RDMA/rxe: Move max_elem into rxe_type_info

Move the maximum number of elements from a parameter in rxe_pool_init to a
member of the rxe_type_info array.

Link: https://lore.kernel.org/r/20220304000808.225811-7-rpearsonhpe@gmail.com
Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

drivers/infiniband/sw/rxe/rxe.c

@@ -118,43 +118,35 @@ static int rxe_init_pools(struct rxe_dev *rxe)
 {
 	int err;
 
-	err = rxe_pool_init(rxe, &rxe->uc_pool, RXE_TYPE_UC,
-			    rxe->max_ucontext);
+	err = rxe_pool_init(rxe, &rxe->uc_pool, RXE_TYPE_UC);
 	if (err)
 		goto err1;
 
-	err = rxe_pool_init(rxe, &rxe->pd_pool, RXE_TYPE_PD,
-			    rxe->attr.max_pd);
+	err = rxe_pool_init(rxe, &rxe->pd_pool, RXE_TYPE_PD);
 	if (err)
 		goto err2;
 
-	err = rxe_pool_init(rxe, &rxe->ah_pool, RXE_TYPE_AH,
-			    rxe->attr.max_ah);
+	err = rxe_pool_init(rxe, &rxe->ah_pool, RXE_TYPE_AH);
 	if (err)
 		goto err3;
 
-	err = rxe_pool_init(rxe, &rxe->srq_pool, RXE_TYPE_SRQ,
-			    rxe->attr.max_srq);
+	err = rxe_pool_init(rxe, &rxe->srq_pool, RXE_TYPE_SRQ);
 	if (err)
 		goto err4;
 
-	err = rxe_pool_init(rxe, &rxe->qp_pool, RXE_TYPE_QP,
-			    rxe->attr.max_qp);
+	err = rxe_pool_init(rxe, &rxe->qp_pool, RXE_TYPE_QP);
 	if (err)
 		goto err5;
 
-	err = rxe_pool_init(rxe, &rxe->cq_pool, RXE_TYPE_CQ,
-			    rxe->attr.max_cq);
+	err = rxe_pool_init(rxe, &rxe->cq_pool, RXE_TYPE_CQ);
 	if (err)
 		goto err6;
 
-	err = rxe_pool_init(rxe, &rxe->mr_pool, RXE_TYPE_MR,
-			    rxe->attr.max_mr);
+	err = rxe_pool_init(rxe, &rxe->mr_pool, RXE_TYPE_MR);
 	if (err)
 		goto err7;
 
-	err = rxe_pool_init(rxe, &rxe->mw_pool, RXE_TYPE_MW,
-			    rxe->attr.max_mw);
+	err = rxe_pool_init(rxe, &rxe->mw_pool, RXE_TYPE_MW);
 	if (err)
 		goto err8;
 

drivers/infiniband/sw/rxe/rxe_pool.c

@@ -16,16 +16,19 @@ static const struct rxe_type_info {
 	enum rxe_pool_flags flags;
 	u32 min_index;
 	u32 max_index;
+	u32 max_elem;
 } rxe_type_info[RXE_NUM_TYPES] = {
 	[RXE_TYPE_UC] = {
 		.name		= "rxe-uc",
 		.size		= sizeof(struct rxe_ucontext),
 		.elem_offset	= offsetof(struct rxe_ucontext, elem),
+		.max_elem	= UINT_MAX,
 	},
 	[RXE_TYPE_PD] = {
 		.name		= "rxe-pd",
 		.size		= sizeof(struct rxe_pd),
 		.elem_offset	= offsetof(struct rxe_pd, elem),
+		.max_elem	= UINT_MAX,
 	},
 	[RXE_TYPE_AH] = {
 		.name		= "rxe-ah",
@@ -34,6 +37,7 @@ static const struct rxe_type_info {
 		.flags		= RXE_POOL_INDEX,
 		.min_index	= RXE_MIN_AH_INDEX,
 		.max_index	= RXE_MAX_AH_INDEX,
+		.max_elem	= RXE_MAX_AH_INDEX - RXE_MIN_AH_INDEX + 1,
 	},
 	[RXE_TYPE_SRQ] = {
 		.name		= "rxe-srq",
@@ -42,6 +46,7 @@ static const struct rxe_type_info {
 		.flags		= RXE_POOL_INDEX,
 		.min_index	= RXE_MIN_SRQ_INDEX,
 		.max_index	= RXE_MAX_SRQ_INDEX,
+		.max_elem	= RXE_MAX_SRQ_INDEX - RXE_MIN_SRQ_INDEX + 1,
 	},
 	[RXE_TYPE_QP] = {
 		.name		= "rxe-qp",
@@ -51,12 +56,14 @@ static const struct rxe_type_info {
 		.flags		= RXE_POOL_INDEX,
 		.min_index	= RXE_MIN_QP_INDEX,
 		.max_index	= RXE_MAX_QP_INDEX,
+		.max_elem	= RXE_MAX_QP_INDEX - RXE_MIN_QP_INDEX + 1,
 	},
 	[RXE_TYPE_CQ] = {
 		.name		= "rxe-cq",
 		.size		= sizeof(struct rxe_cq),
 		.elem_offset	= offsetof(struct rxe_cq, elem),
 		.cleanup	= rxe_cq_cleanup,
+		.max_elem	= UINT_MAX,
 	},
 	[RXE_TYPE_MR] = {
 		.name		= "rxe-mr",
@@ -66,6 +73,7 @@ static const struct rxe_type_info {
 		.flags		= RXE_POOL_INDEX | RXE_POOL_ALLOC,
 		.min_index	= RXE_MIN_MR_INDEX,
 		.max_index	= RXE_MAX_MR_INDEX,
+		.max_elem	= RXE_MAX_MR_INDEX - RXE_MIN_MR_INDEX + 1,
 	},
 	[RXE_TYPE_MW] = {
 		.name		= "rxe-mw",
@@ -75,6 +83,7 @@ static const struct rxe_type_info {
 		.flags		= RXE_POOL_INDEX,
 		.min_index	= RXE_MIN_MW_INDEX,
 		.max_index	= RXE_MAX_MW_INDEX,
+		.max_elem	= RXE_MAX_MW_INDEX - RXE_MIN_MW_INDEX + 1,
 	},
 };
 
@@ -104,8 +113,7 @@ out:
 int rxe_pool_init(
 	struct rxe_dev		*rxe,
 	struct rxe_pool		*pool,
-	enum rxe_elem_type	type,
-	unsigned int		max_elem)
+	enum rxe_elem_type	type)
 {
 	const struct rxe_type_info *info = &rxe_type_info[type];
 	int			err = 0;
@@ -115,7 +123,7 @@ int rxe_pool_init(
 	pool->rxe		= rxe;
 	pool->name		= info->name;
 	pool->type		= type;
-	pool->max_elem		= max_elem;
+	pool->max_elem		= info->max_elem;
 	pool->elem_size		= ALIGN(info->size, RXE_POOL_ALIGN);
 	pool->elem_offset	= info->elem_offset;
 	pool->flags		= info->flags;

drivers/infiniband/sw/rxe/rxe_pool.h

@@ -63,7 +63,7 @@ struct rxe_pool {
  * pool elements will be allocated out of a slab cache
  */
 int rxe_pool_init(struct rxe_dev *rxe, struct rxe_pool *pool,
-		  enum rxe_elem_type type, u32 max_elem);
+		  enum rxe_elem_type type);
 
 /* free resources from object pool */
 void rxe_pool_cleanup(struct rxe_pool *pool);