diff options
| author | Po Liu <po.liu@nxp.com> | 2019-11-15 06:33:33 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-11-16 23:49:16 +0300 |
| commit | 34c6adf1977b611fca3b824ad12a2a415e1e420e (patch) | |
| tree | b2f974fcde2faedca773c20a16d2ce051ba868a1 /drivers/net/ethernet/freescale/enetc/enetc_cbdr.c | |
| parent | c3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3 (diff) | |
| download | linux-34c6adf1977b611fca3b824ad12a2a415e1e420e.tar.xz | |
enetc: Configure the Time-Aware Scheduler via tc-taprio offload
ENETC supports in hardware for time-based egress shaping according
to IEEE 802.1Qbv. This patch implement the Qbv enablement by the
hardware offload method qdisc tc-taprio method.
Also update cbdr writeback to up level since control bd ring may
writeback data to control bd ring.
Signed-off-by: Po Liu <Po.Liu@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/freescale/enetc/enetc_cbdr.c')
| -rw-r--r-- | drivers/net/ethernet/freescale/enetc/enetc_cbdr.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_cbdr.c b/drivers/net/ethernet/freescale/enetc/enetc_cbdr.c index de466b71bf8f..201cbc362e33 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_cbdr.c +++ b/drivers/net/ethernet/freescale/enetc/enetc_cbdr.c @@ -32,7 +32,7 @@ static int enetc_cbd_unused(struct enetc_cbdr *r) r->bd_count; } -static int enetc_send_cmd(struct enetc_si *si, struct enetc_cbd *cbd) +int enetc_send_cmd(struct enetc_si *si, struct enetc_cbd *cbd) { struct enetc_cbdr *ring = &si->cbd_ring; int timeout = ENETC_CBDR_TIMEOUT; @@ -66,6 +66,9 @@ static int enetc_send_cmd(struct enetc_si *si, struct enetc_cbd *cbd) if (!timeout) return -EBUSY; + /* CBD may writeback data, feedback up level */ + *cbd = *dest_cbd; + enetc_clean_cbdr(si); return 0; |