From 8d018621085b8d00511768c343d941676bd77ee9 Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Thu, 20 Dec 2007 20:05:44 -0800 Subject: [PATCH] [TG3]: Separate requested and actual flow control parameters This patch removes the TX and RX flow control flags from tg3_flags and adds two new flow control variables, flowctrl and active_flowctrl. Signed-off-by: Matt Carlson Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/tg3.c | 69 ++++++++++++++++++++++++----------------------- drivers/net/tg3.h | 9 ++++--- 2 files changed, 42 insertions(+), 36 deletions(-) diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 1f0fd764324..ad0289ab26c 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -1602,17 +1602,19 @@ static void tg3_link_report(struct tg3 *tp) (tp->link_config.active_duplex == DUPLEX_FULL ? "full" : "half")); - printk(KERN_INFO PFX "%s: Flow control is %s for TX and " - "%s for RX.\n", + printk(KERN_INFO PFX + "%s: Flow control is %s for TX and %s for RX.\n", tp->dev->name, - (tp->tg3_flags & TG3_FLAG_TX_PAUSE) ? "on" : "off", - (tp->tg3_flags & TG3_FLAG_RX_PAUSE) ? "on" : "off"); + (tp->link_config.active_flowctrl & TG3_FLOW_CTRL_TX) ? + "on" : "off", + (tp->link_config.active_flowctrl & TG3_FLOW_CTRL_RX) ? + "on" : "off"); } } static void tg3_setup_flow_control(struct tg3 *tp, u32 local_adv, u32 remote_adv) { - u32 new_tg3_flags = 0; + u8 new_tg3_flags = 0; u32 old_rx_mode = tp->rx_mode; u32 old_tx_mode = tp->tx_mode; @@ -1639,31 +1641,27 @@ static void tg3_setup_flow_control(struct tg3 *tp, u32 local_adv, u32 remote_adv if (local_adv & ADVERTISE_PAUSE_CAP) { if (local_adv & ADVERTISE_PAUSE_ASYM) { if (remote_adv & LPA_PAUSE_CAP) - new_tg3_flags |= - (TG3_FLAG_RX_PAUSE | - TG3_FLAG_TX_PAUSE); + new_tg3_flags = TG3_FLOW_CTRL_RX | + TG3_FLOW_CTRL_TX; else if (remote_adv & LPA_PAUSE_ASYM) - new_tg3_flags |= - (TG3_FLAG_RX_PAUSE); + new_tg3_flags = TG3_FLOW_CTRL_RX; } else { if (remote_adv & LPA_PAUSE_CAP) - new_tg3_flags |= - (TG3_FLAG_RX_PAUSE | - TG3_FLAG_TX_PAUSE); + new_tg3_flags = TG3_FLOW_CTRL_RX | + TG3_FLOW_CTRL_TX; } } else if (local_adv & ADVERTISE_PAUSE_ASYM) { if ((remote_adv & LPA_PAUSE_CAP) && - (remote_adv & LPA_PAUSE_ASYM)) - new_tg3_flags |= TG3_FLAG_TX_PAUSE; + (remote_adv & LPA_PAUSE_ASYM)) + new_tg3_flags = TG3_FLOW_CTRL_TX; } - - tp->tg3_flags &= ~(TG3_FLAG_RX_PAUSE | TG3_FLAG_TX_PAUSE); - tp->tg3_flags |= new_tg3_flags; } else { - new_tg3_flags = tp->tg3_flags; + new_tg3_flags = tp->link_config.flowctrl; } - if (new_tg3_flags & TG3_FLAG_RX_PAUSE) + tp->link_config.active_flowctrl = new_tg3_flags; + + if (new_tg3_flags & TG3_FLOW_CTRL_RX) tp->rx_mode |= RX_MODE_FLOW_CTRL_ENABLE; else tp->rx_mode &= ~RX_MODE_FLOW_CTRL_ENABLE; @@ -1672,7 +1670,7 @@ static void tg3_setup_flow_control(struct tg3 *tp, u32 local_adv, u32 remote_adv tw32_f(MAC_RX_MODE, tp->rx_mode); } - if (new_tg3_flags & TG3_FLAG_TX_PAUSE) + if (new_tg3_flags & TG3_FLOW_CTRL_TX) tp->tx_mode |= TX_MODE_FLOW_CTRL_ENABLE; else tp->tx_mode &= ~TX_MODE_FLOW_CTRL_ENABLE; @@ -2812,9 +2810,7 @@ static int tg3_setup_fiber_phy(struct tg3 *tp, int force_reset) int current_link_up; int