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RDMA/bnxt_re: Limit max_pkey to 16 bit value

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Some FW versios return pkey values more than 0xFFFF. pkey_tbl_len of
ib_port_attr is 16bit value. So restricting max_pkeys to 0xFFFF.

Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Devesh Sharma 2018-10-08 03:28:02 -07:00 committed by Jason Gunthorpe
parent 4c01f2e3a9
commit 854a202001
1 changed files with 9 additions and 1 deletions
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10
drivers/infiniband/hw/bnxt_re/qplib_sp.c
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@ -137,8 +137,16 @@ int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
attr->max_srq = le16_to_cpu(sb->max_srq);
attr->max_srq_wqes = le32_to_cpu(sb->max_srq_wr) - 1;
attr->max_srq_sges = sb->max_srq_sge;
/* Bono only reports 1 PKEY for now, but it can support > 1 */
attr->max_pkey = le32_to_cpu(sb->max_pkeys);
/*
* Some versions of FW reports more than 0xFFFF.
* Restrict it for now to 0xFFFF to avoid
* reporting trucated value
*/
if (attr->max_pkey > 0xFFFF) {
/* ib_port_attr::pkey_tbl_len is u16 */
attr->max_pkey = 0xFFFF;
}
attr->max_inline_data = le32_to_cpu(sb->max_inline_data);
attr->l2_db_size = (sb->l2_db_space_size + 1) *