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authorAndy Grover <andy.grover@oracle.com>2010-01-12 14:13:15 -0800
committerAndy Grover <andy.grover@oracle.com>2010-09-08 18:11:38 -0700
commitff87e97a9d70c9ae133d3d3d7792b26ab85f4297 (patch)
tree32de73cdf5e4353e89b3351eaae695f69faa868b /net/rds/iw_send.c
parent21f79afa5fda2820671a8f64c3d0e43bb118053b (diff)
downloadlinux-ff87e97a9d70c9ae133d3d3d7792b26ab85f4297.tar.bz2
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 <andy.grover@oracle.com>
Diffstat (limited to 'net/rds/iw_send.c')
-rw-r--r--net/rds/iw_send.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/net/rds/iw_send.c b/net/rds/iw_send.c
index 62234b804d93..9b79a1b10445 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;
/*