Re: [PATCH v5 0/4] iMC SMBUS and DIMM bus probing
On Fri, Sep 27, 2013 at 6:02 PM, Andy Lutomirski wrote: > Intel LGA2011 machines have dedicated SMBUS controllers for DIMM > sockets. Because they're dedicated, they can be safely and accurately > probed, since all devices on them are known to be attached to DIMMs. > The devices found are: > - SPD EEPROMs > - TSODs (Temperature Sensor on DIMMs) > - Other interesting things, with drivers hopefully to follow... > > This patch series adds a simple generic layer for probing for DIMMs over > SMBUS and an i2c bus driver for the iMC controller found on Intel > LGA2011 chips. > > It now uses only modern infrastructure -- new-style I2C probing and the > at24 (instead of eeprom) driver. > > I've tested this on a Core i7 Extreme and on a Xeon E5 server. > > Patches 1-3 are useful even without patch 4. I'm still hoping for feedback > on patch 4. > > Changes from v4: > - Added the sb_edac changes -- i2c_imc and sb_edac can now coexist > - Added some paranoid race detection. > - The driver now confirms its ability to claim software control of the SMBUS >master. This prevents unpleasant problems on systems that enable CLTT >(closed loop thermal throttling). > - Reordered the patches so that the DIMM bus code is last. > > Changes from v3: > - Dropped redundant "tsod" driver > - Dropped eeprom modalias > - Switched to probing for the "eeprom" and "jc42" > > Andy Lutomirski (4): > Move Intel SNB device ids from sb_edac to pci_ids.h > sb_edac: Claim a different PCI device > i2c_imc: New driver for Intel's iMC, found on LGA2011 chips > i2c, i2c_imc: Add DIMM bus code > > drivers/edac/sb_edac.c| 32 +-- > drivers/i2c/busses/Kconfig| 19 ++ > drivers/i2c/busses/Makefile | 5 + > drivers/i2c/busses/dimm-bus.c | 97 > drivers/i2c/busses/i2c-imc.c | 562 > ++ > include/linux/i2c/dimm-bus.h | 24 ++ > include/linux/pci_ids.h | 15 ++ > 7 files changed, 723 insertions(+), 31 deletions(-) > create mode 100644 drivers/i2c/busses/dimm-bus.c > create mode 100644 drivers/i2c/busses/i2c-imc.c > create mode 100644 include/linux/i2c/dimm-bus.h Any update on these? It would be nice to get them reviewed and applied. Thanks, Andy -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH v5 0/4] iMC SMBUS and DIMM bus probing
On Fri, Sep 27, 2013 at 6:02 PM, Andy Lutomirski l...@amacapital.net wrote: Intel LGA2011 machines have dedicated SMBUS controllers for DIMM sockets. Because they're dedicated, they can be safely and accurately probed, since all devices on them are known to be attached to DIMMs. The devices found are: - SPD EEPROMs - TSODs (Temperature Sensor on DIMMs) - Other interesting things, with drivers hopefully to follow... This patch series adds a simple generic layer for probing for DIMMs over SMBUS and an i2c bus driver for the iMC controller found on Intel LGA2011 chips. It now uses only modern infrastructure -- new-style I2C probing and the at24 (instead of eeprom) driver. I've tested this on a Core i7 Extreme and on a Xeon E5 server. Patches 1-3 are useful even without patch 4. I'm still hoping for feedback on patch 4. Changes from v4: - Added the sb_edac changes -- i2c_imc and sb_edac can now coexist - Added some paranoid race detection. - The driver now confirms its ability to claim software control of the SMBUS master. This prevents unpleasant problems on systems that enable CLTT (closed loop thermal throttling). - Reordered the patches so that the DIMM bus code is last. Changes from v3: - Dropped redundant tsod driver - Dropped eeprom modalias - Switched to probing for the eeprom and jc42 Andy Lutomirski (4): Move Intel SNB device ids from sb_edac to pci_ids.h sb_edac: Claim a different PCI device i2c_imc: New driver for Intel's iMC, found on LGA2011 chips i2c, i2c_imc: Add DIMM bus code drivers/edac/sb_edac.c| 32 +-- drivers/i2c/busses/Kconfig| 19 ++ drivers/i2c/busses/Makefile | 5 + drivers/i2c/busses/dimm-bus.c | 97 drivers/i2c/busses/i2c-imc.c | 562 ++ include/linux/i2c/dimm-bus.h | 24 ++ include/linux/pci_ids.h | 15 ++ 7 files changed, 723 insertions(+), 31 deletions(-) create mode 100644 drivers/i2c/busses/dimm-bus.c create mode 100644 drivers/i2c/busses/i2c-imc.c create mode 100644 include/linux/i2c/dimm-bus.h Any update on these? It would be nice to get them reviewed and applied. Thanks, Andy -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v5 0/4] iMC SMBUS and DIMM bus probing
