net/mlx5: Move SRQ functions to RDMA part

There is no need to keep SRQ which is RDMA object in mlx5_core.
In this patch, we partially move the execution code, while next patches
will move table initialization/release logic too.
Reviewed-by: NMark Bloch <markb@mellanox.com>
Signed-off-by: NLeon Romanovsky <leonro@mellanox.com>

drivers/infiniband/hw/mlx5/Makefile

 obj-$(CONFIG_MLX5_INFINIBAND)	+= mlx5_ib.o
 
-mlx5_ib-y :=	main.o cq.o doorbell.o qp.o mem.o srq.o mr.o ah.o mad.o gsi.o ib_virt.o cmd.o cong.o
+mlx5_ib-y :=	main.o cq.o doorbell.o qp.o mem.o srq_cmd.o \
+		srq.o mr.o ah.o mad.o gsi.o ib_virt.o cmd.o \
+		cong.o
 mlx5_ib-$(CONFIG_INFINIBAND_ON_DEMAND_PAGING) += odp.o
 mlx5_ib-$(CONFIG_MLX5_ESWITCH) += ib_rep.o
 mlx5_ib-$(CONFIG_INFINIBAND_USER_ACCESS) += devx.o

drivers/infiniband/hw/mlx5/cq.c

@@ -35,6 +35,7 @@
 #include <rdma/ib_user_verbs.h>
 #include <rdma/ib_cache.h>
 #include "mlx5_ib.h"
+#include "srq.h"
 
 static void mlx5_ib_cq_comp(struct mlx5_core_cq *cq)
 {

drivers/infiniband/hw/mlx5/srq.c

@@ -9,8 +9,8 @@
 #include <linux/slab.h>
 #include <rdma/ib_umem.h>
 #include <rdma/ib_user_verbs.h>
-
 #include "mlx5_ib.h"
+#include "srq.h"
 
 /* not supported currently */
 static int srq_signature;

drivers/infiniband/hw/mlx5/srq.h

+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
+/*
+ * Copyright (c) 2013-2018, Mellanox Technologies. All rights reserved.
+ */
+
+#ifndef MLX5_IB_SRQ_H
+#define MLX5_IB_SRQ_H
+
+enum {
+	MLX5_SRQ_FLAG_ERR    = (1 << 0),
+	MLX5_SRQ_FLAG_WQ_SIG = (1 << 1),
+	MLX5_SRQ_FLAG_RNDV   = (1 << 2),
+};
+
+struct mlx5_srq_attr {
+	u32 type;
+	u32 flags;
+	u32 log_size;
+	u32 wqe_shift;
+	u32 log_page_size;
+	u32 wqe_cnt;
+	u32 srqn;
+	u32 xrcd;
+	u32 page_offset;
+	u32 cqn;
+	u32 pd;
+	u32 lwm;
+	u32 user_index;
+	u64 db_record;
+	__be64 *pas;
+	u32 tm_log_list_size;
+	u32 tm_next_tag;
+	u32 tm_hw_phase_cnt;
+	u32 tm_sw_phase_cnt;
+	u16 uid;
+};
+
+int mlx5_core_create_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
+			 struct mlx5_srq_attr *in);
+int mlx5_core_destroy_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq);
+int mlx5_core_query_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
+			struct mlx5_srq_attr *out);
+int mlx5_core_arm_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
+		      u16 lwm, int is_srq);
+struct mlx5_core_srq *mlx5_core_get_srq(struct mlx5_core_dev *dev, u32 srqn);
+#endif /* MLX5_IB_SRQ_H */

