android/android_kernel_asus_sm8350
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

qede: Add get/set rx copy break tunable support

Browse Source 
Signed-off-by: Manish <manish.chopra@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Manish Chopra
2016-06-30 02:35:21 -04:00
committed by David S. Miller
parent 312e06761c
commit 3d789994b0
3 changed files with 51 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/ethernet/qlogic/qede/qede.h
View File

@ -143,6 +143,8 @@ struct qede_dev {
struct mutex qede_lock;
u32 state; /* Protected by qede_lock */
u16 rx_buf_size;
u32 rx_copybreak;
/* L2 header size + 2*VLANs (8 bytes) + LLC SNAP (8 bytes) */
#define ETH_OVERHEAD (ETH_HLEN + 8 + 8)
/* Max supported alignment is 256 (8 shift)
@ -333,6 +335,7 @@ void qede_recycle_rx_bd_ring(struct qede_rx_queue *rxq, struct qede_dev *edev,
#define NUM_TX_BDS_MIN 128
#define NUM_TX_BDS_DEF NUM_TX_BDS_MAX
#define QEDE_MIN_PKT_LEN 64
#define QEDE_RX_HDR_SIZE 256
#define for_each_rss(i) for (i = 0; i < edev->num_rss; i++)

46
drivers/net/ethernet/qlogic/qede/qede_ethtool.c
View File

@ -1185,6 +1185,48 @@ static void qede_self_test(struct net_device *dev,
}
}
static int qede_set_tunable(struct net_device *dev,
const struct ethtool_tunable *tuna,
const void *data)
{
struct qede_dev *edev = netdev_priv(dev);
u32 val;
switch (tuna->id) {
case ETHTOOL_RX_COPYBREAK:
val = *(u32 *)data;
if (val < QEDE_MIN_PKT_LEN || val > QEDE_RX_HDR_SIZE) {
DP_VERBOSE(edev, QED_MSG_DEBUG,
"Invalid rx copy break value, range is [%u, %u]",
QEDE_MIN_PKT_LEN, QEDE_RX_HDR_SIZE);
return -EINVAL;
}
edev->rx_copybreak = *(u32 *)data;
break;
default:
return -EOPNOTSUPP;
}
return 0;
}
static int qede_get_tunable(struct net_device *dev,
const struct ethtool_tunable *tuna, void *data)
{
struct qede_dev *edev = netdev_priv(dev);
switch (tuna->id) {
case ETHTOOL_RX_COPYBREAK:
*(u32 *)data = edev->rx_copybreak;
break;
default:
return -EOPNOTSUPP;
}
return 0;
}
static const struct ethtool_ops qede_ethtool_ops = {
.get_settings = qede_get_settings,
.set_settings = qede_set_settings,
@ -1213,6 +1255,8 @@ static const struct ethtool_ops qede_ethtool_ops = {
.get_channels = qede_get_channels,
.set_channels = qede_set_channels,
.self_test = qede_self_test,
.get_tunable = qede_get_tunable,
.set_tunable = qede_set_tunable,
};
static const struct ethtool_ops qede_vf_ethtool_ops = {
@ -1235,6 +1279,8 @@ static const struct ethtool_ops qede_vf_ethtool_ops = {
.set_rxfh = qede_set_rxfh,
.get_channels = qede_get_channels,
.set_channels = qede_set_channels,
.get_tunable = qede_get_tunable,
.set_tunable = qede_set_tunable,
};
void qede_set_ethtool_ops(struct net_device *dev)

3
drivers/net/ethernet/qlogic/qede/qede_main.c
View File

@ -1474,7 +1474,7 @@ alloc_skb:
}
/* Copy data into SKB */
if (len + pad <= QEDE_RX_HDR_SIZE) {
if (len + pad <= edev->rx_copybreak) {
memcpy(skb_put(skb, len),
page_address(data) + pad +
sw_rx_data->page_offset, len);
@ -2519,6 +2519,7 @@ static int __qede_probe(struct pci_dev *pdev, u32 dp_module, u8 dp_level,
INIT_DELAYED_WORK(&edev->sp_task, qede_sp_task);
mutex_init(&edev->qede_lock);
edev->rx_copybreak = QEDE_RX_HDR_SIZE;
DP_INFO(edev, "Ending successfully qede probe\n");