From: Chuck Lever <chuck.lever@xxxxxxxxxx>
The original code was designed so that most calls to
rpcrdma_rep_create() would occur on the NUMA node that the device
preferred. There are a few cases where that's not possible, so
those reps are marked as temporary.
However, we have the device (and its preferred node) already in
rpcrdma_rep_create(), so let's use that.
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
net/sunrpc/xprtrdma/rpc_rdma.c | 3 +-
net/sunrpc/xprtrdma/verbs.c | 57 ++++++++++++++-------------------
net/sunrpc/xprtrdma/xprt_rdma.h | 3 +-
3 files changed, 26 insertions(+), 37 deletions(-)
diff --git a/net/sunrpc/xprtrdma/rpc_rdma.c b/net/sunrpc/xprtrdma/rpc_rdma.c
index 190a4de239c8..1478c41c7e9d 100644
--- a/net/sunrpc/xprtrdma/rpc_rdma.c
+++ b/net/sunrpc/xprtrdma/rpc_rdma.c
@@ -1471,8 +1471,7 @@ void rpcrdma_reply_handler(struct rpcrdma_rep *rep)
credits = 1; /* don't deadlock */
else if (credits > r_xprt->rx_ep->re_max_requests)
credits = r_xprt->rx_ep->re_max_requests;
- rpcrdma_post_recvs(r_xprt, credits + (buf->rb_bc_srv_max_requests << 1),
- false);
+ rpcrdma_post_recvs(r_xprt, credits + (buf->rb_bc_srv_max_requests << 1));
if (buf->rb_credits != credits)
rpcrdma_update_cwnd(r_xprt, credits);
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 4f8d7efa469f..c6d9d94c28ba 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -69,13 +69,15 @@ static void rpcrdma_sendctx_put_locked(struct rpcrdma_xprt *r_xprt,
struct rpcrdma_sendctx *sc);
static int rpcrdma_reqs_setup(struct rpcrdma_xprt *r_xprt);
static void rpcrdma_reqs_reset(struct rpcrdma_xprt *r_xprt);
-static void rpcrdma_rep_destroy(struct rpcrdma_rep *rep);
static void rpcrdma_reps_unmap(struct rpcrdma_xprt *r_xprt);
static void rpcrdma_mrs_create(struct rpcrdma_xprt *r_xprt);
static void rpcrdma_mrs_destroy(struct rpcrdma_xprt *r_xprt);
static void rpcrdma_ep_get(struct rpcrdma_ep *ep);
static int rpcrdma_ep_put(struct rpcrdma_ep *ep);
static struct rpcrdma_regbuf *
+rpcrdma_regbuf_alloc_node(size_t size, enum dma_data_direction direction,
+ int node);
+static struct rpcrdma_regbuf *
rpcrdma_regbuf_alloc(size_t size, enum dma_data_direction direction);
static void rpcrdma_regbuf_dma_unmap(struct rpcrdma_regbuf *rb);
static void rpcrdma_regbuf_free(struct rpcrdma_regbuf *rb);
@@ -501,7 +503,7 @@ int rpcrdma_xprt_connect(struct rpcrdma_xprt *r_xprt)
* outstanding Receives.
*/
rpcrdma_ep_get(ep);
- rpcrdma_post_recvs(r_xprt, 1, true);
+ rpcrdma_post_recvs(r_xprt, 1);
rc = rdma_connect(ep->re_id, &ep->re_remote_cma);
if (rc)
@@ -920,18 +922,20 @@ static void rpcrdma_reqs_reset(struct rpcrdma_xprt *r_xprt)
}
static noinline
-struct rpcrdma_rep *rpcrdma_rep_create(struct rpcrdma_xprt *r_xprt,
- bool temp)
+struct rpcrdma_rep *rpcrdma_rep_create(struct rpcrdma_xprt *r_xprt)
{
struct rpcrdma_buffer *buf = &r_xprt->rx_buf;
+ struct rpcrdma_ep *ep = r_xprt->rx_ep;
+ struct ib_device *device = ep->re_id->device;
struct rpcrdma_rep *rep;
rep = kzalloc(sizeof(*rep), XPRTRDMA_GFP_FLAGS);
if (rep == NULL)
goto out;
- rep->rr_rdmabuf = rpcrdma_regbuf_alloc(r_xprt->rx_ep->re_inline_recv,
- DMA_FROM_DEVICE);
+ rep->rr_rdmabuf = rpcrdma_regbuf_alloc_node(ep->re_inline_recv,
+ DMA_FROM_DEVICE,
+ ibdev_to_node(device));
if (!rep->rr_rdmabuf)
goto out_free;
@@ -946,7 +950,6 @@ struct rpcrdma_rep *rpcrdma_rep_create(struct rpcrdma_xprt *r_xprt,
rep->rr_recv_wr.wr_cqe = &rep->rr_cqe;
rep->rr_recv_wr.sg_list = &rep->rr_rdmabuf->rg_iov;
rep->rr_recv_wr.num_sge = 1;
- rep->rr_temp = temp;
spin_lock(&buf->rb_lock);
list_add(&rep->rr_all, &buf->rb_all_reps);
@@ -965,17 +968,6 @@ static void rpcrdma_rep_free(struct rpcrdma_rep *rep)
kfree(rep);
}
-static void rpcrdma_rep_destroy(struct rpcrdma_rep *rep)
-{
- struct rpcrdma_buffer *buf = &rep->rr_rxprt->rx_buf;
-
- spin_lock(&buf->rb_lock);
- list_del(&rep->rr_all);
- spin_unlock(&buf->rb_lock);
-
- rpcrdma_rep_free(rep);
-}
-
static struct rpcrdma_rep *rpcrdma_rep_get_locked(struct rpcrdma_buffer *buf)
{
struct llist_node *node;
@@ -1007,10 +999,8 @@ static void rpcrdma_reps_unmap(struct rpcrdma_xprt *r_xprt)
struct rpcrdma_buffer *buf = &r_xprt->rx_buf;
struct rpcrdma_rep *rep;
- list_for_each_entry(rep, &buf->rb_all_reps, rr_all) {
+ list_for_each_entry(rep, &buf->rb_all_reps, rr_all)
rpcrdma_regbuf_dma_unmap(rep->rr_rdmabuf);
- rep->rr_temp = true; /* Mark this rep for destruction */
- }
}
static void rpcrdma_reps_destroy(struct rpcrdma_buffer *buf)
@@ -1227,14 +1217,15 @@ void rpcrdma_buffer_put(struct rpcrdma_buffer *buffers, struct rpcrdma_req *req)
* or Replies they may be registered externally via frwr_map.
