[ofa-general] [PATCH 7/9 Rev3] [IPoIB] Verb changes

Krishna Kumar
2007-08-08T09:32:26Z

IPoIB verb changes to use batching.

Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
---
ipoib_verbs.c | 23 ++++++++++++++---------
1 files changed, 14 insertions(+), 9 deletions(-)

diff -ruNp ORG/drivers/infiniband/ulp/ipoib/ipoib_verbs.c NEW/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
--- ORG/drivers/infiniband/ulp/ipoib/ipoib_verbs.c 2007-07-12 08:55:06.000000000 +0530
+++ NEW/drivers/infiniband/ulp/ipoib/ipoib_verbs.c 2007-08-07 13:11:19.000000000 +0530
@@ -152,11 +152,11 @@ int ipoib_transport_dev_init(struct net_
.max_send_sge = 1,
.max_recv_sge = 1
},
- .sq_sig_type = IB_SIGNAL_ALL_WR,
+ .sq_sig_type = IB_SIGNAL_REQ_WR, /* 11.2.4.1 */
.qp_type = IB_QPT_UD
};
-
- int ret, size;
+ struct ib_send_wr *next_wr = NULL;
+ int i, ret, size;

priv->pd = ib_alloc_pd(priv->ca);
if (IS_ERR(priv->pd)) {
@@ -197,12 +197,17 @@ int ipoib_transport_dev_init(struct net_
priv->dev->dev_addr[2] = (priv->qp->qp_num >> 8) & 0xff;
priv->dev->dev_addr[3] = (priv->qp->qp_num ) & 0xff;

- priv->tx_sge.lkey = priv->mr->lkey;
-
- priv->tx_wr.opcode = IB_WR_SEND;
- priv->tx_wr.sg_list = &priv->tx_sge;
- priv->tx_wr.num_sge = 1;
- priv->tx_wr.send_flags = IB_SEND_SIGNALED;
+ for (i = ipoib_sendq_size - 1; i >= 0; i--) {
+ priv->tx_sge[i].lkey = priv->mr->lkey;
+ priv->tx_wr[i].opcode = IB_WR_SEND;
+ priv->tx_wr[i].sg_list = &priv->tx_sge[i];
+ priv->tx_wr[i].num_sge = 1;
+ priv->tx_wr[i].send_flags = 0;
+
+ /* Link the list properly for provider to use */
+ priv->tx_wr[i].next = next_wr;
+ next_wr = &priv->tx_wr[i];
+ }

return 0;