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Commit 86c4ccd9 authored by Chuck Lever's avatar Chuck Lever Committed by Anna Schumaker
Browse files

xprtrdma: Eliminate struct rpcrdma_create_data_internal 



Clean up.

Move the remaining field in rpcrdma_create_data_internal so the
structure can be removed.

Signed-off-by: default avatarChuck Lever <chuck.lever@oracle.com>
Signed-off-by: default avatarAnna Schumaker <Anna.Schumaker@Netapp.com>
parent 94087e97

net/sunrpc/xprtrdma/frwr_ops.c

+9 −12
Original line number Diff line number Diff line
@@ -194,12 +194,11 @@ int frwr_init_mr(struct rpcrdma_ia *ia, struct rpcrdma_mr *mr) 
 * frwr_open - Prepare an endpoint for use with FRWR

 * @ia: interface adapter this endpoint will use

 * @ep: endpoint to prepare

 * @cdata: transport parameters

 *

 * On success, sets:

 *	ep->rep_attr.cap.max_send_wr

 *	ep->rep_attr.cap.max_recv_wr

 *	cdata->max_requests

 *	ep->rep_max_requests

 *	ia->ri_max_segs

 *

 * And these FRWR-related fields:
@@ -208,8 +207,7 @@ int frwr_init_mr(struct rpcrdma_ia *ia, struct rpcrdma_mr *mr) 
 *

 * On failure, a negative errno is returned.

 */

int frwr_open(struct rpcrdma_ia *ia, struct rpcrdma_ep *ep,

	      struct rpcrdma_create_data_internal *cdata)

int frwr_open(struct rpcrdma_ia *ia, struct rpcrdma_ep *ep)

{

	struct ib_device_attr *attrs = &ia->ri_id->device->attrs;

	int max_qp_wr, depth, delta;
@@ -258,19 +256,18 @@ int frwr_open(struct rpcrdma_ia *ia, struct rpcrdma_ep *ep, 
	max_qp_wr -= 1;

	if (max_qp_wr < RPCRDMA_MIN_SLOT_TABLE)

		return -ENOMEM;

	if (cdata->max_requests > max_qp_wr)

		cdata->max_requests = max_qp_wr;

	ep->rep_attr.cap.max_send_wr = cdata->max_requests * depth;

	if (ep->rep_max_requests > max_qp_wr)

		ep->rep_max_requests = max_qp_wr;

	ep->rep_attr.cap.max_send_wr = ep->rep_max_requests * depth;

	if (ep->rep_attr.cap.max_send_wr > max_qp_wr) {

		cdata->max_requests = max_qp_wr / depth;

		if (!cdata->max_requests)

		ep->rep_max_requests = max_qp_wr / depth;

		if (!ep->rep_max_requests)

			return -EINVAL;

		ep->rep_attr.cap.max_send_wr = cdata->max_requests *

					       depth;

		ep->rep_attr.cap.max_send_wr = ep->rep_max_requests * depth;

	}

	ep->rep_attr.cap.max_send_wr += RPCRDMA_BACKWARD_WRS;

	ep->rep_attr.cap.max_send_wr += 1; /* for ib_drain_sq */

	ep->rep_attr.cap.max_recv_wr = cdata->max_requests;

	ep->rep_attr.cap.max_recv_wr = ep->rep_max_requests;

	ep->rep_attr.cap.max_recv_wr += RPCRDMA_BACKWARD_WRS;

	ep->rep_attr.cap.max_recv_wr += 1; /* for ib_drain_rq */

net/sunrpc/xprtrdma/transport.c

+4 −23
Original line number Diff line number Diff line
@@ -68,7 +68,7 @@ 
 * tunables

 */



static unsigned int xprt_rdma_slot_table_entries = RPCRDMA_DEF_SLOT_TABLE;

unsigned int xprt_rdma_slot_table_entries = RPCRDMA_DEF_SLOT_TABLE;

unsigned int xprt_rdma_max_inline_read = RPCRDMA_DEF_INLINE;

unsigned int xprt_rdma_max_inline_write = RPCRDMA_DEF_INLINE;

unsigned int xprt_rdma_memreg_strategy		= RPCRDMA_FRWR;
@@ -288,7 +288,7 @@ xprt_rdma_destroy(struct rpc_xprt *xprt) 


	cancel_delayed_work_sync(&r_xprt->rx_connect_worker);



	rpcrdma_ep_destroy(&r_xprt->rx_ep, &r_xprt->rx_ia);

	rpcrdma_ep_destroy(r_xprt);

	rpcrdma_buffer_destroy(&r_xprt->rx_buf);

	rpcrdma_ia_close(&r_xprt->rx_ia);
@@ -311,10 +311,8 @@ static const struct rpc_timeout xprt_rdma_default_timeout = { 
static struct rpc_xprt *

xprt_setup_rdma(struct xprt_create *args)

