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Message-ID: <1471026035-15323-19-git-send-email-rvatsavayi@caviumnetworks.com>
Date: Fri, 12 Aug 2016 11:20:35 -0700
From: Raghu Vatsavayi <rvatsavayi@...iumnetworks.com>
To: <davem@...emloft.net>
CC: <netdev@...r.kernel.org>,
Raghu Vatsavayi <rvatsavayi@...iumnetworks.com>,
Derek Chickles <derek.chickles@...iumnetworks.com>,
Satanand Burla <satananda.burla@...iumnetworks.com>,
Felix Manlunas <felix.manlunas@...iumnetworks.com>,
Raghu Vatsavayi <raghu.vatsavayi@...iumnetworks.com>
Subject: [PATCH net-next V2 18/18] liquidio:CN23XX pause frame support
Adds support for pause frame and priv flag for cn23xx
device.
Signed-off-by: Derek Chickles <derek.chickles@...iumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@...iumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@...iumnetworks.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@...iumnetworks.com>
---
drivers/net/ethernet/cavium/liquidio/lio_ethtool.c | 110 +++++++++++++++++++++
drivers/net/ethernet/cavium/liquidio/lio_main.c | 12 ++-
.../net/ethernet/cavium/liquidio/octeon_device.h | 11 ++-
3 files changed, 126 insertions(+), 7 deletions(-)
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c b/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c
index 1e7d683..a64eedf 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
@@ -659,6 +663,69 @@ 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)),
@@ -926,6 +993,27 @@ 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);
@@ -965,12 +1053,31 @@ 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);
@@ -981,6 +1088,8 @@ 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;
}
@@ -2097,6 +2206,7 @@ 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 a5ba8f6..5701a1f 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_main.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_main.c
@@ -2178,7 +2178,7 @@ 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)
@@ -3923,7 +3923,10 @@ 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,
@@ -4003,8 +4006,7 @@ 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;
@@ -4020,7 +4022,7 @@ 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 773eb09..a86fe2b 100644
--- a/drivers/net/ethernet/cavium/liquidio/octeon_device.h
+++ b/drivers/net/ethernet/cavium/liquidio/octeon_device.h
@@ -757,8 +757,15 @@ 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);
--
1.8.3.1
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