broadcom: Move the Broadcom drivers

Moves the drivers for Broadcom devices into
drivers/net/ethernet/broadcom/ and the necessary Kconfig and Makefile
changes.

CC: Eilon Greenstein <eilong@broadcom.com>
CC: Michael Chan <mchan@broadcom.com>
CC: Matt Carlson <mcarlson@broadcom.com>
CC: Gary Zambrano <zambrano@broadcom.com>
CC: "Maciej W. Rozycki" <macro@linux-mips.org>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 493 insertions, 0 deletions

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h
new file mode 100644
index 000000000000..c12db6da213e
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h
@@ -0,0 +1,493 @@
+/* Copyright 2008-2011 Broadcom Corporation
+ *
+ * Unless you and Broadcom execute a separate written software license
+ * agreement governing use of this software, this software is licensed to you
+ * under the terms of the GNU General Public License version 2, available
+ * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
+ *
+ * Notwithstanding the above, under no circumstances may you combine this
+ * software in any way with any other Broadcom software provided under a
+ * license other than the GPL, without Broadcom's express prior written
+ * consent.
+ *
+ * Written by Yaniv Rosner
+ *
+ */
+
+#ifndef BNX2X_LINK_H
+#define BNX2X_LINK_H
+
+
+
+/***********************************************************/
+/*                         Defines                         */
+/***********************************************************/
+#define DEFAULT_PHY_DEV_ADDR	3
+#define E2_DEFAULT_PHY_DEV_ADDR	5
+
+
+
+#define BNX2X_FLOW_CTRL_AUTO		PORT_FEATURE_FLOW_CONTROL_AUTO
+#define BNX2X_FLOW_CTRL_TX		PORT_FEATURE_FLOW_CONTROL_TX
+#define BNX2X_FLOW_CTRL_RX		PORT_FEATURE_FLOW_CONTROL_RX
+#define BNX2X_FLOW_CTRL_BOTH		PORT_FEATURE_FLOW_CONTROL_BOTH
+#define BNX2X_FLOW_CTRL_NONE		PORT_FEATURE_FLOW_CONTROL_NONE
+
+#define NET_SERDES_IF_XFI		1
+#define NET_SERDES_IF_SFI		2
+#define NET_SERDES_IF_KR		3
+#define NET_SERDES_IF_DXGXS	4
+
+#define SPEED_AUTO_NEG		0
+#define SPEED_20000		20000
+
+#define SFP_EEPROM_VENDOR_NAME_ADDR		0x14
+#define SFP_EEPROM_VENDOR_NAME_SIZE		16
+#define SFP_EEPROM_VENDOR_OUI_ADDR		0x25
+#define SFP_EEPROM_VENDOR_OUI_SIZE		3
+#define SFP_EEPROM_PART_NO_ADDR			0x28
+#define SFP_EEPROM_PART_NO_SIZE			16
+#define SFP_EEPROM_REVISION_ADDR		0x38
+#define SFP_EEPROM_REVISION_SIZE		4
+#define SFP_EEPROM_SERIAL_ADDR			0x44
+#define SFP_EEPROM_SERIAL_SIZE			16
+#define SFP_EEPROM_DATE_ADDR			0x54 /* ASCII YYMMDD */
+#define SFP_EEPROM_DATE_SIZE			6
+#define PWR_FLT_ERR_MSG_LEN			250
+
+#define XGXS_EXT_PHY_TYPE(ext_phy_config) \
+		((ext_phy_config) & PORT_HW_CFG_XGXS_EXT_PHY_TYPE_MASK)
+#define XGXS_EXT_PHY_ADDR(ext_phy_config) \
+		(((ext_phy_config) & PORT_HW_CFG_XGXS_EXT_PHY_ADDR_MASK) >> \
+		 PORT_HW_CFG_XGXS_EXT_PHY_ADDR_SHIFT)
+#define SERDES_EXT_PHY_TYPE(ext_phy_config) \
+		((ext_phy_config) & PORT_HW_CFG_SERDES_EXT_PHY_TYPE_MASK)
+
+/* Single Media Direct board is the plain 577xx board with CX4/RJ45 jacks */
+#define SINGLE_MEDIA_DIRECT(params)	(params->num_phys == 1)
+/* Single Media board contains single external phy */
+#define SINGLE_MEDIA(params)		(params->num_phys == 2)
+/* Dual Media board contains two external phy with different media */
+#define DUAL_MEDIA(params)		(params->num_phys == 3)
