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nvethernet: check for pkt validity

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Process only the valid received packets. Don't send packets
to network stack if they are not valid.

Bug 200515518

Change-Id: If5e630c82aeccfeb53da9dd6e7313301fe3cdf4c
Signed-off-by: Narayan Reddy <narayanr@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2109601
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Bhadram Varka <vbhadram@nvidia.com>
Reviewed-by: Rakesh Goyal <rgoyal@nvidia.com>
Reviewed-by: Srinivas Ramachandran <srinivasra@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Narayan Reddy
2019-05-02 01:24:12 +05:30
committed by Revanth Kumar Uppala
parent 4e30306bac
commit 01bab1179a
1 changed files with 19 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
drivers/net/ethernet/nvidia/nvethernet/osd.c
View File

@@ -221,22 +221,30 @@ void osd_receive_packet(void *priv, void *rxring, unsigned int chan,
struct sk_buff *skb = (struct sk_buff *)rx_swcx->buf_virt_addr;
dma_addr_t dma_addr = (dma_addr_t)rx_swcx->buf_phy_addr;
struct net_device *ndev = pdata->ndev;
struct osi_pkt_err_stats *pkt_err_stat = &pdata->osi_dma->pkt_err_stats;
dma_unmap_single(pdata->dev, dma_addr, dma_buf_len, DMA_FROM_DEVICE);
skb_put(skb, rx_pkt_cx->pkt_len);
/* Process only the Valid packets */
if (likely((rx_pkt_cx->flags & OSI_PKT_CX_VALID) ==
OSI_PKT_CX_VALID)) {
skb_put(skb, rx_pkt_cx->pkt_len);
if ((rx_pkt_cx->flags & OSI_PKT_CX_VLAN) == OSI_PKT_CX_VLAN) {
__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
rx_pkt_cx->vlan_tag);
if ((rx_pkt_cx->flags & OSI_PKT_CX_VLAN) == OSI_PKT_CX_VLAN) {
__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
rx_pkt_cx->vlan_tag);
}
skb->dev = ndev;
skb->protocol = eth_type_trans(skb, ndev);
ndev->stats.rx_bytes += skb->len;
netif_receive_skb(skb);
} else {
ndev->stats.rx_crc_errors = pkt_err_stat->rx_crc_error;
ndev->stats.rx_errors++;
}
skb->dev = ndev;
skb->protocol = eth_type_trans(skb, ndev);
ndev->stats.rx_packets++;
ndev->stats.rx_bytes += skb->len;
netif_receive_skb(skb);
rx_swcx->buf_virt_addr = NULL;
rx_swcx->buf_phy_addr = 0;
@@ -252,6 +260,7 @@ void osd_receive_packet(void *priv, void *rxring, unsigned int chan,
* @buffer: Buffer address to free.
* @dmaaddr: DMA address to unmap.
* @len: Length of data.
* @pkt_valid: Packet is valid or not
*
* Algorithm:
* 1) Updates stats for linux network stack.
@@ -265,7 +274,7 @@ void osd_receive_packet(void *priv, void *rxring, unsigned int chan,
* Return: None.
*/
void osd_transmit_complete(void *priv, void *buffer, unsigned long dmaaddr,
unsigned int len)
unsigned int len, int pkt_valid)
{
struct ether_priv_data *pdata = (struct ether_priv_data *)priv;
struct sk_buff *skb = (struct sk_buff *)buffer;