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authorAndy Grover <andy.grover@oracle.com>2010-01-12 12:15:02 -0800
committerAndy Grover <andy.grover@oracle.com>2010-09-08 18:11:33 -0700
commite779137aa76d38d5c33a98ed887092ae4e4f016f (patch)
treeaf0a34f9334bd11ca507d4e63a963c561ff981ae /net/rds/iw_send.c
parent8690bfa17aea4c42da1bcf90a7af93d161eca624 (diff)
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RDS: break out rdma and data ops into nested structs in rds_message
Clearly separate rdma-related variables in rm from data-related ones. This is in anticipation of adding atomic support. Signed-off-by: Andy Grover <andy.grover@oracle.com>
Diffstat (limited to 'net/rds/iw_send.c')
-rw-r--r--net/rds/iw_send.c38
1 files changed, 20 insertions, 18 deletions
diff --git a/net/rds/iw_send.c b/net/rds/iw_send.c
index dced532..c187e8f 100644
--- a/net/rds/iw_send.c
+++ b/net/rds/iw_send.c
@@ -83,11 +83,11 @@ static void rds_iw_send_unmap_rm(struct rds_iw_connection *ic,
rdsdebug("ic %p send %p rm %p\n", ic, send, rm);
ib_dma_unmap_sg(ic->i_cm_id->device,
- rm->m_sg, rm->m_nents,
+ rm->data.m_sg, rm->data.m_nents,
DMA_TO_DEVICE);
- if (rm->m_rdma_op) {
- rds_iw_send_unmap_rdma(ic, rm->m_rdma_op);
+ if (rm->rdma.m_rdma_op) {
+ 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:
@@ -111,10 +111,10 @@ static void rds_iw_send_unmap_rm(struct rds_iw_connection *ic,
*/
rds_iw_send_rdma_complete(rm, wc_status);
- if (rm->m_rdma_op->r_write)
- rds_stats_add(s_send_rdma_bytes, rm->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->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
@@ -563,18 +563,20 @@ int rds_iw_xmit(struct rds_connection *conn, struct rds_message *rm,
rm->m_inc.i_hdr.h_flags,
be32_to_cpu(rm->m_inc.i_hdr.h_len));
*/
- if (rm->m_nents) {
- rm->m_count = ib_dma_map_sg(dev,
- rm->m_sg, rm->m_nents, DMA_TO_DEVICE);
- rdsdebug("ic %p mapping rm %p: %d\n", ic, rm, rm->m_count);
- if (rm->m_count == 0) {
+ if (rm->data.m_nents) {
+ rm->data.m_count = ib_dma_map_sg(dev,
+ rm->data.m_sg,
+ rm->data.m_nents,
+ DMA_TO_DEVICE);
+ rdsdebug("ic %p mapping rm %p: %d\n", ic, rm, rm->data.m_count);
+ if (rm->data.m_count == 0) {
rds_iw_stats_inc(s_iw_tx_sg_mapping_failure);
rds_iw_ring_unalloc(&ic->i_send_ring, work_alloc);
ret = -ENOMEM; /* XXX ? */
goto out;
}
} else {
- rm->m_count = 0;
+ rm->data.m_count = 0;
}
ic->i_unsignaled_wrs = rds_iw_sysctl_max_unsig_wrs;
@@ -590,10 +592,10 @@ 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->m_rdma_op) {
+ if (rm->rdma.m_rdma_op) {
struct rds_ext_header_rdma ext_hdr;
- ext_hdr.h_rdma_rkey = cpu_to_be32(rm->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));
}
@@ -621,7 +623,7 @@ int rds_iw_xmit(struct rds_connection *conn, struct rds_message *rm,
send = &ic->i_sends[pos];
first = send;
prev = NULL;
- scat = &rm->m_sg[sg];
+ scat = &rm->data.m_sg[sg];
sent = 0;
i = 0;
@@ -631,7 +633,7 @@ 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->m_rdma_op && rm->m_rdma_op->r_fence)
+ if (rm->rdma.m_rdma_op && rm->rdma.m_rdma_op->r_fence)
send_flags = IB_SEND_FENCE;
/*
@@ -650,7 +652,7 @@ int rds_iw_xmit(struct rds_connection *conn, struct rds_message *rm,
}
/* if there's data reference it with a chain of work reqs */
- for (; i < work_alloc && scat != &rm->m_sg[rm->m_count]; i++) {
+ for (; i < work_alloc && scat != &rm->data.m_sg[rm->data.m_count]; i++) {
unsigned int len;
send = &ic->i_sends[pos];
@@ -728,7 +730,7 @@ add_header:
sent += sizeof(struct rds_header);
/* if we finished the message then send completion owns it */
- if (scat == &rm->m_sg[rm->m_count]) {
+ if (scat == &rm->data.m_sg[rm->data.m_count]) {
prev->s_rm = ic->i_rm;
prev->s_wr.send_flags |= IB_SEND_SIGNALED | IB_SEND_SOLICITED;
ic->i_rm = NULL;