aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/benet/be_main.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/benet/be_main.c')
-rw-r--r--drivers/net/benet/be_main.c69
1 files changed, 45 insertions, 24 deletions
diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c
index 66c10c87f517..dea3155688bb 100644
--- a/drivers/net/benet/be_main.c
+++ b/drivers/net/benet/be_main.c
@@ -666,8 +666,8 @@ static void skb_fill_rx_data(struct be_adapter *adapter,
{
struct be_queue_info *rxq = &adapter->rx_obj.q;
struct be_rx_page_info *page_info;
- u16 rxq_idx, i, num_rcvd;
- u32 pktsize, hdr_len, curr_frag_len;
+ u16 rxq_idx, i, num_rcvd, j;
+ u32 pktsize, hdr_len, curr_frag_len, size;
u8 *start;
rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
@@ -708,23 +708,34 @@ static void skb_fill_rx_data(struct be_adapter *adapter,
}
/* More frags present for this completion */
- pktsize -= curr_frag_len; /* account for above copied frag */
- for (i = 1; i < num_rcvd; i++) {
+ size = pktsize;
+ for (i = 1, j = 0; i < num_rcvd; i++) {
+ size -= curr_frag_len;
index_inc(&rxq_idx, rxq->len);
page_info = get_rx_page_info(adapter, rxq_idx);
- curr_frag_len = min(pktsize, rx_frag_size);
+ curr_frag_len = min(size, rx_frag_size);
+
+ /* Coalesce all frags from the same physical page in one slot */
+ if (page_info->page_offset == 0) {
+ /* Fresh page */
+ j++;
+ skb_shinfo(skb)->frags[j].page = page_info->page;
+ skb_shinfo(skb)->frags[j].page_offset =
+ page_info->page_offset;
+ skb_shinfo(skb)->frags[j].size = 0;
+ skb_shinfo(skb)->nr_frags++;
+ } else {
+ put_page(page_info->page);
+ }
- skb_shinfo(skb)->frags[i].page = page_info->page;
- skb_shinfo(skb)->frags[i].page_offset = page_info->page_offset;
- skb_shinfo(skb)->frags[i].size = curr_frag_len;
+ skb_shinfo(skb)->frags[j].size += curr_frag_len;
skb->len += curr_frag_len;
skb->data_len += curr_frag_len;
- skb_shinfo(skb)->nr_frags++;
- pktsize -= curr_frag_len;
memset(page_info, 0, sizeof(*page_info));
}
+ BUG_ON(j > MAX_SKB_FRAGS);
done:
be_rx_stats_update(adapter, pktsize, num_rcvd);
@@ -786,7 +797,7 @@ static void be_rx_compl_process_lro(struct be_adapter *adapter,
struct skb_frag_struct rx_frags[BE_MAX_FRAGS_PER_FRAME];
struct be_queue_info *rxq = &adapter->rx_obj.q;
u32 num_rcvd, pkt_size, remaining, vlanf, curr_frag_len;
- u16 i, rxq_idx = 0, vid;
+ u16 i, rxq_idx = 0, vid, j;
num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
pkt_size = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
@@ -794,20 +805,28 @@ static void be_rx_compl_process_lro(struct be_adapter *adapter,
rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
remaining = pkt_size;
- for (i = 0; i < num_rcvd; i++) {
+ for (i = 0, j = -1; i < num_rcvd; i++) {
page_info = get_rx_page_info(adapter, rxq_idx);
curr_frag_len = min(remaining, rx_frag_size);
- rx_frags[i].page = page_info->page;
- rx_frags[i].page_offset = page_info->page_offset;
- rx_frags[i].size = curr_frag_len;
- remaining -= curr_frag_len;
+ /* Coalesce all frags from the same physical page in one slot */
+ if (i == 0 || page_info->page_offset == 0) {
+ /* First frag or Fresh page */
+ j++;
+ rx_frags[j].page = page_info->page;
+ rx_frags[j].page_offset = page_info->page_offset;
+ rx_frags[j].size = 0;
+ } else {
+ put_page(page_info->page);
+ }
+ rx_frags[j].size += curr_frag_len;
+ remaining -= curr_frag_len;
index_inc(&rxq_idx, rxq->len);
-
memset(page_info, 0, sizeof(*page_info));
}
+ BUG_ON(j > MAX_SKB_FRAGS);
if (likely(!vlanf)) {
lro_receive_frags(&adapter->rx_obj.lro_mgr, rx_frags, pkt_size,
@@ -1255,15 +1274,17 @@ static irqreturn_t be_intx(int irq, void *dev)
{
struct be_adapter *adapter = dev;
struct be_ctrl_info *ctrl = &adapter->ctrl;
- int rx, tx;
+ int isr;
- tx = event_handle(ctrl, &adapter->tx_eq);
- rx = event_handle(ctrl, &adapter->rx_eq);
+ isr = ioread32(ctrl->csr + CEV_ISR0_OFFSET +
+ ctrl->pci_func * CEV_ISR_SIZE);
+ if (!isr)
+ return IRQ_NONE;
- if (rx || tx)
- return IRQ_HANDLED;
- else
- return IRQ_NONE;
+ event_handle(ctrl, &adapter->tx_eq);
+ event_handle(ctrl, &adapter->rx_eq);
+
+ return IRQ_HANDLED;
}
static irqreturn_t be_msix_rx(int irq, void *dev)