[dpdk-dev] [PATCH 1/3] net/bnxt: fix to ignore resource qcaps error with older FW

[Ajit Khaparde <ajit.khaparde@broadcom.com>]

On some old versions of FW, bnxt_hwrm_func_resc_qcaps can return an
error. This is because the command was not implemented completely
in FW till the subsequent version. Ignore the error and continue with
the driver initialization.

Fixes: edafb57ba4a1 ("net/bnxt: fix VF resource allocation")
Cc: stable@dpdk.org

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
---
 drivers/net/bnxt/bnxt_hwrm.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index 2cba007ea..1d3732eee 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -692,7 +692,12 @@ int bnxt_hwrm_func_qcaps(struct bnxt *bp)
 			bp->flags |= BNXT_FLAG_NEW_RM;
 	}
 
-	return rc;
+	/* On older FW,
+	 * bnxt_hwrm_func_resc_qcaps can fail and cause init failure.
+	 * But the error can be ignored. Return success.
+	 */
+
+	return 0;
 }
 
 /* VNIC cap covers capability of all VNICs. So no need to pass vnic_id */
@@ -901,7 +906,7 @@ int bnxt_hwrm_func_resc_qcaps(struct bnxt *bp)
 
 	rc = bnxt_hwrm_send_message(bp, &req, sizeof(req), BNXT_USE_CHIMP_MB);
 
-	HWRM_CHECK_RESULT();
+	HWRM_CHECK_RESULT_SILENT();
 
 	if (BNXT_VF(bp)) {
 		bp->max_rsscos_ctx = rte_le_to_cpu_16(resp->max_rsscos_ctx);
-- 
2.21.0 (Apple Git-122.2)