drivers/infiniband/hw/mlx5/srq_cmd.c

+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+/*
+ * Copyright (c) 2013-2018, Mellanox Technologies inc.  All rights reserved.
+ */
+
+#include <linux/kernel.h>
+#include <linux/mlx5/driver.h>
+#include <linux/mlx5/cmd.h>
+#include "srq.h"
+
+static int get_pas_size(struct mlx5_srq_attr *in)
+{
+	u32 log_page_size = in->log_page_size + 12;
+	u32 log_srq_size  = in->log_size;
+	u32 log_rq_stride = in->wqe_shift;
+	u32 page_offset   = in->page_offset;
+	u32 po_quanta	  = 1 << (log_page_size - 6);
+	u32 rq_sz	  = 1 << (log_srq_size + 4 + log_rq_stride);
+	u32 page_size	  = 1 << log_page_size;
+	u32 rq_sz_po      = rq_sz + (page_offset * po_quanta);
+	u32 rq_num_pas    = DIV_ROUND_UP(rq_sz_po, page_size);
+
+	return rq_num_pas * sizeof(u64);
+}
+
+static void set_wq(void *wq, struct mlx5_srq_attr *in)
+{
+	MLX5_SET(wq,   wq, wq_signature,  !!(in->flags
+		 & MLX5_SRQ_FLAG_WQ_SIG));
+	MLX5_SET(wq,   wq, log_wq_pg_sz,  in->log_page_size);
+	MLX5_SET(wq,   wq, log_wq_stride, in->wqe_shift + 4);
+	MLX5_SET(wq,   wq, log_wq_sz,     in->log_size);
+	MLX5_SET(wq,   wq, page_offset,   in->page_offset);
+	MLX5_SET(wq,   wq, lwm,		  in->lwm);
+	MLX5_SET(wq,   wq, pd,		  in->pd);
+	MLX5_SET64(wq, wq, dbr_addr,	  in->db_record);
+}
+
+static void set_srqc(void *srqc, struct mlx5_srq_attr *in)
+{
+	MLX5_SET(srqc,   srqc, wq_signature,  !!(in->flags
+		 & MLX5_SRQ_FLAG_WQ_SIG));
+	MLX5_SET(srqc,   srqc, log_page_size, in->log_page_size);
+	MLX5_SET(srqc,   srqc, log_rq_stride, in->wqe_shift);
+	MLX5_SET(srqc,   srqc, log_srq_size,  in->log_size);
+	MLX5_SET(srqc,   srqc, page_offset,   in->page_offset);
+	MLX5_SET(srqc,	 srqc, lwm,	      in->lwm);
+	MLX5_SET(srqc,	 srqc, pd,	      in->pd);
+	MLX5_SET64(srqc, srqc, dbr_addr,      in->db_record);
+	MLX5_SET(srqc,	 srqc, xrcd,	      in->xrcd);
+	MLX5_SET(srqc,	 srqc, cqn,	      in->cqn);
+}
+
+static void get_wq(void *wq, struct mlx5_srq_attr *in)
+{
+	if (MLX5_GET(wq, wq, wq_signature))
+		in->flags &= MLX5_SRQ_FLAG_WQ_SIG;
+	in->log_page_size = MLX5_GET(wq,   wq, log_wq_pg_sz);
+	in->wqe_shift	  = MLX5_GET(wq,   wq, log_wq_stride) - 4;
+	in->log_size	  = MLX5_GET(wq,   wq, log_wq_sz);
+	in->page_offset   = MLX5_GET(wq,   wq, page_offset);
+	in->lwm		  = MLX5_GET(wq,   wq, lwm);
+	in->pd		  = MLX5_GET(wq,   wq, pd);
+	in->db_record	  = MLX5_GET64(wq, wq, dbr_addr);
+}
+
+static void get_srqc(void *srqc, struct mlx5_srq_attr *in)
+{
+	if (MLX5_GET(srqc, srqc, wq_signature))
+		in->flags &= MLX5_SRQ_FLAG_WQ_SIG;
+	in->log_page_size = MLX5_GET(srqc,   srqc, log_page_size);
+	in->wqe_shift	  = MLX5_GET(srqc,   srqc, log_rq_stride);
+	in->log_size	  = MLX5_GET(srqc,   srqc, log_srq_size);
+	in->page_offset   = MLX5_GET(srqc,   srqc, page_offset);
+	in->lwm		  = MLX5_GET(srqc,   srqc, lwm);
+	in->pd		  = MLX5_GET(srqc,   srqc, pd);
+	in->db_record	  = MLX5_GET64(srqc, srqc, dbr_addr);
+}
+
+struct mlx5_core_srq *mlx5_core_get_srq(struct mlx5_core_dev *dev, u32 srqn)
+{
+	struct mlx5_srq_table *table = &dev->priv.srq_table;
+	struct mlx5_core_srq *srq;
+
+	spin_lock(&table->lock);
+
+	srq = radix_tree_lookup(&table->tree, srqn);
+	if (srq)
+		atomic_inc(&srq->refcount);
+
+	spin_unlock(&table->lock);
+
+	return srq;
+}
+
+static int create_srq_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
+			  struct mlx5_srq_attr *in)
+{
+	u32 create_out[MLX5_ST_SZ_DW(create_srq_out)] = {0};
+	void *create_in;
+	void *srqc;
+	void *pas;
+	int pas_size;
+	int inlen;
+	int err;
+
+	pas_size  = get_pas_size(in);
+	inlen	  = MLX5_ST_SZ_BYTES(create_srq_in) + pas_size;
+	create_in = kvzalloc(inlen, GFP_KERNEL);
+	if (!create_in)
+		return -ENOMEM;
+
+	MLX5_SET(create_srq_in, create_in, uid, in->uid);
+	srqc = MLX5_ADDR_OF(create_srq_in, create_in, srq_context_entry);
+	pas = MLX5_ADDR_OF(create_srq_in, create_in, pas);
+
+	set_srqc(srqc, in);
+	memcpy(pas, in->pas, pas_size);
+
+	MLX5_SET(create_srq_in, create_in, opcode,
+		 MLX5_CMD_OP_CREATE_SRQ);
+
+	err = mlx5_cmd_exec(dev, create_in, inlen, create_out,
+			    sizeof(create_out));
+	kvfree(create_in);
+	if (!err) {
+		srq->srqn = MLX5_GET(create_srq_out, create_out, srqn);
+		srq->uid = in->uid;
+	}
+
+	return err;
+}
+
+static int destroy_srq_cmd(struct mlx5_core_dev *dev,
+			   struct mlx5_core_srq *srq)
+{
+	u32 srq_in[MLX5_ST_SZ_DW(destroy_srq_in)] = {0};
+	u32 srq_out[MLX5_ST_SZ_DW(destroy_srq_out)] = {0};
+
+	MLX5_SET(destroy_srq_in, srq_in, opcode,
+		 MLX5_CMD_OP_DESTROY_SRQ);
+	MLX5_SET(destroy_srq_in, srq_in, srqn, srq->srqn);
+	MLX5_SET(destroy_srq_in, srq_in, uid, srq->uid);
+
+	return mlx5_cmd_exec(dev, srq_in, sizeof(srq_in),
+			     srq_out, sizeof(srq_out));
+}
+
+static int arm_srq_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
+		       u16 lwm, int is_srq)
+{
+	u32 srq_in[MLX5_ST_SZ_DW(arm_rq_in)] = {0};
+	u32 srq_out[MLX5_ST_SZ_DW(arm_rq_out)] = {0};
+
+	MLX5_SET(arm_rq_in, srq_in, opcode, MLX5_CMD_OP_ARM_RQ);
+	MLX5_SET(arm_rq_in, srq_in, op_mod, MLX5_ARM_RQ_IN_OP_MOD_SRQ);
+	MLX5_SET(arm_rq_in, srq_in, srq_number, srq->srqn);
+	MLX5_SET(arm_rq_in, srq_in, lwm,      lwm);
+	MLX5_SET(arm_rq_in, srq_in, uid, srq->uid);
+
+	return  mlx5_cmd_exec(dev, srq_in, sizeof(srq_in),
+			      srq_out, sizeof(srq_out));
+}
+
+static int query_srq_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
+			 struct mlx5_srq_attr *out)
+{
+	u32 srq_in[MLX5_ST_SZ_DW(query_srq_in)] = {0};
+	u32 *srq_out;
+	void *srqc;
+	int err;
+
+	srq_out = kvzalloc(MLX5_ST_SZ_BYTES(query_srq_out), GFP_KERNEL);
+	if (!srq_out)
+		return -ENOMEM;
+
+	MLX5_SET(query_srq_in, srq_in, opcode,
+		 MLX5_CMD_OP_QUERY_SRQ);
+	MLX5_SET(query_srq_in, srq_in, srqn, srq->srqn);
+	err =  mlx5_cmd_exec(dev, srq_in, sizeof(srq_in),
+			     srq_out, MLX5_ST_SZ_BYTES(query_srq_out));
+	if (err)
+		goto out;
+
+	srqc = MLX5_ADDR_OF(query_srq_out, srq_out, srq_context_entry);
+	get_srqc(srqc, out);
+	if (MLX5_GET(srqc, srqc, state) != MLX5_SRQC_STATE_GOOD)
+		out->flags |= MLX5_SRQ_FLAG_ERR;
+out:
+	kvfree(srq_out);
+	return err;
+}
+
+static int create_xrc_srq_cmd(struct mlx5_core_dev *dev,
+			      struct mlx5_core_srq *srq,
+			      struct mlx5_srq_attr *in)
+{
+	u32 create_out[MLX5_ST_SZ_DW(create_xrc_srq_out)];
+	void *create_in;
+	void *xrc_srqc;
+	void *pas;
+	int pas_size;
+	int inlen;
+	int err;
+
+	pas_size  = get_pas_size(in);
