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Message-Id: <20200921162034.945079334@linuxfoundation.org>
Date: Mon, 21 Sep 2020 18:27:50 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org,
Naresh Kumar PBS <nareshkumar.pbs@...adcom.com>,
Selvin Xavier <selvin.xavier@...adcom.com>,
Jason Gunthorpe <jgg@...dia.com>
Subject: [PATCH 4.19 06/49] RDMA/bnxt_re: Restrict the max_gids to 256
From: Naresh Kumar PBS <nareshkumar.pbs@...adcom.com>
commit 847b97887ed4569968d5b9a740f2334abca9f99a upstream.
Some adapters report more than 256 gid entries. Restrict it to 256 for
now.
Fixes: 1ac5a4047975("RDMA/bnxt_re: Add bnxt_re RoCE driver")
Link: https://lore.kernel.org/r/1598292876-26529-6-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Naresh Kumar PBS <nareshkumar.pbs@...adcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@...adcom.com>
Signed-off-by: Jason Gunthorpe <jgg@...dia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/infiniband/hw/bnxt_re/qplib_sp.c | 2 +-
drivers/infiniband/hw/bnxt_re/qplib_sp.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/infiniband/hw/bnxt_re/qplib_sp.c
+++ b/drivers/infiniband/hw/bnxt_re/qplib_sp.c
@@ -141,7 +141,7 @@ int bnxt_qplib_get_dev_attr(struct bnxt_
attr->max_inline_data = le32_to_cpu(sb->max_inline_data);
attr->l2_db_size = (sb->l2_db_space_size + 1) *
(0x01 << RCFW_DBR_BASE_PAGE_SHIFT);
- attr->max_sgid = le32_to_cpu(sb->max_gid);
+ attr->max_sgid = BNXT_QPLIB_NUM_GIDS_SUPPORTED;
bnxt_qplib_query_version(rcfw, attr->fw_ver);
--- a/drivers/infiniband/hw/bnxt_re/qplib_sp.h
+++ b/drivers/infiniband/hw/bnxt_re/qplib_sp.h
@@ -47,6 +47,7 @@
struct bnxt_qplib_dev_attr {
#define FW_VER_ARR_LEN 4
u8 fw_ver[FW_VER_ARR_LEN];
+#define BNXT_QPLIB_NUM_GIDS_SUPPORTED 256
u16 max_sgid;
u16 max_mrw;
u32 max_qp;
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