From: Raghu Vatsavayi Date: Thu, 1 Sep 2016 18:16:11 +0000 (-0700) Subject: liquidio:CN23XX pause frame support X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=30136395a2f63e1aca9a62bfd631feb3eb213428;p=linux-beck.git liquidio:CN23XX pause frame support Adds support for pause frame and priv flag for cn23xx device. Signed-off-by: Derek Chickles Signed-off-by: Satanand Burla Signed-off-by: Felix Manlunas Signed-off-by: Raghu Vatsavayi Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c b/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c index fb29a64b9e51..f163e0abbeb2 100644 --- a/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c +++ b/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c @@ -190,6 +190,10 @@ static const char oct_droq_stats_strings[][ETH_GSTRING_LEN] = { "buffer_alloc_failure", }; +/* LiquidIO driver private flags */ +static const char oct_priv_flags_strings[][ETH_GSTRING_LEN] = { +}; + #define OCTNIC_NCMD_AUTONEG_ON 0x1 #define OCTNIC_NCMD_PHY_ON 0x2 @@ -658,6 +662,69 @@ lio_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause) pause->rx_pause = oct->rx_pause; } +static int +lio_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause) +{ + /* Notes: Not supporting any auto negotiation in these + * drivers. + */ + struct lio *lio = GET_LIO(netdev); + struct octeon_device *oct = lio->oct_dev; + struct octnic_ctrl_pkt nctrl; + struct oct_link_info *linfo = &lio->linfo; + + int ret = 0; + + if (oct->chip_id != OCTEON_CN23XX_PF_VID) + return -EINVAL; + + if (linfo->link.s.duplex == 0) { + /*no flow control for half duplex*/ + if (pause->rx_pause || pause->tx_pause) + return -EINVAL; + } + + /*do not support autoneg of link flow control*/ + if (pause->autoneg == AUTONEG_ENABLE) + return -EINVAL; + + memset(&nctrl, 0, sizeof(struct octnic_ctrl_pkt)); + + nctrl.ncmd.u64 = 0; + nctrl.ncmd.s.cmd = OCTNET_CMD_SET_FLOW_CTL; + nctrl.iq_no = lio->linfo.txpciq[0].s.q_no; + nctrl.wait_time = 100; + nctrl.netpndev = (u64)netdev; + nctrl.cb_fn = liquidio_link_ctrl_cmd_completion; + + if (pause->rx_pause) { + /*enable rx pause*/ + nctrl.ncmd.s.param1 = 1; + } else { + /*disable rx pause*/ + nctrl.ncmd.s.param1 = 0; + } + + if (pause->tx_pause) { + /*enable tx pause*/ + nctrl.ncmd.s.param2 = 1; + } else { + /*disable tx pause*/ + nctrl.ncmd.s.param2 = 0; + } + + ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl); + if (ret < 0) { + dev_err(&oct->pci_dev->dev, "Failed to set pause parameter\n"); + return -EINVAL; + } + + oct->rx_pause = pause->rx_pause; + oct->tx_pause = pause->tx_pause; + + return 0; +} + static void lio_get_ethtool_stats(struct net_device *netdev, struct ethtool_stats *stats __attribute__((unused)), @@ -925,6 +992,27 @@ lio_get_ethtool_stats(struct net_device *netdev, } } +static void lio_get_priv_flags_strings(struct lio *lio, u8 *data) +{ + struct octeon_device *oct_dev = lio->oct_dev; + int i; + + switch (oct_dev->chip_id) { + case OCTEON_CN23XX_PF_VID: + for (i = 0; i < ARRAY_SIZE(oct_priv_flags_strings); i++) { + sprintf(data, "%s", oct_priv_flags_strings[i]); + data += ETH_GSTRING_LEN; + } + break; + case OCTEON_CN68XX: + case OCTEON_CN66XX: + break; + default: + netif_info(lio, drv, lio->netdev, "Unknown Chip !!\n"); + break; + } +} + static void lio_get_strings(struct net_device *netdev, u32 stringset, u8 *data) { struct lio *lio = GET_LIO(netdev); @@ -964,12 +1052,31 @@ static void lio_get_strings(struct net_device *netdev, u32 stringset, u8 *data) } break; + case ETH_SS_PRIV_FLAGS: + lio_get_priv_flags_strings(lio, data); + break; default: netif_info(lio, drv, lio->netdev, "Unknown Stringset !!