+
+#define FW_PARAM_PHY_ADDR_MASK		0x000000FF
+#define FW_PARAM_PHY_TYPE_MASK		0x0000FF00
+#define FW_PARAM_MDIO_CTRL_MASK		0xFFFF0000
+#define FW_PARAM_MDIO_CTRL_OFFSET		16
+#define FW_PARAM_PHY_ADDR(fw_param) (fw_param & \
+					   FW_PARAM_PHY_ADDR_MASK)
+#define FW_PARAM_PHY_TYPE(fw_param) (fw_param & \
+					   FW_PARAM_PHY_TYPE_MASK)
+#define FW_PARAM_MDIO_CTRL(fw_param) ((fw_param & \
+					    FW_PARAM_MDIO_CTRL_MASK) >> \
+					    FW_PARAM_MDIO_CTRL_OFFSET)
+#define FW_PARAM_SET(phy_addr, phy_type, mdio_access) \
+	(phy_addr | phy_type | mdio_access << FW_PARAM_MDIO_CTRL_OFFSET)
+
+
+#define PFC_BRB_FULL_LB_XOFF_THRESHOLD				170
+#define PFC_BRB_FULL_LB_XON_THRESHOLD				250
+
+#define MAXVAL(a, b) (((a) > (b)) ? (a) : (b))
+/***********************************************************/
+/*                         Structs                         */
+/***********************************************************/
+#define INT_PHY		0
+#define EXT_PHY1	1
+#define EXT_PHY2	2
+#define MAX_PHYS	3
+
+/* Same configuration is shared between the XGXS and the first external phy */
+#define LINK_CONFIG_SIZE (MAX_PHYS - 1)
+#define LINK_CONFIG_IDX(_phy_idx) ((_phy_idx == INT_PHY) ? \
+					 0 : (_phy_idx - 1))
+/***********************************************************/
+/*                      bnx2x_phy struct                     */
+/*  Defines the required arguments and function per phy    */
+/***********************************************************/
+struct link_vars;
+struct link_params;
+struct bnx2x_phy;
+
+typedef u8 (*config_init_t)(struct bnx2x_phy *phy, struct link_params *params,
+			    struct link_vars *vars);
+typedef u8 (*read_status_t)(struct bnx2x_phy *phy, struct link_params *params,
+			    struct link_vars *vars);
+typedef void (*link_reset_t)(struct bnx2x_phy *phy,
+			     struct link_params *params);
+typedef void (*config_loopback_t)(struct bnx2x_phy *phy,
+				  struct link_params *params);
+typedef u8 (*format_fw_ver_t)(u32 raw, u8 *str, u16 *len);
+typedef void (*hw_reset_t)(struct bnx2x_phy *phy, struct link_params *params);
+typedef void (*set_link_led_t)(struct bnx2x_phy *phy,
+			       struct link_params *params, u8 mode);
+typedef void (*phy_specific_func_t)(struct bnx2x_phy *phy,
+				    struct link_params *params, u32 action);
+
+struct bnx2x_phy {
+	u32 type;
+
+	/* Loaded during init */
+	u8 addr;
+	u8 def_md_devad;
+	u16 flags;
+	/* Require HW lock */
+#define FLAGS_HW_LOCK_REQUIRED		(1<<0)
+	/* No Over-Current detection */
+#define FLAGS_NOC			(1<<1)
+	/* Fan failure detection required */
+#define FLAGS_FAN_FAILURE_DET_REQ	(1<<2)
+	/* Initialize first the XGXS and only then the phy itself */
+#define FLAGS_INIT_XGXS_FIRST		(1<<3)
+#define FLAGS_WC_DUAL_MODE		(1<<4)
+#define FLAGS_4_PORT_MODE		(1<<5)
+#define FLAGS_REARM_LATCH_SIGNAL	(1<<6)
+#define FLAGS_SFP_NOT_APPROVED		(1<<7)
+#define FLAGS_MDC_MDIO_WA		(1<<8)
+#define FLAGS_DUMMY_READ		(1<<9)
+#define FLAGS_MDC_MDIO_WA_B0		(1<<10)
+#define FLAGS_TX_ERROR_CHECK		(1<<12)
+
+	/* preemphasis values for the rx side */
+	u16 rx_preemphasis[4];
+
+	/* preemphasis values for the tx side */
+	u16 tx_preemphasis[4];
+
+	/* EMAC address for access MDIO */
+	u32 mdio_ctrl;
+
+	u32 supported;
+
+	u32 media_type;
+#define	ETH_PHY_UNSPECIFIED 0x0
