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Message-ID: <1338878342-24586-3-git-send-email-yuvalmin@broadcom.com>
Date: Tue, 5 Jun 2012 09:39:01 +0300
From: "Yuval Mintz" <yuvalmin@...adcom.com>
To: davem@...emloft.net, netdev@...r.kernel.org
cc: eilong@...adcom.com, peppe.cavallaro@...com,
"Yuval Mintz" <yuvalmin@...adcom.com>
Subject: [net-next PATCH 2/3] bnx2x: Added EEE support
This patch adds energy efficient energy support (802.3az) to bnx2x
boards with 84833 phys (and sufficiently new BC and external FW).
Signed-off-by: Yuval Mintz <yuvalmin@...adcom.com>
Signed-off-by: Eilon Greenstein <eilong@...adcom.com>
---
drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h | 61 ++++-
drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c | 321 ++++++++++++++++++++-
drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h | 26 ++
drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 23 ++-
drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h | 123 ++++++++
drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c | 4 +
drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h | 2 +
7 files changed, 550 insertions(+), 10 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
index a440a8b..c61aa37 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
@@ -1067,8 +1067,18 @@ struct port_feat_cfg { /* port 0: 0x454 port 1: 0x4c8 */
uses the same defines as link_config */
u32 mfw_wol_link_cfg2; /* 0x480 */
- u32 Reserved2[17]; /* 0x484 */
+ /* EEE power saving mode */
+ u32 eee_power_mode; /* 0x484 */
+ #define PORT_FEAT_CFG_EEE_POWER_MODE_MASK 0x000000FF
+ #define PORT_FEAT_CFG_EEE_POWER_MODE_SHIFT 0
+ #define PORT_FEAT_CFG_EEE_POWER_MODE_DISABLED 0x00000000
+ #define PORT_FEAT_CFG_EEE_POWER_MODE_BALANCED 0x00000001
+ #define PORT_FEAT_CFG_EEE_POWER_MODE_AGGRESSIVE 0x00000002
+ #define PORT_FEAT_CFG_EEE_POWER_MODE_LOW_LATENCY 0x00000003
+
+
+ u32 Reserved2[16]; /* 0x488 */
};
@@ -1255,6 +1265,8 @@ struct drv_func_mb {
#define DRV_MSG_CODE_DRV_INFO_ACK 0xd8000000
#define DRV_MSG_CODE_DRV_INFO_NACK 0xd9000000
+ #define DRV_MSG_CODE_EEE_RESULTS_ACK 0xda000000
+
#define DRV_MSG_CODE_SET_MF_BW 0xe0000000
#define REQ_BC_VER_4_SET_MF_BW 0x00060202
#define DRV_MSG_CODE_SET_MF_BW_ACK 0xe1000000
@@ -1320,6 +1332,8 @@ struct drv_func_mb {
#define FW_MSG_CODE_DRV_INFO_ACK 0xd8100000
#define FW_MSG_CODE_DRV_INFO_NACK 0xd9100000
+ #define FW_MSG_CODE_EEE_RESULS_ACK 0xda100000
+
#define FW_MSG_CODE_SET_MF_BW_SENT 0xe0000000
#define FW_MSG_CODE_SET_MF_BW_DONE 0xe1000000
@@ -1383,6 +1397,8 @@ struct drv_func_mb {
#define DRV_STATUS_DRV_INFO_REQ 0x04000000
+ #define DRV_STATUS_EEE_NEGOTIATION_RESULTS 0x08000000
+
u32 virt_mac_upper;
#define VIRT_MAC_SIGN_MASK 0xffff0000
#define VIRT_MAC_SIGNATURE 0x564d0000
@@ -1613,6 +1629,11 @@ struct fw_flr_mb {
struct fw_flr_ack ack;
};
+struct eee_remote_vals {
+ u32 tx_tw;
+ u32 rx_tw;
+};
+
/**** SUPPORT FOR SHMEM ARRRAYS ***
* The SHMEM HSI is aligned on 32 bit boundaries which makes it difficult to
* define arrays with storage types smaller then unsigned dwords.
@@ -2053,6 +2074,41 @@ struct shmem2_region {
#define DRV_INFO_CONTROL_OP_CODE_MASK 0x0000ff00
#define DRV_INFO_CONTROL_OP_CODE_SHIFT 8
u32 ibft_host_addr; /* initialized by option ROM */
+ struct eee_remote_vals eee_remote_vals[PORT_MAX];
+ u32 reserved[E2_FUNC_MAX];
+
+
+ /* the status of EEE auto-negotiation
+ * bits 15:0 the configured tx-lpi entry timer value. Depends on bit 31.
+ * bits 19:16 the supported modes for EEE.
+ * bits 23:20 the speeds advertised for EEE.
+ * bits 27:24 the speeds the Link partner advertised for EEE.
+ * The supported/adv. modes in bits 27:19 originate from the
+ * SHMEM_EEE_XXX_ADV definitions (where XXX is replaced by speed).
+ * bit 28 when 1'b1 EEE was requested.
+ * bit 29 when 1'b1 tx lpi was requested.
+ * bit 30 when 1'b1 EEE was negotiated. Tx lpi will be asserted iff
+ * 30:29 are 2'b11.
+ * bit 31 when 1'b0 bits 15:0 contain a PORT_FEAT_CFG_EEE_ define as
+ * value. When 1'b1 those bits contains a value times 16 microseconds.
