enic: support skb->xmit_more

[cascardo/linux.git] / drivers / net / ethernet / cisco / enic / vnic_wq.h

diff --git a/drivers/net/ethernet/cisco/enic/vnic_wq.h b/drivers/net/ethernet/cisco/enic/vnic_wq.h
index 2c6c708..816f1ad 100644 (file)
--- a/drivers/net/ethernet/cisco/enic/vnic_wq.h
+++ b/drivers/net/ethernet/cisco/enic/vnic_wq.h
@@ -104,6 +104,17 @@ static inline void *vnic_wq_next_desc(struct vnic_wq *wq)
        return wq->to_use->desc;
 }
 
+static inline void vnic_wq_doorbell(struct vnic_wq *wq)
+{
+       /* Adding write memory barrier prevents compiler and/or CPU
+        * reordering, thus avoiding descriptor posting before
+        * descriptor is initialized. Otherwise, hardware can read
+        * stale descriptor fields.
+        */
+       wmb();
+       iowrite32(wq->to_use->index, &wq->ctrl->posted_index);
+}
+
 static inline void vnic_wq_post(struct vnic_wq *wq,
        void *os_buf, dma_addr_t dma_addr,
        unsigned int len, int sop, int eop,
@@ -122,15 +133,6 @@ static inline void vnic_wq_post(struct vnic_wq *wq,
        buf->wr_id = wrid;
 
        buf = buf->next;
-       if (eop) {
-               /* Adding write memory barrier prevents compiler and/or CPU
-                * reordering, thus avoiding descriptor posting before
-                * descriptor is initialized. Otherwise, hardware can read
-                * stale descriptor fields.
-                */
-               wmb();
-               iowrite32(buf->index, &wq->ctrl->posted_index);
-       }
        wq->to_use = buf;
 
        wq->ring.desc_avail -= desc_skip_cnt;