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| author | Christoph Hellwig <hch@lst.de> | 2015-10-08 09:16:33 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2015-10-08 11:09:10 +0100 |
| commit | e622f2f4ad2142d2a613a57fb85f8cf737935ef5 (patch) | |
| tree | 19fa458bcaacf3f8b2f5e40676f748afc3df1e84 /drivers/infiniband/ulp/ipoib/ipoib_ib.c | |
| parent | b8cab5dab15ff5c2acc3faefdde28919b0341c11 (diff) | |
| download | op-kernel-dev-e622f2f4ad2142d2a613a57fb85f8cf737935ef5.zip op-kernel-dev-e622f2f4ad2142d2a613a57fb85f8cf737935ef5.tar.gz | |
IB: split struct ib_send_wr
This patch split up struct ib_send_wr so that all non-trivial verbs
use their own structure which embedds struct ib_send_wr. This dramaticly
shrinks the size of a WR for most common operations:
sizeof(struct ib_send_wr) (old): 96
sizeof(struct ib_send_wr): 48
sizeof(struct ib_rdma_wr): 64
sizeof(struct ib_atomic_wr): 96
sizeof(struct ib_ud_wr): 88
sizeof(struct ib_fast_reg_wr): 88
sizeof(struct ib_bind_mw_wr): 96
sizeof(struct ib_sig_handover_wr): 80
And with Sagi's pending MR rework the fast registration WR will also be
down to a reasonable size:
sizeof(struct ib_fastreg_wr): 64
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> [srp, srpt]
Reviewed-by: Chuck Lever <chuck.lever@oracle.com> [sunrpc]
Tested-by: Haggai Eran <haggaie@mellanox.com>
Tested-by: Sagi Grimberg <sagig@mellanox.com>
Tested-by: Steve Wise <swise@opengridcomputing.com>
Diffstat (limited to 'drivers/infiniband/ulp/ipoib/ipoib_ib.c')
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_ib.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c index d266667..5ea0c14 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c @@ -518,19 +518,19 @@ static inline int post_send(struct ipoib_dev_priv *priv, ipoib_build_sge(priv, tx_req); - priv->tx_wr.wr_id = wr_id; - priv->tx_wr.wr.ud.remote_qpn = qpn; - priv->tx_wr.wr.ud.ah = address; + priv->tx_wr.wr.wr_id = wr_id; + priv->tx_wr.remote_qpn = qpn; + priv->tx_wr.ah = address; if (head) { - priv->tx_wr.wr.ud.mss = skb_shinfo(skb)->gso_size; - priv->tx_wr.wr.ud.header = head; - priv->tx_wr.wr.ud.hlen = hlen; - priv->tx_wr.opcode = IB_WR_LSO; + priv->tx_wr.mss = skb_shinfo(skb)->gso_size; + priv->tx_wr.header = head; + priv->tx_wr.hlen = hlen; + priv->tx_wr.wr.opcode = IB_WR_LSO; } else - priv->tx_wr.opcode = IB_WR_SEND; + priv->tx_wr.wr.opcode = IB_WR_SEND; - return ib_post_send(priv->qp, &priv->tx_wr, &bad_wr); + return ib_post_send(priv->qp, &priv->tx_wr.wr, &bad_wr); } void ipoib_send(struct net_device *dev, struct sk_buff *skb, @@ -583,9 +583,9 @@ void ipoib_send(struct net_device *dev, struct sk_buff *skb, } if (skb->ip_summed == CHECKSUM_PARTIAL) - priv->tx_wr.send_flags |= IB_SEND_IP_CSUM; + priv->tx_wr.wr.send_flags |= IB_SEND_IP_CSUM; else - priv->tx_wr.send_flags &= ~IB_SEND_IP_CSUM; + priv->tx_wr.wr.send_flags &= ~IB_SEND_IP_CSUM; if (++priv->tx_outstanding == ipoib_sendq_size) { ipoib_dbg(priv, "TX ring full, stopping kernel net queue\n"); |
