* [PATCH v4 0/2] add Intel FPGA image reload support @ 2022-08-15 6:07 Tianfei Zhang 2022-08-15 6:07 ` [PATCH v4 1/2] fpga: m10bmc-sec: add sysfs to trigger FPGA/BMC images reload Tianfei Zhang 2022-08-15 6:07 ` [PATCH v4 2/2] fpga: m10bmc-sec: add m10bmc_sec_retimer_load callback Tianfei Zhang 0 siblings, 2 replies; 6+ messages in thread From: Tianfei Zhang @ 2022-08-15 6:07 UTC (permalink / raw) To: mdf, yilun.xu, linux-fpga, lee.jones, russell.h.weight Cc: hao.wu, trix, Tianfei Zhang This patchset adds FPGA image reload support on Intel PAC N3000 Card. Image reload means that a reload mechanism of an FPGA, BMC, or firmware image from FLASH or EEPROM after flash or program the images without power cycle the server. This patchset introduces 2 new sysfs files for query the available images and trigger a image reload. patch 1: add the available_images and image_load sysfs files. Write a key word into image_load sysfs file to trigger a reload of an FPGA, BMC, or firmware image from FLASH or EEPROM. patch 2: add a trigger to update a new Retimer firmware. v4: From Yilun and Matthew's comments, provide more detail about how to trigger the FPGA/BMC image reload. v3: From Lee Jones's comment, uses regmap_update_bits() API instead of the wrapper of m10bmc_sys_update_bits(). v2: add more detail about how to use the image_load sysfs files in ABI documentation. Russ Weight (2): fpga: m10bmc-sec: add sysfs to trigger FPGA/BMC images reload fpga: m10bmc-sec: add m10bmc_sec_retimer_load callback .../sysfs-driver-intel-m10-bmc-sec-update | 41 +++ drivers/fpga/intel-m10-bmc-sec-update.c | 253 ++++++++++++++++++ include/linux/mfd/intel-m10-bmc.h | 31 +++ 3 files changed, 325 insertions(+) -- 2.26.2 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v4 1/2] fpga: m10bmc-sec: add sysfs to trigger FPGA/BMC images reload 2022-08-15 6:07 [PATCH v4 0/2] add Intel FPGA image reload support Tianfei Zhang @ 2022-08-15 6:07 ` Tianfei Zhang 2022-08-23 18:19 ` matthew.gerlach 2022-08-15 6:07 ` [PATCH v4 2/2] fpga: m10bmc-sec: add m10bmc_sec_retimer_load callback Tianfei Zhang 1 sibling, 1 reply; 6+ messages in thread From: Tianfei Zhang @ 2022-08-15 6:07 UTC (permalink / raw) To: mdf, yilun.xu, linux-fpga, lee.jones, russell.h.weight Cc: hao.wu, trix, Tianfei Zhang From: Russ Weight <russell.h.weight@intel.com> Add the available_images and image_load sysfs files. The available_images file returns a space separated list of key words that may be written into the image_load file. These keywords describe an FPGA, BMC, or firmware image in FLASH or EEPROM storage that may be loaded. The image_load sysfs file may be written with a key word to trigger a reload of an FPGA, BMC, or firmware image from FLASH or EEPROM. Signed-off-by: Russ Weight <russell.h.weight@intel.com> Signed-off-by: Tianfei Zhang <tianfei.zhang@intel.com> --- v4: From Yilun and Matthew's comments, provide more detail about how to trigger the FPGA/BMC image reload. v3: uses regmap_update_bits() API instead of m10bmc_sys_update_bits(). v2: adds the steps for how to use the "image_load" sysfs file. --- .../sysfs-driver-intel-m10-bmc-sec-update | 41 +++++++ drivers/fpga/intel-m10-bmc-sec-update.c | 105 ++++++++++++++++++ 2 files changed, 146 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-driver-intel-m10-bmc-sec-update b/Documentation/ABI/testing/sysfs-driver-intel-m10-bmc-sec-update index 0a41afe0ab4c..0db2f1e73a82 100644 --- a/Documentation/ABI/testing/sysfs-driver-intel-m10-bmc-sec-update +++ b/Documentation/ABI/testing/sysfs-driver-intel-m10-bmc-sec-update @@ -59,3 +59,44 @@ Contact: Russ Weight <russell.h.weight@intel.com> Description: Read only. Returns number of times the secure update staging area has been flashed. Format: "%u". + +What: /sys/bus/platform/drivers/intel-m10bmc-sec-update/.../control/available_images +Date: Aug 2022 +KernelVersion: 6.0 +Contact: Russ Weight <russell.h.weight@intel.com> +Description: Read-only. This file returns a space separated list of + key words that may be written into the image_load file + described below. These keywords decribe an FPGA, BMC, + or firmware image in FLASH or EEPROM storage that may + be loaded. + +What: /sys/bus/platform/drivers/intel-m10bmc-sec-update/.../control/image_load +Date: Aug 2022 +KernelVersion: 6.0 +Contact: Russ Weight <russell.h.weight@intel.com> +Description: Write-only. A key word may be written to this file to + trigger a reload of an FPGA, BMC, or firmware image from + FLASH or EEPROM. Refer to the available_images file for a + list of supported key words for the underlying device. + Writing an unsupported string to this file will result in + EINVAL being returned. + It should remove all of resources related to the old FPGA/BMC + image before trigger the image reload otherwise the functionality + of FPGA/BMC will fail. We recommended that follow the below steps + or directly use the OPAE RSU script to perform the reload for FPGA/BMC + image. + Here is the steps to trigger the reload for FPGA/BMC image: + 1. Unbind driver from all VFs to be affected by the trigger. + 2. Disable all VFs via "/sys/bus/pic/device/xxxx/sriov_numvfs" + sysfs file. + 3. Unbind driver from all PFs affectected by the trigger except the + management PF. + 4. Disable