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[net,1/4] qed: Fix possible error in populating max_tc field.

Message ID 20170419101955.26444-2-sudarsana.kalluru@cavium.com
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Sudarsana Reddy Kalluru April 19, 2017, 10:19 a.m. UTC 
Some adapters may not publish the max_tc value. Populate the default
value for max_tc field in case the mfw didn't provide one.

Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
---
 drivers/net/ethernet/qlogic/qed/qed_dcbx.c | 7 +++++++
 1 file changed, 7 insertions(+)
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Patch

diff --git a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
index 5bd36a4..c24436c 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
@@ -583,6 +583,13 @@  static int qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn)
 		   p_params->ets_cbs,
 		   p_ets->pri_tc_tbl[0], p_params->max_ets_tc);
 
+	if (p_params->ets_enabled && !p_params->max_ets_tc) {
+		p_params->max_ets_tc = QED_MAX_PFC_PRIORITIES;
+		DP_VERBOSE(p_hwfn, QED_MSG_DCB,
+			   "ETS params: max_ets_tc is forced to %d\n",
+		p_params->max_ets_tc);
+	}
+
 	/* 8 bit tsa and bw data corresponding to each of the 8 TC's are
 	 * encoded in a type u32 array of size 2.
 	 */