+#define	ETH_PHY_SFP_FIBER   0x1
+#define	ETH_PHY_XFP_FIBER   0x2
+#define	ETH_PHY_DA_TWINAX   0x3
+#define	ETH_PHY_BASE_T      0x4
+#define	ETH_PHY_KR          0xf0
+#define	ETH_PHY_CX4         0xf1
+#define	ETH_PHY_NOT_PRESENT 0xff
+
+	/* The address in which version is located*/
+	u32 ver_addr;
+
+	u16 req_flow_ctrl;
+
+	u16 req_line_speed;
+
+	u32 speed_cap_mask;
+
+	u16 req_duplex;
+	u16 rsrv;
+	/* Called per phy/port init, and it configures LASI, speed, autoneg,
+	 duplex, flow control negotiation, etc. */
+	config_init_t config_init;
+
+	/* Called due to interrupt. It determines the link, speed */
+	read_status_t read_status;
+
+	/* Called when driver is unloading. Should reset the phy */
+	link_reset_t link_reset;
+
+	/* Set the loopback configuration for the phy */
+	config_loopback_t config_loopback;
+
+	/* Format the given raw number into str up to len */
+	format_fw_ver_t format_fw_ver;
+
+	/* Reset the phy (both ports) */
+	hw_reset_t hw_reset;
+
+	/* Set link led mode (on/off/oper)*/
+	set_link_led_t set_link_led;
+
+	/* PHY Specific tasks */
+	phy_specific_func_t phy_specific_func;
+#define DISABLE_TX	1
+#define ENABLE_TX	2
+};
+
+/* Inputs parameters to the CLC */
+struct link_params {
+
+	u8 port;
+
+	/* Default / User Configuration */
+	u8 loopback_mode;
+#define LOOPBACK_NONE		0
+#define LOOPBACK_EMAC		1
+#define LOOPBACK_BMAC		2
+#define LOOPBACK_XGXS		3
+#define LOOPBACK_EXT_PHY	4
+#define LOOPBACK_EXT		5
+#define LOOPBACK_UMAC		6
+#define LOOPBACK_XMAC		7
+
+	/* Device parameters */
+	u8 mac_addr[6];
+
+	u16 req_duplex[LINK_CONFIG_SIZE];
+	u16 req_flow_ctrl[LINK_CONFIG_SIZE];
+
+	u16 req_line_speed[LINK_CONFIG_SIZE]; /* Also determine AutoNeg */
+
+	/* shmem parameters */
+	u32 shmem_base;
+	u32 shmem2_base;
+	u32 speed_cap_mask[LINK_CONFIG_SIZE];
+	u32 switch_cfg;
+#define SWITCH_CFG_1G		PORT_FEATURE_CON_SWITCH_1G_SWITCH
+#define SWITCH_CFG_10G		PORT_FEATURE_CON_SWITCH_10G_SWITCH
+#define SWITCH_CFG_AUTO_DETECT	PORT_FEATURE_CON_SWITCH_AUTO_DETECT
+
+	u32 lane_config;
+
+	/* Phy register parameter */
+	u32 chip_id;
+
+	/* features */
+	u32 feature_config_flags;
+#define FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED	(1<<0)
+#define FEATURE_CONFIG_PFC_ENABLED			(1<<1)
+#define FEATURE_CONFIG_BC_SUPPORTS_OPT_MDL_VRFY		(1<<2)
+#define FEATURE_CONFIG_BC_SUPPORTS_DUAL_PHY_OPT_MDL_VRFY	(1<<3)
+#define FEATURE_CONFIG_AUTOGREEEN_ENABLED			(1<<9)
+#define FEATURE_CONFIG_BC_SUPPORTS_SFP_TX_DISABLED		(1<<10)
+	/* Will be populated during common init */
+	struct bnx2x_phy phy[MAX_PHYS];
+
+	/* Will be populated during common init */
+	u8 num_phys;
+
+	u8 rsrv;
+	u16 hw_led_mode; /* part of the hw_config read from the shmem */
+	u32 multi_phy_config;
+
+	/* Device pointer passed to all callback functions */
+	struct bnx2x *bp;
+	u16 req_fc_auto_adv; /* Should be set to TX / BOTH when
+				req_flow_ctrl is set to AUTO */
+};
+
+/* Output parameters */
+struct link_vars {
+	u8 phy_flags;
+#define PHY_XGXS_FLAG			(1<<0)
+#define PHY_SGMII_FLAG			(1<<1)
+#define PHY_PHYSICAL_LINK_FLAG		(1<<2)
+#define PHY_HALF_OPEN_CONN_FLAG		(1<<3)
+#define PHY_OVER_CURRENT_FLAG		(1<<4)
+
+	u8 mac_type;
+#define MAC_TYPE_NONE		0
+#define MAC_TYPE_EMAC		1
+#define MAC_TYPE_BMAC		2
+#define MAC_TYPE_UMAC		3
+#define MAC_TYPE_XMAC		4
