be2net: fix rx-path to ignore a flush completion
The flush compl (compl with numfrags == 0; no data) is rcvd from hw to indicate completion of RXQ destory operation. Fix the RX path to not process it as RX data. Signed-off-by: Sathya Perla <sathyap@serverengines.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
7a1e9b2059
commit
89420424fc
|
@ -680,17 +680,17 @@ static void be_rx_compl_discard(struct be_adapter *adapter,
|
|||
* indicated by rxcp.
|
||||
*/
|
||||
static void skb_fill_rx_data(struct be_adapter *adapter,
|
||||
struct sk_buff *skb, struct be_eth_rx_compl *rxcp)
|
||||
struct sk_buff *skb, struct be_eth_rx_compl *rxcp,
|
||||
u16 num_rcvd)
|
||||
{
|
||||
struct be_queue_info *rxq = &adapter->rx_obj.q;
|
||||
struct be_rx_page_info *page_info;
|
||||
u16 rxq_idx, i, num_rcvd, j;
|
||||
u16 rxq_idx, i, j;
|
||||
u32 pktsize, hdr_len, curr_frag_len, size;
|
||||
u8 *start;
|
||||
|
||||
rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
|
||||
pktsize = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
|
||||
num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
|
||||
|
||||
page_info = get_rx_page_info(adapter, rxq_idx);
|
||||
|
||||
|
@ -766,8 +766,14 @@ static void be_rx_compl_process(struct be_adapter *adapter,
|
|||
{
|
||||
struct sk_buff *skb;
|
||||
u32 vlanf, vid;
|
||||
u16 num_rcvd;
|
||||
u8 vtm;
|
||||
|
||||
num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
|
||||
/* Is it a flush compl that has no data */
|
||||
if (unlikely(num_rcvd == 0))
|
||||
return;
|
||||
|
||||
skb = netdev_alloc_skb_ip_align(adapter->netdev, BE_HDR_LEN);
|
||||
if (unlikely(!skb)) {
|
||||
if (net_ratelimit())
|
||||
|
@ -776,7 +782,7 @@ static void be_rx_compl_process(struct be_adapter *adapter,
|
|||
return;
|
||||
}
|
||||
|
||||
skb_fill_rx_data(adapter, skb, rxcp);
|
||||
skb_fill_rx_data(adapter, skb, rxcp, num_rcvd);
|
||||
|
||||
if (do_pkt_csum(rxcp, adapter->rx_csum))
|
||||
skb->ip_summed = CHECKSUM_NONE;
|
||||
|
@ -823,6 +829,10 @@ static void be_rx_compl_process_gro(struct be_adapter *adapter,
|
|||
u8 vtm;
|
||||
|
||||
num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
|
||||
/* Is it a flush compl that has no data */
|
||||
if (unlikely(num_rcvd == 0))
|
||||
return;
|
||||
|
||||
pkt_size = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
|
||||
vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
|
||||
rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
|
||||
|
@ -1273,6 +1283,11 @@ static void be_rx_queues_destroy(struct be_adapter *adapter)
|
|||
q = &adapter->rx_obj.q;
|
||||
if (q->created) {
|
||||
be_cmd_q_destroy(adapter, q, QTYPE_RXQ);
|
||||
|
||||
/* After the rxq is invalidated, wait for a grace time
|
||||
* of 1ms for all dma to end and the flush compl to arrive
|
||||
*/
|
||||
mdelay(1);
|
||||
be_rx_q_clean(adapter);
|
||||
}
|
||||
be_queue_free(adapter, q);
|
||||
|
|
Loading…
Reference in a new issue