+ */
+ u32 eee_status[PORT_MAX];
+ #define SHMEM_EEE_TIMER_MASK 0x0000ffff
+ #define SHMEM_EEE_SUPPORTED_MASK 0x000f0000
+ #define SHMEM_EEE_SUPPORTED_SHIFT 16
+ #define SHMEM_EEE_ADV_STATUS_MASK 0x00f00000
+ #define SHMEM_EEE_100M_ADV (1<<0)
+ #define SHMEM_EEE_1G_ADV (1<<1)
+ #define SHMEM_EEE_10G_ADV (1<<2)
+ #define SHMEM_EEE_ADV_STATUS_SHIFT 20
+ #define SHMEM_EEE_LP_ADV_STATUS_MASK 0x0f000000
+ #define SHMEM_EEE_LP_ADV_STATUS_SHIFT 24
+ #define SHMEM_EEE_REQUESTED_BIT 0x10000000
+ #define SHMEM_EEE_LPI_REQUESTED_BIT 0x20000000
+ #define SHMEM_EEE_ACTIVE_BIT 0x40000000
+ #define SHMEM_EEE_TIME_OUTPUT_BIT 0x80000000
+
+ u32 sizeof_port_stats;
};
@@ -2599,6 +2655,9 @@ struct host_port_stats {
u32 pfc_frames_tx_lo;
u32 pfc_frames_rx_hi;
u32 pfc_frames_rx_lo;
+
+ u32 eee_lpi_count_hi;
+ u32 eee_lpi_count_lo;
};
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
index a3fb721..80ee164 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
@@ -1305,6 +1305,94 @@ int bnx2x_ets_strict(const struct link_params *params, const u8 strict_cos)
return 0;
}
+
+/******************************************************************/
+/* EEE section */
+/******************************************************************/
+static u8 bnx2x_eee_has_cap(struct link_params *params)
+{
+ struct bnx2x *bp = params->bp;
+
+ if (REG_RD(bp, params->shmem2_base) <=
+ offsetof(struct shmem2_region, eee_status[params->port]))
+ return 0;
+
+ return 1;
+}
+
+static int bnx2x_eee_nvram_to_time(u32 nvram_mode, u32 *idle_timer)
+{
+ switch (nvram_mode) {
+ case PORT_FEAT_CFG_EEE_POWER_MODE_BALANCED:
+ *idle_timer = EEE_MODE_NVRAM_BALANCED_TIME;
+ break;
+ case PORT_FEAT_CFG_EEE_POWER_MODE_AGGRESSIVE:
+ *idle_timer = EEE_MODE_NVRAM_AGGRESSIVE_TIME;
+ break;
+ case PORT_FEAT_CFG_EEE_POWER_MODE_LOW_LATENCY:
+ *idle_timer = EEE_MODE_NVRAM_LATENCY_TIME;
+ break;
+ default:
+ *idle_timer = 0;
+ break;
+ }
+
+ return 0;
+}
+
+static int bnx2x_eee_time_to_nvram(u32 idle_timer, u32 *nvram_mode)
+{
+ switch (idle_timer) {
+ case EEE_MODE_NVRAM_BALANCED_TIME:
+ *nvram_mode = PORT_FEAT_CFG_EEE_POWER_MODE_BALANCED;
+ break;
+ case EEE_MODE_NVRAM_AGGRESSIVE_TIME:
+ *nvram_mode = PORT_FEAT_CFG_EEE_POWER_MODE_AGGRESSIVE;
+ break;
+ case EEE_MODE_NVRAM_LATENCY_TIME:
+ *nvram_mode = PORT_FEAT_CFG_EEE_POWER_MODE_LOW_LATENCY;
+ break;
+ default:
+ *nvram_mode = PORT_FEAT_CFG_EEE_POWER_MODE_DISABLED;
+ break;
+ }
+
+ return 0;
+}
+
+static u32 bnx2x_eee_calc_timer(struct link_params *params)
+{
+ u32 eee_mode, eee_idle;
+ struct bnx2x *bp = params->bp;
+
+ if (params->eee_mode & EEE_MODE_OVERRIDE_NVRAM) {
+ if (params->eee_mode & EEE_MODE_OUTPUT_TIME) {
+ /* time value in eee_mode --> used directly*/
+ eee_idle = params->eee_mode & EEE_MODE_TIMER_MASK;
+ } else {
+ /* hsi value in eee_mode --> time */
+ if (bnx2x_eee_nvram_to_time(params->eee_mode &
+ EEE_MODE_NVRAM_MASK,
+ &eee_idle))
+ return 0;
+ }
+ } else {
+ /* hsi values in nvram --> time*/
+ eee_mode = ((REG_RD(bp, params->shmem_base +
+ offsetof(struct shmem_region, dev_info.
+ port_feature_config[params->port].
