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Commit 854a2020 authored by Devesh Sharma's avatar Devesh Sharma Committed by Jason Gunthorpe
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RDMA/bnxt_re: Limit max_pkey to 16 bit value 



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: default avatarDevesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: default avatarSelvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
parent 4c01f2e3

drivers/infiniband/hw/bnxt_re/qplib_sp.c

+9 −1
Original line number Diff line number Diff line
@@ -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) *