i; - orig_pause_cfg = - (tp->tg3_flags & (TG3_FLAG_RX_PAUSE | - TG3_FLAG_TX_PAUSE)); + orig_pause_cfg = tp->link_config.active_flowctrl; orig_active_speed = tp->link_config.active_speed; orig_active_duplex = tp->link_config.active_duplex; @@ -2903,9 +2899,7 @@ static int tg3_setup_fiber_phy(struct tg3 *tp, int force_reset) netif_carrier_off(tp->dev); tg3_link_report(tp); } else { - u32 now_pause_cfg = - tp->tg3_flags & (TG3_FLAG_RX_PAUSE | - TG3_FLAG_TX_PAUSE); + u32 now_pause_cfg = tp->link_config.active_flowctrl; if (orig_pause_cfg != now_pause_cfg || orig_active_speed != tp->link_config.active_speed || orig_active_duplex != tp->link_config.active_duplex) @@ -8569,8 +8563,16 @@ static void tg3_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam struct tg3 *tp = netdev_priv(dev); epause->autoneg = (tp->tg3_flags & TG3_FLAG_PAUSE_AUTONEG) != 0; - epause->rx_pause = (tp->tg3_flags & TG3_FLAG_RX_PAUSE) != 0; - epause->tx_pause = (tp->tg3_flags & TG3_FLAG_TX_PAUSE) != 0; + + if (tp->link_config.active_flowctrl & TG3_FLOW_CTRL_RX) + epause->rx_pause = 1; + else + epause->rx_pause = 0; + + if (tp->link_config.active_flowctrl & TG3_FLOW_CTRL_TX) + epause->tx_pause = 1; + else + epause->tx_pause = 0; } static int tg3_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause) @@ -8590,13 +8592,13 @@ static int tg3_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam else tp->tg3_flags &= ~TG3_FLAG_PAUSE_AUTONEG; if (epause->rx_pause) - tp->tg3_flags |= TG3_FLAG_RX_PAUSE; + tp->link_config.flowctrl |= TG3_FLOW_CTRL_RX; else - tp->tg3_flags &= ~TG3_FLAG_RX_PAUSE; + tp->link_config.flowctrl &= ~TG3_FLOW_CTRL_RX; if (epause->tx_pause) - tp->tg3_flags |= TG3_FLAG_TX_PAUSE; + tp->link_config.flowctrl |= TG3_FLOW_CTRL_TX; else - tp->tg3_flags &= ~TG3_FLAG_TX_PAUSE; + tp->link_config.flowctrl &= ~TG3_FLOW_CTRL_TX; if (netif_running(dev)) { tg3_halt(tp, RESET_KIND_SHUTDOWN, 1); @@ -12631,6 +12633,7 @@ static int __devinit tg3_init_one(struct pci_dev *pdev, /* flow control autonegotiation is default behavior */ tp->tg3_flags |= TG3_FLAG_PAUSE_AUTONEG; + tp->link_config.flowctrl = TG3_FLOW_CTRL_TX | TG3_FLOW_CTRL_RX; tg3_init_coal(tp); diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h index da18fb22071..ac47c176fc0 100644 --- a/drivers/net/tg3.h +++ b/drivers/net/tg3.h @@ -2103,13 +2103,18 @@ struct tg3_link_config { u16 speed; u8 duplex; u8 autoneg; + u8 flowctrl; +#define TG3_FLOW_CTRL_TX 0x01 +#define TG3_FLOW_CTRL_RX 0x02 /* Describes what we actually have. */ - u16 active_speed; + u8 active_flowctrl; + u8 active_duplex; #define SPEED_INVALID 0xffff #define DUPLEX_INVALID 0xff #define AUTONEG_INVALID 0xff + u16 active_speed; /* When we go in and out of low power mode we need * to swap with this state. @@ -2337,8 +2342,6 @@ struct tg3 { #define TG3_FLAG_EEPROM_WRITE_PROT 0x00001000 #define TG3_FLAG_NVRAM 0x00002000 #define TG3_FLAG_NVRAM_BUFFERED 0x00004000 -#define TG3_FLAG_RX_PAUSE 0x00008000 -#define TG3_FLAG_TX_PAUSE 0x00010000 #define TG3_FLAG_PCIX_MODE 0x00020000 #define TG3_FLAG_PCI_HIGH_SPEED 0x00040000 #define TG3_FLAG_PCI_32BIT 0x00080000 -- 2.41.1