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nvethernet: Add PCS BASE-R FEC sysfs

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Adding PCS BASE-R FEC setting using sysfs node

Bug 4674473

Change-Id: I8f65d66f928c8288218bd404390e9b8117eaef15
Signed-off-by: Mahesh Patil <maheshp@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3201972
Reviewed-by: Nagaraj Annaiah <nannaiah@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Srinivas Ramachandran <srinivasra@nvidia.com>
This commit is contained in:
Mahesh Patil
2024-08-26 15:53:26 -07:00
committed by Jon Hunter
parent 4c71b3d40d
commit 0cca8547a9
1 changed files with 72 additions and 0 deletions
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72
drivers/net/ethernet/nvidia/nvethernet/sysfs.c
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@@ -156,6 +156,77 @@ static DEVICE_ATTR(mac_tx_q, (S_IRUGO | S_IWUSR),
ether_mac_tx_q_store);
#endif /* OSI_DEBUG */
/**
* @brief Shows the current setting of PCS BASE-R FEC enabled
*
* Algorithm: Display the current PCS BASE-R FEC enabled.
*
* @param[in] dev: Device data.
* @param[in] attr: Device attribute
* @param[in] buf: Buffer to store the current PCS BASE-R FEC setting
*/
static ssize_t ether_mac_base_r_fec_enable_show(
struct device *dev,
struct device_attribute *attr, char *buf)
{
struct net_device *ndev = (struct net_device *)dev_get_drvdata(dev);
struct ether_priv_data *pdata = netdev_priv(ndev);
struct osi_core_priv_data *osi_core = pdata->osi_core;
return scnprintf(buf, PAGE_SIZE, "%s\n",
(osi_core->pcs_base_r_fec_en == OSI_ENABLE) ?
"enabled" : "disabled");
}
/**
* @brief Set the PCS BASE-R FEC enabled
*
* Algorithm: This is used to set the PCS BASE-R FEC enabled.
*
* @param[in] dev: Device data.
* @param[in] attr: Device attribute
* @param[in] buf: Buffer which contains the user settings of PCS BASE-R FEC
* @param[in] size: size of buffer
*
* @return size of buffer.
*/
static ssize_t ether_mac_base_r_fec_enable_store(
struct device *dev,
struct device_attribute *attr,
const char *buf, size_t size)
{
struct net_device *ndev = (struct net_device *)dev_get_drvdata(dev);
struct ether_priv_data *pdata = netdev_priv(ndev);
struct osi_core_priv_data *osi_core = pdata->osi_core;
/* Interface is up so base-r fec change not allowed */
if (netif_running(ndev)) {
dev_err(pdata->dev, "Not Allowed. Ether interface is up\n");
return size;
}
if (strncmp(buf, "enable", 6) == 0U) {
osi_core->pcs_base_r_fec_en = OSI_ENABLE;
dev_info(pdata->dev, "Enabling PCS BASE-R FEC\n");
} else if (strncmp(buf, "disable", 7) == 0U) {
osi_core->pcs_base_r_fec_en = OSI_DISABLE;
dev_info(pdata->dev, "Disabling PCS BASE-R FEC\n");
} else {
dev_err(pdata->dev,
"Invalid entry. Valid Entries are enable or disable\n");
}
return size;
}
/**
* @brief Sysfs attribute for BASE-R FEC enable
*
*/
static DEVICE_ATTR(pcs_baser_fec, (S_IRUGO | S_IWUSR),
ether_mac_base_r_fec_enable_show,
ether_mac_base_r_fec_enable_store);
/**
* @brief Shows the current setting of MAC loopback
*
@@ -3295,6 +3366,7 @@ static struct attribute *ether_sysfs_attrs[] = {
&dev_attr_desc_dump_enable.attr,
#endif /* OSI_DEBUG */
&dev_attr_mac_loopback.attr,
&dev_attr_pcs_baser_fec.attr,
&dev_attr_ptp_mode.attr,
&dev_attr_ptp_sync.attr,
&dev_attr_frp.attr,