+ eee_power_mode)) &
+ PORT_FEAT_CFG_EEE_POWER_MODE_MASK) >>
+ PORT_FEAT_CFG_EEE_POWER_MODE_SHIFT);
+
+ if (bnx2x_eee_nvram_to_time(eee_mode, &eee_idle))
+ return 0;
+ }
+
+ return eee_idle;
+}
+
+
/******************************************************************/
/* PFC section */
/******************************************************************/
@@ -1729,6 +1817,14 @@ static int bnx2x_xmac_enable(struct link_params *params,
/* update PFC */
bnx2x_update_pfc_xmac(params, vars, 0);
+ if (vars->eee_status & SHMEM_EEE_ADV_STATUS_MASK) {
+ DP(NETIF_MSG_LINK, "Setting XMAC for EEE\n");
+ REG_WR(bp, xmac_base + XMAC_REG_EEE_TIMERS_HI, 0x1380008);
+ REG_WR(bp, xmac_base + XMAC_REG_EEE_CTRL, 0x1);
+ } else {
+ REG_WR(bp, xmac_base + XMAC_REG_EEE_CTRL, 0x0);
+ }
+
/* Enable TX and RX */
val = XMAC_CTRL_REG_TX_EN | XMAC_CTRL_REG_RX_EN;
@@ -2439,6 +2535,16 @@ static void bnx2x_update_mng(struct link_params *params, u32 link_status)
port_mb[params->port].link_status), link_status);
}
+static void bnx2x_update_mng_eee(struct link_params *params, u32 eee_status)
+{
+ struct bnx2x *bp = params->bp;
+
+ if (bnx2x_eee_has_cap(params))
+ REG_WR(bp, params->shmem2_base +
+ offsetof(struct shmem2_region,
+ eee_status[params->port]), eee_status);
+}
+
static void bnx2x_update_pfc_nig(struct link_params *params,
struct link_vars *vars,
struct bnx2x_nig_brb_pfc_port_params *nig_params)
@@ -3950,6 +4056,20 @@ static void bnx2x_warpcore_set_10G_XFI(struct bnx2x_phy *phy,
bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
MDIO_WC_REG_DIGITAL4_MISC3, val | 0x8080);
+ /* Enable LPI pass through */
+ if ((params->eee_mode & EEE_MODE_ADV_LPI) &&
+ (phy->flags & FLAGS_EEE_10GBT) &&
+ (!(params->eee_mode & EEE_MODE_ENABLE_LPI) ||
+ bnx2x_eee_calc_timer(params)) &&
+ (params->req_duplex[bnx2x_phy_selection(params)] == DUPLEX_FULL)) {
+ DP(NETIF_MSG_LINK, "Configure WC for LPI pass through\n");
+ bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
+ MDIO_WC_REG_EEE_COMBO_CONTROL0,
+ 0x7c);
+ bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
+ MDIO_WC_REG_DIGITAL4_MISC5, 0xc000);
+ }
+
/* 10G XFI Full Duplex */
bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x100);
@@ -6462,6 +6582,15 @@ static int bnx2x_update_link_down(struct link_params *params,
(MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port));
}
if (CHIP_IS_E3(bp)) {
+ REG_WR(bp, MISC_REG_CPMU_LP_FW_ENABLE_P0 + (params->port << 2),
+ 0);
+ REG_WR(bp, MISC_REG_CPMU_LP_DR_ENABLE, 0);
+ REG_WR(bp, MISC_REG_CPMU_LP_MASK_ENT_P0 + (params->port << 2),
+ 0);
+ vars->eee_status &= ~(SHMEM_EEE_LP_ADV_STATUS_MASK |
+ SHMEM_EEE_ACTIVE_BIT);
+
+ bnx2x_update_mng_eee(params, vars->eee_status);
bnx2x_xmac_disable(params);
bnx2x_umac_disable(params);
}
@@ -6501,6 +6630,16 @@ static int bnx2x_update_link_up(struct link_params *params,
bnx2x_umac_enable(params, vars, 0);
bnx2x_set_led(params, vars,
LED_MODE_OPER, vars->line_speed);
+
+ if ((vars->eee_status & SHMEM_EEE_ACTIVE_BIT) &&
+ (vars->eee_status & SHMEM_EEE_LPI_REQUESTED_BIT)) {
+ DP(NETIF_MSG_LINK, "Enabling LPI assertion\n");
+ REG_WR(bp, MISC_REG_CPMU_LP_FW_ENABLE_P0 +
+ (params->port << 2), 1);
+ REG_WR(bp, MISC_REG_CPMU_LP_DR_ENABLE, 1);
+ REG_WR(bp, MISC_REG_CPMU_LP_MASK_ENT_P0 +
+ (params->port << 2), 0xfc20);
+ }
}
if ((CHIP_IS_E1x(bp) ||
CHIP_IS_E2(bp))) {
@@ -6538,7 +6677,7 @@ static int bnx2x_update_link_up(struct link_params *params,
/* update shared memory */
bnx2x_update_mng(params, vars->link_status);
-
+ bnx2x_update_mng_eee(params, vars->eee_status);
/* Check remote fault */
for (phy_idx = INT_PHY; phy_idx < MAX_PHYS; phy_idx++) {
if (params->phy[phy_idx].flags & FLAGS_TX_ERROR_CHECK) {
@@ -6582,6 +6721,8 @@ int bnx2x_link_update(struct link_params *params, struct link_vars *vars)
phy_vars[phy_index].phy_link_up = 0;
phy_vars[phy_index].link_up = 0;
phy_vars[phy_index].fault_detected = 0;
+ /* different consideration, since vars holds inner state */
+ phy_vars[phy_index].eee_status = vars->eee_status;
}
if (USES_WARPCORE(bp))
@@ -6711,6 +6852,9 @@ int bnx2x_link_update(struct link_params *params, struct link_vars *vars)
vars->link_status |= LINK_STATUS_SERDES_LINK;
else
vars->link_status &= ~LINK_STATUS_SERDES_LINK;
+
+ vars->eee_status = phy_vars[active_external_phy].eee_status;
+
DP(NETIF_MSG_LINK, "Active external phy selected: %x\n",
active_external_phy);
