diff options
Diffstat (limited to 'pkgs/patches-linux-5.15/704-net-next-ethernet-marvell-mvnetaMQPrioQueue.patch')
| -rw-r--r-- | pkgs/patches-linux-5.15/704-net-next-ethernet-marvell-mvnetaMQPrioQueue.patch | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/pkgs/patches-linux-5.15/704-net-next-ethernet-marvell-mvnetaMQPrioQueue.patch b/pkgs/patches-linux-5.15/704-net-next-ethernet-marvell-mvnetaMQPrioQueue.patch new file mode 100644 index 0000000..73563a5 --- /dev/null +++ b/pkgs/patches-linux-5.15/704-net-next-ethernet-marvell-mvnetaMQPrioQueue.patch @@ -0,0 +1,97 @@ +From e9f7099d0730341b24c057acbf545dd019581db6 Mon Sep 17 00:00:00 2001 +From: Maxime Chevallier <maxime.chevallier@bootlin.com> +Date: Fri, 26 Nov 2021 12:20:55 +0100 +Subject: net: mvneta: Allow having more than one queue per TC + +The current mqprio implementation assumed that we are only using one +queue per TC. Use the offset and count parameters to allow using +multiple queues per TC. In that case, the controller will use a standard +round-robin algorithm to pick queues assigned to the same TC, with the +same priority. + +This only applies to VLAN priorities in ingress traffic, each TC +corresponding to a vlan priority. + +Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/ethernet/marvell/mvneta.c | 35 ++++++++++++++++++++--------------- + 1 file changed, 20 insertions(+), 15 deletions(-) + +(limited to 'drivers/net/ethernet/marvell/mvneta.c') + +--- a/drivers/net/ethernet/marvell/mvneta.c ++++ b/drivers/net/ethernet/marvell/mvneta.c +@@ -493,7 +493,6 @@ struct mvneta_port { + u8 mcast_count[256]; + u16 tx_ring_size; + u16 rx_ring_size; +- u8 prio_tc_map[8]; + + phy_interface_t phy_interface; + struct device_node *dn; +@@ -4936,13 +4935,12 @@ static void mvneta_clear_rx_prio_map(str + mvreg_write(pp, MVNETA_VLAN_PRIO_TO_RXQ, 0); + } + +-static void mvneta_setup_rx_prio_map(struct mvneta_port *pp) ++static void mvneta_map_vlan_prio_to_rxq(struct mvneta_port *pp, u8 pri, u8 rxq) + { +- u32 val = 0; +- int i; ++ u32 val = mvreg_read(pp, MVNETA_VLAN_PRIO_TO_RXQ); + +- for (i = 0; i < rxq_number; i++) +- val |= MVNETA_VLAN_PRIO_RXQ_MAP(i, pp->prio_tc_map[i]); ++ val &= ~MVNETA_VLAN_PRIO_RXQ_MAP(pri, 0x7); ++ val |= MVNETA_VLAN_PRIO_RXQ_MAP(pri, rxq); + + mvreg_write(pp, MVNETA_VLAN_PRIO_TO_RXQ, val); + } +@@ -4951,8 +4949,8 @@ static int mvneta_setup_mqprio(struct ne + struct tc_mqprio_qopt_offload *mqprio) + { + struct mvneta_port *pp = netdev_priv(dev); ++ int rxq, tc; + u8 num_tc; +- int i; + + if (mqprio->qopt.hw != TC_MQPRIO_HW_OFFLOAD_TCS) + return 0; +@@ -4962,21 +4960,28 @@ static int mvneta_setup_mqprio(struct ne + if (num_tc > rxq_number) + return -EINVAL; + ++ mvneta_clear_rx_prio_map(pp); ++ + if (!num_tc) { +- mvneta_clear_rx_prio_map(pp); + netdev_reset_tc(dev); + return 0; + } + +- memcpy(pp->prio_tc_map, mqprio->qopt.prio_tc_map, +- sizeof(pp->prio_tc_map)); ++ netdev_set_num_tc(dev, mqprio->qopt.num_tc); + +- mvneta_setup_rx_prio_map(pp); ++ for (tc = 0; tc < mqprio->qopt.num_tc; tc++) { ++ netdev_set_tc_queue(dev, tc, mqprio->qopt.count[tc], ++ mqprio->qopt.offset[tc]); ++ ++ for (rxq = mqprio->qopt.offset[tc]; ++ rxq < mqprio->qopt.count[tc] + mqprio->qopt.offset[tc]; ++ rxq++) { ++ if (rxq >= rxq_number) ++ return -EINVAL; + +- netdev_set_num_tc(dev, mqprio->qopt.num_tc); +- for (i = 0; i < mqprio->qopt.num_tc; i++) +- netdev_set_tc_queue(dev, i, mqprio->qopt.count[i], +- mqprio->qopt.offset[i]); ++ mvneta_map_vlan_prio_to_rxq(pp, tc, rxq); ++ } ++ } + + return 0; + } |