bnx2x: add DCB support
Adding DCB initialization and handling on 57712 FW/HW
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Shmulik Ravid-Rabinovitz <shmulikr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bnx2x/bnx2x_dcb.h b/drivers/net/bnx2x/bnx2x_dcb.h
new file mode 100644
index 0000000..8dea56b
--- /dev/null
+++ b/drivers/net/bnx2x/bnx2x_dcb.h
@@ -0,0 +1,193 @@
+/* bnx2x_dcb.h: Broadcom Everest network driver.
+ *
+ * Copyright 2009-2010 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.
+ *
+ * Maintained by: Eilon Greenstein <eilong@broadcom.com>
+ * Written by: Dmitry Kravkov
+ *
+ */
+#ifndef BNX2X_DCB_H
+#define BNX2X_DCB_H
+
+#include "bnx2x_hsi.h"
+
+#define LLFC_DRIVER_TRAFFIC_TYPE_MAX 3 /* NW, iSCSI, FCoE */
+struct bnx2x_dcbx_app_params {
+ u32 enabled;
+ u32 traffic_type_priority[LLFC_DRIVER_TRAFFIC_TYPE_MAX];
+};
+
+#define E2_NUM_OF_COS 2
+#define BNX2X_DCBX_COS_NOT_STRICT 0
+#define BNX2X_DCBX_COS_LOW_STRICT 1
+#define BNX2X_DCBX_COS_HIGH_STRICT 2
+
+struct bnx2x_dcbx_cos_params {
+ u32 bw_tbl;
+ u32 pri_bitmask;
+ u8 strict;
+ u8 pauseable;
+};
+
+struct bnx2x_dcbx_pg_params {
+ u32 enabled;
+ u8 num_of_cos; /* valid COS entries */
+ struct bnx2x_dcbx_cos_params cos_params[E2_NUM_OF_COS];
+};
+
+struct bnx2x_dcbx_pfc_params {
+ u32 enabled;
+ u32 priority_non_pauseable_mask;
+};
+
+struct bnx2x_dcbx_port_params {
+ u32 dcbx_enabled;
+ struct bnx2x_dcbx_pfc_params pfc;
+ struct bnx2x_dcbx_pg_params ets;
+ struct bnx2x_dcbx_app_params app;
+};
+
+#define BNX2X_DCBX_CONFIG_INV_VALUE (0xFFFFFFFF)
+#define BNX2X_DCBX_OVERWRITE_SETTINGS_DISABLE 0
+#define BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE 1
+#define BNX2X_DCBX_OVERWRITE_SETTINGS_INVALID (BNX2X_DCBX_CONFIG_INV_VALUE)
+
+/*******************************************************************************
+ * LLDP protocol configuration parameters.
+ ******************************************************************************/
+struct bnx2x_config_lldp_params {
+ u32 overwrite_settings;
+ u32 msg_tx_hold;
+ u32 msg_fast_tx;
+ u32 tx_credit_max;
+ u32 msg_tx_interval;
+ u32 tx_fast;
+};
+
+struct bnx2x_admin_priority_app_table {
+ u32 valid;
+ u32 priority;
+#define INVALID_TRAFFIC_TYPE_PRIORITY (0xFFFFFFFF)
+ u32 traffic_type;
+#define TRAFFIC_TYPE_ETH 0
+#define TRAFFIC_TYPE_PORT 1
+ u32 app_id;
+};
+
+/*******************************************************************************
+ * DCBX protocol configuration parameters.