}
@@ -9579,9 +9723,9 @@ static int bnx2x_8481_config_init(struct bnx2x_phy *phy,
static int bnx2x_84833_cmd_hdlr(struct bnx2x_phy *phy,
struct link_params *params,
u16 fw_cmd,
- u16 cmd_args[])
+ u16 cmd_args[], int argc)
{
- u32 idx;
+ int idx;
u16 val;
struct bnx2x *bp = params->bp;
/* Write CMD_OPEN_OVERRIDE to STATUS reg */
@@ -9601,7 +9745,7 @@ static int bnx2x_84833_cmd_hdlr(struct bnx2x_phy *phy,
}
/* Prepare argument(s) and issue command */
- for (idx = 0; idx < PHY84833_CMDHDLR_MAX_ARGS; idx++) {
+ for (idx = 0; idx < argc; idx++) {
bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
MDIO_84833_CMD_HDLR_DATA1 + idx,
cmd_args[idx]);
@@ -9622,7 +9766,7 @@ static int bnx2x_84833_cmd_hdlr(struct bnx2x_phy *phy,
return -EINVAL;
}
/* Gather returning data */
- for (idx = 0; idx < PHY84833_CMDHDLR_MAX_ARGS; idx++) {
+ for (idx = 0; idx < argc; idx++) {
bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
MDIO_84833_CMD_HDLR_DATA1 + idx,
&cmd_args[idx]);
@@ -9656,7 +9800,7 @@ static int bnx2x_84833_pair_swap_cfg(struct bnx2x_phy *phy,
data[1] = (u16)pair_swap;
status = bnx2x_84833_cmd_hdlr(phy, params,
- PHY84833_CMD_SET_PAIR_SWAP, data);
+ PHY84833_CMD_SET_PAIR_SWAP, data, PHY84833_CMDHDLR_MAX_ARGS);
if (status == 0)
DP(NETIF_MSG_LINK, "Pairswap OK, val=0x%x\n", data[1]);
@@ -9734,6 +9878,93 @@ static int bnx2x_84833_hw_reset_phy(struct bnx2x_phy *phy,
return 0;
}
+static int bnx2x_8483x_eee_timers(struct link_params *params,
+ struct link_vars *vars)
+{
+ u32 eee_idle = 0, eee_mode;
+ struct bnx2x *bp = params->bp;
+
+ eee_idle = bnx2x_eee_calc_timer(params);
+
+ if (eee_idle) {
+ REG_WR(bp, MISC_REG_CPMU_LP_IDLE_THR_P0 + (params->port << 2),
+ eee_idle);
+ } else if ((params->eee_mode & EEE_MODE_ENABLE_LPI) &&
+ (params->eee_mode & EEE_MODE_OVERRIDE_NVRAM) &&
+ (params->eee_mode & EEE_MODE_OUTPUT_TIME)) {
+ DP(NETIF_MSG_LINK, "Error: Tx LPI is enabled with timer 0\n");
+ return -EINVAL;
+ }
+
+ vars->eee_status &= ~(SHMEM_EEE_TIMER_MASK | SHMEM_EEE_TIME_OUTPUT_BIT);
+ if (params->eee_mode & EEE_MODE_OUTPUT_TIME) {
+ vars->eee_status |= (eee_idle & SHMEM_EEE_TIMER_MASK) |
+ SHMEM_EEE_TIME_OUTPUT_BIT;
+ } else {
+ if (bnx2x_eee_time_to_nvram(eee_idle, &eee_mode))
+ return -EINVAL;
+ vars->eee_status |= eee_mode;
+ }
+
+ return 0;
+}
+
+static int bnx2x_8483x_disable_eee(struct bnx2x_phy *phy,
+ struct link_params *params,
+ struct link_vars *vars)
+{
+ int rc;
+ struct bnx2x *bp = params->bp;
+ u16 cmd_args = 0;
+
+ DP(NETIF_MSG_LINK, "Don't Advertise 10GBase-T EEE\n");
+
+ /* Make Certain LPI is disabled */
+ REG_WR(bp, MISC_REG_CPMU_LP_FW_ENABLE_P0 + (params->port << 2), 0);
+ REG_WR(bp, MISC_REG_CPMU_LP_DR_ENABLE, 0);
+
+ /* Prevent Phy from working in EEE and advertising it */
+ rc = bnx2x_84833_cmd_hdlr(phy, params,
+ PHY84833_CMD_SET_EEE_MODE, &cmd_args, 1);
+ if (rc != 0) {
+ DP(NETIF_MSG_LINK, "EEE disable failed.\n");
+ return rc;
+ }
+
+ bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_EEE_ADV, 0);
+ vars->eee_status &= ~SHMEM_EEE_ADV_STATUS_MASK;
+
+ return 0;
+}
+
+static int bnx2x_8483x_enable_eee(struct bnx2x_phy *phy,
+ struct link_params *params,
+ struct link_vars *vars)
+{
+ int rc;
+ struct bnx2x *bp = params->bp;
+ u16 cmd_args = 1;
+
+ DP(NETIF_MSG_LINK, "Advertise 10GBase-T EEE\n");
+
+ rc = bnx2x_84833_cmd_hdlr(phy, params,
+ PHY84833_CMD_SET_EEE_MODE, &cmd_args, 1);
+ if (rc != 0) {
+ DP(NETIF_MSG_LINK, "EEE enable failed.\n");
+ return rc;
+ }
+
+ bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_EEE_ADV, 0x8);
+
+ /* Mask events preventing LPI generation */
+ REG_WR(bp, MISC_REG_CPMU_LP_MASK_EXT_P0 + (params->port << 2), 0xfc20);
+
+ vars->eee_status &= ~SHMEM_EEE_ADV_STATUS_MASK;
+ vars->eee_status |= (SHMEM_EEE_10G_ADV << SHMEM_EEE_ADV_STATUS_SHIFT);
+
+ return 0;
+}
+
#define PHY84833_CONSTANT_LATENCY 1193
static int bnx2x_848x3_config_init(struct bnx2x_phy *phy,
struct link_params *params,
@@ -9833,7 +10064,8 @@ static int bnx2x_848x3_config_init(struct bnx2x_phy *phy,
cmd_args[2] = PHY84833_CONSTANT_LATENCY + 1;
cmd_args[3] = PHY84833_CONSTANT_LATENCY;
rc = bnx2x_84833_cmd_hdlr(phy, params,
- PHY84833_CMD_SET_EEE_MODE, cmd_args);
+ PHY84833_CMD_SET_EEE_MODE, cmd_args,
+ PHY84833_CMDHDLR_MAX_ARGS);
if (rc != 0)
DP(NETIF_MSG_LINK, "Cfg AutogrEEEn failed.\n");
}
@@ -9858,6 +10090,48 @@ static int bnx2x_848x3_config_init(struct bnx2x_phy *phy,