{

	struct rpcrdma_create_data_internal cdata;

	struct rpc_xprt *xprt;

	struct rpcrdma_xprt *new_xprt;

	struct rpcrdma_ep *new_ep;

	struct sockaddr *sap;

	int rc;
@@ -349,29 +347,12 @@ xprt_setup_rdma(struct xprt_create *args) 
		xprt_set_bound(xprt);

	xprt_rdma_format_addresses(xprt, sap);



	cdata.max_requests = xprt_rdma_slot_table_entries;



	/*

	 * Create new transport instance, which includes initialized

	 *  o ia

	 *  o endpoint

	 *  o buffers

	 */



	new_xprt = rpcx_to_rdmax(xprt);



	rc = rpcrdma_ia_open(new_xprt);

	if (rc)

		goto out1;



	/*

	 * initialize and create ep

	 */

	new_xprt->rx_data = cdata;

	new_ep = &new_xprt->rx_ep;



	rc = rpcrdma_ep_create(&new_xprt->rx_ep,

				&new_xprt->rx_ia, &new_xprt->rx_data);

	rc = rpcrdma_ep_create(new_xprt);

	if (rc)

		goto out2;
@@ -402,7 +383,7 @@ xprt_setup_rdma(struct xprt_create *args) 
	rpcrdma_buffer_destroy(&new_xprt->rx_buf);

	rc = -ENODEV;

out3:

	rpcrdma_ep_destroy(new_ep, &new_xprt->rx_ia);

	rpcrdma_ep_destroy(new_xprt);

out2:

	rpcrdma_ia_close(&new_xprt->rx_ia);

out1:

net/sunrpc/xprtrdma/verbs.c

+28 −19
Original line number Diff line number Diff line
@@ -476,18 +476,22 @@ rpcrdma_ia_close(struct rpcrdma_ia *ia) 
	ia->ri_pd = NULL;

}



/*

 * Create unconnected endpoint.

/**

 * rpcrdma_ep_create - Create unconnected endpoint

 * @r_xprt: transport to instantiate

 *

 * Returns zero on success, or a negative errno.

 */

int

rpcrdma_ep_create(struct rpcrdma_ep *ep, struct rpcrdma_ia *ia,

		  struct rpcrdma_create_data_internal *cdata)

int rpcrdma_ep_create(struct rpcrdma_xprt *r_xprt)

{

	struct rpcrdma_ep *ep = &r_xprt->rx_ep;

	struct rpcrdma_ia *ia = &r_xprt->rx_ia;

	struct rpcrdma_connect_private *pmsg = &ep->rep_cm_private;

	struct ib_cq *sendcq, *recvcq;

	unsigned int max_sge;

	int rc;



	ep->rep_max_requests = xprt_rdma_slot_table_entries;

	ep->rep_inline_send = xprt_rdma_max_inline_write;

	ep->rep_inline_recv = xprt_rdma_max_inline_read;
@@ -499,7 +503,7 @@ rpcrdma_ep_create(struct rpcrdma_ep *ep, struct rpcrdma_ia *ia, 
	}

	ia->ri_max_send_sges = max_sge;



	rc = frwr_open(ia, ep, cdata);

	rc = frwr_open(ia, ep);

	if (rc)

		return rc;
@@ -521,7 +525,7 @@ rpcrdma_ep_create(struct rpcrdma_ep *ep, struct rpcrdma_ia *ia, 
		ep->rep_attr.cap.max_send_sge,

		ep->rep_attr.cap.max_recv_sge);



	ep->rep_send_batch = cdata->max_requests >> 3;

	ep->rep_send_batch = ep->rep_max_requests >> 3;

	ep->rep_send_count = ep->rep_send_batch;

	init_waitqueue_head(&ep->rep_connect_wait);

	ep->rep_receive_count = 0;
@@ -584,16 +588,16 @@ rpcrdma_ep_create(struct rpcrdma_ep *ep, struct rpcrdma_ia *ia, 
	return rc;

}



/*

 * rpcrdma_ep_destroy

/**

 * rpcrdma_ep_destroy - Disconnect and destroy endpoint.

 * @r_xprt: transport instance to shut down

 *

 * Disconnect and destroy endpoint. After this, the only

 * valid operations on the ep are to free it (if dynamically

 * allocated) or re-create it.

 */

void

rpcrdma_ep_destroy(struct rpcrdma_ep *ep, struct rpcrdma_ia *ia)

void rpcrdma_ep_destroy(struct rpcrdma_xprt *r_xprt)

{

	struct rpcrdma_ep *ep = &r_xprt->rx_ep;

	struct rpcrdma_ia *ia = &r_xprt->rx_ia;



	if (ia->ri_id && ia->ri_id->qp) {

		rpcrdma_ep_disconnect(ep, ia);

		rdma_destroy_qp(ia->ri_id);
@@ -623,7 +627,7 @@ rpcrdma_ep_recreate_xprt(struct rpcrdma_xprt *r_xprt, 
		goto out1;



	rc = -ENOMEM;

	err = rpcrdma_ep_create(ep, ia, &r_xprt->rx_data);

	err = rpcrdma_ep_create(r_xprt);

	if (err) {

		pr_err("rpcrdma: rpcrdma_ep_create returned %d\n", err);

		goto out2;
@@ -640,7 +644,7 @@ rpcrdma_ep_recreate_xprt(struct rpcrdma_xprt *r_xprt, 
	return 0;



out3:

	rpcrdma_ep_destroy(ep, ia);

	rpcrdma_ep_destroy(r_xprt);

out2:

	rpcrdma_ia_close(ia);

out1:
@@ -1082,14 +1086,19 @@ static bool rpcrdma_rep_create(struct rpcrdma_xprt *r_xprt, bool temp) 
	return false;

