diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0199-dpaa2-eth-Add-DCB-ops.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/701-net-0199-dpaa2-eth-Add-DCB-ops.patch | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0199-dpaa2-eth-Add-DCB-ops.patch b/target/linux/layerscape/patches-5.4/701-net-0199-dpaa2-eth-Add-DCB-ops.patch new file mode 100644 index 0000000000..3bf2826280 --- /dev/null +++ b/target/linux/layerscape/patches-5.4/701-net-0199-dpaa2-eth-Add-DCB-ops.patch @@ -0,0 +1,154 @@ +From a893019278e8030fbe251cdaa9d93b8257d1c083 Mon Sep 17 00:00:00 2001 +From: Ioana Radulescu <ruxandra.radulescu@nxp.com> +Date: Thu, 5 Sep 2019 19:31:32 +0300 +Subject: [PATCH] dpaa2-eth: Add DCB ops + +Add a skeleton implementation of DCB PFC ops. Actual hardware +configuration to be added in further commits. + +Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com> +--- + drivers/net/ethernet/freescale/dpaa2/Kconfig | 9 +++ + drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 84 ++++++++++++++++++++++++ + drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h | 5 ++ + 3 files changed, 98 insertions(+) + +--- a/drivers/net/ethernet/freescale/dpaa2/Kconfig ++++ b/drivers/net/ethernet/freescale/dpaa2/Kconfig +@@ -8,6 +8,15 @@ config FSL_DPAA2_ETH + The driver manages network objects discovered on the Freescale + MC bus. + ++if FSL_DPAA2_ETH ++config FSL_DPAA2_ETH_DCB ++ bool "Data Center Bridging (DCB) Support" ++ default n ++ depends on DCB ++ help ++ Enable Priority-Based Flow Control (PFC) support in the driver ++endif ++ + config FSL_DPAA2_PTP_CLOCK + tristate "Freescale DPAA2 PTP Clock" + depends on FSL_DPAA2_ETH && PTP_1588_CLOCK_QORIQ +--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c ++++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c +@@ -3607,6 +3607,81 @@ static void del_ch_napi(struct dpaa2_eth + } + } + ++#ifdef CONFIG_FSL_DPAA2_ETH_DCB ++static int dpaa2_eth_dcbnl_ieee_getpfc(struct net_device *net_dev, ++ struct ieee_pfc *pfc) ++{ ++ struct dpaa2_eth_priv *priv = netdev_priv(net_dev); ++ ++ memcpy(pfc, &priv->pfc, sizeof(priv->pfc)); ++ pfc->pfc_cap = dpaa2_eth_tc_count(priv); ++ ++ return 0; ++} ++ ++static int dpaa2_eth_dcbnl_ieee_setpfc(struct net_device *net_dev, ++ struct ieee_pfc *pfc) ++{ ++ struct dpaa2_eth_priv *priv = netdev_priv(net_dev); ++ ++ if (pfc->mbc || pfc->delay) ++ return -EOPNOTSUPP; ++ ++ /* If same PFC enabled mask, nothing to do */ ++ if (priv->pfc.pfc_en == pfc->pfc_en) ++ return 0; ++ ++ memcpy(&priv->pfc, pfc, sizeof(priv->pfc)); ++ ++ return 0; ++} ++ ++static u8 dpaa2_eth_dcbnl_getdcbx(struct net_device *net_dev) ++{ ++ struct dpaa2_eth_priv *priv = netdev_priv(net_dev); ++ ++ return priv->dcbx_mode; ++} ++ ++static u8 dpaa2_eth_dcbnl_setdcbx(struct net_device *net_dev, u8 mode) ++{ ++ struct dpaa2_eth_priv *priv = netdev_priv(net_dev); ++ ++ priv->dcbx_mode = mode; ++ return 0; ++} ++ ++static u8 dpaa2_eth_dcbnl_getcap(struct net_device *net_dev, int capid, u8 *cap) ++{ ++ struct dpaa2_eth_priv *priv = netdev_priv(net_dev); ++ ++ switch (capid) { ++ case DCB_CAP_ATTR_PFC: ++ *cap = true; ++ break; ++ case DCB_CAP_ATTR_PFC_TCS: ++ *cap = 1 << (dpaa2_eth_tc_count(priv) - 1); ++ break; ++ case DCB_CAP_ATTR_DCBX: ++ *cap = priv->dcbx_mode; ++ break; ++ default: ++ *cap = false; ++ break; ++ } ++ ++ return 0; ++} ++ ++const struct dcbnl_rtnl_ops dpaa2_eth_dcbnl_ops = { ++ .ieee_getpfc = dpaa2_eth_dcbnl_ieee_getpfc, ++ .ieee_setpfc = dpaa2_eth_dcbnl_ieee_setpfc, ++ .getdcbx = dpaa2_eth_dcbnl_getdcbx, ++ .setdcbx = dpaa2_eth_dcbnl_setdcbx, ++ .getcap = dpaa2_eth_dcbnl_getcap, ++}; ++#endif ++ + static int dpaa2_eth_probe(struct fsl_mc_device *dpni_dev) + { + struct device *dev; +@@ -3696,6 +3771,15 @@ static int dpaa2_eth_probe(struct fsl_mc + if (err) + goto err_alloc_rings; + ++#ifdef CONFIG_FSL_DPAA2_ETH_DCB ++ if (dpaa2_eth_has_pause_support(priv) && priv->vlan_cls_enabled) { ++ priv->dcbx_mode = DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_IEEE; ++ net_dev->dcbnl_ops = &dpaa2_eth_dcbnl_ops; ++ } else { ++ dev_dbg(dev, "PFC not supported\n"); ++ } ++#endif ++ + err = setup_irqs(dpni_dev); + if (err) { + netdev_warn(net_dev, "Failed to set link interrupt, fall back to polling\n"); +--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h ++++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h +@@ -6,6 +6,7 @@ + #ifndef __DPAA2_ETH_H + #define __DPAA2_ETH_H + ++#include <linux/dcbnl.h> + #include <linux/netdevice.h> + #include <linux/if_vlan.h> + #include <linux/fsl/mc.h> +@@ -422,6 +423,10 @@ struct dpaa2_eth_priv { + struct dpaa2_eth_cls_rule *cls_rules; + u8 rx_cls_enabled; + u8 vlan_cls_enabled; ++#ifdef CONFIG_FSL_DPAA2_ETH_DCB ++ u8 dcbx_mode; ++ struct ieee_pfc pfc; ++#endif + struct bpf_prog *xdp_prog; + #ifdef CONFIG_DEBUG_FS + struct dpaa2_debugfs dbg; |