MDIO_CTL_REG_84823_USER_CTRL_REG, val);
}
+ bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
+ MDIO_84833_TOP_CFG_FW_REV, &val);
+
+ /* Configure EEE support */
+ if ((val >= MDIO_84833_TOP_CFG_FW_EEE) && bnx2x_eee_has_cap(params)) {
+ phy->flags |= FLAGS_EEE_10GBT;
+ vars->eee_status |= SHMEM_EEE_10G_ADV <<
+ SHMEM_EEE_SUPPORTED_SHIFT;
+ /* Propogate params' bits --> vars (for migration exposure) */
+ if (params->eee_mode & EEE_MODE_ENABLE_LPI)
+ vars->eee_status |= SHMEM_EEE_LPI_REQUESTED_BIT;
+ else
+ vars->eee_status &= ~SHMEM_EEE_LPI_REQUESTED_BIT;
+
+ if (params->eee_mode & EEE_MODE_ADV_LPI)
+ vars->eee_status |= SHMEM_EEE_REQUESTED_BIT;
+ else
+ vars->eee_status &= ~SHMEM_EEE_REQUESTED_BIT;
+
+ rc = bnx2x_8483x_eee_timers(params, vars);
+ if (rc != 0) {
+ DP(NETIF_MSG_LINK, "Failed to configure EEE timers\n");
+ bnx2x_8483x_disable_eee(phy, params, vars);
+ return rc;
+ }
+
+ if ((params->req_duplex[actual_phy_selection] == DUPLEX_FULL) &&
+ (params->eee_mode & EEE_MODE_ADV_LPI) &&
+ (bnx2x_eee_calc_timer(params) ||
+ !(params->eee_mode & EEE_MODE_ENABLE_LPI)))
+ rc = bnx2x_8483x_enable_eee(phy, params, vars);
+ else
+ rc = bnx2x_8483x_disable_eee(phy, params, vars);
+ if (rc != 0) {
+ DP(NETIF_MSG_LINK, "Failed to set EEE advertisment\n");
+ return rc;
+ }
+ } else {
+ phy->flags &= ~FLAGS_EEE_10GBT;
+ vars->eee_status &= ~SHMEM_EEE_SUPPORTED_MASK;
+ }
+
if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) {
/* Bring PHY out of super isolate mode as the final step. */
bnx2x_cl45_read(bp, phy,
@@ -9989,6 +10263,31 @@ static u8 bnx2x_848xx_read_status(struct bnx2x_phy *phy,
if (val & (1<<11))
vars->link_status |=
LINK_STATUS_LINK_PARTNER_10GXFD_CAPABLE;
+
+ /* Determine if EEE was negotiated */
+ if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) {
+ u32 eee_shmem = 0;
+
+ bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
+ MDIO_AN_REG_EEE_ADV, &val1);
+ bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD,
+ MDIO_AN_REG_LP_EEE_ADV, &val2);
+ if ((val1 & val2) & 0x8) {
+ DP(NETIF_MSG_LINK, "EEE negotiated\n");
+ vars->eee_status |= SHMEM_EEE_ACTIVE_BIT;
+ }
+
+ if (val2 & 0x12)
+ eee_shmem |= SHMEM_EEE_100M_ADV;
+ if (val2 & 0x4)
+ eee_shmem |= SHMEM_EEE_1G_ADV;
+ if (val2 & 0x68)
+ eee_shmem |= SHMEM_EEE_10G_ADV;
+
+ vars->eee_status &= ~SHMEM_EEE_LP_ADV_STATUS_MASK;
+ vars->eee_status |= (eee_shmem <<
+ SHMEM_EEE_LP_ADV_STATUS_SHIFT);
+ }
}
return link_up;
@@ -11243,7 +11542,8 @@ static struct bnx2x_phy phy_84833 = {
.def_md_devad = 0,
.flags = (FLAGS_FAN_FAILURE_DET_REQ |
FLAGS_REARM_LATCH_SIGNAL |
- FLAGS_TX_ERROR_CHECK),
+ FLAGS_TX_ERROR_CHECK |
+ FLAGS_EEE_10GBT),
.rx_preemphasis = {0xffff, 0xffff, 0xffff, 0xffff},
.tx_preemphasis = {0xffff, 0xffff, 0xffff, 0xffff},
.mdio_ctrl = 0,
@@ -12011,6 +12311,8 @@ int bnx2x_phy_init(struct link_params *params, struct link_vars *vars)
break;
}
bnx2x_update_mng(params, vars->link_status);
+
+ bnx2x_update_mng_eee(params, vars->eee_status);
return 0;
}
@@ -12023,6 +12325,9 @@ int bnx2x_link_reset(struct link_params *params, struct link_vars *vars,
/* disable attentions */
vars->link_status = 0;
bnx2x_update_mng(params, vars->link_status);
+ vars->eee_status &= ~(SHMEM_EEE_LP_ADV_STATUS_MASK |
+ SHMEM_EEE_ACTIVE_BIT);
+ bnx2x_update_mng_eee(params, vars->eee_status);
bnx2x_bits_dis(bp, NIG_REG_MASK_INTERRUPT_PORT0 + port*4,
(NIG_MASK_XGXS0_LINK_STATUS |
NIG_MASK_XGXS0_LINK10G |
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h
index ea4371f..e920800 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h
@@ -149,6 +149,7 @@ 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_10GBT (1<<13)
/* preemphasis values for the rx side */
u16 rx_preemphasis[4];
@@ -265,6 +266,30 @@ struct link_params {
u8 num_phys;
u8 rsrv;
+
+ /* Used to configure the EEE Tx LPI timer, has several modes of
+ * operation, according to bits 29:28 -
+ * 2'b00: Timer will be configured by nvram, output will be the value
+ * from nvram.
+ * 2'b01: Timer will be configured by nvram, output will be in
+ * microseconds.
+ * 2'b10: bits 1:0 contain an nvram value which will be used instead
+ * of the one located in the nvram. Output will be that value.
+ * 2'b11: bits 19:0 contain the idle timer in microseconds; output
+ * will be in microseconds.
+ * Bits 31:30 should be 2'b11 in order for EEE to be enabled.
