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qed: Fix possible error in populating max_tc field.

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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>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
sudarsana.kalluru@cavium.com 2017-04-19 03:19:52 -07:00 committed by David S. Miller
parent e9156cd26a
commit 66367dab30
1 changed files with 7 additions and 0 deletions
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7
drivers/net/ethernet/qlogic/qed/qed_dcbx.c
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@ -583,6 +583,13 @@ qed_dcbx_get_ets_data(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.
*/