Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

[linux-2.6-omap-h63xx.git] / drivers / infiniband / ulp / ipoib / ipoib.h

diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h
index 73b2b176ad0e45e98adbb257d724fb1f814f507a..9044f8803532e035e264e2b166644b05d84563e4 100644 (file)
--- a/drivers/infiniband/ulp/ipoib/ipoib.h
+++ b/drivers/infiniband/ulp/ipoib/ipoib.h
@@ -56,11 +56,11 @@
 /* constants */
 
 enum {
-       IPOIB_PACKET_SIZE         = 2048,
-       IPOIB_BUF_SIZE            = IPOIB_PACKET_SIZE + IB_GRH_BYTES,
-
        IPOIB_ENCAP_LEN           = 4,
 
+       IPOIB_UD_HEAD_SIZE        = IB_GRH_BYTES + IPOIB_ENCAP_LEN,
+       IPOIB_UD_RX_SG            = 2, /* max buffer needed for 4K mtu */
+
        IPOIB_CM_MTU              = 0x10000 - 0x10, /* padding to align header to 16 */
        IPOIB_CM_BUF_SIZE         = IPOIB_CM_MTU  + IPOIB_ENCAP_LEN,
        IPOIB_CM_HEAD_SIZE        = IPOIB_CM_BUF_SIZE % PAGE_SIZE,
@@ -95,6 +95,8 @@ enum {
        IPOIB_MCAST_FLAG_SENDONLY = 1,
        IPOIB_MCAST_FLAG_BUSY     = 2,  /* joining or already joined */
        IPOIB_MCAST_FLAG_ATTACHED = 3,
+
+       MAX_SEND_CQE              = 16,
 };
 
 #define        IPOIB_OP_RECV   (1ul << 31)
@@ -139,7 +141,7 @@ struct ipoib_mcast {
 
 struct ipoib_rx_buf {
        struct sk_buff *skb;
-       u64             mapping;
+       u64             mapping[IPOIB_UD_RX_SG];
 };
 
 struct ipoib_tx_buf {
@@ -285,7 +287,8 @@ struct ipoib_dev_priv {
        u16               pkey_index;
        struct ib_pd     *pd;
        struct ib_mr     *mr;
-       struct ib_cq     *cq;
+       struct ib_cq     *recv_cq;
+       struct ib_cq     *send_cq;
        struct ib_qp     *qp;
        u32               qkey;
 
@@ -294,6 +297,7 @@ struct ipoib_dev_priv {
 
        unsigned int admin_mtu;
        unsigned int mcast_mtu;
+       unsigned int max_ib_mtu;
 
        struct ipoib_rx_buf *rx_ring;
 
@@ -304,6 +308,10 @@ struct ipoib_dev_priv {
        struct ib_sge        tx_sge[MAX_SKB_FRAGS + 1];
        struct ib_send_wr    tx_wr;
        unsigned             tx_outstanding;
+       struct ib_wc         send_wc[MAX_SEND_CQE];
+
+       struct ib_recv_wr    rx_wr;
+       struct ib_sge        rx_sge[IPOIB_UD_RX_SG];
 
        struct ib_wc ibwc[IPOIB_NUM_WC];
 
@@ -366,6 +374,14 @@ struct ipoib_neigh {
        struct list_head    list;
 };
 
+#define IPOIB_UD_MTU(ib_mtu)           (ib_mtu - IPOIB_ENCAP_LEN)
+#define IPOIB_UD_BUF_SIZE(ib_mtu)      (ib_mtu + IB_GRH_BYTES)
+
+static inline int ipoib_ud_need_sg(unsigned int ib_mtu)
+{
+       return IPOIB_UD_BUF_SIZE(ib_mtu) > PAGE_SIZE;
+}
+
 /*
  * We stash a pointer to our private neighbour information after our
  * hardware address in neigh->ha.  The ALIGN() expression here makes
@@ -650,7 +666,6 @@ static inline int ipoib_register_debugfs(void) { return 0; }
 static inline void ipoib_unregister_debugfs(void) { }
 #endif
 
-
 #define ipoib_printk(level, priv, format, arg...)      \
        printk(level "%s: " format, ((struct ipoib_dev_priv *) priv)->dev->name , ## arg)
 #define ipoib_warn(priv, format, arg...)               \