+ */
+ u32 eee_mode;
+#define EEE_MODE_NVRAM_BALANCED_TIME (0xa00)
+#define EEE_MODE_NVRAM_AGGRESSIVE_TIME (0x100)
+#define EEE_MODE_NVRAM_LATENCY_TIME (0x6000)
+#define EEE_MODE_NVRAM_MASK (0x3)
+#define EEE_MODE_TIMER_MASK (0xfffff)
+#define EEE_MODE_OUTPUT_TIME (1<<28)
+#define EEE_MODE_OVERRIDE_NVRAM (1<<29)
+#define EEE_MODE_ENABLE_LPI (1<<30)
+#define EEE_MODE_ADV_LPI (1<<31)
+
u16 hw_led_mode; /* part of the hw_config read from the shmem */
u32 multi_phy_config;
@@ -301,6 +326,7 @@ struct link_vars {
/* The same definitions as the shmem parameter */
u32 link_status;
+ u32 eee_status;
u8 fault_detected;
u8 rsrv1;
u16 periodic_flags;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index f755a66..a622bb7 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -3176,6 +3176,12 @@ static void bnx2x_set_mf_bw(struct bnx2x *bp)
bnx2x_fw_command(bp, DRV_MSG_CODE_SET_MF_BW_ACK, 0);
}
+static void bnx2x_handle_eee_event(struct bnx2x *bp)
+{
+ DP(BNX2X_MSG_MCP, "EEE - LLDP event\n");
+ bnx2x_fw_command(bp, DRV_MSG_CODE_EEE_RESULTS_ACK, 0);
+}
+
static void bnx2x_handle_drv_info_req(struct bnx2x *bp)
{
enum drv_info_opcode op_code;
@@ -3742,6 +3748,8 @@ static void bnx2x_attn_int_deasserted3(struct bnx2x *bp, u32 attn)
if (val & DRV_STATUS_AFEX_EVENT_MASK)
bnx2x_handle_afex_cmd(bp,
val & DRV_STATUS_AFEX_EVENT_MASK);
+ if (val & DRV_STATUS_EEE_NEGOTIATION_RESULTS)
+ bnx2x_handle_eee_event(bp);
if (bp->link_vars.periodic_flags &
PERIODIC_FLAGS_LINK_EVENT) {
/* sync with link */
@@ -10082,7 +10090,7 @@ static void __devinit bnx2x_get_port_hwinfo(struct bnx2x *bp)
{
int port = BP_PORT(bp);
u32 config;
- u32 ext_phy_type, ext_phy_config;
+ u32 ext_phy_type, ext_phy_config, eee_mode;
bp->link_params.bp = bp;
bp->link_params.port = port;
@@ -10149,6 +10157,19 @@ static void __devinit bnx2x_get_port_hwinfo(struct bnx2x *bp)
bp->port.need_hw_lock = bnx2x_hw_lock_required(bp,
bp->common.shmem_base,
bp->common.shmem2_base);
+
+ /* Configure link feature according to nvram value */
+ eee_mode = (((SHMEM_RD(bp, dev_info.
+ port_feature_config[port].eee_power_mode)) &
+ PORT_FEAT_CFG_EEE_POWER_MODE_MASK) >>
+ PORT_FEAT_CFG_EEE_POWER_MODE_SHIFT);
+ if (eee_mode != PORT_FEAT_CFG_EEE_POWER_MODE_DISABLED) {
+ bp->link_params.eee_mode = EEE_MODE_ADV_LPI |
+ EEE_MODE_ENABLE_LPI |
+ EEE_MODE_OUTPUT_TIME;
+ } else {
+ bp->link_params.eee_mode = 0;
+ }
}
void bnx2x_get_iscsi_info(struct bnx2x *bp)
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h
index bbd3874..bfef98f 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h
@@ -1488,6 +1488,121 @@
* 2:1 - otp_misc_do[51:50]; 0 - otp_misc_do[1]. */
#define MISC_REG_CHIP_TYPE 0xac60
#define MISC_REG_CHIP_TYPE_57811_MASK (1<<1)
+#define MISC_REG_CPMU_LP_DR_ENABLE 0xa858
+/* [RW 1] FW EEE LPI Enable. When 1 indicates that EEE LPI mode is enabled
+ * by FW. When 0 indicates that the EEE LPI mode is disabled by FW. Clk
+ * 25MHz. Reset on hard reset. */
+#define MISC_REG_CPMU_LP_FW_ENABLE_P0 0xa84c
+/* [RW 32] EEE LPI Idle Threshold. The threshold value for the idle EEE LPI
+ * counter. Timer tick is 1 us. Clock 25MHz. Reset on hard reset. */
+#define MISC_REG_CPMU_LP_IDLE_THR_P0 0xa8a0
+/* [RW 18] LPI entry events mask. [0] - Vmain SM Mask. When 1 indicates that
+ * the Vmain SM end state is disabled. When 0 indicates that the Vmain SM
+ * end state is enabled. [1] - FW Queues Empty Mask. When 1 indicates that
+ * the FW command that all Queues are empty is disabled. When 0 indicates
+ * that the FW command that all Queues are empty is enabled. [2] - FW Early
+ * Exit Mask / Reserved (Entry mask). When 1 indicates that the FW Early
+ * Exit command is disabled. When 0 indicates that the FW Early Exit command
+ * is enabled. This bit applicable only in the EXIT Events Mask registers.
+ * [3] - PBF Request Mask. When 1 indicates that the PBF Request indication
+ * is disabled. When 0 indicates that the PBF Request indication is enabled.