*/
static struct rpcrdma_regbuf *
-rpcrdma_regbuf_alloc(size_t size, enum dma_data_direction direction)
+rpcrdma_regbuf_alloc_node(size_t size, enum dma_data_direction direction,
+ int node)
{
struct rpcrdma_regbuf *rb;
- rb = kmalloc(sizeof(*rb), XPRTRDMA_GFP_FLAGS);
+ rb = kmalloc_node(sizeof(*rb), XPRTRDMA_GFP_FLAGS, node);
if (!rb)
return NULL;
- rb->rg_data = kmalloc(size, XPRTRDMA_GFP_FLAGS);
+ rb->rg_data = kmalloc_node(size, XPRTRDMA_GFP_FLAGS, node);
if (!rb->rg_data) {
kfree(rb);
return NULL;
@@ -1246,6 +1237,12 @@ rpcrdma_regbuf_alloc(size_t size, enum dma_data_direction direction)
return rb;
}
+static struct rpcrdma_regbuf *
+rpcrdma_regbuf_alloc(size_t size, enum dma_data_direction direction)
+{
+ return rpcrdma_regbuf_alloc_node(size, direction, NUMA_NO_NODE);
+}
+
/**
* rpcrdma_regbuf_realloc - re-allocate a SEND/RECV buffer
* @rb: regbuf to reallocate
@@ -1323,10 +1320,9 @@ static void rpcrdma_regbuf_free(struct rpcrdma_regbuf *rb)
* rpcrdma_post_recvs - Refill the Receive Queue
* @r_xprt: controlling transport instance
* @needed: current credit grant
- * @temp: mark Receive buffers to be deleted after one use
*
*/
-void rpcrdma_post_recvs(struct rpcrdma_xprt *r_xprt, int needed, bool temp)
+void rpcrdma_post_recvs(struct rpcrdma_xprt *r_xprt, int needed)
{
struct rpcrdma_buffer *buf = &r_xprt->rx_buf;
struct rpcrdma_ep *ep = r_xprt->rx_ep;
@@ -1340,8 +1336,7 @@ void rpcrdma_post_recvs(struct rpcrdma_xprt *r_xprt, int needed, bool temp)
if (likely(ep->re_receive_count > needed))
goto out;
needed -= ep->re_receive_count;
- if (!temp)
- needed += RPCRDMA_MAX_RECV_BATCH;
+ needed += RPCRDMA_MAX_RECV_BATCH;
if (atomic_inc_return(&ep->re_receiving) > 1)
goto out;
@@ -1350,12 +1345,8 @@ void rpcrdma_post_recvs(struct rpcrdma_xprt *r_xprt, int needed, bool temp)
wr = NULL;
while (needed) {
rep = rpcrdma_rep_get_locked(buf);
- if (rep && rep->rr_temp) {
- rpcrdma_rep_destroy(rep);
- continue;
- }
if (!rep)
- rep = rpcrdma_rep_create(r_xprt, temp);
+ rep = rpcrdma_rep_create(r_xprt);
if (!rep)
break;
if (!rpcrdma_regbuf_dma_map(r_xprt, rep->rr_rdmabuf)) {
diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h
index da409450dfc0..08bda29ed953 100644
--- a/net/sunrpc/xprtrdma/xprt_rdma.h
+++ b/net/sunrpc/xprtrdma/xprt_rdma.h
@@ -198,7 +198,6 @@ struct rpcrdma_rep {
__be32 rr_proc;
int rr_wc_flags;
u32 rr_inv_rkey;
- bool rr_temp;
struct rpcrdma_regbuf *rr_rdmabuf;
struct rpcrdma_xprt *rr_rxprt;
struct rpc_rqst *rr_rqst;
@@ -466,7 +465,7 @@ void rpcrdma_flush_disconnect(struct rpcrdma_xprt *r_xprt, struct ib_wc *wc);
int rpcrdma_xprt_connect(struct rpcrdma_xprt *r_xprt);
void rpcrdma_xprt_disconnect(struct rpcrdma_xprt *r_xprt);
-void rpcrdma_post_recvs(struct rpcrdma_xprt *r_xprt, int needed, bool temp);
+void rpcrdma_post_recvs(struct rpcrdma_xprt *r_xprt, int needed);
/*
* Buffer calls - xprtrdma/verbs.c
--
2.44.0