+	inlen	  = MLX5_ST_SZ_BYTES(create_xrc_srq_in) + pas_size;
+	create_in = kvzalloc(inlen, GFP_KERNEL);
+	if (!create_in)
+		return -ENOMEM;
+
+	MLX5_SET(create_xrc_srq_in, create_in, uid, in->uid);
+	xrc_srqc = MLX5_ADDR_OF(create_xrc_srq_in, create_in,
+				xrc_srq_context_entry);
+	pas	 = MLX5_ADDR_OF(create_xrc_srq_in, create_in, pas);
+
+	set_srqc(xrc_srqc, in);
+	MLX5_SET(xrc_srqc, xrc_srqc, user_index, in->user_index);
+	memcpy(pas, in->pas, pas_size);
+	MLX5_SET(create_xrc_srq_in, create_in, opcode,
+		 MLX5_CMD_OP_CREATE_XRC_SRQ);
+
+	memset(create_out, 0, sizeof(create_out));
+	err = mlx5_cmd_exec(dev, create_in, inlen, create_out,
+			    sizeof(create_out));
+	if (err)
+		goto out;
+
+	srq->srqn = MLX5_GET(create_xrc_srq_out, create_out, xrc_srqn);
+	srq->uid = in->uid;
+out:
+	kvfree(create_in);
+	return err;
+}
+
+static int destroy_xrc_srq_cmd(struct mlx5_core_dev *dev,
+			       struct mlx5_core_srq *srq)
+{
+	u32 xrcsrq_in[MLX5_ST_SZ_DW(destroy_xrc_srq_in)]   = {0};
+	u32 xrcsrq_out[MLX5_ST_SZ_DW(destroy_xrc_srq_out)] = {0};
+
+	MLX5_SET(destroy_xrc_srq_in, xrcsrq_in, opcode,
+		 MLX5_CMD_OP_DESTROY_XRC_SRQ);
+	MLX5_SET(destroy_xrc_srq_in, xrcsrq_in, xrc_srqn, srq->srqn);
+	MLX5_SET(destroy_xrc_srq_in, xrcsrq_in, uid, srq->uid);
+
+	return mlx5_cmd_exec(dev, xrcsrq_in, sizeof(xrcsrq_in),
+			     xrcsrq_out, sizeof(xrcsrq_out));
+}
+
+static int arm_xrc_srq_cmd(struct mlx5_core_dev *dev,
+			   struct mlx5_core_srq *srq, u16 lwm)
+{
+	u32 xrcsrq_in[MLX5_ST_SZ_DW(arm_xrc_srq_in)]   = {0};
+	u32 xrcsrq_out[MLX5_ST_SZ_DW(arm_xrc_srq_out)] = {0};
+
+	MLX5_SET(arm_xrc_srq_in, xrcsrq_in, opcode,   MLX5_CMD_OP_ARM_XRC_SRQ);
+	MLX5_SET(arm_xrc_srq_in, xrcsrq_in, op_mod,   MLX5_ARM_XRC_SRQ_IN_OP_MOD_XRC_SRQ);
+	MLX5_SET(arm_xrc_srq_in, xrcsrq_in, xrc_srqn, srq->srqn);
+	MLX5_SET(arm_xrc_srq_in, xrcsrq_in, lwm,      lwm);
+	MLX5_SET(arm_xrc_srq_in, xrcsrq_in, uid, srq->uid);
+
+	return  mlx5_cmd_exec(dev, xrcsrq_in, sizeof(xrcsrq_in),
+			      xrcsrq_out, sizeof(xrcsrq_out));
+}
+
+static int query_xrc_srq_cmd(struct mlx5_core_dev *dev,
+			     struct mlx5_core_srq *srq,
+			     struct mlx5_srq_attr *out)
+{
+	u32 xrcsrq_in[MLX5_ST_SZ_DW(query_xrc_srq_in)];
+	u32 *xrcsrq_out;
+	void *xrc_srqc;
+	int err;
+
+	xrcsrq_out = kvzalloc(MLX5_ST_SZ_BYTES(query_xrc_srq_out), GFP_KERNEL);
+	if (!xrcsrq_out)
+		return -ENOMEM;
+	memset(xrcsrq_in, 0, sizeof(xrcsrq_in));
+
+	MLX5_SET(query_xrc_srq_in, xrcsrq_in, opcode,
+		 MLX5_CMD_OP_QUERY_XRC_SRQ);
+	MLX5_SET(query_xrc_srq_in, xrcsrq_in, xrc_srqn, srq->srqn);
+
+	err =  mlx5_cmd_exec(dev, xrcsrq_in, sizeof(xrcsrq_in), xrcsrq_out,
+			     MLX5_ST_SZ_BYTES(query_xrc_srq_out));
+	if (err)
+		goto out;
+
+	xrc_srqc = MLX5_ADDR_OF(query_xrc_srq_out, xrcsrq_out,
+				xrc_srq_context_entry);
+	get_srqc(xrc_srqc, out);
+	if (MLX5_GET(xrc_srqc, xrc_srqc, state) != MLX5_XRC_SRQC_STATE_GOOD)
+		out->flags |= MLX5_SRQ_FLAG_ERR;
+
+out:
+	kvfree(xrcsrq_out);
+	return err;
+}
+
+static int mlx5_core_create_rmp(struct mlx5_core_dev *dev, u32 *in, int inlen,
+				u32 *rmpn)
+{
+	u32 out[MLX5_ST_SZ_DW(create_rmp_out)] = { 0 };
+	int err;
+
+	MLX5_SET(create_rmp_in, in, opcode, MLX5_CMD_OP_CREATE_RMP);
+	err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
+	if (!err)
+		*rmpn = MLX5_GET(create_rmp_out, out, rmpn);
+
+	return err;
+}
+
+static int mlx5_core_modify_rmp(struct mlx5_core_dev *dev, u32 *in, int inlen)
+{
+	u32 out[MLX5_ST_SZ_DW(modify_rmp_out)] = {0};
+
+	MLX5_SET(modify_rmp_in, in, opcode, MLX5_CMD_OP_MODIFY_RMP);
+	return mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
+}
+
+static int mlx5_core_query_rmp(struct mlx5_core_dev *dev, u32 rmpn, u32 *out)
+{
+	u32 in[MLX5_ST_SZ_DW(query_rmp_in)] = {0};
+	int outlen = MLX5_ST_SZ_BYTES(query_rmp_out);
+
+	MLX5_SET(query_rmp_in, in, opcode, MLX5_CMD_OP_QUERY_RMP);
+	MLX5_SET(query_rmp_in, in, rmpn,   rmpn);
+	return mlx5_cmd_exec(dev, in, sizeof(in), out, outlen);
+}
+
+static int create_rmp_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
+			  struct mlx5_srq_attr *in)
+{
+	void *create_in;
+	void *rmpc;
+	void *wq;
+	int pas_size;
+	int inlen;
+	int err;
+
+	pas_size = get_pas_size(in);
+	inlen = MLX5_ST_SZ_BYTES(create_rmp_in) + pas_size;
+	create_in = kvzalloc(inlen, GFP_KERNEL);
+	if (!create_in)
+		return -ENOMEM;
+
+	rmpc = MLX5_ADDR_OF(create_rmp_in, create_in, ctx);
+	wq = MLX5_ADDR_OF(rmpc, rmpc, wq);
+
+	MLX5_SET(rmpc, rmpc, state, MLX5_RMPC_STATE_RDY);
+	MLX5_SET(create_rmp_in, create_in, uid, in->uid);
+	set_wq(wq, in);
+	memcpy(MLX5_ADDR_OF(rmpc, rmpc, wq.pas), in->pas, pas_size);
+
+	err = mlx5_core_create_rmp(dev, create_in, inlen, &srq->srqn);
+	if (!err)
+		srq->uid = in->uid;
+
+	kvfree(create_in);
+	return err;
+}
+
+static int destroy_rmp_cmd(struct mlx5_core_dev *dev,
+			   struct mlx5_core_srq *srq)
+{
+	u32 in[MLX5_ST_SZ_DW(destroy_rmp_in)]   = {};
+	u32 out[MLX5_ST_SZ_DW(destroy_rmp_out)] = {};
+
+	MLX5_SET(destroy_rmp_in, in, opcode, MLX5_CMD_OP_DESTROY_RMP);
+	MLX5_SET(destroy_rmp_in, in, rmpn, srq->srqn);
+	MLX5_SET(destroy_rmp_in, in, uid, srq->uid);
+	return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
+}
+
+static int arm_rmp_cmd(struct mlx5_core_dev *dev,
+		       struct mlx5_core_srq *srq,
+		       u16 lwm)
+{
+	void *in;
+	void *rmpc;
+	void *wq;
+	void *bitmask;
+	int err;
+
+	in = kvzalloc(MLX5_ST_SZ_BYTES(modify_rmp_in), GFP_KERNEL);
+	if (!in)
+		return -ENOMEM;
+
+	rmpc =	  MLX5_ADDR_OF(modify_rmp_in,   in,   ctx);
+	bitmask = MLX5_ADDR_OF(modify_rmp_in,   in,   bitmask);
+	wq   =	  MLX5_ADDR_OF(rmpc,	        rmpc, wq);
+
+	MLX5_SET(modify_rmp_in, in,	 rmp_state, MLX5_RMPC_STATE_RDY);
+	MLX5_SET(modify_rmp_in, in,	 rmpn,      srq->srqn);
+	MLX5_SET(modify_rmp_in, in, uid, srq->uid);
+	MLX5_SET(wq,		wq,	 lwm,	    lwm);
+	MLX5_SET(rmp_bitmask,	bitmask, lwm,	    1);
+	MLX5_SET(rmpc, rmpc, state, MLX5_RMPC_STATE_RDY);
+
+	err = mlx5_core_modify_rmp(dev, in, MLX5_ST_SZ_BYTES(modify_rmp_in));
+
+	kvfree(in);
+	return err;
+}
+
+static int query_rmp_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
+			 struct mlx5_srq_attr *out)
+{
+	u32 *rmp_out;
+	void *rmpc;
+	int err;
+
+	rmp_out =  kvzalloc(MLX5_ST_SZ_BYTES(query_rmp_out), GFP_KERNEL);
+	if (!rmp_out)
+		return -ENOMEM;
+
+	err = mlx5_core_query_rmp(dev, srq->srqn, rmp_out);
+	if (err)
+		goto out;
+
+	rmpc = MLX5_ADDR_OF(query_rmp_out, rmp_out, rmp_context);