+ * [4] - Tx Request Mask. When =1 indicates that the Tx other Than PBF
+ * Request indication is disabled. When 0 indicates that the Tx Other Than
+ * PBF Request indication is enabled. [5] - Rx EEE LPI Status Mask. When 1
+ * indicates that the RX EEE LPI Status indication is disabled. When 0
+ * indicates that the RX EEE LPI Status indication is enabled. In the EXIT
+ * Events Masks registers; this bit masks the falling edge detect of the LPI
+ * Status (Rx LPI is on - off). [6] - Tx Pause Mask. When 1 indicates that
+ * the Tx Pause indication is disabled. When 0 indicates that the Tx Pause
+ * indication is enabled. [7] - BRB1 Empty Mask. When 1 indicates that the
+ * BRB1 EMPTY indication is disabled. When 0 indicates that the BRB1 EMPTY
+ * indication is enabled. [8] - QM Idle Mask. When 1 indicates that the QM
+ * IDLE indication is disabled. When 0 indicates that the QM IDLE indication
+ * is enabled. (One bit for both VOQ0 and VOQ1). [9] - QM LB Idle Mask. When
+ * 1 indicates that the QM IDLE indication for LOOPBACK is disabled. When 0
+ * indicates that the QM IDLE indication for LOOPBACK is enabled. [10] - L1
+ * Status Mask. When 1 indicates that the L1 Status indication from the PCIE
+ * CORE is disabled. When 0 indicates that the RX EEE LPI Status indication
+ * from the PCIE CORE is enabled. In the EXIT Events Masks registers; this
+ * bit masks the falling edge detect of the L1 status (L1 is on - off). [11]
+ * - P0 E0 EEE EEE LPI REQ Mask. When =1 indicates that the P0 E0 EEE EEE
+ * LPI REQ indication is disabled. When =0 indicates that the P0 E0 EEE LPI
+ * REQ indication is enabled. [12] - P1 E0 EEE LPI REQ Mask. When =1
+ * indicates that the P0 EEE LPI REQ indication is disabled. When =0
+ * indicates that the P0 EEE LPI REQ indication is enabled. [13] - P0 E1 EEE
+ * LPI REQ Mask. When =1 indicates that the P0 EEE LPI REQ indication is
+ * disabled. When =0 indicates that the P0 EEE LPI REQ indication is
+ * enabled. [14] - P1 E1 EEE LPI REQ Mask. When =1 indicates that the P0 EEE
+ * LPI REQ indication is disabled. When =0 indicates that the P0 EEE LPI REQ
+ * indication is enabled. [15] - L1 REQ Mask. When =1 indicates that the L1
+ * REQ indication is disabled. When =0 indicates that the L1 indication is
+ * enabled. [16] - Rx EEE LPI Status Edge Detect Mask. When =1 indicates
+ * that the RX EEE LPI Status Falling Edge Detect indication is disabled (Rx
+ * EEE LPI is on - off). When =0 indicates that the RX EEE LPI Status
+ * Falling Edge Detec indication is enabled (Rx EEE LPI is on - off). This
+ * bit is applicable only in the EXIT Events Masks registers. [17] - L1
+ * Status Edge Detect Mask. When =1 indicates that the L1 Status Falling
+ * Edge Detect indication from the PCIE CORE is disabled (L1 is on - off).
+ * When =0 indicates that the L1 Status Falling Edge Detect indication from
+ * the PCIE CORE is enabled (L1 is on - off). This bit is applicable only in
+ * the EXIT Events Masks registers. Clock 25MHz. Reset on hard reset. */
+#define MISC_REG_CPMU_LP_MASK_ENT_P0 0xa880
+/* [RW 18] EEE LPI exit events mask. [0] - Vmain SM Mask. When 1 indicates
+ * that the Vmain SM end state is disabled. When 0 indicates that the Vmain
+ * SM end state is enabled. [1] - FW Queues Empty Mask. When 1 indicates
+ * that the FW command that all Queues are empty is disabled. When 0
+ * indicates that the FW command that all Queues are empty is enabled. [2] -
+ * FW Early Exit Mask / Reserved (Entry mask). When 1 indicates that the FW
+ * Early Exit command is disabled. When 0 indicates that the FW Early Exit
+ * command is enabled. This bit applicable only in the EXIT Events Mask
+ * registers. [3] - PBF Request Mask. When 1 indicates that the PBF Request
+ * indication is disabled. When 0 indicates that the PBF Request indication
+ * is enabled. [4] - Tx Request Mask. When =1 indicates that the Tx other
+ * Than PBF Request indication is disabled. When 0 indicates that the Tx
+ * Other Than PBF Request indication is enabled. [5] - Rx EEE LPI Status
+ * Mask. When 1 indicates that the RX EEE LPI Status indication is disabled.
+ * When 0 indicates that the RX LPI Status indication is enabled. In the
+ * EXIT Events Masks registers; this bit masks the falling edge detect of
+ * the EEE LPI Status (Rx EEE LPI is on - off). [6] - Tx Pause Mask. When 1
+ * indicates that the Tx Pause indication is disabled. When 0 indicates that
+ * the Tx Pause indication is enabled. [7] - BRB1 Empty Mask. When 1
+ * indicates that the BRB1 EMPTY indication is disabled. When 0 indicates
+ * that the BRB1 EMPTY indication is enabled. [8] - QM Idle Mask. When 1
+ * indicates that the QM IDLE indication is disabled. When 0 indicates that
+ * the QM IDLE indication is enabled. (One bit for both VOQ0 and VOQ1). [9]
+ * - QM LB Idle Mask. When 1 indicates that the QM IDLE indication for
+ * LOOPBACK is disabled. When 0 indicates that the QM IDLE indication for
+ * LOOPBACK is enabled. [10] - L1 Status Mask. When 1 indicates that the L1
+ * Status indication from the PCIE CORE is disabled. When 0 indicates that
+ * the RX EEE LPI Status indication from the PCIE CORE is enabled. In the
+ * EXIT Events Masks registers; this bit masks the falling edge detect of
+ * the L1 status (L1 is on - off). [11] - P0 E0 EEE EEE LPI REQ Mask. When
+ * =1 indicates that the P0 E0 EEE EEE LPI REQ indication is disabled. When
+ * =0 indicates that the P0 E0 EEE LPI REQ indication is enabled. [12] - P1
+ * E0 EEE LPI REQ Mask. When =1 indicates that the P0 EEE LPI REQ indication
+ * is disabled. When =0 indicates that the P0 EEE LPI REQ indication is
+ * enabled. [13] - P0 E1 EEE LPI REQ Mask. When =1 indicates that the P0 EEE
+ * LPI REQ indication is disabled. When =0 indicates that the P0 EEE LPI REQ
+ * indication is enabled. [14] - P1 E1 EEE LPI REQ Mask. When =1 indicates
+ * that the P0 EEE LPI REQ indication is disabled. When =0 indicates that
+ * the P0 EEE LPI REQ indication is enabled. [15] - L1 REQ Mask. When =1
+ * indicates that the L1 REQ indication is disabled. When =0 indicates that
+ * the L1 indication is enabled. [16] - Rx EEE LPI Status Edge Detect Mask.
