[PATCH v2 29/40] bnxt: work around HWRM error when creating rings
From: Stephen Hurd <hidden>
Date: 2016-05-13 22:51:00
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
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 <redacted> Reviewed-by: Ajit Kumar Khaparde <ajit.khaparde@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