AER on all PFs and upstream pci root port. + 5. Trigger image reload of FPGA and/or other programmable devices. + 6. Hot-remove the PCI devices of the FPGA card via + "/sys/bus/pci/devices/xxxx/remove" sysfs file. + 7. Wait for reconfiguration of FPGA an/or other programmable parts + (e.g. 10 seconds) + 8. Re-scan PCI bus. + 9. Renable the AER on all PFs and upstream root port. + 10. Bring up VFs as desired. diff --git a/drivers/fpga/intel-m10-bmc-sec-update.c b/drivers/fpga/intel-m10-bmc-sec-update.c index 72c677c910de..3a082911cf67 100644 --- a/drivers/fpga/intel-m10-bmc-sec-update.c +++ b/drivers/fpga/intel-m10-bmc-sec-update.c @@ -14,6 +14,8 @@ #include <linux/platform_device.h> #include <linux/slab.h> +struct image_load; + struct m10bmc_sec { struct device *dev; struct intel_m10bmc *m10bmc; @@ -21,6 +23,12 @@ struct m10bmc_sec { char *fw_name; u32 fw_name_id; bool cancel_request; + struct image_load *image_load; /* terminated with { } member */ +}; + +struct image_load { + const char *name; + int (*load_image)(struct m10bmc_sec *sec); }; static DEFINE_XARRAY_ALLOC(fw_upload_xa); @@ -137,6 +145,54 @@ DEVICE_ATTR_SEC_CSK_RO(pr, PR_PROG_ADDR + CSK_VEC_OFFSET); #define FLASH_COUNT_SIZE 4096 /* count stored as inverted bit vector */ +static ssize_t available_images_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct m10bmc_sec *sec = dev_get_drvdata(dev); + const struct image_load *hndlr; + ssize_t count = 0; + + for (hndlr = sec->image_load; hndlr->name; hndlr++) { + count += scnprintf(buf + count, PAGE_SIZE - count, + "%s ", hndlr->name); + } + + buf[count - 1] = '\n'; + + return count; +} +static DEVICE_ATTR_RO(available_images); + +static ssize_t image_load_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct m10bmc_sec *sec = dev_get_drvdata(dev); + const struct image_load *hndlr; + int ret = -EINVAL; + + for (hndlr = sec->image_load; hndlr->name; hndlr++) { + if (sysfs_streq(buf, hndlr->name)) { + ret = hndlr->load_image(sec); + break; + } + } + + return ret ? : count; +} +static DEVICE_ATTR_WO(image_load); + +static struct attribute *m10bmc_control_attrs[] = { + &dev_attr_available_images.attr, + &dev_attr_image_load.attr, + NULL, +}; + +static struct attribute_group m10bmc_control_attr_group = { + .name = "control", + .attrs = m10bmc_control_attrs, +}; + static ssize_t flash_count_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -195,6 +251,7 @@ static struct attribute_group m10bmc_security_attr_group = { static const struct attribute_group *m10bmc_sec_attr_groups[] = { &m10bmc_security_attr_group, + &m10bmc_control_attr_group, NULL, }; @@ -208,6 +265,53 @@ static void log_error_regs(struct m10bmc_sec *sec, u32 doorbell) dev_err(sec->dev, "RSU auth result: 0x%08x\n", auth_result); } +static int m10bmc_sec_bmc_image_load(struct m10bmc_sec *sec, + unsigned int val) +{ + u32 doorbell; + int ret; + + if (val > 1) { + dev_err(sec->dev, "invalid reload val = %d\n", val); + return -EINVAL; + } + + ret = m10bmc_sys_read(sec->m10bmc, M10BMC_DOORBELL, &doorbell); + if (ret) + return ret; + + if (doorbell & DRBL_REBOOT_DISABLED) + return -EBUSY; + + return regmap_update_bits(sec->m10bmc->regmap, + M10BMC_SYS_BASE + M10BMC_DOORBELL, + DRBL_CONFIG_SEL | DRBL_REBOOT_REQ, + FIELD_PREP(DRBL_CONFIG_SEL, val) | + DRBL_REBOOT_REQ); +} + +static int m10bmc_sec_bmc_image_load_0(struct m10bmc_sec *sec) +{ + return m10bmc_sec_bmc_image_load(sec, 0); +} + +static int m10bmc_sec_bmc_image_load_1(struct m10bmc_sec *sec) +{ + return m10bmc_sec_bmc_image_load(sec, 1); +} + +static struct image_load m10bmc_image_load_hndlrs[] = { + { + .name = "bmc_factory", + .load_image = m10bmc_sec_bmc_image_load_1, + }, + { + .name = "bmc_user", + .load_image = m10bmc_sec_bmc_image_load_0, + }, + {} +}; + static enum fw_upload_err rsu_check_idle(struct m10bmc_sec *sec) { u32 doorbell; @@ -565,6 +669,7 @@ static int m10bmc_sec_probe(struct platform_device *pdev) sec->dev = &pdev->dev; sec->m10bmc = dev_get_drvdata(pdev->dev.parent); dev_set_drvdata(&pdev->dev, sec); + sec->image_load = m10bmc_image_load_hndlrs; ret = xa_alloc(&fw_upload_xa, &sec->fw_name_id, sec, xa_limit_32b, GFP_KERNEL); -- 2.26.2 ^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH v4 1/2] fpga: m10bmc-sec: add sysfs to trigger FPGA/BMC images reload 2022-08-15 6:07 ` [PATCH v4 1/2] fpga: m10bmc-sec: add sysfs to trigger FPGA/BMC images reload Tianfei Zhang @ 2022-08-23 18:19 ` matthew.gerlach 0 siblings, 0 replies; 6+ messages in thread From: matthew.gerlach @ 2022-08-23 18:19 UTC (permalink / raw) To: Tianfei Zhang Cc: mdf, yilun.xu, linux-fpga, lee.jones, russell.h.weight, hao.wu, trix On Mon, 15 Aug 2022, Tianfei Zhang wrote: > From: Russ Weight <russell.h.weight@intel.com> > > Add the available_images and image_load sysfs files. The available_images > file returns a space separated list of key words that may be written > into the image_load file. These keywords describe an FPGA, BMC, or > firmware image in FLASH or EEPROM storage that may be loaded. > > The image_load sysfs file may be written with a key word to trigger a > reload of an FPGA, BMC, or firmware image from FLASH or EEPROM. > > Signed-off-by: Russ Weight <russell.h.weight@intel.com> > Signed-off-by: Tianfei Zhang <tianfei.zhang@intel.com> Reviewed-by: Matthew Gerlach <matthew.gerlach@linux.intel.com> Looks good to me. Thanks. > --- > v4: > From Yilun and Matthew's comments, provide more detail about how > to trigger the FPGA/BMC image reload. > v3: > uses regmap_update_bits() API instead of m10bmc_sys_update_bits(). > v2: > adds the steps for how to use the "image_load" sysfs file. > --- > .../sysfs-driver-intel-m10-bmc-sec-update | 41 +++++++ > drivers/fpga/intel-m10-bmc-sec-update.c | 105 ++++++++++++++++++ > 2 files changed, 146 insertions(+) > > diff --git a/Documentation/ABI/testing/sysfs-driver-intel-m10-bmc-sec-update b/Documentation/ABI/testing/sysfs-driver-intel-m10-bmc-sec-update > index 0a41afe0ab4c..0db2f1e73a82 100644 > --- a/Documentation/ABI/testing/sysfs-driver-intel-m10-bmc-sec-update > +++ b/Documentation/ABI/testing/sysfs-driver-intel-m10-bmc-sec-update > @@ -59,3 +59,44 @@ Contact: Russ Weight <russell.h.weight@intel.com> > Description: Read only. Returns number of times the secure update > staging area has been flashed. > Format: "%u". > + > +What: /sys/bus/platform/drivers/intel-m10bmc-sec-update/.../control/available_images > +Date: Aug 2022 > +KernelVersion: 6.0 > +Contact: Russ Weight <russell.h.weight@intel.com> > +Description: Read-only. This file returns a space separated list of > + key words that may be written into the image_load file > + described below. These keywords decribe an FPGA, BMC, > + or firmware image in FLASH or EEPROM storage that may > + be loaded. > + > +What: /sys/bus/platform/drivers/intel-m10bmc-sec-update/.../control/image_load > +Date: Aug 2022 > +KernelVersion: 6.0 > +Contact: Russ Weight <russell.h.weight@intel.com> > +Description: Write-only. A key word may be written to this file to > + trigger a reload of an FPGA, BMC, or firmware image from > + FLASH or EEPROM. Refer to the available_images file for a > + list of supported key words for the underlying device. > + Writing an unsupported string to this file will result in > + EINVAL being returned. > + It should remove all of resources related to the old FPGA/BMC > + image before trigger the image reload otherwise the functionality > + of FPGA/BMC will fail. We recommended that follow the below steps > + or directly use the OPAE RSU script to perform the reload for FPGA/BMC > + image. > + Here is the steps to trigger the reload for FPGA/BMC image: > + 1. Unbind driver from all VFs to be affected by the trigger. > + 2. Disable all VFs via "/sys/bus/pic/device/xxxx/sriov_numvfs" > + sysfs file. > + 3. Unbind driver from all PFs affectected by the trigger except the > + management PF. > + 4. Disable AER on all PFs and upstream pci root port. > + 5. Trigger image reload of FPGA and/or other programmable devices. > + 6. Hot-remove the PCI devices of the FPGA card via > + "/sys/bus/pci/devices/xxxx/remove" sysfs file. > + 7. Wait for reconfiguration of FPGA an/or other programmable parts > + (e.g. 10 seconds) > + 8. Re-scan PCI bus. > + 9. Renable the AER on all PFs and upstream root port. > + 10. Bring up VFs as desired. > diff --git a/drivers/fpga/intel-m10-bmc-sec-update.c b/drivers/fpga/intel-m10-bmc-sec-update.c > index 72c677c910de..3a082911cf67 100644 > --- a/drivers/fpga/intel-m10-bmc-sec-update.c > +++ b/drivers/fpga/intel-m10-bmc-sec-update.c > @@ -14,6 +14,8 @@ > #include <linux/platform_device.h> > #include <linux/slab.h> > > +struct image_load; > + > struct m10bmc_sec { > struct device *dev; > struct intel_m10bmc *m10bmc; > @@ -21,6 +23,12 @@ struct m10bmc_sec { > char *fw_name; > u32 fw_name_id; > bool cancel_request; > + struct image_load *image_load; /* terminated with { } member */ > +}; > + > +struct image_load { > + const char *name; > + int (*load_image)(struct m10bmc_sec *sec); > }; > > static DEFINE_XARRAY_ALLOC(fw_upload_xa); > @@ -137,6 +145,54 @@ DEVICE_ATTR_SEC_CSK_RO(pr, PR_PROG_ADDR + CSK_VEC_OFFSET); > > #define FLASH_COUNT_SIZE 4096 /* count stored as inverted bit vector */ > > +static ssize_t available_images_show(struct device *dev, > + struct device_attribute *attr, char *buf) > +{ > + struct m10bmc_sec *sec = dev_get_drvdata(dev); > + const struct image_load *hndlr; > + ssize_t count = 0; > + > + for (hndlr = sec->image_load; hndlr->name; hndlr++) { > + count += scnprintf(buf + count, PAGE_SIZE - count, > + "%s ", hndlr->name); > + } > + > + buf[count - 1] = '\n'; > + > + return count; > +} > +static DEVICE_ATTR_RO(available_images); > + > +static ssize_t image_load_store(struct device *dev, > + struct device_attribute *attr, > + const char *buf, size_t count) > +{ > + struct m10bmc_sec *sec = dev_get_drvdata(dev); > + const struct image_load *hndlr; > + int ret = -EINVAL; > + > + for (hndlr = sec->image_load; hndlr->name; hndlr++) { > + if (sysfs_streq(buf, hndlr->name)) { > + ret = hndlr->load_image(sec); > + break; > + } > + } > + > + return ret ? : count; > +} > +static DEVICE_ATTR_WO(image_load); > + > +static struct attribute *m10bmc_control_attrs[] = { > + &dev_attr_available_images.attr, > + &dev_attr_image_load.attr, > + NULL, > +}; > + > +static struct attribute_group m10bmc_control_attr_group = { > + .name = "control", > + .attrs = m10bmc_control_attrs, > +}; > + > static ssize_t flash_count_show(struct device *dev, > struct device_attribute *attr, char *buf) > { > @@ -195,6 +251,7 @@ static struct attribute_group m10bmc_security_attr_group = { > > static const struct attribute_group *m10bmc_sec_attr_groups[] = { > &m10bmc_security_attr_group, > + &m10bmc_control_attr_group, > NULL, > }; > > @@ -208,6 +265,53 @@ static void log_error_regs(struct m10bmc_sec *sec, u32 doorbell) > dev_err(sec->dev, "RSU auth result: 0x%08x\n", auth_result); > } > > +static int m10bmc_sec_bmc_image_load(struct m10bmc_sec *sec, > + unsigned int val) > +{ > + u32 doorbell; > + int ret; > + > + if (val > 1) { > + dev_err(sec->dev, "invalid reload val = %d\n", val); > + return -EINVAL; > + } > + > + ret = m10bmc_sys_read(sec->m10bmc, M10BMC_DOORBELL, &doorbell); > + if (ret) > + return ret; > + > + if (doorbell & DRBL_REBOOT_DISABLED) > + return -EBUSY; > + > + return regmap_update_bits(sec->m10bmc->regmap, > + M10BMC_SYS_BASE + M10BMC_DOORBELL, > + DRBL_CONFIG_SEL | DRBL_REBOOT_REQ, > + FIELD_PREP(DRBL_CONFIG_SEL, val) | > + DRBL_REBOOT_REQ); > +} > + > +static int m10bmc_sec_bmc_image_load_0(struct m10bmc_sec *sec) > +{ > + return m10bmc_sec_bmc_image_load(sec, 0); > +} > + > +static int m10bmc_sec_bmc_image_load_1(struct m10bmc_sec *sec) > +{ > + return m10bmc_sec_bmc_image_load(sec, 1); > +} > + > +static struct image_load m10bmc_image_load_hndlrs[] = { > + { > + .name = "bmc_factory", > + .load_image = m10bmc_sec_bmc_image_load_1, > + }, > + { > + .name = "bmc_user", > + .load_image = m10bmc_sec_bmc_image_load_0, > + }, > + {} > +}; > + > static enum fw_upload_err rsu_check_idle(struct m10bmc_sec *sec) > { > u32 doorbell; > @@ -565,6 +669,7 @@ static int m10bmc_sec_probe(struct platform_device *pdev) > sec->dev = &pdev->dev; > sec->m10bmc = dev_get_drvdata(pdev->dev.parent); > dev_set_drvdata(&pdev->dev, sec); > + sec->image_load = m10bmc_image_load_hndlrs; > > ret = xa_alloc(&fw_upload_xa, &sec->fw_name_id, sec, > xa_limit_32b, GFP_KERNEL); > -- > 2.26.2 > > ^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v4 2/2] fpga: m10bmc-sec: add m10bmc_sec_retimer_load callback 2022-08-15 6:07 [PATCH v4 0/2] add Intel FPGA image reload support Tianfei Zhang 2022-08-15 6:07 ` [PATCH v4 1/2] fpga: m10bmc-sec: add sysfs to trigger FPGA/BMC images reload Tianfei Zhang @ 2022-08-15 6:07 ` Tianfei Zhang 2022-08-23 18:26 ` matthew.gerlach 1 sibling, 1 reply; 6+ messages in thread From: Tianfei Zhang @ 2022-08-15 6:07 UTC (permalink / raw) To: mdf, yilun.xu, linux-fpga, lee.jones, russell.h.weight Cc: hao.wu, trix, Tianfei Zhang From: Russ Weight <russell.h.weight@intel.com> Create m10bmc_sec_retimer_load() callback function to provide a trigger to update a new retimer (Intel C827 Ethernet transceiver) firmware on Intel PAC N3000 Card. Signed-off-by: Russ Weight <russell.h.weight@intel.com> Signed-off-by: Tianfei Zhang <tianfei.zhang@intel.com> --- v3: uses regmap_update_bits() API instead of m10bmc_sys_update_bits(). --- drivers/fpga/intel-m10-bmc-sec-update.c | 148 ++++++++++++++++++++++++ include/linux/mfd/intel-m10-bmc.h | 31 +++++ 2 files changed, 179 insertions(+) diff --git a/drivers/fpga/intel-m10-bmc-sec-update.c b/drivers/fpga/intel-m10-bmc-sec-update.c index 3a082911cf67..bef07e97c107 100644 --- a/drivers/fpga/intel-m10-bmc-sec-update.c +++ b/drivers/fpga/intel-m10-bmc-sec-update.c @@ -300,6 +300,150 @@ static int m10bmc_sec_bmc_image_load_1(struct m10bmc_sec *sec) return m10bmc_sec_bmc_image_load(sec, 1); } +static int trigger_retimer_eeprom_load(struct m10bmc_sec *sec) +{ + struct intel_m10bmc *m10bmc = sec->m10bmc; + unsigned int val; + int ret; + + ret = regmap_update_bits(m10bmc->regmap, + M10BMC_SYS_BASE + M10BMC_DOORBELL, + DRBL_PKVL_EEPROM_LOAD_SEC, + DRBL_PKVL_EEPROM_LOAD_SEC); + if (ret) + return ret; + + /* + * If the current NIOS FW supports this retimer update feature, then + * it will clear the same PKVL_EEPROM_LOAD bit in 2 seconds. Otherwise + * the driver needs to clear the PKVL_EEPROM_LOAD bit manually and + * return an error code. + */ + ret = regmap_read_poll_timeout(m10bmc->regmap, + M10BMC_SYS_BASE + M10BMC_DOORBELL, val, + (!(val & DRBL_PKVL_EEPROM_LOAD_SEC)), + M10BMC_PKVL_LOAD_INTERVAL_US, + M10BMC_PKVL_LOAD_TIMEOUT_US); + if (ret == -ETIMEDOUT) { + dev_err(sec->dev, "PKVL_EEPROM_LOAD clear timedout\n"); + regmap_update_bits(m10bmc->regmap, + M10BMC_SYS_BASE + M10BMC_DOORBELL, + DRBL_PKVL_EEPROM_LOAD_SEC, 0); + ret = -ENODEV; + } else if (ret) { + dev_err(sec->dev, "poll EEPROM_LOAD error %d\n", ret); + } + + return ret; +} + +static int poll_retimer_eeprom_load_done(struct m10bmc_sec *sec) +{ + struct intel_m10bmc *m10bmc = sec->m10bmc; + unsigned int doorbell; + int ret; + + /* + * RSU_STAT_PKVL_REJECT indicates that the current image is + * already programmed. RSU_PROG_PKVL_PROM_DONE that the firmware + * update process has finished, but does not necessarily indicate + * a successful update. + */ + ret = regmap_read_poll_timeout(m10bmc->regmap, + M10BMC_SYS_BASE + M10BMC_DOORBELL, + doorbell, + ((rsu_prog(doorbell) == + RSU_PROG_PKVL_PROM_DONE) || + (rsu_stat(doorbell) == + RSU_STAT_PKVL_REJECT)), + M10BMC_PKVL_PRELOAD_INTERVAL_US, + M10BMC_PKVL_PRELOAD_TIMEOUT_US); + if (ret) { + if (ret == -ETIMEDOUT) + dev_err(sec->dev, + "Doorbell check timedout: 0x%08x\n", doorbell); + else + dev_err(sec->dev, "poll