+ ******************************************************************************/
+struct bnx2x_config_dcbx_params {
+ u32 dcb_enable;
+ u32 admin_dcbx_enable;
+ u32 overwrite_settings;
+ u32 admin_dcbx_version;
+ u32 admin_ets_enable;
+ u32 admin_pfc_enable;
+ u32 admin_tc_supported_tx_enable;
+ u32 admin_ets_configuration_tx_enable;
+ u32 admin_ets_recommendation_tx_enable;
+ u32 admin_pfc_tx_enable;
+ u32 admin_application_priority_tx_enable;
+ u32 admin_ets_willing;
+ u32 admin_ets_reco_valid;
+ u32 admin_pfc_willing;
+ u32 admin_app_priority_willing;
+ u32 admin_configuration_bw_precentage[8];
+ u32 admin_configuration_ets_pg[8];
+ u32 admin_recommendation_bw_precentage[8];
+ u32 admin_recommendation_ets_pg[8];
+ u32 admin_pfc_bitmap;
+ struct bnx2x_admin_priority_app_table admin_priority_app_table[4];
+ u32 admin_default_priority;
+};
+
+#define GET_FLAGS(flags, bits) ((flags) & (bits))
+#define SET_FLAGS(flags, bits) ((flags) |= (bits))
+#define RESET_FLAGS(flags, bits) ((flags) &= ~(bits))
+
+enum {
+ DCBX_READ_LOCAL_MIB,
+ DCBX_READ_REMOTE_MIB
+};
+
+#define ETH_TYPE_FCOE (0x8906)
+#define TCP_PORT_ISCSI (0xCBC)
+
+#define PFC_VALUE_FRAME_SIZE (512)
+#define PFC_QUANTA_IN_NANOSEC_FROM_SPEED_MEGA(mega_speed) \
+ ((1000 * PFC_VALUE_FRAME_SIZE)/(mega_speed))
+
+#define PFC_BRB1_REG_HIGH_LLFC_LOW_THRESHOLD 130
+#define PFC_BRB1_REG_HIGH_LLFC_HIGH_THRESHOLD 170
+
+
+
+struct cos_entry_help_data {
+ u32 pri_join_mask;
+ u32 cos_bw;
+ u8 strict;
+ bool pausable;
+};
+
+struct cos_help_data {
+ struct cos_entry_help_data data[E2_NUM_OF_COS];
+ u8 num_of_cos;
+};
+
+#define DCBX_ILLEGAL_PG (0xFF)
+#define DCBX_PFC_PRI_MASK (0xFF)
+#define DCBX_STRICT_PRIORITY (15)
+#define DCBX_INVALID_COS_BW (0xFFFFFFFF)
+#define DCBX_PFC_PRI_NON_PAUSE_MASK(bp) \
+ ((bp)->dcbx_port_params.pfc.priority_non_pauseable_mask)
+#define DCBX_PFC_PRI_PAUSE_MASK(bp) \
+ ((u8)~DCBX_PFC_PRI_NON_PAUSE_MASK(bp))
+#define DCBX_PFC_PRI_GET_PAUSE(bp, pg_pri) \
+ ((pg_pri) & (DCBX_PFC_PRI_PAUSE_MASK(bp)))
+#define DCBX_PFC_PRI_GET_NON_PAUSE(bp, pg_pri) \
+ (DCBX_PFC_PRI_NON_PAUSE_MASK(bp) & (pg_pri))
+#define IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pg_pri) \
+ (pg_pri == DCBX_PFC_PRI_GET_PAUSE((bp), (pg_pri)))
+#define IS_DCBX_PFC_PRI_ONLY_NON_PAUSE(bp, pg_pri)\
+ ((pg_pri) == DCBX_PFC_PRI_GET_NON_PAUSE((bp), (pg_pri)))
+#define IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pg_pri) \
+ (!(IS_DCBX_PFC_PRI_ONLY_NON_PAUSE((bp), (pg_pri)) || \
+ IS_DCBX_PFC_PRI_ONLY_PAUSE((bp), (pg_pri))))
+
+
+struct pg_entry_help_data {
+ u8 num_of_dif_pri;
+ u8 pg;
+ u32 pg_priority;
+};
+
+struct pg_help_data {
+ struct pg_entry_help_data data[LLFC_DRIVER_TRAFFIC_TYPE_MAX];
+ u8 num_of_pg;
+};
+
+/* forward DCB/PFC related declarations */
+struct bnx2x;
+void bnx2x_dcb_init_intmem_pfc(struct bnx2x *bp);
+void bnx2x_dcbx_update(struct work_struct *work);
+void bnx2x_dcbx_init_params(struct bnx2x *bp);
+
+enum {
+ BNX2X_DCBX_STATE_NEG_RECEIVED = 0x1,
+ BNX2X_DCBX_STATE_TX_PAUSED = 0x2,
+ BNX2X_DCBX_STATE_TX_RELEASED = 0x4
+};
+void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state);
+
+#endif /* BNX2X_DCB_H */