| Message ID | 20210714033833.11640-1-quan@os.amperecomputing.com |
|---|---|
| Headers | show |
| Series | Add SSIF BMC driver | expand |
On Wed, Jul 14, 2021 at 10:38:30AM +0700, Quan Nguyen wrote: > This series add support the SSIF BMC driver which is to perform in-band > IPMI communication with their host in management (BMC) side. > > SSIF BMC driver in this series is tested with Aspeed AST2500. Ok, I have queued this and added Rob's review. Five versions, you had to work for this one :). Thanks, -corey > > v5: > + Correct the patches order to fix the bisect issue found by > kernel build robot > > v4: > + Fix recursive spinlock [Graeme] > + Send response with Completion code 0xFF when aborting [Quan] > + Fix warning with dt_binding_check [Rob] > + Change aspeed-ssif-bmc.yaml to ssif-bmc.yaml [Quan] > + Added bounding check on SMBus writes and the whole request [Dan] > + Moved buffer to end of struct ssif_bmc_ctx to avoid context > corruption if somehow buffer is written past the end [Dan] > + Return -EINVAL if userspace buffer too small, dont > silence truncate [Corey, Joel] > + Not necessary to check NONBLOCK in lock [Corey] > + Enforce one user at a time [Joel] > + Reject write with invalid response length from userspace [Corey] > + Add state machines for better ssif bmc state handling [Quan] > + Drop ssif_bmc_aspeed.c and make ssif_bmc.c is generic > SSIF BMC driver [Quan] > + Change compatible string "aspeed,ast2500-ssif-bmc" to > "ampere,ssif-bmc" [Quan] > + Toggle Slave enable in i2c-aspeed to turn on/off slave mode [Ryan] > + Added slave_enable() to struct i2c_algorithm to control > slave mode and to address the recursive spinlock [Graeme, Ryan] > + Abort current request with invalid SMBus write or > invalid command [Quan] > + Abort all request if there is pending response [Quan] > + Changed validate_pec() to validate_request() [Quan] > + Add unsupported_smbus_cmd() to handle unknown SMBus command [Quan] > + Print internal state string for ease investigating issue [Quan] > + Move to READY state on SLAVE_STOP event [Quan] > + Change initilize_transfer() to process_smbus_cmd() [Quan] > + Introduce functions for each slave event [Quan] > > v3: > + Switched binding doc to use DT schema format [Rob] > + Splited into generic ssif_bmc and aspeed-specific [Corey, Joel] > + Removed redundant license info [Joel] > + Switched to use traditional if-else [Joel] > + Removed unused ssif_bmc_ioctl() [Joel] > + Made handle_request()/complete_response() to return void [Joel] > + Refactored send_ssif_bmc_response()/receive_ssif_bmc_request() > [Corey] > + Remove mutex [Corey] > + Use spin_lock/unlock_irqsave/restore in callback [Corey] > + Removed the unnecessary memset [Corey] > + Switch to use dev_err() [Corey] > + Combine mask/unmask two interrupts together [Corey] > + Fixed unhandled Tx done with NAK [Quan] > + Late ack'ed Tx done w/wo Ack irq [Quan] > + Use aspeed-specific exported aspeed_set_slave_busy() when slave busy > to fix the deadlock [Graeme, Philipp, Quan] > + Clean buffer for last multipart read [Quan] > + Handle unknown incoming command [Quan] > > v2: > + Fixed compiling error with COMPILE_TEST for arc > > Quan Nguyen (3): > i2c: aspeed: Add slave_enable() to toggle slave mode > ipmi: ssif_bmc: Add SSIF BMC driver > bindings: ipmi: Add binding for SSIF BMC driver > > .../devicetree/bindings/ipmi/ssif-bmc.yaml | 38 + > drivers/char/ipmi/Kconfig | 11 + > drivers/char/ipmi/Makefile | 1 + > drivers/char/ipmi/ssif_bmc.c | 781 ++++++++++++++++++ > drivers/char/ipmi/ssif_bmc.h | 106 +++ > drivers/i2c/busses/i2c-aspeed.c | 20 + > include/linux/i2c.h | 2 + > 7 files changed, 959 insertions(+) > create mode 100644 Documentation/devicetree/bindings/ipmi/ssif-bmc.yaml > create mode 100644 drivers/char/ipmi/ssif_bmc.c > create mode 100644 drivers/char/ipmi/ssif_bmc.h > > -- > 2.28.0 >
