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firmware: stratix10-rsu: extend rsu driver for new features

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Extend Intel Remote System Update (RSU) driver to get decision
configuration management firmware (DCMF) versions and max retry
parameter value.

Signed-off-by: Richard Gong <richard.gong@intel.com>
Link: https://lore.kernel.org/r/1592231348-31334-4-git-send-email-richard.gong@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Richard Gong 2020-06-15 09:29:07 -05:00 committed by Greg Kroah-Hartman
parent bf0e5bf68a
commit 75bc73fc01
1 changed files with 161 additions and 5 deletions
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166
drivers/firmware/stratix10-rsu.c
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@ -20,10 +20,16 @@
#define RSU_VERSION_MASK GENMASK_ULL(63, 32)
#define RSU_ERROR_LOCATION_MASK GENMASK_ULL(31, 0)
#define RSU_ERROR_DETAIL_MASK GENMASK_ULL(63, 32)
#define RSU_DCMF0_MASK GENMASK_ULL(31, 0)
#define RSU_DCMF1_MASK GENMASK_ULL(63, 32)
#define RSU_DCMF2_MASK GENMASK_ULL(31, 0)
#define RSU_DCMF3_MASK GENMASK_ULL(63, 32)
#define RSU_TIMEOUT (msecs_to_jiffies(SVC_RSU_REQUEST_TIMEOUT_MS))
#define INVALID_RETRY_COUNTER 0xFFFFFFFF
#define INVALID_RETRY_COUNTER 0xFF
#define INVALID_DCMF_VERSION 0xFF
typedef void (*rsu_callback)(struct stratix10_svc_client *client,
struct stratix10_svc_cb_data *data);
@ -35,11 +41,16 @@ typedef void (*rsu_callback)(struct stratix10_svc_client *client,
* @lock: a mutex to protect callback completion state
* @status.current_image: address of image currently running in flash
* @status.fail_image: address of failed image in flash
* @status.version: the version number of RSU firmware
* @status.version: the interface version number of RSU firmware
* @status.state: the state of RSU system
* @status.error_details: error code
* @status.error_location: the error offset inside the image that failed
* @dcmf_version.dcmf0: Quartus dcmf0 version
* @dcmf_version.dcmf1: Quartus dcmf1 version
* @dcmf_version.dcmf2: Quartus dcmf2 version
* @dcmf_version.dcmf3: Quartus dcmf3 version
* @retry_counter: the current image's retry counter
* @max_retry: the preset max retry value
*/
struct stratix10_rsu_priv {
struct stratix10_svc_chan *chan;
@ -54,7 +65,16 @@ struct stratix10_rsu_priv {
unsigned int error_details;
unsigned int error_location;
} status;
struct {
unsigned int dcmf0;
unsigned int dcmf1;
unsigned int dcmf2;
unsigned int dcmf3;
} dcmf_version;
unsigned int retry_counter;
unsigned int max_retry;
};
/**
@ -109,7 +129,7 @@ static void rsu_command_callback(struct stratix10_svc_client *client,
struct stratix10_rsu_priv *priv = client->priv;
if (data->status == BIT(SVC_STATUS_NO_SUPPORT))
dev_warn(client->dev, "Secure FW doesn't support notify\n");
dev_warn(client->dev, "FW doesn't support notify\n");
else if (data->status == BIT(SVC_STATUS_ERROR))
dev_err(client->dev, "Failure, returned status is %lu\n",
BIT(data->status));
@ -119,7 +139,7 @@ static void rsu_command_callback(struct stratix10_svc_client *client,
/**
* rsu_retry_callback() - Callback from Intel service layer for getting
* the current image's retry counter from firmware
* the current image's retry counter from the firmware
* @client: pointer to client
* @data: pointer to callback data structure
*
@ -136,7 +156,7 @@ static void rsu_retry_callback(struct stratix10_svc_client *client,
if (data->status == BIT(SVC_STATUS_OK))
priv->retry_counter = *counter;
else if (data->status == BIT(SVC_STATUS_NO_SUPPORT))
dev_warn(client->dev, "Secure FW doesn't support retry\n");
dev_warn(client->dev, "FW doesn't support retry\n");
else
dev_err(client->dev, "Failed to get retry counter %lu\n",
BIT(data->status));
@ -144,6 +164,57 @@ static void rsu_retry_callback(struct stratix10_svc_client *client,
complete(&priv->completion);
}
/**
* rsu_max_retry_callback() - Callback from Intel service layer for getting
* the max retry value from the firmware
* @client: pointer to client
* @data: pointer to callback data structure
*
* Callback from Intel service layer for max retry.
