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authorRon Mercer <ron.mercer@qlogic.com>2010-01-02 10:37:44 +0000
committerDavid S. Miller <davem@davemloft.net>2010-01-06 20:30:35 -0800
commit635267130855e91f4681df5e4d26ca9ce908447f (patch)
tree331cdcf32a98583818dcf2abd372ced41aa56216 /drivers/net/qlge
parent4f848c0a9c265cb3457fbf842dbffd28e82a44fd (diff)
qlge: Add napi gro frags interface.
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/qlge')
-rw-r--r--drivers/net/qlge/qlge_main.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/drivers/net/qlge/qlge_main.c b/drivers/net/qlge/qlge_main.c
index 109bd0abe9b..e9d6481ed9e 100644
--- a/drivers/net/qlge/qlge_main.c
+++ b/drivers/net/qlge/qlge_main.c
@@ -1434,6 +1434,51 @@ map_error:
}
/* Process an inbound completion from an rx ring. */
+static void ql_process_mac_rx_gro_page(struct ql_adapter *qdev,
+ struct rx_ring *rx_ring,
+ struct ib_mac_iocb_rsp *ib_mac_rsp,
+ u32 length,
+ u16 vlan_id)
+{
+ struct sk_buff *skb;
+ struct bq_desc *lbq_desc = ql_get_curr_lchunk(qdev, rx_ring);
+ struct skb_frag_struct *rx_frag;
+ int nr_frags;
+ struct napi_struct *napi = &rx_ring->napi;
+
+ napi->dev = qdev->ndev;
+
+ skb = napi_get_frags(napi);
+ if (!skb) {
+ QPRINTK(qdev, DRV, ERR, "Couldn't get an skb, exiting.\n");
+ rx_ring->rx_dropped++;
+ put_page(lbq_desc->p.pg_chunk.page);
+ return;
+ }
+ prefetch(lbq_desc->p.pg_chunk.va);
+ rx_frag = skb_shinfo(skb)->frags;
+ nr_frags = skb_shinfo(skb)->nr_frags;
+ rx_frag += nr_frags;
+ rx_frag->page = lbq_desc->p.pg_chunk.page;
+ rx_frag->page_offset = lbq_desc->p.pg_chunk.offset;
+ rx_frag->size = length;
+
+ skb->len += length;
+ skb->data_len += length;
+ skb->truesize += length;
+ skb_shinfo(skb)->nr_frags++;
+
+ rx_ring->rx_packets++;
+ rx_ring->rx_bytes += length;
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ skb_record_rx_queue(skb, rx_ring->cq_id);
+ if (qdev->vlgrp && (vlan_id != 0xffff))
+ vlan_gro_frags(&rx_ring->napi, qdev->vlgrp, vlan_id);
+ else
+ napi_gro_frags(napi);
+}
+
+/* Process an inbound completion from an rx ring. */
static void ql_process_mac_rx_page(struct ql_adapter *qdev,
struct rx_ring *rx_ring,
struct ib_mac_iocb_rsp *ib_mac_rsp,
@@ -1980,6 +2025,14 @@ static unsigned long ql_process_mac_rx_intr(struct ql_adapter *qdev,
*/
ql_process_mac_rx_skb(qdev, rx_ring, ib_mac_rsp,
length, vlan_id);
+ } else if ((ib_mac_rsp->flags3 & IB_MAC_IOCB_RSP_DL) &&
+ !(ib_mac_rsp->flags1 & IB_MAC_CSUM_ERR_MASK) &&
+ (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_T)) {
+ /* TCP packet in a page chunk that's been checksummed.
+ * Tack it on to our GRO skb and let it go.
+ */
+ ql_process_mac_rx_gro_page(qdev, rx_ring, ib_mac_rsp,
+ length, vlan_id);
} else if (ib_mac_rsp->flags3 & IB_MAC_IOCB_RSP_DL) {
/* Non-TCP packet in a page chunk. Allocate an
* skb, tack it on frags, and send it up.