On 16/07/2021 06:32, Corey Minyard wrote: > On Wed, Jul 14, 2021 at 10:38:30AM +0700, Quan Nguyen wrote: >> This series add support the SSIF BMC driver which is to perform in-band >> IPMI communication with their host in management (BMC) side. >> >> SSIF BMC driver in this series is tested with Aspeed AST2500. > > Ok, I have queued this and added Rob's review. Five versions, you had > to work for this one :). > > Thanks, > > -corey > Thank you very much for your help in these version :) - Quan >> >> v5: >> + Correct the patches order to fix the bisect issue found by >> kernel build robot >> >> v4: >> + Fix recursive spinlock [Graeme] >> + Send response with Completion code 0xFF when aborting [Quan] >> + Fix warning with dt_binding_check [Rob] >> + Change aspeed-ssif-bmc.yaml to ssif-bmc.yaml [Quan] >> + Added bounding check on SMBus writes and the whole request [Dan] >> + Moved buffer to end of struct ssif_bmc_ctx to avoid context >> corruption if somehow buffer is written past the end [Dan] >> + Return -EINVAL if userspace buffer too small, dont >> silence truncate [Corey, Joel] >> + Not necessary to check NONBLOCK in lock [Corey] >> + Enforce one user at a time [Joel] >> + Reject write with invalid response length from userspace [Corey] >> + Add state machines for better ssif bmc state handling [Quan] >> + Drop ssif_bmc_aspeed.c and make ssif_bmc.c is generic >> SSIF BMC driver [Quan] >> + Change compatible string "aspeed,ast2500-ssif-bmc" to >> "ampere,ssif-bmc" [Quan] >> + Toggle Slave enable in i2c-aspeed to turn on/off slave mode [Ryan] >> + Added slave_enable() to struct i2c_algorithm to control >> slave mode and to address the recursive spinlock [Graeme, Ryan] >> + Abort current request with invalid SMBus write or >> invalid command [Quan] >> + Abort all request if there is pending response [Quan] >> + Changed validate_pec() to validate_request() [Quan] >> + Add unsupported_smbus_cmd() to handle unknown SMBus command [Quan] >> + Print internal state string for ease investigating issue [Quan] >> + Move to READY state on SLAVE_STOP event [Quan] >> + Change initilize_transfer() to process_smbus_cmd() [Quan] >> + Introduce functions for each slave event [Quan] >> >> v3: >> + Switched binding doc to use DT schema format [Rob] >> + Splited into generic ssif_bmc and aspeed-specific [Corey, Joel] >> + Removed redundant license info [Joel] >> + Switched to use traditional if-else [Joel] >> + Removed unused ssif_bmc_ioctl() [Joel] >> + Made handle_request()/complete_response() to return void [Joel] >> + Refactored send_ssif_bmc_response()/receive_ssif_bmc_request() >> [Corey] >> + Remove mutex [Corey] >> + Use spin_lock/unlock_irqsave/restore in callback [Corey] >> + Removed the unnecessary memset [Corey] >> + Switch to use dev_err() [Corey] >> + Combine mask/unmask two interrupts together [Corey] >> + Fixed unhandled Tx done with NAK [Quan] >> + Late ack'ed Tx done w/wo Ack irq [Quan] >> + Use aspeed-specific exported aspeed_set_slave_busy() when slave busy >> to fix the deadlock [Graeme, Philipp, Quan] >> + Clean buffer for last multipart read [Quan] >> + Handle unknown incoming command [Quan] >> >> v2: >> + Fixed compiling error with COMPILE_TEST for arc >> >> Quan Nguyen (3): >> i2c: aspeed: Add slave_enable() to toggle slave mode >> ipmi: ssif_bmc: Add SSIF BMC driver >> bindings: ipmi: Add binding for SSIF BMC driver >> >> .../devicetree/bindings/ipmi/ssif-bmc.yaml | 38 + >> drivers/char/ipmi/Kconfig | 11 + >> drivers/char/ipmi/Makefile | 1 + >> drivers/char/ipmi/ssif_bmc.c | 781 ++++++++++++++++++ >> drivers/char/ipmi/ssif_bmc.h | 106 +++ >> drivers/i2c/busses/i2c-aspeed.c | 20 + >> include/linux/i2c.h | 2 + >> 7 files changed, 959 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/ipmi/ssif-bmc.yaml >> create mode 100644 drivers/char/ipmi/ssif_bmc.c >> create mode 100644 drivers/char/ipmi/ssif_bmc.h >> >> -- >> 2.28.0 >>