+	get_wq(MLX5_ADDR_OF(rmpc, rmpc, wq), out);
+	if (MLX5_GET(rmpc, rmpc, state) != MLX5_RMPC_STATE_RDY)
+		out->flags |= MLX5_SRQ_FLAG_ERR;
+
+out:
+	kvfree(rmp_out);
+	return err;
+}
+
+static int create_xrq_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
+			  struct mlx5_srq_attr *in)
+{
+	u32 create_out[MLX5_ST_SZ_DW(create_xrq_out)] = {0};
+	void *create_in;
+	void *xrqc;
+	void *wq;
+	int pas_size;
+	int inlen;
+	int err;
+
+	pas_size = get_pas_size(in);
+	inlen = MLX5_ST_SZ_BYTES(create_xrq_in) + pas_size;
+	create_in = kvzalloc(inlen, GFP_KERNEL);
+	if (!create_in)
+		return -ENOMEM;
+
+	xrqc = MLX5_ADDR_OF(create_xrq_in, create_in, xrq_context);
+	wq = MLX5_ADDR_OF(xrqc, xrqc, wq);
+
+	set_wq(wq, in);
+	memcpy(MLX5_ADDR_OF(xrqc, xrqc, wq.pas), in->pas, pas_size);
+
+	if (in->type == IB_SRQT_TM) {
+		MLX5_SET(xrqc, xrqc, topology, MLX5_XRQC_TOPOLOGY_TAG_MATCHING);
+		if (in->flags & MLX5_SRQ_FLAG_RNDV)
+			MLX5_SET(xrqc, xrqc, offload, MLX5_XRQC_OFFLOAD_RNDV);
+		MLX5_SET(xrqc, xrqc,
+			 tag_matching_topology_context.log_matching_list_sz,
+			 in->tm_log_list_size);
+	}
+	MLX5_SET(xrqc, xrqc, user_index, in->user_index);
+	MLX5_SET(xrqc, xrqc, cqn, in->cqn);
+	MLX5_SET(create_xrq_in, create_in, opcode, MLX5_CMD_OP_CREATE_XRQ);
+	MLX5_SET(create_xrq_in, create_in, uid, in->uid);
+	err = mlx5_cmd_exec(dev, create_in, inlen, create_out,
+			    sizeof(create_out));
+	kvfree(create_in);
+	if (!err) {
+		srq->srqn = MLX5_GET(create_xrq_out, create_out, xrqn);
+		srq->uid = in->uid;
+	}
+
+	return err;
+}
+
+static int destroy_xrq_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq)
+{
+	u32 in[MLX5_ST_SZ_DW(destroy_xrq_in)] = {0};
+	u32 out[MLX5_ST_SZ_DW(destroy_xrq_out)] = {0};
+
+	MLX5_SET(destroy_xrq_in, in, opcode, MLX5_CMD_OP_DESTROY_XRQ);
+	MLX5_SET(destroy_xrq_in, in, xrqn,   srq->srqn);
+	MLX5_SET(destroy_xrq_in, in, uid, srq->uid);
+
+	return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
+}
+
+static int arm_xrq_cmd(struct mlx5_core_dev *dev,
+		       struct mlx5_core_srq *srq,
+		       u16 lwm)
+{
+	u32 out[MLX5_ST_SZ_DW(arm_rq_out)] = {0};
+	u32 in[MLX5_ST_SZ_DW(arm_rq_in)] = {0};
+
+	MLX5_SET(arm_rq_in, in, opcode,     MLX5_CMD_OP_ARM_RQ);
+	MLX5_SET(arm_rq_in, in, op_mod,     MLX5_ARM_RQ_IN_OP_MOD_XRQ);
+	MLX5_SET(arm_rq_in, in, srq_number, srq->srqn);
+	MLX5_SET(arm_rq_in, in, lwm,	    lwm);
+	MLX5_SET(arm_rq_in, in, uid, srq->uid);
+
+	return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
+}
+
+static int query_xrq_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
+			 struct mlx5_srq_attr *out)
+{
+	u32 in[MLX5_ST_SZ_DW(query_xrq_in)] = {0};
+	u32 *xrq_out;
+	int outlen = MLX5_ST_SZ_BYTES(query_xrq_out);
+	void *xrqc;
+	int err;
+
+	xrq_out = kvzalloc(outlen, GFP_KERNEL);
+	if (!xrq_out)
+		return -ENOMEM;
+
+	MLX5_SET(query_xrq_in, in, opcode, MLX5_CMD_OP_QUERY_XRQ);
+	MLX5_SET(query_xrq_in, in, xrqn, srq->srqn);
+
+	err = mlx5_cmd_exec(dev, in, sizeof(in), xrq_out, outlen);
+	if (err)
+		goto out;
+
+	xrqc = MLX5_ADDR_OF(query_xrq_out, xrq_out, xrq_context);
+	get_wq(MLX5_ADDR_OF(xrqc, xrqc, wq), out);
+	if (MLX5_GET(xrqc, xrqc, state) != MLX5_XRQC_STATE_GOOD)
+		out->flags |= MLX5_SRQ_FLAG_ERR;
+	out->tm_next_tag =
+		MLX5_GET(xrqc, xrqc,
+			 tag_matching_topology_context.append_next_index);
+	out->tm_hw_phase_cnt =
+		MLX5_GET(xrqc, xrqc,
+			 tag_matching_topology_context.hw_phase_cnt);
+	out->tm_sw_phase_cnt =
+		MLX5_GET(xrqc, xrqc,
+			 tag_matching_topology_context.sw_phase_cnt);
+
+out:
+	kvfree(xrq_out);
+	return err;
+}
+
+static int create_srq_split(struct mlx5_core_dev *dev,
+			    struct mlx5_core_srq *srq,
+			    struct mlx5_srq_attr *in)
+{
+	if (!dev->issi)
+		return create_srq_cmd(dev, srq, in);
+	switch (srq->common.res) {
+	case MLX5_RES_XSRQ:
+		return create_xrc_srq_cmd(dev, srq, in);
+	case MLX5_RES_XRQ:
+		return create_xrq_cmd(dev, srq, in);
+	default:
+		return create_rmp_cmd(dev, srq, in);
+	}
+}
+
+static int destroy_srq_split(struct mlx5_core_dev *dev,
+			     struct mlx5_core_srq *srq)
+{
+	if (!dev->issi)
+		return destroy_srq_cmd(dev, srq);
+	switch (srq->common.res) {
+	case MLX5_RES_XSRQ:
+		return destroy_xrc_srq_cmd(dev, srq);
+	case MLX5_RES_XRQ:
+		return destroy_xrq_cmd(dev, srq);
+	default:
+		return destroy_rmp_cmd(dev, srq);
+	}
+}
+
+int mlx5_core_create_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
+			 struct mlx5_srq_attr *in)
+{
+	int err;
+	struct mlx5_srq_table *table = &dev->priv.srq_table;
+
+	switch (in->type) {
+	case IB_SRQT_XRC:
+		srq->common.res = MLX5_RES_XSRQ;
+		break;
+	case IB_SRQT_TM:
+		srq->common.res = MLX5_RES_XRQ;
+		break;
+	default:
+		srq->common.res = MLX5_RES_SRQ;
+	}
+
+	err = create_srq_split(dev, srq, in);
+	if (err)
+		return err;
+
+	atomic_set(&srq->refcount, 1);
+	init_completion(&srq->free);
+
+	spin_lock_irq(&table->lock);
+	err = radix_tree_insert(&table->tree, srq->srqn, srq);
+	spin_unlock_irq(&table->lock);
+	if (err)
+		goto err_destroy_srq_split;
+
+	return 0;
+
+err_destroy_srq_split:
+	destroy_srq_split(dev, srq);
+
+	return err;
+}
+
+int mlx5_core_destroy_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq)
+{
+	struct mlx5_srq_table *table = &dev->priv.srq_table;
+	struct mlx5_core_srq *tmp;
+	int err;
+
+	spin_lock_irq(&table->lock);
+	tmp = radix_tree_delete(&table->tree, srq->srqn);
+	spin_unlock_irq(&table->lock);
+	if (!tmp || tmp != srq)
+		return -EINVAL;
+
+	err = destroy_srq_split(dev, srq);
+	if (err)
+		return err;
+
+	if (atomic_dec_and_test(&srq->refcount))
+		complete(&srq->free);
+	wait_for_completion(&srq->free);
+
+	return 0;
+}
+
+int mlx5_core_query_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
+			struct mlx5_srq_attr *out)
+{
+	if (!dev->issi)
+		return query_srq_cmd(dev, srq, out);
+	switch (srq->common.res) {
+	case MLX5_RES_XSRQ:
+		return query_xrc_srq_cmd(dev, srq, out);
+	case MLX5_RES_XRQ:
+		return query_xrq_cmd(dev, srq, out);
+	default:
+		return query_rmp_cmd(dev, srq, out);
+	}
+}
+
+int mlx5_core_arm_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
+		      u16 lwm, int is_srq)
+{
+	if (!dev->issi)
+		return arm_srq_cmd(dev, srq, lwm, is_srq);
+	switch (srq->common.res) {
+	case MLX5_RES_XSRQ:
+		return arm_xrc_srq_cmd(dev, srq, lwm);
+	case MLX5_RES_XRQ:
+		return arm_xrq_cmd(dev, srq, lwm);
+	default:
+		return arm_rmp_cmd(dev, srq, lwm);
+	}
+}