}



int

rpcrdma_buffer_create(struct rpcrdma_xprt *r_xprt)

/**

 * rpcrdma_buffer_create - Create initial set of req/rep objects

 * @r_xprt: transport instance to (re)initialize

 *

 * Returns zero on success, otherwise a negative errno.

 */

int rpcrdma_buffer_create(struct rpcrdma_xprt *r_xprt)

{

	struct rpcrdma_buffer *buf = &r_xprt->rx_buf;

	int i, rc;



	buf->rb_flags = 0;

	buf->rb_max_requests = r_xprt->rx_data.max_requests;

	buf->rb_max_requests = r_xprt->rx_ep.rep_max_requests;

	buf->rb_bc_srv_max_requests = 0;

	spin_lock_init(&buf->rb_mrlock);

	spin_lock_init(&buf->rb_lock);

net/sunrpc/xprtrdma/xprt_rdma.h

+5 −17
Original line number Diff line number Diff line
@@ -97,6 +97,7 @@ struct rpcrdma_ep { 
	wait_queue_head_t 	rep_connect_wait;

	struct rpcrdma_connect_private	rep_cm_private;

	struct rdma_conn_param	rep_remote_cma;

	unsigned int		rep_max_requests;	/* set by /proc */

	unsigned int		rep_inline_send;	/* negotiated */

	unsigned int		rep_inline_recv;	/* negotiated */

	int			rep_receive_count;
@@ -413,16 +414,6 @@ enum { 
	RPCRDMA_BUF_F_EMPTY_SCQ = 0,

};



/*

 * Internal structure for transport instance creation. This

 * exists primarily for modularity.

 *

 * This data should be set with mount options

 */

struct rpcrdma_create_data_internal {

	unsigned int	max_requests;	/* max requests (slots) in flight */

};



/*

 * Statistics for RPCRDMA

 */
@@ -467,13 +458,11 @@ struct rpcrdma_xprt { 
	struct rpcrdma_ia	rx_ia;

	struct rpcrdma_ep	rx_ep;

	struct rpcrdma_buffer	rx_buf;

	struct rpcrdma_create_data_internal rx_data;

	struct delayed_work	rx_connect_worker;

	struct rpcrdma_stats	rx_stats;

};



#define rpcx_to_rdmax(x) container_of(x, struct rpcrdma_xprt, rx_xprt)

#define rpcx_to_rdmad(x) (rpcx_to_rdmax(x)->rx_data)



static inline const char *

rpcrdma_addrstr(const struct rpcrdma_xprt *r_xprt)
@@ -507,9 +496,8 @@ void rpcrdma_ia_close(struct rpcrdma_ia *); 
/*

 * Endpoint calls - xprtrdma/verbs.c

 */

int rpcrdma_ep_create(struct rpcrdma_ep *, struct rpcrdma_ia *,

				struct rpcrdma_create_data_internal *);

void rpcrdma_ep_destroy(struct rpcrdma_ep *, struct rpcrdma_ia *);

int rpcrdma_ep_create(struct rpcrdma_xprt *r_xprt);

void rpcrdma_ep_destroy(struct rpcrdma_xprt *r_xprt);

int rpcrdma_ep_connect(struct rpcrdma_ep *, struct rpcrdma_ia *);

void rpcrdma_ep_disconnect(struct rpcrdma_ep *, struct rpcrdma_ia *);
@@ -583,8 +571,7 @@ rpcrdma_data_dir(bool writing) 
/* Memory registration calls xprtrdma/frwr_ops.c

 */

bool frwr_is_supported(struct ib_device *device);

int frwr_open(struct rpcrdma_ia *ia, struct rpcrdma_ep *ep,

	      struct rpcrdma_create_data_internal *cdata);

int frwr_open(struct rpcrdma_ia *ia, struct rpcrdma_ep *ep);

int frwr_init_mr(struct rpcrdma_ia *ia, struct rpcrdma_mr *mr);

void frwr_release_mr(struct rpcrdma_mr *mr);

size_t frwr_maxpages(struct rpcrdma_xprt *r_xprt);
@@ -630,6 +617,7 @@ static inline void rpcrdma_set_xdrlen(struct xdr_buf *xdr, size_t len) 


/* RPC/RDMA module init - xprtrdma/transport.c

 */

extern unsigned int xprt_rdma_slot_table_entries;

extern unsigned int xprt_rdma_max_inline_read;

extern unsigned int xprt_rdma_max_inline_write;

void xprt_rdma_format_addresses(struct rpc_xprt *xprt, struct sockaddr *sap);