From ff87e97a9d70c9ae133d3d3d7792b26ab85f4297 Mon Sep 17 00:00:00 2001 From: Andy Grover Date: Tue, 12 Jan 2010 14:13:15 -0800 Subject: RDS: make m_rdma_op a member of rds_message This eliminates a separate memory alloc, although it is now necessary to add an "r_active" flag, since it is no longer to use the m_rdma_op pointer as an indicator of if an rdma op is present. rdma SGs allocated from rm sg pool. rds_rm_size also gets bigger. It's a little inefficient to run through CMSGs twice, but it makes later steps a lot smoother. Signed-off-by: Andy Grover --- net/rds/iw_send.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'net/rds/iw_send.c') diff --git a/net/rds/iw_send.c b/net/rds/iw_send.c index 62234b8..9b79a1b 100644 --- a/net/rds/iw_send.c +++ b/net/rds/iw_send.c @@ -85,8 +85,8 @@ static void rds_iw_send_unmap_rm(struct rds_iw_connection *ic, rm->data.m_sg, rm->data.m_nents, DMA_TO_DEVICE); - if (rm->rdma.m_rdma_op) { - rds_iw_send_unmap_rdma(ic, rm->rdma.m_rdma_op); + if (rm->rdma.m_rdma_op.r_active) { + rds_iw_send_unmap_rdma(ic, &rm->rdma.m_rdma_op); /* If the user asked for a completion notification on this * message, we can implement three different semantics: @@ -110,10 +110,10 @@ static void rds_iw_send_unmap_rm(struct rds_iw_connection *ic, */ rds_iw_send_rdma_complete(rm, wc_status); - if (rm->rdma.m_rdma_op->r_write) - rds_stats_add(s_send_rdma_bytes, rm->rdma.m_rdma_op->r_bytes); + if (rm->rdma.m_rdma_op.r_write) + rds_stats_add(s_send_rdma_bytes, rm->rdma.m_rdma_op.r_bytes); else - rds_stats_add(s_recv_rdma_bytes, rm->rdma.m_rdma_op->r_bytes); + rds_stats_add(s_recv_rdma_bytes, rm->rdma.m_rdma_op.r_bytes); } /* If anyone waited for this message to get flushed out, wake @@ -591,10 +591,10 @@ int rds_iw_xmit(struct rds_connection *conn, struct rds_message *rm, /* If it has a RDMA op, tell the peer we did it. This is * used by the peer to release use-once RDMA MRs. */ - if (rm->rdma.m_rdma_op) { + if (rm->rdma.m_rdma_op.r_active) { struct rds_ext_header_rdma ext_hdr; - ext_hdr.h_rdma_rkey = cpu_to_be32(rm->rdma.m_rdma_op->r_key); + ext_hdr.h_rdma_rkey = cpu_to_be32(rm->rdma.m_rdma_op.r_key); rds_message_add_extension(&rm->m_inc.i_hdr, RDS_EXTHDR_RDMA, &ext_hdr, sizeof(ext_hdr)); } @@ -632,7 +632,7 @@ int rds_iw_xmit(struct rds_connection *conn, struct rds_message *rm, * or when requested by the user. Right now, we let * the application choose. */ - if (rm->rdma.m_rdma_op && rm->rdma.m_rdma_op->r_fence) + if (rm->rdma.m_rdma_op.r_active && rm->rdma.m_rdma_op.r_fence) send_flags = IB_SEND_FENCE; /* -- cgit v1.1