[dpdk-dev] [PATCH 2/3] net/bnxt: fix ver get HWRM command

[Kalesh A P <kalesh-anakkur.purayil@broadcom.com>]

From: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>

Fix HWRM_VER_GET command to handle DEV_NOT_RDY state.

Driver should fail probe if the device is not ready.
Conversely, the HWRM_VER_GET poll after reset can safely
retry until the existing timeout is exceeded.

Fixes: 804e746c7b73 ("net/bnxt: add hardware resource manager init code")
Cc: stable@dpdk.org

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Randy Schacher <stuart.schacher@broadcom.com>
Reviewed-by: Ajit Kumar Khaparde <ajit.khaparde@broadcom.com>
---
 drivers/net/bnxt/bnxt_hwrm.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index 02b0a21..5ef0845 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -1217,6 +1217,11 @@ int bnxt_hwrm_ver_get(struct bnxt *bp, uint32_t timeout)
 	else
 		HWRM_CHECK_RESULT();
 
+	if (resp->flags & HWRM_VER_GET_OUTPUT_FLAGS_DEV_NOT_RDY) {
+		rc = -EAGAIN;
+		goto error;
+	}
+
 	PMD_DRV_LOG(INFO, "%d.%d.%d:%d.%d.%d.%d\n",
 		resp->hwrm_intf_maj_8b, resp->hwrm_intf_min_8b,
 		resp->hwrm_intf_upd_8b, resp->hwrm_fw_maj_8b,
@@ -6045,6 +6050,10 @@ int bnxt_hwrm_poll_ver_get(struct bnxt *bp)
 	rc = bnxt_hwrm_send_message(bp, &req, sizeof(req), BNXT_USE_CHIMP_MB);
 
 	HWRM_CHECK_RESULT_SILENT();
+
+	if (resp->flags & HWRM_VER_GET_OUTPUT_FLAGS_DEV_NOT_RDY)
+		rc = -EAGAIN;
+
 	HWRM_UNLOCK();
 
 	return rc;
-- 
2.10.1