+
+	u8 phy_link_up; /* internal phy link indication */
+	u8 link_up;
+
+	u16 line_speed;
+	u16 duplex;
+
+	u16 flow_ctrl;
+	u16 ieee_fc;
+
+	/* The same definitions as the shmem parameter */
+	u32 link_status;
+	u8 fault_detected;
+	u8 rsrv1;
+	u16 periodic_flags;
+#define PERIODIC_FLAGS_LINK_EVENT	0x0001
+
+	u32 aeu_int_mask;
+};
+
+/***********************************************************/
+/*                         Functions                       */
+/***********************************************************/
+int bnx2x_phy_init(struct link_params *params, struct link_vars *vars);
+
+/* Reset the link. Should be called when driver or interface goes down
+   Before calling phy firmware upgrade, the reset_ext_phy should be set
+   to 0 */
+int bnx2x_link_reset(struct link_params *params, struct link_vars *vars,
+		     u8 reset_ext_phy);
+
+/* bnx2x_link_update should be called upon link interrupt */
+int bnx2x_link_update(struct link_params *params, struct link_vars *vars);
+
+/* use the following phy functions to read/write from external_phy
+  In order to use it to read/write internal phy registers, use
+  DEFAULT_PHY_DEV_ADDR as devad, and (_bank + (_addr & 0xf)) as
+  the register */
+int bnx2x_phy_read(struct link_params *params, u8 phy_addr,
+		   u8 devad, u16 reg, u16 *ret_val);
+
+int bnx2x_phy_write(struct link_params *params, u8 phy_addr,
+		    u8 devad, u16 reg, u16 val);
+
+/* Reads the link_status from the shmem,
+   and update the link vars accordingly */
+void bnx2x_link_status_update(struct link_params *input,
+			    struct link_vars *output);
+/* returns string representing the fw_version of the external phy */
+int bnx2x_get_ext_phy_fw_version(struct link_params *params, u8 driver_loaded,
+				 u8 *version, u16 len);
+
+/* Set/Unset the led
+   Basically, the CLC takes care of the led for the link, but in case one needs
+   to set/unset the led unnaturally, set the "mode" to LED_MODE_OPER to
+   blink the led, and LED_MODE_OFF to set the led off.*/
+int bnx2x_set_led(struct link_params *params,
+		  struct link_vars *vars, u8 mode, u32 speed);
+#define LED_MODE_OFF			0
+#define LED_MODE_ON			1
+#define LED_MODE_OPER			2
+#define LED_MODE_FRONT_PANEL_OFF	3
+
+/* bnx2x_handle_module_detect_int should be called upon module detection
+   interrupt */
+void bnx2x_handle_module_detect_int(struct link_params *params);
+
+/* Get the actual link status. In case it returns 0, link is up,
+	otherwise link is down*/
+int bnx2x_test_link(struct link_params *params, struct link_vars *vars,
+		    u8 is_serdes);
+
+/* One-time initialization for external phy after power up */
+int bnx2x_common_init_phy(struct bnx2x *bp, u32 shmem_base_path[],
+			  u32 shmem2_base_path[], u32 chip_id);
+
+/* Reset the external PHY using GPIO */
+void bnx2x_ext_phy_hw_reset(struct bnx2x *bp, u8 port);
+
+/* Reset the external of SFX7101 */
+void bnx2x_sfx7101_sp_sw_reset(struct bnx2x *bp, struct bnx2x_phy *phy);
+
+/* Read "byte_cnt" bytes from address "addr" from the SFP+ EEPROM */
+int bnx2x_read_sfp_module_eeprom(struct bnx2x_phy *phy,
+				 struct link_params *params, u16 addr,
+				 u8 byte_cnt, u8 *o_buf);
+
+void bnx2x_hw_reset_phy(struct link_params *params);
+
+/* Checks if HW lock is required for this phy/board type */