drivers/net/ethernet/mellanox/mlx5/core/srq.c

@@ -4,12 +4,8 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/module.h>
 #include <linux/mlx5/driver.h>
-#include <linux/mlx5/cmd.h>
 #include <linux/mlx5/srq.h>
-#include <rdma/ib_verbs.h>
-#include <linux/mlx5/transobj.h>
 
 static int srq_event_notifier(struct notifier_block *nb,
 			      unsigned long type, void *data)
@@ -47,636 +43,6 @@ static int srq_event_notifier(struct notifier_block *nb,
 	return NOTIFY_OK;
 }
 
-static int get_pas_size(struct mlx5_srq_attr *in)
-{
-	u32 log_page_size = in->log_page_size + 12;
-	u32 log_srq_size  = in->log_size;
-	u32 log_rq_stride = in->wqe_shift;
-	u32 page_offset   = in->page_offset;
-	u32 po_quanta	  = 1 << (log_page_size - 6);
-	u32 rq_sz	  = 1 << (log_srq_size + 4 + log_rq_stride);
-	u32 page_size	  = 1 << log_page_size;
-	u32 rq_sz_po      = rq_sz + (page_offset * po_quanta);
-	u32 rq_num_pas    = DIV_ROUND_UP(rq_sz_po, page_size);
-
-	return rq_num_pas * sizeof(u64);
-}
-
-static void set_wq(void *wq, struct mlx5_srq_attr *in)
-{
-	MLX5_SET(wq,   wq, wq_signature,  !!(in->flags
-		 & MLX5_SRQ_FLAG_WQ_SIG));
-	MLX5_SET(wq,   wq, log_wq_pg_sz,  in->log_page_size);
-	MLX5_SET(wq,   wq, log_wq_stride, in->wqe_shift + 4);
-	MLX5_SET(wq,   wq, log_wq_sz,     in->log_size);
-	MLX5_SET(wq,   wq, page_offset,   in->page_offset);
-	MLX5_SET(wq,   wq, lwm,		  in->lwm);
-	MLX5_SET(wq,   wq, pd,		  in->pd);
-	MLX5_SET64(wq, wq, dbr_addr,	  in->db_record);
-}
-
-static void set_srqc(void *srqc, struct mlx5_srq_attr *in)
-{
-	MLX5_SET(srqc,   srqc, wq_signature,  !!(in->flags
-		 & MLX5_SRQ_FLAG_WQ_SIG));
-	MLX5_SET(srqc,   srqc, log_page_size, in->log_page_size);
-	MLX5_SET(srqc,   srqc, log_rq_stride, in->wqe_shift);
-	MLX5_SET(srqc,   srqc, log_srq_size,  in->log_size);
-	MLX5_SET(srqc,   srqc, page_offset,   in->page_offset);
-	MLX5_SET(srqc,	 srqc, lwm,	      in->lwm);
-	MLX5_SET(srqc,	 srqc, pd,	      in->pd);
-	MLX5_SET64(srqc, srqc, dbr_addr,      in->db_record);
-	MLX5_SET(srqc,	 srqc, xrcd,	      in->xrcd);
-	MLX5_SET(srqc,	 srqc, cqn,	      in->cqn);
-}
-
-static void get_wq(void *wq, struct mlx5_srq_attr *in)
-{
-	if (MLX5_GET(wq, wq, wq_signature))
-		in->flags &= MLX5_SRQ_FLAG_WQ_SIG;
-	in->log_page_size = MLX5_GET(wq,   wq, log_wq_pg_sz);
-	in->wqe_shift	  = MLX5_GET(wq,   wq, log_wq_stride) - 4;
-	in->log_size	  = MLX5_GET(wq,   wq, log_wq_sz);
-	in->page_offset   = MLX5_GET(wq,   wq, page_offset);
-	in->lwm		  = MLX5_GET(wq,   wq, lwm);
-	in->pd		  = MLX5_GET(wq,   wq, pd);
-	in->db_record	  = MLX5_GET64(wq, wq, dbr_addr);
-}
-
-static void get_srqc(void *srqc, struct mlx5_srq_attr *in)
-{
-	if (MLX5_GET(srqc, srqc, wq_signature))
-		in->flags &= MLX5_SRQ_FLAG_WQ_SIG;
-	in->log_page_size = MLX5_GET(srqc,   srqc, log_page_size);
-	in->wqe_shift	  = MLX5_GET(srqc,   srqc, log_rq_stride);
-	in->log_size	  = MLX5_GET(srqc,   srqc, log_srq_size);
-	in->page_offset   = MLX5_GET(srqc,   srqc, page_offset);
-	in->lwm		  = MLX5_GET(srqc,   srqc, lwm);
-	in->pd		  = MLX5_GET(srqc,   srqc, pd);
-	in->db_record	  = MLX5_GET64(srqc, srqc, dbr_addr);
-}
-
-struct mlx5_core_srq *mlx5_core_get_srq(struct mlx5_core_dev *dev, u32 srqn)
-{
-	struct mlx5_srq_table *table = &dev->priv.srq_table;
-	struct mlx5_core_srq *srq;
-
-	spin_lock(&table->lock);
-
-	srq = radix_tree_lookup(&table->tree, srqn);
-	if (srq)
-		atomic_inc(&srq->refcount);
-
-	spin_unlock(&table->lock);
-
-	return srq;
-}
-EXPORT_SYMBOL(mlx5_core_get_srq);
-
-static int create_srq_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
-			  struct mlx5_srq_attr *in)
-{
-	u32 create_out[MLX5_ST_SZ_DW(create_srq_out)] = {0};
-	void *create_in;
-	void *srqc;
-	void *pas;
-	int pas_size;
-	int inlen;
-	int err;
-
-	pas_size  = get_pas_size(in);
-	inlen	  = MLX5_ST_SZ_BYTES(create_srq_in) + pas_size;
-	create_in = kvzalloc(inlen, GFP_KERNEL);
-	if (!create_in)
-		return -ENOMEM;
-
-	MLX5_SET(create_srq_in, create_in, uid, in->uid);
-	srqc = MLX5_ADDR_OF(create_srq_in, create_in, srq_context_entry);
-	pas = MLX5_ADDR_OF(create_srq_in, create_in, pas);
-
-	set_srqc(srqc, in);
-	memcpy(pas, in->pas, pas_size);
-
-	MLX5_SET(create_srq_in, create_in, opcode,
-		 MLX5_CMD_OP_CREATE_SRQ);
-
-	err = mlx5_cmd_exec(dev, create_in, inlen, create_out,
-			    sizeof(create_out));
-	kvfree(create_in);
-	if (!err) {
-		srq->srqn = MLX5_GET(create_srq_out, create_out, srqn);
-		srq->uid = in->uid;
-	}
-
-	return err;
-}
-
-static int destroy_srq_cmd(struct mlx5_core_dev *dev,
-			   struct mlx5_core_srq *srq)
-{
-	u32 srq_in[MLX5_ST_SZ_DW(destroy_srq_in)] = {0};
-	u32 srq_out[MLX5_ST_SZ_DW(destroy_srq_out)] = {0};
-
-	MLX5_SET(destroy_srq_in, srq_in, opcode,
-		 MLX5_CMD_OP_DESTROY_SRQ);
-	MLX5_SET(destroy_srq_in, srq_in, srqn, srq->srqn);
-	MLX5_SET(destroy_srq_in, srq_in, uid, srq->uid);
-
-	return mlx5_cmd_exec(dev, srq_in, sizeof(srq_in),
-			     srq_out, sizeof(srq_out));
-}
-
-static int arm_srq_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
-		       u16 lwm, int is_srq)
-{
-	u32 srq_in[MLX5_ST_SZ_DW(arm_rq_in)] = {0};
-	u32 srq_out[MLX5_ST_SZ_DW(arm_rq_out)] = {0};
-
-	MLX5_SET(arm_rq_in, srq_in, opcode, MLX5_CMD_OP_ARM_RQ);
-	MLX5_SET(arm_rq_in, srq_in, op_mod, MLX5_ARM_RQ_IN_OP_MOD_SRQ);
-	MLX5_SET(arm_rq_in, srq_in, srq_number, srq->srqn);
-	MLX5_SET(arm_rq_in, srq_in, lwm,      lwm);
-	MLX5_SET(arm_rq_in, srq_in, uid, srq->uid);
-
-	return  mlx5_cmd_exec(dev, srq_in, sizeof(srq_in),
-			      srq_out, sizeof(srq_out));
-}
-
-static int query_srq_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
-			 struct mlx5_srq_attr *out)
-{
-	u32 srq_in[MLX5_ST_SZ_DW(query_srq_in)] = {0};
-	u32 *srq_out;
-	void *srqc;
-	int err;
-
-	srq_out = kvzalloc(MLX5_ST_SZ_BYTES(query_srq_out), GFP_KERNEL);
-	if (!srq_out)
-		return -ENOMEM;
-
-	MLX5_SET(query_srq_in, srq_in, opcode,
-		 MLX5_CMD_OP_QUERY_SRQ);
-	MLX5_SET(query_srq_in, srq_in, srqn, srq->srqn);
-	err =  mlx5_cmd_exec(dev, srq_in, sizeof(srq_in),
-			     srq_out, MLX5_ST_SZ_BYTES(query_srq_out));
-	if (err)
-		goto out;
-
-	srqc = MLX5_ADDR_OF(query_srq_out, srq_out, srq_context_entry);
-	get_srqc(srqc, out);
-	if (MLX5_GET(srqc, srqc, state) != MLX5_SRQC_STATE_GOOD)
-		out->flags |= MLX5_SRQ_FLAG_ERR;