*/
static void rsu_max_retry_callback(struct stratix10_svc_client *client,
struct stratix10_svc_cb_data *data)
{
struct stratix10_rsu_priv *priv = client->priv;
unsigned int *max_retry = (unsigned int *)data->kaddr1;
if (data->status == BIT(SVC_STATUS_OK))
priv->max_retry = *max_retry;
else if (data->status == BIT(SVC_STATUS_NO_SUPPORT))
dev_warn(client->dev, "FW doesn't support max retry\n");
else
dev_err(client->dev, "Failed to get max retry %lu\n",
BIT(data->status));
complete(&priv->completion);
}
/**
* rsu_dcmf_version_callback() - Callback from Intel service layer for getting
* the DCMF version
* @client: pointer to client
* @data: pointer to callback data structure
*
* Callback from Intel service layer for DCMF version number
*/
static void rsu_dcmf_version_callback(struct stratix10_svc_client *client,
struct stratix10_svc_cb_data *data)
{
struct stratix10_rsu_priv *priv = client->priv;
unsigned long long *value1 = (unsigned long long *)data->kaddr1;
unsigned long long *value2 = (unsigned long long *)data->kaddr2;
if (data->status == BIT(SVC_STATUS_OK)) {
priv->dcmf_version.dcmf0 = FIELD_GET(RSU_DCMF0_MASK, *value1);
priv->dcmf_version.dcmf1 = FIELD_GET(RSU_DCMF1_MASK, *value1);
priv->dcmf_version.dcmf2 = FIELD_GET(RSU_DCMF2_MASK, *value2);
priv->dcmf_version.dcmf3 = FIELD_GET(RSU_DCMF3_MASK, *value2);
} else
dev_err(client->dev, "failed to get DCMF version\n");
complete(&priv->completion);
}
/**
* rsu_send_msg() - send a message to Intel service layer
* @priv: pointer to rsu private data
@ -282,6 +353,61 @@ static ssize_t retry_counter_show(struct device *dev,
return sprintf(buf, "0x%08x\n", priv->retry_counter);
}
static ssize_t max_retry_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
return sprintf(buf, "0x%08x\n", priv->max_retry);
}
static ssize_t dcmf0_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
return sprintf(buf, "0x%08x\n", priv->dcmf_version.dcmf0);
}
static ssize_t dcmf1_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
return sprintf(buf, "0x%08x\n", priv->dcmf_version.dcmf1);
}
static ssize_t dcmf2_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
return sprintf(buf, "0x%08x\n", priv->dcmf_version.dcmf2);
}
static ssize_t dcmf3_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
return sprintf(buf, "0x%08x\n", priv->dcmf_version.dcmf3);
}
static ssize_t reboot_image_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
@ -353,6 +479,11 @@ static DEVICE_ATTR_RO(version);
static DEVICE_ATTR_RO(error_location);
static DEVICE_ATTR_RO(error_details);
static DEVICE_ATTR_RO(retry_counter);
static DEVICE_ATTR_RO(max_retry);
static DEVICE_ATTR_RO(dcmf0);
static DEVICE_ATTR_RO(dcmf1);
static DEVICE_ATTR_RO(dcmf2);
static DEVICE_ATTR_RO(dcmf3);
static DEVICE_ATTR_WO(reboot_image);
static DEVICE_ATTR_WO(notify);
@ -364,6 +495,11 @@ static struct attribute *rsu_attrs[] = {
&dev_attr_error_location.attr,
&dev_attr_error_details.attr,
&dev_attr_retry_counter.attr,
&dev_attr_max_retry.attr,
&dev_attr_dcmf0.attr,
&dev_attr_dcmf1.attr,
&dev_attr_dcmf2.attr,
&dev_attr_dcmf3.attr,
&dev_attr_reboot_image.attr,
&dev_attr_notify.attr,
NULL
@ -391,6 +527,11 @@ static int stratix10_rsu_probe(struct platform_device *pdev)
priv->status.version = 0;
priv->status.state = 0;
priv->retry_counter = INVALID_RETRY_COUNTER;
priv->dcmf_version.dcmf0 = INVALID_DCMF_VERSION;
priv->dcmf_version.dcmf1 = INVALID_DCMF_VERSION;
priv->dcmf_version.dcmf2 = INVALID_DCMF_VERSION;
priv->dcmf_version.dcmf3 = INVALID_DCMF_VERSION;
priv->max_retry = INVALID_RETRY_COUNTER;
mutex_init(&priv->lock);
priv->chan = stratix10_svc_request_channel_byname(&priv->client,
@ -412,12 +553,27 @@ static int stratix10_rsu_probe(struct platform_device *pdev)
stratix10_svc_free_channel(priv->chan);
}
/* get DCMF version from firmware */
ret = rsu_send_msg(priv, COMMAND_RSU_DCMF_VERSION,
0, rsu_dcmf_version_callback);
if (ret) {
dev_err(dev, "Error, getting DCMF version %i\n", ret);
stratix10_svc_free_channel(priv->chan);
}
ret = rsu_send_msg(priv, COMMAND_RSU_RETRY, 0, rsu_retry_callback);
if (ret) {
dev_err(dev, "Error, getting RSU retry %i\n", ret);
stratix10_svc_free_channel(priv->chan);
}
ret = rsu_send_msg(priv, COMMAND_RSU_MAX_RETRY, 0,
rsu_max_retry_callback);
if (ret) {
dev_err(dev, "Error, getting RSU max retry %i\n", ret);
stratix10_svc_free_channel(priv->chan);
}
return ret;
}