From 26964bb72afd0310c17750c002eebbf022db3b19 Mon Sep 17 00:00:00 2001 From: Yuval Mintz Date: Mon, 10 Sep 2012 05:51:08 +0000 Subject: [PATCH] bnx2x: use native EEE instead of auto-greeen This patch enables boards with 54618SE phys and a sufficiently new firmware to use native EEE instead of auto-greeen. Signed-off-by: Yuval Mintz Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller --- .../net/ethernet/broadcom/bnx2x/bnx2x_link.c | 105 +++++++++++------- .../net/ethernet/broadcom/bnx2x/bnx2x_link.h | 1 + .../net/ethernet/broadcom/bnx2x/bnx2x_reg.h | 13 ++- 3 files changed, 73 insertions(+), 46 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index 839ddd2519d..c660afdbdf5 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -1584,6 +1584,16 @@ static void bnx2x_umac_enable(struct link_params *params, REG_WR(bp, umac_base + UMAC_REG_COMMAND_CONFIG, val); udelay(50); + /* Configure UMAC for EEE */ + if (vars->eee_status & SHMEM_EEE_ADV_STATUS_MASK) { + DP(NETIF_MSG_LINK, "configured UMAC for EEE\n"); + REG_WR(bp, umac_base + UMAC_REG_UMAC_EEE_CTRL, + UMAC_UMAC_EEE_CTRL_REG_EEE_EN); + REG_WR(bp, umac_base + UMAC_REG_EEE_WAKE_TIMER, 0x11); + } else { + REG_WR(bp, umac_base + UMAC_REG_UMAC_EEE_CTRL, 0x0); + } + /* Set MAC address for source TX Pause/PFC frames (under SW reset) */ REG_WR(bp, umac_base + UMAC_REG_MAC_ADDR0, ((params->mac_addr[2] << 24) | @@ -4263,6 +4273,8 @@ static void bnx2x_warpcore_set_sgmii_speed(struct bnx2x_phy *phy, bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD, MDIO_WC_REG_RX66_CONTROL, val16 & ~(3<<13)); + bnx2x_warpcore_set_lpi_passthrough(phy, params); + if (always_autoneg || phy->req_line_speed == SPEED_AUTO_NEG) { /* SGMII Autoneg */ bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD, @@ -10792,28 +10804,52 @@ static int bnx2x_54618se_config_init(struct bnx2x_phy *phy, DP(NETIF_MSG_LINK, "Setting 10M force\n"); } - /* Check if we should turn on Auto-GrEEEn */ - bnx2x_cl22_read(bp, phy, MDIO_REG_GPHY_PHYID_LSB, &temp); - if (temp == MDIO_REG_GPHY_ID_54618SE) { - if (params->feature_config_flags & - FEATURE_CONFIG_AUTOGREEEN_ENABLED) { - temp = 6; - DP(NETIF_MSG_LINK, "Enabling Auto-GrEEEn\n"); + if ((phy->flags & FLAGS_EEE) && bnx2x_eee_has_cap(params)) { + int rc; + + bnx2x_cl22_write(bp, phy, MDIO_REG_GPHY_EXP_ACCESS, + MDIO_REG_GPHY_EXP_ACCESS_TOP | + MDIO_REG_GPHY_EXP_TOP_2K_BUF); + bnx2x_cl22_read(bp, phy, MDIO_REG_GPHY_EXP_ACCESS_GATE, &temp); + temp &= 0xfffe; + bnx2x_cl22_write(bp, phy, MDIO_REG_GPHY_EXP_ACCESS_GATE, temp); + + rc = bnx2x_eee_initial_config(params, vars, SHMEM_EEE_1G_ADV); + if (rc) { + DP(NETIF_MSG_LINK, "Failed to configure EEE timers\n"); + bnx2x_eee_disable(phy, params, vars); + } else if ((params->eee_mode & EEE_MODE_ADV_LPI) && + (phy->req_duplex == DUPLEX_FULL) && + (bnx2x_eee_calc_timer(params) || + !(params->eee_mode & EEE_MODE_ENABLE_LPI))) { + /* Need to advertise EEE only when requested, + * and either no LPI assertion was requested, + * or it was requested and a valid timer was set. + * Also notice full duplex is required for EEE. + */ + bnx2x_eee_advertise(phy, params, vars, + SHMEM_EEE_1G_ADV); } else { - temp = 0; - DP(NETIF_MSG_LINK, "Disabling Auto-GrEEEn\n"); + DP(NETIF_MSG_LINK, "Don't Advertise 1GBase-T EEE\n"); + bnx2x_eee_disable(phy, params, vars); + } + } else { + vars->eee_status &= ~SHMEM_EEE_1G_ADV << + SHMEM_EEE_SUPPORTED_SHIFT; + + if (phy->flags & FLAGS_EEE) { + /* Handle legacy auto-grEEEn */ + if (params->feature_config_flags & + FEATURE_CONFIG_AUTOGREEEN_ENABLED) { + temp = 6; + DP(NETIF_MSG_LINK, "Enabling Auto-GrEEEn\n"); + } else { + temp = 0; + DP(NETIF_MSG_LINK, "Don't Adv. EEE\n"); + } + bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, + MDIO_AN_REG_EEE_ADV, temp); } - bnx2x_cl22_write(bp, phy, - MDIO_REG_GPHY_CL45_ADDR_REG, MDIO_AN_DEVAD); - bnx2x_cl22_write(bp, phy, - MDIO_REG_GPHY_CL45_DATA_REG, - MDIO_REG_GPHY_EEE_ADV); - bnx2x_cl22_write(bp, phy, - MDIO_REG_GPHY_CL45_ADDR_REG, - (0x1 << 14) | MDIO_AN_DEVAD); - bnx2x_cl22_write(bp, phy, - MDIO_REG_GPHY_CL45_DATA_REG, - temp); } bnx2x_cl22_write(bp, phy, @@ -10960,29 +10996,6 @@ static u8 bnx2x_54618se_read_status(struct bnx2x_phy *phy, DP(NETIF_MSG_LINK, "BCM54618SE: link speed is %d\n", vars->line_speed); - /* Report whether EEE is resolved. */ - bnx2x_cl22_read(bp, phy, MDIO_REG_GPHY_PHYID_LSB, &val); - if (val == MDIO_REG_GPHY_ID_54618SE) { - if (vars->link_status & - LINK_STATUS_AUTO_NEGOTIATE_COMPLETE) - val = 0; - else { - bnx2x_cl22_write(bp, phy, - MDIO_REG_GPHY_CL45_ADDR_REG, - MDIO_AN_DEVAD); - bnx2x_cl22_write(bp, phy, - MDIO_REG_GPHY_CL45_DATA_REG, - MDIO_REG_GPHY_EEE_RESOLVED); - bnx2x_cl22_write(bp, phy, - MDIO_REG_GPHY_CL45_ADDR_REG, - (0x1 << 14) | MDIO_AN_DEVAD); - bnx2x_cl22_read(bp, phy, - MDIO_REG_GPHY_CL45_DATA_REG, - &val); - } - DP(NETIF_MSG_LINK, "EEE resolution: 0x%x\n", val); - } - bnx2x_ext_phy_resolve_fc(phy, params, vars); if (vars->link_status & LINK_STATUS_AUTO_NEGOTIATE_COMPLETE) { @@ -11012,6 +11025,10 @@ static u8 bnx2x_54618se_read_status(struct bnx2x_phy *phy, if (val & (1<<11)) vars->link_status |= LINK_STATUS_LINK_PARTNER_1000TFD_CAPABLE; + + if ((phy->flags & FLAGS_EEE) && + bnx2x_eee_has_cap(params)) + bnx2x_eee_an_resolve(phy, params, vars); } } return link_up; @@ -11925,6 +11942,8 @@ static int bnx2x_populate_ext_phy(struct bnx2x *bp, case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54616: case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE: *phy = phy_54618se; + if (phy_type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE) + phy->flags |= FLAGS_EEE; break; case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_SFX7101: *phy = phy_7101; diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h index 3967aa85fc0..360ecf9e073 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h @@ -155,6 +155,7 @@ struct bnx2x_phy { #define FLAGS_DUMMY_READ (1<<9) #define FLAGS_MDC_MDIO_WA_B0 (1<<10) #define FLAGS_TX_ERROR_CHECK (1<<12) +#define FLAGS_EEE (1<<13) /* preemphasis values for the rx side */ u16 rx_preemphasis[4]; diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h index d32293fcc81..1b1999d34c7 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h @@ -4949,6 +4949,10 @@ #define UMAC_COMMAND_CONFIG_REG_SW_RESET (0x1<<13) #define UMAC_COMMAND_CONFIG_REG_TX_ENA (0x1<<0) #define UMAC_REG_COMMAND_CONFIG 0x8 +/* [RW 16] This is the duration for which MAC must wait to go back to ACTIVE + * state from LPI state when it receives packet for transmission. The + * decrement unit is 1 micro-second. */ +#define UMAC_REG_EEE_WAKE_TIMER 0x6c /* [RW 32] Register Bit 0 refers to Bit 16 of the MAC address; Bit 1 refers * to bit 17 of the MAC address etc. */ #define UMAC_REG_MAC_ADDR0 0xc @@ -4958,6 +4962,8 @@ /* [RW 14] Defines a 14-Bit maximum frame length used by the MAC receive * logic to check frames. */ #define UMAC_REG_MAXFR 0x14 +#define UMAC_REG_UMAC_EEE_CTRL 0x64 +#define UMAC_UMAC_EEE_CTRL_REG_EEE_EN (0x1<<3) /* [RW 8] The event id for aggregated interrupt 0 */ #define USDM_REG_AGG_INT_EVENT_0 0xc4038 #define USDM_REG_AGG_INT_EVENT_1 0xc403c @@ -7161,10 +7167,11 @@ Theotherbitsarereservedandshouldbezero*/ #define MDIO_REG_GPHY_ID_54618SE 0x5cd5 #define MDIO_REG_GPHY_CL45_ADDR_REG 0xd #define MDIO_REG_GPHY_CL45_DATA_REG 0xe -#define MDIO_REG_GPHY_EEE_ADV 0x3c -#define MDIO_REG_GPHY_EEE_1G (0x1 << 2) -#define MDIO_REG_GPHY_EEE_100 (0x1 << 1) #define MDIO_REG_GPHY_EEE_RESOLVED 0x803e +#define MDIO_REG_GPHY_EXP_ACCESS_GATE 0x15 +#define MDIO_REG_GPHY_EXP_ACCESS 0x17 +#define MDIO_REG_GPHY_EXP_ACCESS_TOP 0xd00 +#define MDIO_REG_GPHY_EXP_TOP_2K_BUF 0x40 #define MDIO_REG_GPHY_AUX_STATUS 0x19 #define MDIO_REG_INTR_STATUS 0x1a #define MDIO_REG_INTR_MASK 0x1b -- 2.34.1