This series add support the SSIF BMC driver which is to perform in-band IPMI communication with their host in management (BMC) side. SSIF BMC driver in this series is tested with Aspeed AST2500. v5: + Correct the patches order to fix the bisect issue found by kernel build robot v4: + Fix recursive spinlock [Graeme] + Send response with Completion code 0xFF when aborting [Quan] + Fix warning with dt_binding_check [Rob] + Change aspeed-ssif-bmc.yaml to ssif-bmc.yaml [Quan] + Added bounding check on SMBus writes and the whole request [Dan] + Moved buffer to end of struct ssif_bmc_ctx to avoid context corruption if somehow buffer is written past the end [Dan] + Return -EINVAL if userspace buffer too small, dont silence truncate [Corey, Joel] + Not necessary to check NONBLOCK in lock [Corey] + Enforce one user at a time [Joel] + Reject write with invalid response length from userspace [Corey] + Add state machines for better ssif bmc state handling [Quan] + Drop ssif_bmc_aspeed.c and make ssif_bmc.c is generic SSIF BMC driver [Quan] + Change compatible string "aspeed,ast2500-ssif-bmc" to "ampere,ssif-bmc" [Quan] + Toggle Slave enable in i2c-aspeed to turn on/off slave mode [Ryan] + Added slave_enable() to struct i2c_algorithm to control slave mode and to address the recursive spinlock [Graeme, Ryan] + Abort current request with invalid SMBus write or invalid command [Quan] + Abort all request if there is pending response [Quan] + Changed validate_pec() to validate_request() [Quan] + Add unsupported_smbus_cmd() to handle unknown SMBus command [Quan] + Print internal state string for ease investigating issue [Quan] + Move to READY state on SLAVE_STOP event [Quan] + Change initilize_transfer() to process_smbus_cmd() [Quan] + Introduce functions for each slave event [Quan] v3: + Switched binding doc to use DT schema format [Rob] + Splited into generic ssif_bmc and aspeed-specific [Corey, Joel] + Removed redundant license info [Joel] + Switched to use traditional if-else [Joel] + Removed unused ssif_bmc_ioctl() [Joel] + Made handle_request()/complete_response() to return void [Joel] + Refactored send_ssif_bmc_response()/receive_ssif_bmc_request() [Corey] + Remove mutex [Corey] + Use spin_lock/unlock_irqsave/restore in callback [Corey] + Removed the unnecessary memset [Corey] + Switch to use dev_err() [Corey] + Combine mask/unmask two interrupts together [Corey] + Fixed unhandled Tx done with NAK [Quan] + Late ack'ed Tx done w/wo Ack irq [Quan] + Use aspeed-specific exported aspeed_set_slave_busy() when slave busy to fix the deadlock [Graeme, Philipp, Quan] + Clean buffer for last multipart read [Quan] + Handle unknown incoming command [Quan] v2: + Fixed compiling error with COMPILE_TEST for arc Quan Nguyen (3): i2c: aspeed: Add slave_enable() to toggle slave mode ipmi: ssif_bmc: Add SSIF BMC driver bindings: ipmi: Add binding for SSIF BMC driver .../devicetree/bindings/ipmi/ssif-bmc.yaml | 38 + drivers/char/ipmi/Kconfig | 11 + drivers/char/ipmi/Makefile | 1 + drivers/char/ipmi/ssif_bmc.c | 781 ++++++++++++++++++ drivers/char/ipmi/ssif_bmc.h | 106 +++ drivers/i2c/busses/i2c-aspeed.c | 20 + include/linux/i2c.h | 2 + 7 files changed, 959 insertions(+) create mode 100644 Documentation/devicetree/bindings/ipmi/ssif-bmc.yaml create mode 100644 drivers/char/ipmi/ssif_bmc.c create mode 100644 drivers/char/ipmi/ssif_bmc.h