\n"); break; } } +static int lio_get_priv_flags_ss_count(struct lio *lio) +{ + struct octeon_device *oct_dev = lio->oct_dev; + + switch (oct_dev->chip_id) { + case OCTEON_CN23XX_PF_VID: + return ARRAY_SIZE(oct_priv_flags_strings); + case OCTEON_CN68XX: + case OCTEON_CN66XX: + return -EOPNOTSUPP; + default: + netif_info(lio, drv, lio->netdev, "Unknown Chip !!\n"); + return -EOPNOTSUPP; + } +} + static int lio_get_sset_count(struct net_device *netdev, int sset) { struct lio *lio = GET_LIO(netdev); @@ -980,6 +1087,8 @@ static int lio_get_sset_count(struct net_device *netdev, int sset) return (ARRAY_SIZE(oct_stats_strings) + ARRAY_SIZE(oct_iq_stats_strings) * oct_dev->num_iqs + ARRAY_SIZE(oct_droq_stats_strings) * oct_dev->num_oqs); + case ETH_SS_PRIV_FLAGS: + return lio_get_priv_flags_ss_count(lio); default: return -EOPNOTSUPP; } @@ -2096,6 +2205,7 @@ static const struct ethtool_ops lio_ethtool_ops = { .get_strings = lio_get_strings, .get_ethtool_stats = lio_get_ethtool_stats, .get_pauseparam = lio_get_pauseparam, + .set_pauseparam = lio_set_pauseparam, .get_regs_len = lio_get_regs_len, .get_regs = lio_get_regs, .get_msglevel = lio_get_msglevel, diff --git a/drivers/net/ethernet/cavium/liquidio/lio_main.c b/drivers/net/ethernet/cavium/liquidio/lio_main.c index a2460e52fca9..afc6f9dc8119 100644 --- a/drivers/net/ethernet/cavium/liquidio/lio_main.c +++ b/drivers/net/ethernet/cavium/liquidio/lio_main.c @@ -2184,7 +2184,7 @@ static void if_cfg_callback(struct octeon_device *oct, struct liquidio_if_cfg_context *ctx; resp = (struct liquidio_if_cfg_resp *)sc->virtrptr; - ctx = (struct liquidio_if_cfg_context *)sc->ctxptr; + ctx = (struct liquidio_if_cfg_context *)sc->ctxptr; oct = lio_get_device(ctx->octeon_id); if (resp->status) @@ -3934,7 +3934,10 @@ static int setup_nic_devices(struct octeon_device *octeon_dev) /* Register ethtool support */ liquidio_set_ethtool_ops(netdev); - octeon_dev->priv_flags = 0x0; + if (lio->oct_dev->chip_id == OCTEON_CN23XX_PF_VID) + octeon_dev->priv_flags = OCT_PRIV_FLAG_DEFAULT; + else + octeon_dev->priv_flags = 0x0; if (netdev->features & NETIF_F_LRO) liquidio_set_feature(netdev, OCTNET_CMD_LRO_ENABLE, @@ -4015,8 +4018,7 @@ static int liquidio_init_nic_module(struct octeon_device *oct) /* run port_config command for each port */ oct->ifcount = num_nic_ports; - memset(oct->props, 0, - sizeof(struct octdev_props) * num_nic_ports); + memset(oct->props, 0, sizeof(struct octdev_props) * num_nic_ports); for (i = 0; i < MAX_OCTEON_LINKS; i++) oct->props[i].gmxport = -1; @@ -4032,7 +4034,7 @@ static int liquidio_init_nic_module(struct octeon_device *oct) /* Initialize interrupt moderation params */ intrmod_cfg = &((struct octeon_device *)oct)->intrmod; intrmod_cfg->rx_enable = 1; - intrmod_cfg->check_intrvl = LIO_INTRMOD_CHECK_INTERVAL; + intrmod_cfg->check_intrvl = LIO_INTRMOD_CHECK_INTERVAL; intrmod_cfg->maxpkt_ratethr = LIO_INTRMOD_MAXPKT_RATETHR; intrmod_cfg->minpkt_ratethr = LIO_INTRMOD_MINPKT_RATETHR; intrmod_cfg->rx_maxcnt_trigger = LIO_INTRMOD_RXMAXCNT_TRIGGER; diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_device.h b/drivers/net/ethernet/cavium/liquidio/octeon_device.h index 6062ff332ad2..da15c2ae9330 100644 --- a/drivers/net/ethernet/cavium/liquidio/octeon_device.h +++ b/drivers/net/ethernet/cavium/liquidio/octeon_device.h @@ -755,8 +755,15 @@ enum { OCT_PRIV_FLAG_TX_BYTES = 0, /* Tx interrupts by pending byte count */ }; -static inline void lio_set_priv_flag(struct octeon_device *octdev, u32 flag, - u32 val) +#define OCT_PRIV_FLAG_DEFAULT 0x0 + +static inline u32 lio_get_priv_flag(struct octeon_device *octdev, u32 flag) +{ + return !!(octdev->priv_flags & (0x1 << flag)); +} + +static inline void lio_set_priv_flag(struct octeon_device *octdev, + u32 flag, u32 val) { if (val) octdev->priv_flags |= (0x1 << flag);