bnxt_en: Disable RDMA support on the 57500 chips.

There is no RDMA support on 57500 chips yet, so prevent bnxt_re from
registering on these chips.  There is intermittent failure if bnxt_re
is allowed to register and proceed with RDMA operations.

Fixes: 1ab968d2f1d6 ("bnxt_en: Add PCI ID for BCM57508 device.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c
index beee61292d5e522bae0842e5e76253eeb4e1d1f4..b59b382d34f94277a9a33e52223fda8ab7f19af3 100644 (file)
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c
@@ -43,6 +43,9 @@ static int bnxt_register_dev(struct bnxt_en_dev *edev, int ulp_id,
        if (ulp_id == BNXT_ROCE_ULP) {
                unsigned int max_stat_ctxs;
 
+               if (bp->flags & BNXT_FLAG_CHIP_P5)
+                       return -EOPNOTSUPP;
+
                max_stat_ctxs = bnxt_get_max_func_stat_ctxs(bp);
                if (max_stat_ctxs <= BNXT_MIN_ROCE_STAT_CTXS ||
                    bp->num_stat_ctxs == max_stat_ctxs)