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nvethernet: Add FRP command IOCTL support

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Add new private IOCTL to perform
Flexible Receive Parser table entry
add, delete, and update operations
using OSI API call.

Bug 200565623

Change-Id: I00f2be1aaa6ee737de5154085be0521db0bb9593
Signed-off-by: Mohan Thadikamalla <mohant@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2331371
Reviewed-by: Rakesh Goyal <rgoyal@nvidia.com>
Reviewed-by: Bhadram Varka <vbhadram@nvidia.com>
This commit is contained in:
Mohan Thadikamalla
2020-04-20 15:27:33 +05:30
committed by Revanth Kumar Uppala
parent f244049a90
commit c2f3c724bd
5 changed files with 148 additions and 0 deletions
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44
drivers/net/ethernet/nvidia/nvethernet/sysfs.c
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@@ -121,6 +121,49 @@ static DEVICE_ATTR(mac_loopback, (S_IRUGO | S_IWUSR),
ether_mac_loopback_show,
ether_mac_loopback_store);
/**
* @brief Shows the current setting of FRP Table
*
* Algorithm: Display the FRP table
*
* @param[in] dev: Device data.
* @param[in] attr: Device attribute
* @param[in] buf: Buffer to store the current MAC loopback setting
*
* @note MAC and PHY need to be initialized.
*/
static ssize_t ether_mac_frp_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;
struct osi_core_frp_entry *entry = NULL;
struct osi_core_frp_data *data = NULL;
int i = 0, j = 0;
/* Write FRP table entries */
for (i = 0, j = 0; ((i < osi_core->frp_cnt) && (j < PAGE_SIZE)); i++) {
entry = &osi_core->frp_table[i];
data = &entry->data;
j += scnprintf((buf + j), (PAGE_SIZE - j),
"[%d] ID:%d MD:0x%x ME:0x%x AF:%d RF:%d IM:%d NIC:%d FO:%d OKI:%d DCH:x%x\n",
i, entry->frp_id, data->match_data,
data->match_en, data->accept_frame,
data->reject_frame, data->inverse_match,
data->next_ins_ctrl, data->frame_offset,
data->ok_index, data->dma_chsel);
}
return j;
}
/**
* @brief Sysfs attribute for FRP table show
*
*/
static DEVICE_ATTR(frp, 0644, ether_mac_frp_show, NULL);
/**
* @brief Shows the current setting of PTP mode
*
@@ -275,6 +318,7 @@ static struct attribute *ether_sysfs_attrs[] = {
&dev_attr_mac_loopback.attr,
&dev_attr_ptp_mode.attr,
&dev_attr_ptp_sync.attr,
&dev_attr_frp.attr,
NULL
};