Intel LGA2011 machines have dedicated SMBUS controllers for DIMM sockets. Because they're dedicated, they can be safely and accurately probed, since all devices on them are known to be attached to DIMMs. The devices found are: - SPD EEPROMs - TSODs (Temperature Sensor on DIMMs) - Other interesting things, with drivers hopefully to follow... This patch series adds a simple generic layer for probing for DIMMs over SMBUS and an i2c bus driver for the iMC controller found on Intel LGA2011 chips. It now uses only modern infrastructure -- new-style I2C probing and the at24 (instead of eeprom) driver. I've tested this on a Core i7 Extreme and on a Xeon E5 server. Patches 1-3 are useful even without patch 4. I'm still hoping for feedback on patch 4. Changes from v4: - Added the sb_edac changes -- i2c_imc and sb_edac can now coexist - Added some paranoid race detection. - The driver now confirms its ability to claim software control of the SMBUS master. This prevents unpleasant problems on systems that enable CLTT (closed loop thermal throttling). - Reordered the patches so that the DIMM bus code is last. Changes from v3: - Dropped redundant "tsod" driver - Dropped eeprom modalias - Switched to probing for the "eeprom" and "jc42" Andy Lutomirski (4): Move Intel SNB device ids from sb_edac to pci_ids.h sb_edac: Claim a different PCI device i2c_imc: New driver for Intel's iMC, found on LGA2011 chips i2c, i2c_imc: Add DIMM bus code drivers/edac/sb_edac.c| 32 +-- drivers/i2c/busses/Kconfig| 19 ++ drivers/i2c/busses/Makefile | 5 + drivers/i2c/busses/dimm-bus.c | 97 drivers/i2c/busses/i2c-imc.c | 562 ++ include/linux/i2c/dimm-bus.h | 24 ++ include/linux/pci_ids.h | 15 ++ 7 files changed, 723 insertions(+), 31 deletions(-) create mode 100644 drivers/i2c/busses/dimm-bus.c create mode 100644 drivers/i2c/busses/i2c-imc.c create mode 100644 include/linux/i2c/dimm-bus.h -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH v5 0/4] iMC SMBUS and DIMM bus probing
Intel LGA2011 machines have dedicated SMBUS controllers for DIMM sockets. Because they're dedicated, they can be safely and accurately probed, since all devices on them are known to be attached to DIMMs. The devices found are: - SPD EEPROMs - TSODs (Temperature Sensor on DIMMs) - Other interesting things, with drivers hopefully to follow... This patch series adds a simple generic layer for probing for DIMMs over SMBUS and an i2c bus driver for the iMC controller found on Intel LGA2011 chips. It now uses only modern infrastructure -- new-style I2C probing and the at24 (instead of eeprom) driver. I've tested this on a Core i7 Extreme and on a Xeon E5 server. Patches 1-3 are useful even without patch 4. I'm still hoping for feedback on patch 4. Changes from v4: - Added the sb_edac changes -- i2c_imc and sb_edac can now coexist - Added some paranoid race detection. - The driver now confirms its ability to claim software control of the SMBUS master. This prevents unpleasant problems on systems that enable CLTT (closed loop thermal throttling). - Reordered the patches so that the DIMM bus code is last. Changes from v3: - Dropped redundant tsod driver - Dropped eeprom modalias - Switched to probing for the eeprom and jc42 Andy Lutomirski (4): Move Intel SNB device ids from sb_edac to pci_ids.h sb_edac: Claim a different PCI device i2c_imc: New driver for Intel's iMC, found on LGA2011 chips i2c, i2c_imc: Add DIMM bus code drivers/edac/sb_edac.c| 32 +-- drivers/i2c/busses/Kconfig| 19 ++ drivers/i2c/busses/Makefile | 5 + drivers/i2c/busses/dimm-bus.c | 97 drivers/i2c/busses/i2c-imc.c | 562 ++ include/linux/i2c/dimm-bus.h | 24 ++ include/linux/pci_ids.h | 15 ++ 7 files changed, 723 insertions(+), 31 deletions(-) create mode 100644 drivers/i2c/busses/dimm-bus.c create mode 100644 drivers/i2c/busses/i2c-imc.c create mode 100644 include/linux/i2c/dimm-bus.h -- 1.8.3.1 -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