Doorbell error\n"); + return ret; + } + + if (rsu_stat(doorbell) == RSU_STAT_PKVL_REJECT) { + dev_err(sec->dev, "duplicate image rejected\n"); + return -ECANCELED; + } + + return 0; +} + +static int poll_retimer_preload_done(struct m10bmc_sec *sec) +{ + struct intel_m10bmc *m10bmc = sec->m10bmc; + unsigned int val; + int ret; + + /* + * Wait for the updated firmware to be loaded by the PKVL device + * and confirm that the updated firmware is operational + */ + ret = regmap_read_poll_timeout(m10bmc->regmap, + M10BMC_SYS_BASE + M10BMC_PKVL_POLL_CTRL, val, + ((val & M10BMC_PKVL_PRELOAD) == M10BMC_PKVL_PRELOAD), + M10BMC_PKVL_PRELOAD_INTERVAL_US, + M10BMC_PKVL_PRELOAD_TIMEOUT_US); + if (ret) { + dev_err(sec->dev, "poll M10BMC_PKVL_PRELOAD error %d\n", ret); + return ret; + } + + if ((val & M10BMC_PKVL_UPG_STATUS_MASK) != M10BMC_PKVL_UPG_STATUS_GOOD) { + dev_err(sec->dev, "error detected during upgrade\n"); + return -EIO; + } + + return 0; +} + +static int retimer_check_idle(struct m10bmc_sec *sec) +{ + u32 doorbell; + int ret; + + ret = m10bmc_sys_read(sec->m10bmc, M10BMC_DOORBELL, &doorbell); + if (ret) + return -EIO; + + if (rsu_prog(doorbell) != RSU_PROG_IDLE && + rsu_prog(doorbell) != RSU_PROG_RSU_DONE && + rsu_prog(doorbell) != RSU_PROG_PKVL_PROM_DONE) { + log_error_regs(sec, doorbell); + return -EBUSY; + } + + return 0; +} + +static int m10bmc_sec_retimer_eeprom_load(struct m10bmc_sec *sec) +{ + int ret; + + ret = retimer_check_idle(sec); + if (ret) + goto exit; + + ret = trigger_retimer_eeprom_load(sec); + if (ret) + goto exit; + + ret = poll_retimer_eeprom_load_done(sec); + if (ret) + goto exit; + + ret = poll_retimer_preload_done(sec); + +exit: + return ret; +} + static struct image_load m10bmc_image_load_hndlrs[] = { { .name = "bmc_factory", @@ -309,6 +453,10 @@ static struct image_load m10bmc_image_load_hndlrs[] = { .name = "bmc_user", .load_image = m10bmc_sec_bmc_image_load_0, }, + { + .name = "retimer_fw", + .load_image = m10bmc_sec_retimer_eeprom_load, + }, {} }; diff --git a/include/linux/mfd/intel-m10-bmc.h b/include/linux/mfd/intel-m10-bmc.h index f0044b14136e..c06b9d3d1c5d 100644 --- a/include/linux/mfd/intel-m10-bmc.h +++ b/include/linux/mfd/intel-m10-bmc.h @@ -36,6 +36,37 @@ #define M10BMC_VER_PCB_INFO_MSK GENMASK(31, 24) #define M10BMC_VER_LEGACY_INVALID 0xffffffff +/* Retimer related registers, in system register region */ +#define M10BMC_PKVL_POLL_CTRL 0x80 +#define M10BMC_PKVL_A_PRELOAD BIT(16) +#define M10BMC_PKVL_A_PRELOAD_TO BIT(17) +#define M10BMC_PKVL_A_DATA_TOO_BIG BIT(18) +#define M10BMC_PKVL_A_HDR_CKSUM BIT(20) +#define M10BMC_PKVL_B_PRELOAD BIT(24) +#define M10BMC_PKVL_B_PRELOAD_TO BIT(25) +#define M10BMC_PKVL_B_DATA_TOO_BIG BIT(26) +#define M10BMC_PKVL_B_HDR_CKSUM BIT(28) + +#define M10BMC_PKVL_PRELOAD (M10BMC_PKVL_A_PRELOAD | M10BMC_PKVL_B_PRELOAD) +#define M10BMC_PKVL_PRELOAD_TIMEOUT (M10BMC_PKVL_A_PRELOAD_TO | \ + M10BMC_PKVL_B_PRELOAD_TO) +#define M10BMC_PKVL_DATA_TOO_BIG (M10BMC_PKVL_A_DATA_TOO_BIG | \ + M10BMC_PKVL_B_DATA_TOO_BIG) +#define M10BMC_PKVL_HDR_CHECKSUM (M10BMC_PKVL_A_HDR_CKSUM | \ + M10BMC_PKVL_B_HDR_CKSUM) + +#define M10BMC_PKVL_UPG_STATUS_MASK (M10BMC_PKVL_PRELOAD | M10BMC_PKVL_PRELOAD_TIMEOUT |\ + M10BMC_PKVL_DATA_TOO_BIG | M10BMC_PKVL_HDR_CHECKSUM) +#define M10BMC_PKVL_UPG_STATUS_GOOD (M10BMC_PKVL_PRELOAD | M10BMC_PKVL_HDR_CHECKSUM) + +/* interval 100ms and timeout 2s */ +#define M10BMC_PKVL_LOAD_INTERVAL_US (100 * 1000) +#define M10BMC_PKVL_LOAD_TIMEOUT_US (2 * 1000 * 1000) + +/* interval 100ms and timeout 30s */ +#define M10BMC_PKVL_PRELOAD_INTERVAL_US (100 * 1000) +#define M10BMC_PKVL_PRELOAD_TIMEOUT_US (30 * 1000 * 1000) + /* Secure update doorbell register, in system register region */ #define M10BMC_DOORBELL 0x400 -- 2.26.2 ^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH v4 2/2] fpga: m10bmc-sec: add m10bmc_sec_retimer_load callback 2022-08-15 6:07 ` [PATCH v4 2/2] fpga: m10bmc-sec: add m10bmc_sec_retimer_load callback Tianfei Zhang @ 2022-08-23 18:26 ` matthew.gerlach 2022-08-24 1:03 ` Zhang, Tianfei 0 siblings, 1 reply; 6+ messages in thread From: matthew.gerlach @ 2022-08-23 18:26 UTC (permalink / raw) To: Tianfei Zhang Cc: mdf, yilun.xu, linux-fpga, lee.jones, russell.h.weight, hao.wu, trix On Mon, 15 Aug 2022, Tianfei Zhang wrote: > From: Russ Weight <russell.h.weight@intel.com> > > Create m10bmc_sec_retimer_load() callback function > to provide a trigger to update a new retimer (Intel > C827 Ethernet transceiver) firmware on Intel PAC > N3000 Card. > > Signed-off-by: Russ Weight <russell.h.weight@intel.com> > Signed-off-by: Tianfei Zhang <tianfei.zhang@intel.com> Hi Tianfei, You forgot to add Acked-by: Lee Jones <lee@kernel.org>. Reviewed-by: Matthew Gerlach <matthew.gerlach@linux.intel.com> Looks good to me. > --- > v3: > uses regmap_update_bits() API instead of m10bmc_sys_update_bits(). > --- > drivers/fpga/intel-m10-bmc-sec-update.c | 148 ++++++++++++++++++++++++ > include/linux/mfd/intel-m10-bmc.h | 31 +++++ > 2 files changed, 179 insertions(+) > > diff --git a/drivers/fpga/intel-m10-bmc-sec-update.c b/drivers/fpga/intel-m10-bmc-sec-update.c > index 3a082911cf67..bef07e97c107 100644 > --- a/drivers/fpga/intel-m10-bmc-sec-update.c > +++ b/drivers/fpga/intel-m10-bmc-sec-update.c > @@ -300,6 +300,150 @@ static int m10bmc_sec_bmc_image_load_1(struct m10bmc_sec *sec) > return m10bmc_sec_bmc_image_load(sec, 1); > } > > +static int trigger_retimer_eeprom_load(struct m10bmc_sec *sec) > +{ > + struct intel_m10bmc *m10bmc = sec->m10bmc; > + unsigned int val; > + int ret; > + > + ret = regmap_update_bits(m10bmc->regmap, > + M10BMC_SYS_BASE + M10BMC_DOORBELL, > + DRBL_PKVL_EEPROM_LOAD_SEC, > + DRBL_PKVL_EEPROM_LOAD_SEC); > + if (ret) > + return ret; > + > + /* > + * If the current NIOS FW supports this retimer update feature, then > + * it will clear the same PKVL_EEPROM_LOAD bit in 2 seconds. Otherwise > + * the driver needs to clear the PKVL_EEPROM_LOAD bit manually and > + * return an error code. > + */ > + ret = regmap_read_poll_timeout(m10bmc->regmap, > + M10BMC_SYS_BASE + M10BMC_DOORBELL, val, > + (!(val & DRBL_PKVL_EEPROM_LOAD_SEC)), > + M10BMC_PKVL_LOAD_INTERVAL_US, > + M10BMC_PKVL_LOAD_TIMEOUT_US); > + if (ret == -ETIMEDOUT) { > + dev_err(sec->dev, "PKVL_EEPROM_LOAD clear timedout\n"); > + regmap_update_bits(m10bmc->regmap, > + M10BMC_SYS_BASE + M10BMC_DOORBELL, > + DRBL_PKVL_EEPROM_LOAD_SEC, 0); > + ret = -ENODEV; > + } else if (ret) { > + dev_err(sec->dev, "poll EEPROM_LOAD error %d\n", ret); > + } > + > + return ret; > +} > + > +static int poll_retimer_eeprom_load_done(struct m10bmc_sec *sec) > +{ > + struct intel_m10bmc *m10bmc = sec->m10bmc; > + unsigned int doorbell; > + int ret; > + > + /* > + * RSU_STAT_PKVL_REJECT indicates that the current image is > + * already programmed. RSU_PROG_PKVL_PROM_DONE that the firmware > + * update process has finished, but does not necessarily indicate > + * a successful update. > + */ > + ret = regmap_read_poll_timeout(m10bmc->regmap, > + M10BMC_SYS_BASE + M10BMC_DOORBELL, > + doorbell, > + ((rsu_prog(doorbell) == > + RSU_PROG_PKVL_PROM_DONE) || > + (rsu_stat(doorbell) == > + RSU_STAT_PKVL_REJECT)), > + M10BMC_PKVL_PRELOAD_INTERVAL_US, > + M10BMC_PKVL_PRELOAD_TIMEOUT_US); > + if (ret) { > + if (ret == -ETIMEDOUT) > + dev_err(sec->dev, > + "Doorbell check timedout: 0x%08x\n", doorbell); > + else > + dev_err(sec->dev, "poll Doorbell error\n"); > + return ret; > + } > + > + if (rsu_stat(doorbell) == RSU_STAT_PKVL_REJECT) { > + dev_err(sec->dev, "duplicate image rejected\n"); > + return -ECANCELED; > + } > + > + return 0; > +} > + > +static int poll_retimer_preload_done(struct m10bmc_sec *sec) > +{ > + struct intel_m10bmc *m10bmc = sec->m10bmc; > + unsigned int val; > + int ret; > + > + /* > + * Wait for the updated firmware to be loaded by the PKVL device > + * and confirm that the updated firmware is operational > + */ > + ret = regmap_read_poll_timeout(m10bmc->regmap, > + M10BMC_SYS_BASE + M10BMC_PKVL_POLL_CTRL, val, > + ((val & M10BMC_PKVL_PRELOAD) == M10BMC_PKVL_PRELOAD), > + M10BMC_PKVL_PRELOAD_INTERVAL_US, > + M10BMC_PKVL_PRELOAD_TIMEOUT_US); > + if (ret) { > + dev_err(sec->dev, "poll M10BMC_PKVL_PRELOAD error %d\n", ret); > + return ret; > + } > + > + if ((val & M10BMC_PKVL_UPG_STATUS_MASK) != M10BMC_PKVL_UPG_STATUS_GOOD) { > + dev_err(sec->dev, "error detected during upgrade\n"); > + return -EIO; > + } > + > + return 0; > +} > + > +static int retimer_check_idle(struct m10bmc_sec *sec) > +{ > + u32 doorbell; > + int ret; > + > + ret = m10bmc_sys_read(sec->m10bmc, M10BMC_DOORBELL, &doorbell); > + if (ret) > + return -EIO; > + > + if (rsu_prog(doorbell) != RSU_PROG_IDLE && > + rsu_prog(doorbell) != RSU_PROG_RSU_DONE && > + rsu_prog(doorbell) != RSU_PROG_PKVL_PROM_DONE) { > + log_error_regs(sec, doorbell); > + return -EBUSY; > + } > + > + return 0; > +} > + > +static int m10bmc_sec_retimer_eeprom_load(struct m10bmc_sec *sec) > +{ > + int ret; > + > + ret = retimer_check_idle(sec); > + if (ret) > + goto exit; > + > + ret = trigger_retimer_eeprom_load(sec); > + if (ret) > + goto exit; > + > + ret = poll_retimer_eeprom_load_done(sec); > + if (ret) > + goto exit; > + > + ret = poll_retimer_preload_done(sec); > + > +exit: > + return ret; > +} > + > static struct image_load m10bmc_image_load_hndlrs[] = { > { > .name = "bmc_factory", > @@ -309,6 +453,10 @@ static struct image_load m10bmc_image_load_hndlrs[] = { > .name = "bmc_user", > .load_image = m10bmc_sec_bmc_image_load_0, > }, > + { > + .name = "retimer_fw", > + .load_image = m10bmc_sec_retimer_eeprom_load, > + }, > {} > }; > > diff --git a/include/linux/mfd/intel-m10-bmc.h b/include/linux/mfd/intel-m10-bmc.h > index f0044b14136e..c06b9d3d1c5d 100644 > --- a/include/linux/mfd/intel-m10-bmc.h > +++ b/include/linux/mfd/intel-m10-bmc.h > @@ -36,6 +36,37 @@ > #define M10BMC_VER_PCB_INFO_MSK GENMASK(31, 24) > #define M10BMC_VER_LEGACY_INVALID 0xffffffff > > +/* Retimer related registers, in system register region */ > +#define M10BMC_PKVL_POLL_CTRL 0x80 > +#define M10BMC_PKVL_A_PRELOAD BIT(16) > +#define M10BMC_PKVL_A_PRELOAD_TO BIT(17) > +#define M10BMC_PKVL_A_DATA_TOO_BIG BIT(18) > +#define M10BMC_PKVL_A_HDR_CKSUM BIT(20) > +#define M10BMC_PKVL_B_PRELOAD BIT(24) > +#define M10BMC_PKVL_B_PRELOAD_TO BIT(25) > +#define M10BMC_PKVL_B_DATA_TOO_BIG BIT(26) > +#define M10BMC_PKVL_B_HDR_CKSUM BIT(28) > + > +#define M10BMC_PKVL_PRELOAD (M10BMC_PKVL_A_PRELOAD | M10BMC_PKVL_B_PRELOAD) > +#define M10BMC_PKVL_PRELOAD_TIMEOUT (M10BMC_PKVL_A_PRELOAD_TO | \ > + M10BMC_PKVL_B_PRELOAD_TO) > +#define M10BMC_PKVL_DATA_TOO_BIG (M10BMC_PKVL_A_DATA_TOO_BIG | \ > + M10BMC_PKVL_B_DATA_TOO_BIG) > +#define M10BMC_PKVL_HDR_CHECKSUM (M10BMC_PKVL_A_HDR_CKSUM | \ > + M10BMC_PKVL_B_HDR_CKSUM) > + > +#define M10BMC_PKVL_UPG_STATUS_MASK (M10BMC_PKVL_PRELOAD | M10BMC_PKVL_PRELOAD_TIMEOUT |\ > + M10BMC_PKVL_DATA_TOO_BIG | M10BMC_PKVL_HDR_CHECKSUM) > +#define M10BMC_PKVL_UPG_STATUS_GOOD (M10BMC_PKVL_PRELOAD | M10BMC_PKVL_HDR_CHECKSUM) > + > +/* interval 100ms and timeout 2s */ > +#define M10BMC_PKVL_LOAD_INTERVAL_US (100 * 1000) > +#define M10BMC_PKVL_LOAD_TIMEOUT_US (2 * 1000 * 1000) > + > +/* interval 100ms and timeout 30s */ > +#define M10BMC_PKVL_PRELOAD_INTERVAL_US (100 * 1000) > +#define M10BMC_PKVL_PRELOAD_TIMEOUT_US (30 * 1000 * 1000) > + > /* Secure update doorbell register, in system register region */ > #define M10BMC_DOORBELL 0x400 > > -- > 2.26.2 > > ^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: [PATCH v4 2/2] fpga: m10bmc-sec: add m10bmc_sec_retimer_load callback 2022-08-23 18:26 ` matthew.gerlach @ 2022-08-24 1:03 ` Zhang, Tianfei 0 siblings, 0 replies; 6+ messages in thread From: Zhang, Tianfei @ 2022-08-24 1:03 UTC (permalink / raw) To: matthew.gerlach@linux.intel.com Cc: mdf@kernel.org, Xu, Yilun, linux-fpga@vger.kernel.org, lee.jones@linaro.org, Weight, Russell H, Wu, Hao, trix@redhat.com > -----Original Message----- > From: matthew.gerlach@linux.intel.com <matthew.gerlach@linux.intel.com> > Sent: Wednesday, August 24, 2022 2:27 AM > To: Zhang, Tianfei <tianfei.zhang@intel.com> > Cc: mdf@kernel.org; Xu, Yilun <yilun.xu@intel.com>; linux-fpga@vger.kernel.org; > lee.jones@linaro.org; Weight, Russell H <russell.h.weight@intel.com>; Wu, Hao > <hao.wu@intel.com>; trix@redhat.com > Subject: Re: [PATCH v4 2/2] fpga: m10bmc-sec: add m10bmc_sec_retimer_load > callback > > > > On Mon, 15 Aug 2022, Tianfei Zhang wrote: > > > From: Russ Weight <russell.h.weight@intel.com> > > > > Create m10bmc_sec_retimer_load() callback function to provide a > > trigger to update a new retimer (Intel > > C827 Ethernet transceiver) firmware on Intel PAC > > N3000 Card. > > > > Signed-off-by: Russ Weight <russell.h.weight@intel.com> > > Signed-off-by: Tianfei Zhang <tianfei.zhang@intel.com> > > Hi Tianfei, > > You forgot to add Acked-by: Lee Jones <lee@kernel.org>. I think Lee Jones just acked by other patch (in PMCI pachset) not this patchset. https://patchwork.kernel.org/project/linux-fpga/patch/20220617020405.128352-2-tianfei.zhang@intel.com/ In this patchset, Lee Jones suggested that use regmap API directly and don't need a simple wrapper. https://patchwork.kernel.org/project/linux-fpga/patch/20220725092836.647028-2-tianfei.zhang@intel.com/ > > Reviewed-by: Matthew Gerlach <matthew.gerlach@linux.intel.com> Thanks Matthew. > > Looks good to me. > > --- > > v3: > > uses regmap_update_bits() API instead of m10bmc_sys_update_bits(). > > --- > > drivers/fpga/intel-m10-bmc-sec-update.c | 148 ++++++++++++++++++++++++ > > include/linux/mfd/intel-m10-bmc.h | 31 +++++ > > 2 files changed, 179 insertions(+) > > > > diff --git a/drivers/fpga/intel-m10-bmc-sec-update.c > > b/drivers/fpga/intel-m10-bmc-sec-update.c > > index 3a082911cf67..bef07e97c107 100644 > > --- a/drivers/fpga/intel-m10-bmc-sec-update.c > > +++ b/drivers/fpga/intel-m10-bmc-sec-update.c > > @@ -300,6 +300,150 @@ static int m10bmc_sec_bmc_image_load_1(struct > m10bmc_sec *sec) > > return m10bmc_sec_bmc_image_load(sec, 1); } > > > > +static int trigger_retimer_eeprom_load(struct m10bmc_sec *sec) { > > + struct intel_m10bmc *m10bmc = sec->m10bmc; > > + unsigned int val; > > + int ret; > > + > > + ret = regmap_update_bits(m10bmc->regmap, > > + M10BMC_SYS_BASE + M10BMC_DOORBELL, > > + DRBL_PKVL_EEPROM_LOAD_SEC, > > + DRBL_PKVL_EEPROM_LOAD_SEC); > > + if (ret) > > + return ret; > > + > > + /* > > + * If the current NIOS FW supports this retimer update feature, then > > + * it will clear the same PKVL_EEPROM_LOAD bit in 2 seconds. Otherwise > > + * the driver needs to clear the PKVL_EEPROM_LOAD bit manually and > > + * return an error code. > > + */ > > + ret = regmap_read_poll_timeout(m10bmc->regmap, > > + M10BMC_SYS_BASE + M10BMC_DOORBELL, > val, > > + (!(val & DRBL_PKVL_EEPROM_LOAD_SEC)), > > + M10BMC_PKVL_LOAD_INTERVAL_US, > > + M10BMC_PKVL_LOAD_TIMEOUT_US); > > + if (ret == -ETIMEDOUT) { > > + dev_err(sec->dev, "PKVL_EEPROM_LOAD clear timedout\n"); > > + regmap_update_bits(m10bmc->regmap, > > + M10BMC_SYS_BASE + M10BMC_DOORBELL, > > + DRBL_PKVL_EEPROM_LOAD_SEC, 0); > > + ret = -ENODEV; > > + } else if (ret) { > > + dev_err(sec->dev, "poll EEPROM_LOAD error %d\n", ret); > > + } > > + > > + return ret; > > +} > > + > > +static int poll_retimer_eeprom_load_done(struct m10bmc_sec *sec) { > > + struct intel_m10bmc *m10bmc = sec->m10bmc; > > + unsigned int doorbell; > > + int ret; > > + > > + /* > > + * RSU_STAT_PKVL_REJECT indicates that the current image is > > + * already programmed. RSU_PROG_PKVL_PROM_DONE that the firmware > > + * update process has finished, but does not necessarily indicate > > + * a successful update. > > + */ > > + ret = regmap_read_poll_timeout(m10bmc->regmap, > > + M10BMC_SYS_BASE + M10BMC_DOORBELL, > > + doorbell, > > + ((rsu_prog(doorbell) == > > + RSU_PROG_PKVL_PROM_DONE) || > > + (rsu_stat(doorbell) == > > + RSU_STAT_PKVL_REJECT)), > > + M10BMC_PKVL_PRELOAD_INTERVAL_US, > > + M10BMC_PKVL_PRELOAD_TIMEOUT_US); > > + if (ret) { > > + if (ret == -ETIMEDOUT) > > + dev_err(sec->dev, > > + "Doorbell check timedout: 0x%08x\n", doorbell); > > + else > > + dev_err(sec->dev, "poll Doorbell error\n"); > > + return ret; > > + } > > + > > + if (rsu_stat(doorbell) == RSU_STAT_PKVL_REJECT) { > > + dev_err(sec->dev, "duplicate image rejected\n"); > > + return -ECANCELED; > > + } > > + > > + return 0; > > +} > > + > > +static int poll_retimer_preload_done(struct m10bmc_sec *sec) { > > + struct intel_m10bmc *m10bmc = sec->m10bmc; > > + unsigned int val; > > + int ret; > > + > > + /* > > + * Wait for the updated firmware to be loaded by the PKVL device > > + * and confirm that the updated firmware is operational > > + */ > > + ret = regmap_read_poll_timeout(m10bmc->regmap, > > + M10BMC_SYS_BASE + > M10BMC_PKVL_POLL_CTRL, val, > > + ((val & M10BMC_PKVL_PRELOAD) == > M10BMC_PKVL_PRELOAD), > > + M10BMC_PKVL_PRELOAD_INTERVAL_US, > > + M10BMC_PKVL_PRELOAD_TIMEOUT_US); > > + if (ret) { > > + dev_err(sec->dev, "poll M10BMC_PKVL_PRELOAD error %d\n", ret); > > + return ret; > > + } > > + > > + if ((val & M10BMC_PKVL_UPG_STATUS_MASK) != > M10BMC_PKVL_UPG_STATUS_GOOD) { > > + dev_err(sec->dev, "error detected during upgrade\n"); > > + return -EIO; > > + } > > + > > + return 0; > > +} > > + > > +static int retimer_check_idle(struct m10bmc_sec *sec) { > > + u32 doorbell; > > + int ret; > > + > > + ret = m10bmc_sys_read(sec->m10bmc, M10BMC_DOORBELL, &doorbell); > > + if (ret) > > + return -EIO; > > + > > + if (rsu_prog(doorbell) != RSU_PROG_IDLE && > > + rsu_prog(doorbell) != RSU_PROG_RSU_DONE && > > + rsu_prog(doorbell) != RSU_PROG_PKVL_PROM_DONE) { > > + log_error_regs(sec, doorbell); > > + return -EBUSY; > > + } > > + > > + return 0; > > +} > > + > > +static int m10bmc_sec_retimer_eeprom_load(struct m10bmc_sec *sec) { > > + int ret; > > + > > + ret = retimer_check_idle(sec); > > + if (ret) > > + goto exit; > > + > > + ret = trigger_retimer_eeprom_load(sec); > > + if (ret) > > + goto exit; > > + > > + ret = poll_retimer_eeprom_load_done(sec); > > + if (ret) > > + goto exit; > > + > > + ret = poll_retimer_preload_done(sec); > > + > > +exit: > > + return ret; > > +} > > + > > static struct image_load m10bmc_image_load_hndlrs[] = { > > { > > .name = "bmc_factory", > > @@ -309,6 +453,10 @@ static struct image_load m10bmc_image_load_hndlrs[] = > { > > .name = "bmc_user", > > .load_image = m10bmc_sec_bmc_image_load_0, > > }, > > + { > > + .name = "retimer_fw", > > + .load_image = m10bmc_sec_retimer_eeprom_load, > > + }, > > {} > > }; > > > > diff --git a/include/linux/mfd/intel-m10-bmc.h > > b/include/linux/mfd/intel-m10-bmc.h > > index f0044b14136e..c06b9d3d1c5d 100644 > > --- a/include/linux/mfd/intel-m10-bmc.h > > +++ b/include/linux/mfd/intel-m10-bmc.h > > @@ -36,6 +36,37 @@ > > #define M10BMC_VER_PCB_INFO_MSK GENMASK(31, 24) > > #define M10BMC_VER_LEGACY_INVALID 0xffffffff > > > > +/* Retimer related registers, in system register region */ > > +#define M10BMC_PKVL_POLL_CTRL 0x80 > > +#define M10BMC_PKVL_A_PRELOAD BIT(16) > > +#define M10BMC_PKVL_A_PRELOAD_TO BIT(17) > > +#define M10BMC_PKVL_A_DATA_TOO_BIG BIT(18) > > +#define M10BMC_PKVL_A_HDR_CKSUM BIT(20) > > +#define M10BMC_PKVL_B_PRELOAD BIT(24) > > +#define M10BMC_PKVL_B_PRELOAD_TO BIT(25) > > +#define M10BMC_PKVL_B_DATA_TOO_BIG BIT(26) > > +#define M10BMC_PKVL_B_HDR_CKSUM BIT(28) > > + > > +#define M10BMC_PKVL_PRELOAD (M10BMC_PKVL_A_PRELOAD | > M10BMC_PKVL_B_PRELOAD) > > +#define M10BMC_PKVL_PRELOAD_TIMEOUT (M10BMC_PKVL_A_PRELOAD_TO | > \ > > + M10BMC_PKVL_B_PRELOAD_TO) > > +#define M10BMC_PKVL_DATA_TOO_BIG > (M10BMC_PKVL_A_DATA_TOO_BIG | \ > > + M10BMC_PKVL_B_DATA_TOO_BIG) > > +#define M10BMC_PKVL_HDR_CHECKSUM (M10BMC_PKVL_A_HDR_CKSUM | > \ > > + M10BMC_PKVL_B_HDR_CKSUM) > > + > > +#define M10BMC_PKVL_UPG_STATUS_MASK (M10BMC_PKVL_PRELOAD | > M10BMC_PKVL_PRELOAD_TIMEOUT |\ > > + M10BMC_PKVL_DATA_TOO_BIG | > M10BMC_PKVL_HDR_CHECKSUM) > > +#define M10BMC_PKVL_UPG_STATUS_GOOD (M10BMC_PKVL_PRELOAD | > M10BMC_PKVL_HDR_CHECKSUM) > > + > > +/* interval 100ms and timeout 2s */ > > +#define M10BMC_PKVL_LOAD_INTERVAL_US (100 * 1000) > > +#define M10BMC_PKVL_LOAD_TIMEOUT_US (2 * 1000 * 1000) > > + > > +/* interval 100ms and timeout 30s */ > > +#define M10BMC_PKVL_PRELOAD_INTERVAL_US (100 * 1000) > > +#define M10BMC_PKVL_PRELOAD_TIMEOUT_US (30 * 1000 * 1000) > > + > > /* Secure update doorbell register, in system register region */ > > #define M10BMC_DOORBELL 0x400 > > > > -- > > 2.26.2 > > > > ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2022-08-24 1:05 UTC | newest] Thread overview: 6+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2022-08-15 6:07 [PATCH v4 0/2] add Intel FPGA image reload support Tianfei Zhang 2022-08-15 6:07 ` [PATCH v4 1/2] fpga: m10bmc-sec: add sysfs to trigger FPGA/BMC images reload Tianfei Zhang 2022-08-23 18:19 ` matthew.gerlach 2022-08-15 6:07 ` [PATCH v4 2/2] fpga: m10bmc-sec: add m10bmc_sec_retimer_load callback Tianfei Zhang 2022-08-23 18:26 ` matthew.gerlach 2022-08-24 1:03 ` Zhang, Tianfei
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