[dpdk-dev] [PATCH v2 29/40] bnxt: work around HWRM error when creating rings

[Stephen Hurd]

Some HWRM versions will stop responding if we request poll mode interrupt.
As a workaround, request an MSI interrupt even though we never enable it.

Signed-off-by: Stephen Hurd <stephen.hurd at broadcom.com>
Reviewed-by: Ajit Kumar Khaparde <ajit.khaparde at broadcom.com>
---
 drivers/net/bnxt/bnxt_hwrm.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index b5bc473..897e766 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -581,7 +581,11 @@ int bnxt_hwrm_ring_alloc(struct bnxt *bp,
                break;
        case HWRM_RING_ALLOC_INPUT_RING_TYPE_CMPL:
                req.ring_type = ring_type;
-               req.int_mode = HWRM_RING_ALLOC_INPUT_INT_MODE_POLL;
+               /*
+                * TODO: Some HWRM versions crash with
+                * HWRM_RING_ALLOC_INPUT_INT_MODE_POLL
+                */
+               req.int_mode = HWRM_RING_ALLOC_INPUT_INT_MODE_MSIX;
                req.length = rte_cpu_to_le_32(ring->ring_size);
                break;
        default:
-- 
1.9.1