RDMA/bnxt_re: Remove dynamic pkey table

The RoCE spec requires RoCE devices to support only the default pkey.
However the bnxt_re driver maintains a 0xFFFF entry pkey table and uses
only the first entry. Remove the pkey table and hard code a table of
length one hard wired with the default pkey.

Link: https://lore.kernel.org/r/20211125033615.483750-1-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Reviewed-by: Devesh Sharma <devesh.s.sharma@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

1 files changed, 0 insertions, 50 deletions

diff --git a/drivers/infiniband/hw/bnxt_re/qplib_res.c b/drivers/infiniband/hw/bnxt_re/qplib_res.c
index bc1ba4b51ba4..126d4f26f75a 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_res.c
+++ b/drivers/infiniband/hw/bnxt_re/qplib_res.c
@@ -649,31 +649,6 @@ static void bnxt_qplib_init_sgid_tbl(struct bnxt_qplib_sgid_tbl *sgid_tbl,
 	memset(sgid_tbl->hw_id, -1, sizeof(u16) * sgid_tbl->max);
 }
 
-static void bnxt_qplib_free_pkey_tbl(struct bnxt_qplib_res *res,
-				     struct bnxt_qplib_pkey_tbl *pkey_tbl)
-{
-	if (!pkey_tbl->tbl)
-		dev_dbg(&res->pdev->dev, "PKEY tbl not present\n");
-	else
-		kfree(pkey_tbl->tbl);
-
-	pkey_tbl->tbl = NULL;
-	pkey_tbl->max = 0;
-	pkey_tbl->active = 0;
-}
-
-static int bnxt_qplib_alloc_pkey_tbl(struct bnxt_qplib_res *res,
-				     struct bnxt_qplib_pkey_tbl *pkey_tbl,
-				     u16 max)
-{
-	pkey_tbl->tbl = kcalloc(max, sizeof(u16), GFP_KERNEL);
-	if (!pkey_tbl->tbl)
-		return -ENOMEM;
-
-	pkey_tbl->max = max;
-	return 0;
-};
-
 /* PDs */
 int bnxt_qplib_alloc_pd(struct bnxt_qplib_pd_tbl *pdt, struct bnxt_qplib_pd *pd)
 {
@@ -843,24 +818,6 @@ unmap_io:
 	return -ENOMEM;
 }
 
-/* PKEYs */
-static void bnxt_qplib_cleanup_pkey_tbl(struct bnxt_qplib_pkey_tbl *pkey_tbl)
-{
-	memset(pkey_tbl->tbl, 0, sizeof(u16) * pkey_tbl->max);
-	pkey_tbl->active = 0;
-}
-
-static void bnxt_qplib_init_pkey_tbl(struct bnxt_qplib_res *res,
-				     struct bnxt_qplib_pkey_tbl *pkey_tbl)
-{
-	u16 pkey = 0xFFFF;
-
-	memset(pkey_tbl->tbl, 0, sizeof(u16) * pkey_tbl->max);
-
-	/* pkey default = 0xFFFF */
-	bnxt_qplib_add_pkey(res, pkey_tbl, &pkey, false);
-}
-
 /* Stats */
 static void bnxt_qplib_free_stats_ctx(struct pci_dev *pdev,
 				      struct bnxt_qplib_stats *stats)
@@ -891,21 +848,18 @@ static int bnxt_qplib_alloc_stats_ctx(struct pci_dev *pdev,
 
 void bnxt_qplib_cleanup_res(struct bnxt_qplib_res *res)
 {
-	bnxt_qplib_cleanup_pkey_tbl(&res->pkey_tbl);
 	bnxt_qplib_cleanup_sgid_tbl(res, &res->sgid_tbl);
 }
 
 int bnxt_qplib_init_res(struct bnxt_qplib_res *res)
 {
 	bnxt_qplib_init_sgid_tbl(&res->sgid_tbl, res->netdev);
-	bnxt_qplib_init_pkey_tbl(res, &res->pkey_tbl);
 
 	return 0;
 }
 
 void bnxt_qplib_free_res(struct bnxt_qplib_res *res)
 {
-	bnxt_qplib_free_pkey_tbl(res, &res->pkey_tbl);
 	bnxt_qplib_free_sgid_tbl(res, &res->sgid_tbl);
 	bnxt_qplib_free_pd_tbl(&res->pd_tbl);
 	bnxt_qplib_free_dpi_tbl(res, &res->dpi_tbl);
@@ -924,10 +878,6 @@ int bnxt_qplib_alloc_res(struct bnxt_qplib_res *res, struct pci_dev *pdev,
 	if (rc)
 		goto fail;
 
-	rc = bnxt_qplib_alloc_pkey_tbl(res, &res->pkey_tbl, dev_attr->max_pkey);
-	if (rc)
-		goto fail;
-
 	rc = bnxt_qplib_alloc_pd_tbl(res, &res->pd_tbl, dev_attr->max_pd);
 	if (rc)
 		goto fail;