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| author |   Scott W Taylor <scott.w.taylor@intel.com> | 2019-10-09 07:09:40 -0700 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2019-11-06 16:41:45 -0800 |
| commit | a012dca9f7a2bc44b6680c20bec06fe9b2e55d37 (patch) | |
| tree | 6df54ddc8c6dc8d6359dc87b429e6b8d7c47bca6 /drivers/net/ethernet/intel/ice/ice_common.c | |
| parent | tc-testing: updated pedit TDC tests (diff) | |
| download | linux-dev-a012dca9f7a2bc44b6680c20bec06fe9b2e55d37.tar.xz linux-dev-a012dca9f7a2bc44b6680c20bec06fe9b2e55d37.zip | |
ice: add ethtool -m support for reading i2c eeprom modules
Implement ethtool -m support to read eeprom data from SFP/QSFP modules.
Signed-off-by: Scott W Taylor <scott.w.taylor@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_common.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_common.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c index 3a6b3950eb0e..b41bf475b36f 100644 --- a/drivers/net/ethernet/intel/ice/ice_common.c +++ b/drivers/net/ethernet/intel/ice/ice_common.c @@ -2556,6 +2556,52 @@ ice_aq_set_port_id_led(struct ice_port_info *pi, bool is_orig_mode, } /** + * ice_aq_sff_eeprom + * @hw: pointer to the HW struct + * @lport: bits [7:0] = logical port, bit [8] = logical port valid + * @bus_addr: I2C bus address of the eeprom (typically 0xA0, 0=topo default) + * @mem_addr: I2C offset. lower 8 bits for address, 8 upper bits zero padding. + * @page: QSFP page + * @set_page: set or ignore the page + * @data: pointer to data buffer to be read/written to the I2C device. + * @length: 1-16 for read, 1 for write. + * @write: 0 read, 1 for write. + * @cd: pointer to command details structure or NULL + * + * Read/Write SFF EEPROM (0x06EE) + */ +enum ice_status +ice_aq_sff_eeprom(struct ice_hw *hw, u16 lport, u8 bus_addr, + u16 mem_addr, u8 page, u8 set_page, u8 *data, u8 length, + bool write, struct ice_sq_cd *cd) +{ + struct ice_aqc_sff_eeprom *cmd; + struct ice_aq_desc desc; + enum ice_status status; + + if (!data || (mem_addr & 0xff00)) + return ICE_ERR_PARAM; + + ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_sff_eeprom); + cmd = &desc.params.read_write_sff_param; + desc.flags = cpu_to_le16(ICE_AQ_FLAG_RD | ICE_AQ_FLAG_BUF); + cmd->lport_num = (u8)(lport & 0xff); + cmd->lport_num_valid = (u8)((lport >> 8) & 0x01); + cmd->i2c_bus_addr = cpu_to_le16(((bus_addr >> 1) & + ICE_AQC_SFF_I2CBUS_7BIT_M) | + ((set_page << + ICE_AQC_SFF_SET_EEPROM_PAGE_S) & + ICE_AQC_SFF_SET_EEPROM_PAGE_M)); + cmd->i2c_mem_addr = cpu_to_le16(mem_addr & 0xff); + cmd->eeprom_page = cpu_to_le16((u16)page << ICE_AQC_SFF_EEPROM_PAGE_S); + if (write) + cmd->i2c_bus_addr |= cpu_to_le16(ICE_AQC_SFF_IS_WRITE); + + status = ice_aq_send_cmd(hw, &desc, data, length, cd); + return status; +} + +/** * __ice_aq_get_set_rss_lut * @hw: pointer to the hardware structure * @vsi_id: VSI FW index |