-out:
-	kvfree(srq_out);
-	return err;
-}
-
-static int create_xrc_srq_cmd(struct mlx5_core_dev *dev,
-			      struct mlx5_core_srq *srq,
-			      struct mlx5_srq_attr *in)
-{
-	u32 create_out[MLX5_ST_SZ_DW(create_xrc_srq_out)];
-	void *create_in;
-	void *xrc_srqc;
-	void *pas;
-	int pas_size;
-	int inlen;
-	int err;
-
-	pas_size  = get_pas_size(in);
-	inlen	  = MLX5_ST_SZ_BYTES(create_xrc_srq_in) + pas_size;
-	create_in = kvzalloc(inlen, GFP_KERNEL);
-	if (!create_in)
-		return -ENOMEM;
-
-	MLX5_SET(create_xrc_srq_in, create_in, uid, in->uid);
-	xrc_srqc = MLX5_ADDR_OF(create_xrc_srq_in, create_in,
-				xrc_srq_context_entry);
-	pas	 = MLX5_ADDR_OF(create_xrc_srq_in, create_in, pas);
-
-	set_srqc(xrc_srqc, in);
-	MLX5_SET(xrc_srqc, xrc_srqc, user_index, in->user_index);
-	memcpy(pas, in->pas, pas_size);
-	MLX5_SET(create_xrc_srq_in, create_in, opcode,
-		 MLX5_CMD_OP_CREATE_XRC_SRQ);
-
-	memset(create_out, 0, sizeof(create_out));
-	err = mlx5_cmd_exec(dev, create_in, inlen, create_out,
-			    sizeof(create_out));
-	if (err)
-		goto out;
-
-	srq->srqn = MLX5_GET(create_xrc_srq_out, create_out, xrc_srqn);
-	srq->uid = in->uid;
-out:
-	kvfree(create_in);
-	return err;
-}
-
-static int destroy_xrc_srq_cmd(struct mlx5_core_dev *dev,
-			       struct mlx5_core_srq *srq)
-{
-	u32 xrcsrq_in[MLX5_ST_SZ_DW(destroy_xrc_srq_in)]   = {0};
-	u32 xrcsrq_out[MLX5_ST_SZ_DW(destroy_xrc_srq_out)] = {0};
-
-	MLX5_SET(destroy_xrc_srq_in, xrcsrq_in, opcode,
-		 MLX5_CMD_OP_DESTROY_XRC_SRQ);
-	MLX5_SET(destroy_xrc_srq_in, xrcsrq_in, xrc_srqn, srq->srqn);
-	MLX5_SET(destroy_xrc_srq_in, xrcsrq_in, uid, srq->uid);
-
-	return mlx5_cmd_exec(dev, xrcsrq_in, sizeof(xrcsrq_in),
-			     xrcsrq_out, sizeof(xrcsrq_out));
-}
-
-static int arm_xrc_srq_cmd(struct mlx5_core_dev *dev,
-			   struct mlx5_core_srq *srq, u16 lwm)
-{
-	u32 xrcsrq_in[MLX5_ST_SZ_DW(arm_xrc_srq_in)]   = {0};
-	u32 xrcsrq_out[MLX5_ST_SZ_DW(arm_xrc_srq_out)] = {0};
-
-	MLX5_SET(arm_xrc_srq_in, xrcsrq_in, opcode,   MLX5_CMD_OP_ARM_XRC_SRQ);
-	MLX5_SET(arm_xrc_srq_in, xrcsrq_in, op_mod,   MLX5_ARM_XRC_SRQ_IN_OP_MOD_XRC_SRQ);
-	MLX5_SET(arm_xrc_srq_in, xrcsrq_in, xrc_srqn, srq->srqn);
-	MLX5_SET(arm_xrc_srq_in, xrcsrq_in, lwm,      lwm);
-	MLX5_SET(arm_xrc_srq_in, xrcsrq_in, uid, srq->uid);
-
-	return  mlx5_cmd_exec(dev, xrcsrq_in, sizeof(xrcsrq_in),
-			      xrcsrq_out, sizeof(xrcsrq_out));
-}
-
-static int query_xrc_srq_cmd(struct mlx5_core_dev *dev,
-			     struct mlx5_core_srq *srq,
-			     struct mlx5_srq_attr *out)
-{
-	u32 xrcsrq_in[MLX5_ST_SZ_DW(query_xrc_srq_in)];
-	u32 *xrcsrq_out;
-	void *xrc_srqc;
-	int err;
-
-	xrcsrq_out = kvzalloc(MLX5_ST_SZ_BYTES(query_xrc_srq_out), GFP_KERNEL);
-	if (!xrcsrq_out)
-		return -ENOMEM;
-	memset(xrcsrq_in, 0, sizeof(xrcsrq_in));
-
-	MLX5_SET(query_xrc_srq_in, xrcsrq_in, opcode,
-		 MLX5_CMD_OP_QUERY_XRC_SRQ);
-	MLX5_SET(query_xrc_srq_in, xrcsrq_in, xrc_srqn, srq->srqn);
-
-	err =  mlx5_cmd_exec(dev, xrcsrq_in, sizeof(xrcsrq_in), xrcsrq_out,
-			     MLX5_ST_SZ_BYTES(query_xrc_srq_out));
-	if (err)
-		goto out;
-
-	xrc_srqc = MLX5_ADDR_OF(query_xrc_srq_out, xrcsrq_out,
-				xrc_srq_context_entry);
-	get_srqc(xrc_srqc, out);
-	if (MLX5_GET(xrc_srqc, xrc_srqc, state) != MLX5_XRC_SRQC_STATE_GOOD)
-		out->flags |= MLX5_SRQ_FLAG_ERR;
-
-out:
-	kvfree(xrcsrq_out);
-	return err;
-}
-
-static int create_rmp_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
-			  struct mlx5_srq_attr *in)
-{
-	void *create_in;
-	void *rmpc;
-	void *wq;
-	int pas_size;
-	int inlen;
-	int err;
-
-	pas_size = get_pas_size(in);
-	inlen = MLX5_ST_SZ_BYTES(create_rmp_in) + pas_size;
-	create_in = kvzalloc(inlen, GFP_KERNEL);
-	if (!create_in)
-		return -ENOMEM;
-
-	rmpc = MLX5_ADDR_OF(create_rmp_in, create_in, ctx);
-	wq = MLX5_ADDR_OF(rmpc, rmpc, wq);
-
-	MLX5_SET(rmpc, rmpc, state, MLX5_RMPC_STATE_RDY);
-	MLX5_SET(create_rmp_in, create_in, uid, in->uid);
-	set_wq(wq, in);
-	memcpy(MLX5_ADDR_OF(rmpc, rmpc, wq.pas), in->pas, pas_size);
-
-	err = mlx5_core_create_rmp(dev, create_in, inlen, &srq->srqn);
-	if (!err)
-		srq->uid = in->uid;
-
-	kvfree(create_in);
-	return err;
-}
-
-static int destroy_rmp_cmd(struct mlx5_core_dev *dev,
-			   struct mlx5_core_srq *srq)
-{
-	u32 in[MLX5_ST_SZ_DW(destroy_rmp_in)]   = {};
-	u32 out[MLX5_ST_SZ_DW(destroy_rmp_out)] = {};
-
-	MLX5_SET(destroy_rmp_in, in, opcode, MLX5_CMD_OP_DESTROY_RMP);
-	MLX5_SET(destroy_rmp_in, in, rmpn, srq->srqn);
-	MLX5_SET(destroy_rmp_in, in, uid, srq->uid);
-	return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
-}
-
-static int arm_rmp_cmd(struct mlx5_core_dev *dev,
-		       struct mlx5_core_srq *srq,
-		       u16 lwm)
-{
-	void *in;
-	void *rmpc;
-	void *wq;
-	void *bitmask;
-	int err;
-
-	in = kvzalloc(MLX5_ST_SZ_BYTES(modify_rmp_in), GFP_KERNEL);
-	if (!in)
-		return -ENOMEM;
-
-	rmpc =	  MLX5_ADDR_OF(modify_rmp_in,   in,   ctx);
-	bitmask = MLX5_ADDR_OF(modify_rmp_in,   in,   bitmask);
-	wq   =	  MLX5_ADDR_OF(rmpc,	        rmpc, wq);
-
-	MLX5_SET(modify_rmp_in, in,	 rmp_state, MLX5_RMPC_STATE_RDY);
-	MLX5_SET(modify_rmp_in, in,	 rmpn,      srq->srqn);
-	MLX5_SET(modify_rmp_in, in, uid, srq->uid);
-	MLX5_SET(wq,		wq,	 lwm,	    lwm);
-	MLX5_SET(rmp_bitmask,	bitmask, lwm,	    1);
-	MLX5_SET(rmpc, rmpc, state, MLX5_RMPC_STATE_RDY);
-
-	err = mlx5_core_modify_rmp(dev, in, MLX5_ST_SZ_BYTES(modify_rmp_in));
-
-	kvfree(in);
-	return err;
-}
-
-static int query_rmp_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
-			 struct mlx5_srq_attr *out)
-{
-	u32 *rmp_out;
-	void *rmpc;
-	int err;
-
-	rmp_out =  kvzalloc(MLX5_ST_SZ_BYTES(query_rmp_out), GFP_KERNEL);
-	if (!rmp_out)
-		return -ENOMEM;
-
-	err = mlx5_core_query_rmp(dev, srq->srqn, rmp_out);
-	if (err)
-		goto out;
-
-	rmpc = MLX5_ADDR_OF(query_rmp_out, rmp_out, rmp_context);
-	get_wq(MLX5_ADDR_OF(rmpc, rmpc, wq), out);
-	if (MLX5_GET(rmpc, rmpc, state) != MLX5_RMPC_STATE_RDY)
-		out->flags |= MLX5_SRQ_FLAG_ERR;
-
-out:
-	kvfree(rmp_out);
-	return err;
-}
-
-static int create_xrq_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
-			  struct mlx5_srq_attr *in)
-{
-	u32 create_out[MLX5_ST_SZ_DW(create_xrq_out)] = {0};
-	void *create_in;
-	void *xrqc;
-	void *wq;
-	int pas_size;
-	int inlen;
