return bd_num;
}
-static unsigned int hns3_tx_bd_num(struct sk_buff *skb, unsigned int *bd_size)
+static unsigned int hns3_tx_bd_num(struct sk_buff *skb, unsigned int *bd_size,
+ u8 max_non_tso_bd_num)
{
struct sk_buff *frag_skb;
unsigned int bd_num = 0;
/* If the total len is within the max bd limit */
if (likely(skb->len <= HNS3_MAX_BD_SIZE && !skb_has_frag_list(skb) &&
- skb_shinfo(skb)->nr_frags < HNS3_MAX_NON_TSO_BD_NUM))
+ skb_shinfo(skb)->nr_frags < max_non_tso_bd_num))
return skb_shinfo(skb)->nr_frags + 1U;
/* The below case will always be linearized, return
* HNS3_MAX_BD_NUM_TSO + 1U to make sure it is linearized.
*/
if (unlikely(skb->len > HNS3_MAX_TSO_SIZE ||
- (!skb_is_gso(skb) && skb->len > HNS3_MAX_NON_TSO_SIZE)))
+ (!skb_is_gso(skb) && skb->len >
+ HNS3_MAX_NON_TSO_SIZE(max_non_tso_bd_num))))
return HNS3_MAX_TSO_BD_NUM + 1U;
bd_num = hns3_skb_bd_num(skb, bd_size, bd_num);
return skb_inner_transport_offset(skb) + inner_tcp_hdrlen(skb);
}
-/* HW need every continuous 8 buffer data to be larger than MSS,
- * we simplify it by ensuring skb_headlen + the first continuous
- * 7 frags to to be larger than gso header len + mss, and the remaining
- * continuous 7 frags to be larger than MSS except the last 7 frags.
+/* HW need every continuous max_non_tso_bd_num buffer data to be larger
+ * than MSS, we simplify it by ensuring skb_headlen + the first continuous
+ * max_non_tso_bd_num - 1 frags to be larger than gso header len + mss,
+ * and the remaining continuous max_non_tso_bd_num - 1 frags to be larger
+ * than MSS except the last max_non_tso_bd_num - 1 frags.
*/
static bool hns3_skb_need_linearized(struct sk_buff *skb, unsigned int *bd_size,
- unsigned int bd_num)
+ unsigned int bd_num, u8 max_non_tso_bd_num)
{
unsigned int tot_len = 0;
int i;
- for (i = 0; i < HNS3_MAX_NON_TSO_BD_NUM - 1U; i++)
+ for (i = 0; i < max_non_tso_bd_num - 1U; i++)
tot_len += bd_size[i];
- /* ensure the first 8 frags is greater than mss + header */
- if (tot_len + bd_size[HNS3_MAX_NON_TSO_BD_NUM - 1U] <
+ /* ensure the first max_non_tso_bd_num frags is greater than
+ * mss + header
+ */
+ if (tot_len + bd_size[max_non_tso_bd_num - 1U] <
skb_shinfo(skb)->gso_size + hns3_gso_hdr_len(skb))
return true;
- /* ensure every continuous 7 buffer is greater than mss
- * except the last one.
+ /* ensure every continuous max_non_tso_bd_num - 1 buffer is greater
+ * than mss except the last one.
*/
- for (i = 0; i < bd_num - HNS3_MAX_NON_TSO_BD_NUM; i++) {
+ for (i = 0; i < bd_num - max_non_tso_bd_num; i++) {
tot_len -= bd_size[i];
- tot_len += bd_size[i + HNS3_MAX_NON_TSO_BD_NUM - 1U];
+ tot_len += bd_size[i + max_non_tso_bd_num - 1U];
if (tot_len < skb_shinfo(skb)->gso_size)
return true;
struct sk_buff *skb)
{
struct hns3_nic_priv *priv = netdev_priv(netdev);
+ u8 max_non_tso_bd_num = priv->max_non_tso_bd_num;
unsigned int bd_size[HNS3_MAX_TSO_BD_NUM + 1U];
unsigned int bd_num;
- bd_num = hns3_tx_bd_num(skb, bd_size);
- if (unlikely(bd_num > HNS3_MAX_NON_TSO_BD_NUM)) {
+ bd_num = hns3_tx_bd_num(skb, bd_size, max_non_tso_bd_num);
+ if (unlikely(bd_num > max_non_tso_bd_num)) {
if (bd_num <= HNS3_MAX_TSO_BD_NUM && skb_is_gso(skb) &&
- !hns3_skb_need_linearized(skb, bd_size, bd_num)) {
+ !hns3_skb_need_linearized(skb, bd_size, bd_num,
+ max_non_tso_bd_num)) {
trace_hns3_over_8bd(skb);
goto out;
}
bd_num = hns3_tx_bd_count(skb->len);
if ((skb_is_gso(skb) && bd_num > HNS3_MAX_TSO_BD_NUM) ||
(!skb_is_gso(skb) &&
- bd_num > HNS3_MAX_NON_TSO_BD_NUM)) {
+ bd_num > max_non_tso_bd_num)) {
trace_hns3_over_8bd(skb);
return -ENOMEM;
}
static int hns3_client_init(struct hnae3_handle *handle)
{
struct pci_dev *pdev = handle->pdev;
+ struct hnae3_ae_dev *ae_dev = pci_get_drvdata(pdev);
u16 alloc_tqps, max_rss_size;
struct hns3_nic_priv *priv;
struct net_device *netdev;
priv->netdev = netdev;
priv->ae_handle = handle;
priv->tx_timeout_count = 0;
+ priv->max_non_tso_bd_num = ae_dev->dev_specs.max_non_tso_bd_num;
set_bit(HNS3_NIC_STATE_DOWN, &priv->state);
handle->msg_enable = netif_msg_init(debug, DEFAULT_MSG_LEVEL);