RDMA/bnxt_re: Restrict the max_gids to 256

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@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/infiniband/hw/bnxt_re/qplib_sp.c b/drivers/infiniband/hw/bnxt_re/qplib_sp.c
index 4cd475ea97a24e1064585e338bceedb22676cbca..64d44f51db4b6cbf0e080cdb74aa5d9832a63c02 100644 (file)
--- a/drivers/infiniband/hw/bnxt_re/qplib_sp.c
+++ b/drivers/infiniband/hw/bnxt_re/qplib_sp.c
@@ -149,7 +149,7 @@ int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
        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);
 

diff --git a/drivers/infiniband/hw/bnxt_re/qplib_sp.h b/drivers/infiniband/hw/bnxt_re/qplib_sp.h
index 6404f0da10517a5040be2f0965f9d3701d7bb104..967890cd81f271a5dec23af0818469146fd18b2e 100644 (file)
--- 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;