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RDS: Remove struct rds_rdma_op

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A big changeset, but it's all pretty dumb.

struct rds_rdma_op was already embedded in struct rm_rdma_op.
Remove rds_rdma_op and put its members in rm_rdma_op. Rename
members with "op_" prefix instead of "r_", for consistency.

Of course this breaks a lot, so fixup the code accordingly.

Signed-off-by: Andy Grover <andy.grover@oracle.com>
This commit is contained in:
Andy Grover
2010-03-01 14:11:53 -08:00
parent d0ab25a83c
commit f8b3aaf2ba
8 changed files with 145 additions and 148 deletions
Download Patch File Download Diff File Expand all files Collapse all files

60
net/rds/ib_send.c
View File

@@ -79,14 +79,14 @@ static void rds_ib_send_unmap_rm(struct rds_ib_connection *ic,
rm->data.m_sg, rm->data.m_nents,
DMA_TO_DEVICE);
if (rm->rdma.m_rdma_op.r_active) {
struct rds_rdma_op *op = &rm->rdma.m_rdma_op;
if (rm->rdma.op_active) {
struct rm_rdma_op *op = &rm->rdma;
if (op->r_mapped) {
if (op->op_mapped) {
ib_dma_unmap_sg(ic->i_cm_id->device,
op->r_sg, op->r_nents,
op->r_write ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
op->r_mapped = 0;
op->op_sg, op->op_nents,
op->op_write ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
op->op_mapped = 0;
}
/* If the user asked for a completion notification on this
@@ -111,10 +111,10 @@ static void rds_ib_send_unmap_rm(struct rds_ib_connection *ic,
*/
rds_ib_send_complete(rm, wc_status, rds_rdma_send_complete);
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.op_write)
rds_stats_add(s_send_rdma_bytes, rm->rdma.op_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.op_bytes);
}
if (rm->atomic.op_active) {
@@ -540,10 +540,10 @@ int rds_ib_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.r_active) {
if (rm->rdma.op_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.op_rkey);
rds_message_add_extension(&rm->m_inc.i_hdr,
RDS_EXTHDR_RDMA, &ext_hdr, sizeof(ext_hdr));
}
@@ -576,7 +576,7 @@ int rds_ib_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.r_active && rm->rdma.m_rdma_op.r_fence)
if (rm->rdma.op_active && rm->rdma.op_fence)
send_flags = IB_SEND_FENCE;
/* Each frag gets a header. Msgs may be 0 bytes */
@@ -746,7 +746,7 @@ int rds_ib_xmit_atomic(struct rds_connection *conn, struct rds_message *rm)
* we must fill in s_rm ourselves, so we properly clean up
* on completion.
*/
if (!rm->rdma.m_rdma_op.r_active && !rm->data.op_active)
if (!rm->rdma.op_active && !rm->data.op_active)
send->s_rm = rm;
/* map 8 byte retval buffer to the device */
@@ -788,7 +788,7 @@ out:
return ret;
}
int rds_ib_xmit_rdma(struct rds_connection *conn, struct rds_rdma_op *op)
int rds_ib_xmit_rdma(struct rds_connection *conn, struct rm_rdma_op *op)
{
struct rds_ib_connection *ic = conn->c_transport_data;
struct rds_ib_send_work *send = NULL;
@@ -798,7 +798,7 @@ int rds_ib_xmit_rdma(struct rds_connection *conn, struct rds_rdma_op *op)
struct rds_ib_device *rds_ibdev;
struct scatterlist *scat;
unsigned long len;
u64 remote_addr = op->r_remote_addr;
u64 remote_addr = op->op_remote_addr;
u32 pos;
u32 work_alloc;
u32 i;
@@ -810,25 +810,25 @@ int rds_ib_xmit_rdma(struct rds_connection *conn, struct rds_rdma_op *op)
rds_ibdev = ib_get_client_data(ic->i_cm_id->device, &rds_ib_client);
/* map the message the first time we see it */
if (!op->r_mapped) {
op->r_count = ib_dma_map_sg(ic->i_cm_id->device,
op->r_sg, op->r_nents, (op->r_write) ?
DMA_TO_DEVICE : DMA_FROM_DEVICE);
rdsdebug("ic %p mapping op %p: %d\n", ic, op, op->r_count);
if (op->r_count == 0) {
if (!op->op_mapped) {
op->op_count = ib_dma_map_sg(ic->i_cm_id->device,
op->op_sg, op->op_nents, (op->op_write) ?
DMA_TO_DEVICE : DMA_FROM_DEVICE);
rdsdebug("ic %p mapping op %p: %d\n", ic, op, op->op_count);
if (op->op_count == 0) {
rds_ib_stats_inc(s_ib_tx_sg_mapping_failure);
ret = -ENOMEM; /* XXX ? */
goto out;
}
op->r_mapped = 1;
op->op_mapped = 1;
}
/*
* Instead of knowing how to return a partial rdma read/write we insist that there
* be enough work requests to send the entire message.
*/
i = ceil(op->r_count, rds_ibdev->max_sge);
i = ceil(op->op_count, rds_ibdev->max_sge);
work_alloc = rds_ib_ring_alloc(&ic->i_send_ring, i, &pos);
if (work_alloc != i) {
@@ -841,19 +841,19 @@ int rds_ib_xmit_rdma(struct rds_connection *conn, struct rds_rdma_op *op)
send = &ic->i_sends[pos];
first = send;
prev = NULL;
scat = &op->r_sg[0];
scat = &op->op_sg[0];
sent = 0;
num_sge = op->r_count;
num_sge = op->op_count;
for (i = 0; i < work_alloc && scat != &op->r_sg[op->r_count]; i++) {
for (i = 0; i < work_alloc && scat != &op->op_sg[op->op_count]; i++) {
send->s_wr.send_flags = 0;
send->s_queued = jiffies;
rds_ib_set_wr_signal_state(ic, send, op->r_notify);
rds_ib_set_wr_signal_state(ic, send, op->op_notify);
send->s_wr.opcode = op->r_write ? IB_WR_RDMA_WRITE : IB_WR_RDMA_READ;
send->s_wr.opcode = op->op_write ? IB_WR_RDMA_WRITE : IB_WR_RDMA_READ;
send->s_wr.wr.rdma.remote_addr = remote_addr;
send->s_wr.wr.rdma.rkey = op->r_key;
send->s_wr.wr.rdma.rkey = op->op_rkey;
send->s_op = op;
if (num_sge > rds_ibdev->max_sge) {
@@ -868,7 +868,7 @@ int rds_ib_xmit_rdma(struct rds_connection *conn, struct rds_rdma_op *op)
if (prev)
prev->s_wr.next = &send->s_wr;
for (j = 0; j < send->s_wr.num_sge && scat != &op->r_sg[op->r_count]; j++) {
for (j = 0; j < send->s_wr.num_sge && scat != &op->op_sg[op->op_count]; j++) {
len = ib_sg_dma_len(ic->i_cm_id->device, scat);
send->s_sge[j].addr =
ib_sg_dma_address(ic->i_cm_id->device, scat);