diff options
| author | Mintz, Yuval <Yuval.Mintz@cavium.com> | 2017-06-20 16:00:01 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-06-20 12:34:07 -0400 |
| commit | 26462ad9c7ea18643f1a37adeab8b7eff6c5f5f4 (patch) | |
| tree | 627b19c7e02a73548c689aa77932799284956f73 /drivers/net/ethernet/qlogic/qed/qed_dcbx.c | |
| parent | 1a4a69751f4d24ffd3530f5a9694636db1566a3b (diff) | |
| download | linux-26462ad9c7ea18643f1a37adeab8b7eff6c5f5f4.tar.bz2 | |
qed: RoCE EDPM to honor PFC
Configure device according to DCBx results so that EDPMs
made by RoCE would honor flow-control.
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/qlogic/qed/qed_dcbx.c')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qed/qed_dcbx.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c index e2a62c091b80..15b516a84582 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c +++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c @@ -896,6 +896,22 @@ qed_dcbx_mib_update_event(struct qed_hwfn *p_hwfn, } qed_dcbx_get_params(p_hwfn, &p_hwfn->p_dcbx_info->get, type); + + if (type == QED_DCBX_OPERATIONAL_MIB) { + struct qed_dcbx_results *p_data; + u16 val; + + /* Configure in NIG which protocols support EDPM and should + * honor PFC. + */ + p_data = &p_hwfn->p_dcbx_info->results; + val = (0x1 << p_data->arr[DCBX_PROTOCOL_ROCE].tc) | + (0x1 << p_data->arr[DCBX_PROTOCOL_ROCE_V2].tc); + val <<= NIG_REG_TX_EDPM_CTRL_TX_EDPM_TC_EN_SHIFT; + val |= NIG_REG_TX_EDPM_CTRL_TX_EDPM_EN; + qed_wr(p_hwfn, p_ptt, NIG_REG_TX_EDPM_CTRL, val); + } + qed_dcbx_aen(p_hwfn, type); return rc; |