-	int err;
-
-	pas_size = get_pas_size(in);
-	inlen = MLX5_ST_SZ_BYTES(create_xrq_in) + pas_size;
-	create_in = kvzalloc(inlen, GFP_KERNEL);
-	if (!create_in)
-		return -ENOMEM;
-
-	xrqc = MLX5_ADDR_OF(create_xrq_in, create_in, xrq_context);
-	wq = MLX5_ADDR_OF(xrqc, xrqc, wq);
-
-	set_wq(wq, in);
-	memcpy(MLX5_ADDR_OF(xrqc, xrqc, wq.pas), in->pas, pas_size);
-
-	if (in->type == IB_SRQT_TM) {
-		MLX5_SET(xrqc, xrqc, topology, MLX5_XRQC_TOPOLOGY_TAG_MATCHING);
-		if (in->flags & MLX5_SRQ_FLAG_RNDV)
-			MLX5_SET(xrqc, xrqc, offload, MLX5_XRQC_OFFLOAD_RNDV);
-		MLX5_SET(xrqc, xrqc,
-			 tag_matching_topology_context.log_matching_list_sz,
-			 in->tm_log_list_size);
-	}
-	MLX5_SET(xrqc, xrqc, user_index, in->user_index);
-	MLX5_SET(xrqc, xrqc, cqn, in->cqn);
-	MLX5_SET(create_xrq_in, create_in, opcode, MLX5_CMD_OP_CREATE_XRQ);
-	MLX5_SET(create_xrq_in, create_in, uid, in->uid);
-	err = mlx5_cmd_exec(dev, create_in, inlen, create_out,
-			    sizeof(create_out));
-	kvfree(create_in);
-	if (!err) {
-		srq->srqn = MLX5_GET(create_xrq_out, create_out, xrqn);
-		srq->uid = in->uid;
-	}
-
-	return err;
-}
-
-static int destroy_xrq_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq)
-{
-	u32 in[MLX5_ST_SZ_DW(destroy_xrq_in)] = {0};
-	u32 out[MLX5_ST_SZ_DW(destroy_xrq_out)] = {0};
-
-	MLX5_SET(destroy_xrq_in, in, opcode, MLX5_CMD_OP_DESTROY_XRQ);
-	MLX5_SET(destroy_xrq_in, in, xrqn,   srq->srqn);
-	MLX5_SET(destroy_xrq_in, in, uid, srq->uid);
-
-	return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
-}
-
-static int arm_xrq_cmd(struct mlx5_core_dev *dev,
-		       struct mlx5_core_srq *srq,
-		       u16 lwm)
-{
-	u32 out[MLX5_ST_SZ_DW(arm_rq_out)] = {0};
-	u32 in[MLX5_ST_SZ_DW(arm_rq_in)] = {0};
-
-	MLX5_SET(arm_rq_in, in, opcode,     MLX5_CMD_OP_ARM_RQ);
-	MLX5_SET(arm_rq_in, in, op_mod,     MLX5_ARM_RQ_IN_OP_MOD_XRQ);
-	MLX5_SET(arm_rq_in, in, srq_number, srq->srqn);
-	MLX5_SET(arm_rq_in, in, lwm,	    lwm);
-	MLX5_SET(arm_rq_in, in, uid, srq->uid);
-
-	return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
-}
-
-static int query_xrq_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
-			 struct mlx5_srq_attr *out)
-{
-	u32 in[MLX5_ST_SZ_DW(query_xrq_in)] = {0};
-	u32 *xrq_out;
-	int outlen = MLX5_ST_SZ_BYTES(query_xrq_out);
-	void *xrqc;
-	int err;
-
-	xrq_out = kvzalloc(outlen, GFP_KERNEL);
-	if (!xrq_out)
-		return -ENOMEM;
-
-	MLX5_SET(query_xrq_in, in, opcode, MLX5_CMD_OP_QUERY_XRQ);
-	MLX5_SET(query_xrq_in, in, xrqn, srq->srqn);
-
-	err = mlx5_cmd_exec(dev, in, sizeof(in), xrq_out, outlen);
-	if (err)
-		goto out;
-
-	xrqc = MLX5_ADDR_OF(query_xrq_out, xrq_out, xrq_context);
-	get_wq(MLX5_ADDR_OF(xrqc, xrqc, wq), out);
-	if (MLX5_GET(xrqc, xrqc, state) != MLX5_XRQC_STATE_GOOD)
-		out->flags |= MLX5_SRQ_FLAG_ERR;
-	out->tm_next_tag =
-		MLX5_GET(xrqc, xrqc,
-			 tag_matching_topology_context.append_next_index);
-	out->tm_hw_phase_cnt =
-		MLX5_GET(xrqc, xrqc,
-			 tag_matching_topology_context.hw_phase_cnt);
-	out->tm_sw_phase_cnt =
-		MLX5_GET(xrqc, xrqc,
-			 tag_matching_topology_context.sw_phase_cnt);
-
-out:
-	kvfree(xrq_out);
-	return err;
-}
-
-static int create_srq_split(struct mlx5_core_dev *dev,
-			    struct mlx5_core_srq *srq,
-			    struct mlx5_srq_attr *in)
-{
-	if (!dev->issi)
-		return create_srq_cmd(dev, srq, in);
-	switch (srq->common.res) {
-	case MLX5_RES_XSRQ:
-		return create_xrc_srq_cmd(dev, srq, in);
-	case MLX5_RES_XRQ:
-		return create_xrq_cmd(dev, srq, in);
-	default:
-		return create_rmp_cmd(dev, srq, in);
-	}
-}
-
-static int destroy_srq_split(struct mlx5_core_dev *dev,
-			     struct mlx5_core_srq *srq)
-{
-	if (!dev->issi)
-		return destroy_srq_cmd(dev, srq);
-	switch (srq->common.res) {
-	case MLX5_RES_XSRQ:
-		return destroy_xrc_srq_cmd(dev, srq);
-	case MLX5_RES_XRQ:
-		return destroy_xrq_cmd(dev, srq);
-	default:
-		return destroy_rmp_cmd(dev, srq);
-	}
-}
-
-int mlx5_core_create_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
-			 struct mlx5_srq_attr *in)
-{
-	int err;
-	struct mlx5_srq_table *table = &dev->priv.srq_table;
-
-	switch (in->type) {
-	case IB_SRQT_XRC:
-		srq->common.res = MLX5_RES_XSRQ;
-		break;
-	case IB_SRQT_TM:
-		srq->common.res = MLX5_RES_XRQ;
-		break;
-	default:
-		srq->common.res = MLX5_RES_SRQ;
-	}
-
-	err = create_srq_split(dev, srq, in);
-	if (err)
-		return err;
-
-	atomic_set(&srq->refcount, 1);
-	init_completion(&srq->free);
-
-	spin_lock_irq(&table->lock);
-	err = radix_tree_insert(&table->tree, srq->srqn, srq);
-	spin_unlock_irq(&table->lock);
-	if (err)
-		goto err_destroy_srq_split;
-
-	return 0;
-
-err_destroy_srq_split:
-	destroy_srq_split(dev, srq);
-
-	return err;
-}
-EXPORT_SYMBOL(mlx5_core_create_srq);
-
-int mlx5_core_destroy_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq)
-{
-	struct mlx5_srq_table *table = &dev->priv.srq_table;
-	struct mlx5_core_srq *tmp;
-	int err;
-
-	spin_lock_irq(&table->lock);
-	tmp = radix_tree_delete(&table->tree, srq->srqn);
-	spin_unlock_irq(&table->lock);
-	if (!tmp || tmp != srq)
-		return -EINVAL;
-
-	err = destroy_srq_split(dev, srq);
-	if (err)
-		return err;
-
-	if (atomic_dec_and_test(&srq->refcount))
-		complete(&srq->free);
-	wait_for_completion(&srq->free);
-
-	return 0;
-}
-EXPORT_SYMBOL(mlx5_core_destroy_srq);
-
-int mlx5_core_query_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
-			struct mlx5_srq_attr *out)
-{
-	if (!dev->issi)
-		return query_srq_cmd(dev, srq, out);
-	switch (srq->common.res) {
-	case MLX5_RES_XSRQ:
-		return query_xrc_srq_cmd(dev, srq, out);
-	case MLX5_RES_XRQ:
-		return query_xrq_cmd(dev, srq, out);
-	default:
-		return query_rmp_cmd(dev, srq, out);
-	}
-}
-EXPORT_SYMBOL(mlx5_core_query_srq);
-
-int mlx5_core_arm_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
-		      u16 lwm, int is_srq)
-{
-	if (!dev->issi)
-		return arm_srq_cmd(dev, srq, lwm, is_srq);
-	switch (srq->common.res) {
-	case MLX5_RES_XSRQ:
-		return arm_xrc_srq_cmd(dev, srq, lwm);
-	case MLX5_RES_XRQ:
-		return arm_xrq_cmd(dev, srq, lwm);
-	default:
-		return arm_rmp_cmd(dev, srq, lwm);
-	}
-}
-EXPORT_SYMBOL(mlx5_core_arm_srq);
-
 void mlx5_init_srq_table(struct mlx5_core_dev *dev)
 {
 	struct mlx5_srq_table *table = &dev->priv.srq_table;