+ * When =1 indicates that the RX EEE LPI Status Falling Edge Detect
+ * indication is disabled (Rx EEE LPI is on - off). When =0 indicates that
+ * the RX EEE LPI Status Falling Edge Detec indication is enabled (Rx EEE
+ * LPI is on - off). This bit is applicable only in the EXIT Events Masks
+ * registers. [17] - L1 Status Edge Detect Mask. When =1 indicates that the
+ * L1 Status Falling Edge Detect indication from the PCIE CORE is disabled
+ * (L1 is on - off). When =0 indicates that the L1 Status Falling Edge
+ * Detect indication from the PCIE CORE is enabled (L1 is on - off). This
+ * bit is applicable only in the EXIT Events Masks registers.Clock 25MHz.
+ * Reset on hard reset. */
+#define MISC_REG_CPMU_LP_MASK_EXT_P0 0xa888
+/* [RW 16] EEE LPI Entry Events Counter. A statistic counter with the number
+ * of counts that the SM entered the EEE LPI state. Clock 25MHz. Read only
+ * register. Reset on hard reset. */
+#define MISC_REG_CPMU_LP_SM_ENT_CNT_P0 0xa8b8
/* [RW 32] The following driver registers(1...16) represent 16 drivers and
32 clients. Each client can be controlled by one driver only. One in each
bit represent that this driver control the appropriate client (Ex: bit 5
@@ -5372,6 +5487,8 @@
/* [RW 32] Lower 48 bits of ctrl_sa register. Used as the SA in PAUSE/PFC
* packets transmitted by the MAC */
#define XMAC_REG_CTRL_SA_LO 0x28
+#define XMAC_REG_EEE_CTRL 0xd8
+#define XMAC_REG_EEE_TIMERS_HI 0xe4
#define XMAC_REG_PAUSE_CTRL 0x68
#define XMAC_REG_PFC_CTRL 0x70
#define XMAC_REG_PFC_CTRL_HI 0x74
@@ -6813,6 +6930,8 @@ Theotherbitsarereservedandshouldbezero*/
#define MDIO_AN_REG_LP_AUTO_NEG 0x0013
#define MDIO_AN_REG_LP_AUTO_NEG2 0x0014
#define MDIO_AN_REG_MASTER_STATUS 0x0021
+#define MDIO_AN_REG_EEE_ADV 0x003c
+#define MDIO_AN_REG_LP_EEE_ADV 0x003d
/*bcm*/
#define MDIO_AN_REG_LINK_STATUS 0x8304
#define MDIO_AN_REG_CL37_CL73 0x8370
@@ -6866,6 +6985,8 @@ Theotherbitsarereservedandshouldbezero*/
#define MDIO_PMA_REG_84823_LED3_STRETCH_EN 0x0080
/* BCM84833 only */
+#define MDIO_84833_TOP_CFG_FW_REV 0x400f
+#define MDIO_84833_TOP_CFG_FW_EEE 0x10b1
#define MDIO_84833_TOP_CFG_XGPHY_STRAP1 0x401a
#define MDIO_84833_SUPER_ISOLATE 0x8000
/* These are mailbox register set used by 84833. */
@@ -6993,11 +7114,13 @@ Theotherbitsarereservedandshouldbezero*/
#define MDIO_WC_REG_DIGITAL3_UP1 0x8329
#define MDIO_WC_REG_DIGITAL3_LP_UP1 0x832c
#define MDIO_WC_REG_DIGITAL4_MISC3 0x833c
+#define MDIO_WC_REG_DIGITAL4_MISC5 0x833e
#define MDIO_WC_REG_DIGITAL5_MISC6 0x8345
#define MDIO_WC_REG_DIGITAL5_MISC7 0x8349
#define MDIO_WC_REG_DIGITAL5_ACTUAL_SPEED 0x834e
#define MDIO_WC_REG_DIGITAL6_MP5_NEXTPAGECTRL 0x8350
#define MDIO_WC_REG_CL49_USERB0_CTRL 0x8368
+#define MDIO_WC_REG_EEE_COMBO_CONTROL0 0x8390
#define MDIO_WC_REG_TX66_CONTROL 0x83b0
#define MDIO_WC_REG_RX66_CONTROL 0x83c0
#define MDIO_WC_REG_RX66_SCW0 0x83c2
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
index 1e2785c..0e8bdcb 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
@@ -785,6 +785,10 @@ static int bnx2x_hw_stats_update(struct bnx2x *bp)
pstats->host_port_stats_counter++;
+ if (CHIP_IS_E3(bp))
+ estats->eee_tx_lpi += REG_RD(bp,
+ MISC_REG_CPMU_LP_SM_ENT_CNT_P0);
+
if (!BP_NOMCP(bp)) {
u32 nig_timer_max =
SHMEM_RD(bp, port_mb[BP_PORT(bp)].stat_nig_timer);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h
index 93e689fd..24b8e50 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h
@@ -203,6 +203,8 @@ struct bnx2x_eth_stats {
/* Recovery */
u32 recoverable_error;
u32 unrecoverable_error;
+ /* src: Clear-on-Read register; Will not survive PMF Migration */
+ u32 eee_tx_lpi;
};
--
1.7.9.rc2
--
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