+u8 bnx2x_hw_lock_required(struct bnx2x *bp, u32 shmem_base,
+			  u32 shmem2_base);
+
+/* Check swap bit and adjust PHY order */
+u32 bnx2x_phy_selection(struct link_params *params);
+
+/* Probe the phys on board, and populate them in "params" */
+int bnx2x_phy_probe(struct link_params *params);
+
+/* Checks if fan failure detection is required on one of the phys on board */
+u8 bnx2x_fan_failure_det_req(struct bnx2x *bp, u32 shmem_base,
+			     u32 shmem2_base, u8 port);
+
+
+
+/* DCBX structs */
+
+/* Number of maximum COS per chip */
+#define DCBX_E2E3_MAX_NUM_COS		(2)
+#define DCBX_E3B0_MAX_NUM_COS_PORT0	(6)
+#define DCBX_E3B0_MAX_NUM_COS_PORT1	(3)
+#define DCBX_E3B0_MAX_NUM_COS		( \
+			MAXVAL(DCBX_E3B0_MAX_NUM_COS_PORT0, \
+			    DCBX_E3B0_MAX_NUM_COS_PORT1))
+
+#define DCBX_MAX_NUM_COS			( \
+			MAXVAL(DCBX_E3B0_MAX_NUM_COS, \
+			    DCBX_E2E3_MAX_NUM_COS))
+
+/* PFC port configuration params */
+struct bnx2x_nig_brb_pfc_port_params {
+	/* NIG */
+	u32 pause_enable;
+	u32 llfc_out_en;
+	u32 llfc_enable;
+	u32 pkt_priority_to_cos;
+	u8 num_of_rx_cos_priority_mask;
+	u32 rx_cos_priority_mask[DCBX_MAX_NUM_COS];
+	u32 llfc_high_priority_classes;
+	u32 llfc_low_priority_classes;
+	/* BRB */
+	u32 cos0_pauseable;
+	u32 cos1_pauseable;
+};
+
+
+/* ETS port configuration params */
+struct bnx2x_ets_bw_params {
+	u8 bw;
+};
+
+struct bnx2x_ets_sp_params {
+	/**
+	 * valid values are 0 - 5. 0 is highest strict priority.
+	 * There can't be two COS's with the same pri.
+	 */
+	u8 pri;
+};
+
+enum bnx2x_cos_state {
+	bnx2x_cos_state_strict = 0,
+	bnx2x_cos_state_bw = 1,
+};
+
+struct bnx2x_ets_cos_params {
+	enum bnx2x_cos_state state ;
+	union {
+		struct bnx2x_ets_bw_params bw_params;
+		struct bnx2x_ets_sp_params sp_params;
+	} params;
+};
+
+struct bnx2x_ets_params {
+	u8 num_of_cos; /* Number of valid COS entries*/
+	struct bnx2x_ets_cos_params cos[DCBX_MAX_NUM_COS];
+};
+
+/**
+ * Used to update the PFC attributes in EMAC, BMAC, NIG and BRB
+ * when link is already up
+ */
+int bnx2x_update_pfc(struct link_params *params,
+		      struct link_vars *vars,
+		      struct bnx2x_nig_brb_pfc_port_params *pfc_params);
+
+
+/* Used to configure the ETS to disable */
+int bnx2x_ets_disabled(struct link_params *params,
+		       struct link_vars *vars);
+
+/* Used to configure the ETS to BW limited */
+void bnx2x_ets_bw_limit(const struct link_params *params, const u32 cos0_bw,
+			const u32 cos1_bw);
+
+/* Used to configure the ETS to strict */
+int bnx2x_ets_strict(const struct link_params *params, const u8 strict_cos);
+
+
+/*  Configure the COS to ETS according to BW and SP settings.*/
+int bnx2x_ets_e3b0_config(const struct link_params *params,
+			 const struct link_vars *vars,
+			 const struct bnx2x_ets_params *ets_params);
+/* Read pfc statistic*/
+void bnx2x_pfc_statistic(struct link_params *params, struct link_vars *vars,
+						 u32 pfc_frames_sent[2],
+						 u32 pfc_frames_received[2]);
+void bnx2x_init_mod_abs_int(struct bnx2x *bp, struct link_vars *vars,
+			    u32 chip_id, u32 shmem_base, u32 shmem2_base,
+			    u8 port);
+
+int bnx2x_sfp_module_detection(struct bnx2x_phy *phy,
+			       struct link_params *params);
+
+void bnx2x_period_func(struct link_params *params, struct link_vars *vars);
+
+#endif /* BNX2X_LINK_H */