drivers/net/ethernet/mellanox/mlx5/core/transobj.c

@@ -258,49 +258,6 @@ void mlx5_core_destroy_tis(struct mlx5_core_dev *dev, u32 tisn)
 }
 EXPORT_SYMBOL(mlx5_core_destroy_tis);
 
-int mlx5_core_create_rmp(struct mlx5_core_dev *dev, u32 *in, int inlen,
-			 u32 *rmpn)
-{
-	u32 out[MLX5_ST_SZ_DW(create_rmp_out)] = {0};
-	int err;
-
-	MLX5_SET(create_rmp_in, in, opcode, MLX5_CMD_OP_CREATE_RMP);
-	err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
-	if (!err)
-		*rmpn = MLX5_GET(create_rmp_out, out, rmpn);
-
-	return err;
-}
-
-int mlx5_core_modify_rmp(struct mlx5_core_dev *dev, u32 *in, int inlen)
-{
-	u32 out[MLX5_ST_SZ_DW(modify_rmp_out)] = {0};
-
-	MLX5_SET(modify_rmp_in, in, opcode, MLX5_CMD_OP_MODIFY_RMP);
-	return mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
-}
-
-int mlx5_core_destroy_rmp(struct mlx5_core_dev *dev, u32 rmpn)
-{
-	u32 in[MLX5_ST_SZ_DW(destroy_rmp_in)]   = {0};
-	u32 out[MLX5_ST_SZ_DW(destroy_rmp_out)] = {0};
-
-	MLX5_SET(destroy_rmp_in, in, opcode, MLX5_CMD_OP_DESTROY_RMP);
-	MLX5_SET(destroy_rmp_in, in, rmpn, rmpn);
-	return mlx5_cmd_exec(dev, in, sizeof(in), out,
-					  sizeof(out));
-}
-
-int mlx5_core_query_rmp(struct mlx5_core_dev *dev, u32 rmpn, u32 *out)
-{
-	u32 in[MLX5_ST_SZ_DW(query_rmp_in)] = {0};
-	int outlen = MLX5_ST_SZ_BYTES(query_rmp_out);
-
-	MLX5_SET(query_rmp_in, in, opcode, MLX5_CMD_OP_QUERY_RMP);
-	MLX5_SET(query_rmp_in, in, rmpn,   rmpn);
-	return mlx5_cmd_exec(dev, in, sizeof(in), out, outlen);
-}
-
 int mlx5_core_create_rqt(struct mlx5_core_dev *dev, u32 *in, int inlen,
 			 u32 *rqtn)
 {

include/linux/mlx5/driver.h

@@ -904,13 +904,6 @@ struct mlx5_cmd_mailbox *mlx5_alloc_cmd_mailbox_chain(struct mlx5_core_dev *dev,
 						      gfp_t flags, int npages);
 void mlx5_free_cmd_mailbox_chain(struct mlx5_core_dev *dev,
 				 struct mlx5_cmd_mailbox *head);
-int mlx5_core_create_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
-			 struct mlx5_srq_attr *in);
-int mlx5_core_destroy_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq);
-int mlx5_core_query_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
-			struct mlx5_srq_attr *out);
-int mlx5_core_arm_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
-		      u16 lwm, int is_srq);
 void mlx5_init_mkey_table(struct mlx5_core_dev *dev);
 void mlx5_cleanup_mkey_table(struct mlx5_core_dev *dev);
 int mlx5_core_create_mkey_cb(struct mlx5_core_dev *dev,
@@ -942,7 +935,6 @@ void mlx5_unregister_debugfs(void);
 
 void mlx5_fill_page_array(struct mlx5_frag_buf *buf, __be64 *pas);
 void mlx5_fill_page_frag_array(struct mlx5_frag_buf *frag_buf, __be64 *pas);
-struct mlx5_core_srq *mlx5_core_get_srq(struct mlx5_core_dev *dev, u32 srqn);
 int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn,
 		    unsigned int *irqn);
 int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);

include/linux/mlx5/srq.h

@@ -6,37 +6,6 @@
 #ifndef MLX5_SRQ_H
 #define MLX5_SRQ_H
 
-#include <linux/mlx5/driver.h>
-
-enum {
-	MLX5_SRQ_FLAG_ERR    = (1 << 0),
-	MLX5_SRQ_FLAG_WQ_SIG = (1 << 1),
-	MLX5_SRQ_FLAG_RNDV   = (1 << 2),
-};
-
-struct mlx5_srq_attr {
-	u32 type;
-	u32 flags;
-	u32 log_size;
-	u32 wqe_shift;
-	u32 log_page_size;
-	u32 wqe_cnt;
-	u32 srqn;
-	u32 xrcd;
-	u32 page_offset;
-	u32 cqn;
-	u32 pd;
-	u32 lwm;
-	u32 user_index;
-	u64 db_record;
-	__be64 *pas;
-	u32 tm_log_list_size;
-	u32 tm_next_tag;
-	u32 tm_hw_phase_cnt;
-	u32 tm_sw_phase_cnt;
-	u16 uid;
-};
-
 struct mlx5_core_dev;
 
 void mlx5_init_srq_table(struct mlx5_core_dev *dev);

include/linux/mlx5/transobj.h

@@ -58,12 +58,6 @@ int mlx5_core_create_tis(struct mlx5_core_dev *dev, u32 *in, int inlen,
 int mlx5_core_modify_tis(struct mlx5_core_dev *dev, u32 tisn, u32 *in,
 			 int inlen);
 void mlx5_core_destroy_tis(struct mlx5_core_dev *dev, u32 tisn);
-int mlx5_core_create_rmp(struct mlx5_core_dev *dev, u32 *in, int inlen,
-			 u32 *rmpn);
-int mlx5_core_modify_rmp(struct mlx5_core_dev *dev, u32 *in, int inlen);
-int mlx5_core_destroy_rmp(struct mlx5_core_dev *dev, u32 rmpn);
-int mlx5_core_query_rmp(struct mlx5_core_dev *dev, u32 rmpn, u32 *out);
-
 int mlx5_core_create_rqt(struct mlx5_core_dev *dev, u32 *in, int inlen,
 			 u32 *rqtn);
 int mlx5_core_modify_rqt(struct mlx5_core_dev *dev, u32 rqtn, u32 *in,