IB/ehca: Use default value for Local CA ACK Delay if FW returns 0

[pandora-kernel.git] / drivers / infiniband / hw / ehca / ehca_hca.c

diff --git a/drivers/infiniband/hw/ehca/ehca_hca.c b/drivers/infiniband/hw/ehca/ehca_hca.c
index 2515cbd..4628822 100644 (file)
--- a/drivers/infiniband/hw/ehca/ehca_hca.c
+++ b/drivers/infiniband/hw/ehca/ehca_hca.c
@@ -101,7 +101,6 @@ int ehca_query_device(struct ib_device *ibdev, struct ib_device_attr *props)
        props->max_ee          = limit_uint(rblock->max_rd_ee_context);
        props->max_rdd         = limit_uint(rblock->max_rd_domain);
        props->max_fmr         = limit_uint(rblock->max_mr);
-       props->local_ca_ack_delay  = limit_uint(rblock->local_ca_ack_delay);
        props->max_qp_rd_atom  = limit_uint(rblock->max_rr_qp);
        props->max_ee_rd_atom  = limit_uint(rblock->max_rr_ee_context);
        props->max_res_rd_atom = limit_uint(rblock->max_rr_hca);
@@ -115,7 +114,9 @@ int ehca_query_device(struct ib_device *ibdev, struct ib_device_attr *props)
        }
 
        props->max_pkeys           = 16;
-       props->local_ca_ack_delay  = limit_uint(rblock->local_ca_ack_delay);
+       /* Some FW versions say 0 here; insert sensible value in that case */
+       props->local_ca_ack_delay  = rblock->local_ca_ack_delay ?
+               min_t(u8, rblock->local_ca_ack_delay, 255) : 12;
        props->max_raw_ipv6_qp     = limit_uint(rblock->max_raw_ipv6_qp);
        props->max_raw_ethy_qp     = limit_uint(rblock->max_raw_ethy_qp);
        props->max_mcast_grp       = limit_uint(rblock->max_mcast_grp);
@@ -136,7 +137,7 @@ query_device1:
        return ret;
 }
 
-static int map_mtu(struct ehca_shca *shca, u32 fw_mtu)
+static enum ib_mtu map_mtu(struct ehca_shca *shca, u32 fw_mtu)
 {
        switch (fw_mtu) {
        case 0x1:
@@ -156,7 +157,7 @@ static int map_mtu(struct ehca_shca *shca, u32 fw_mtu)
        }
 }
 
-static int map_number_of_vls(struct ehca_shca *shca, u32 vl_cap)
+static u8 map_number_of_vls(struct ehca_shca *shca, u32 vl_cap)
 {
        switch (vl_cap) {
        case 0x1: