = request->bank;
148 		return eeprom_fallback(request, reply);
155 	struct eeprom_req_info *request = MODULE_EEPROM_REQINFO(req_info);
163 	request->i2c_address = nla_get_u8(tb[ETHTOOL_A_MODULE_EEPROM_I2C_ADDRESS]);
164 	request->offset = nla_get_u32(tb[ETHTOOL_A_MODULE_EEPROM_OFFSET]);
165 	request->length = nla_get_u32(tb[ETHTOOL_A_MODULE_EEPROM_LENGTH]);
169 	 * This means user may only request dumps of length limited to 128 from
173 	request->page = nla_get_u8(tb[ETHTOOL_A_MODULE_EEPROM_PAGE]);
174 	if (request->page && request->offset < ETH_MODULE_EEPROM_PAGE_LEN) {
180 	if (request->offset < ETH_MODULE_EEPROM_PAGE_LEN &&
181 	    request->offset + request->length > ETH_MODULE_EEPROM_PAGE_LEN) {
185 	} else if (request->offset + request->length > ETH_MODULE_EEPROM_PAGE_LEN * 2) {
192 		request->bank = nla_get_u8(tb[ETHTOOL_A_MODULE_EEPROM_BANK]);
200 	const struct eeprom_req_info *request = MODULE_EEPROM_REQINFO(req_base);
202 	return nla_total_size(sizeof(u8) * request->length); /* _EEPROM_DATA */