net: Add be2net driver.

Signed-off-by: NSathya Perla <sathyap@serverengines.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

MAINTAINERS

@@ -3880,6 +3880,15 @@ L:	linux-ide@vger.kernel.org
 T:	git kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev.git
 S:	Supported
 
+SERVER ENGINES 10Gbps NIC - BladeEngine 2 DRIVER
+P:	Sathya Perla
+M:	sathyap@serverengines.com
+P:      Subbu Seetharaman
+M:      subbus@serverengines.com
+L:      netdev@vger.kernel.org
+W:      http://www.serverengines.com
+S:      Supported
+
 SFC NETWORK DRIVER
 P:	Steve Hodgson
 P:	Ben Hutchings

drivers/net/Kconfig

@@ -2630,6 +2630,8 @@ config QLGE
 
 source "drivers/net/sfc/Kconfig"
 
+source "drivers/net/benet/Kconfig"
+
 endif # NETDEV_10000
 
 source "drivers/net/tokenring/Kconfig"

drivers/net/Makefile

@@ -22,6 +22,7 @@ obj-$(CONFIG_GIANFAR) += gianfar_driver.o
 obj-$(CONFIG_TEHUTI) += tehuti.o
 obj-$(CONFIG_ENIC) += enic/
 obj-$(CONFIG_JME) += jme.o
+obj-$(CONFIG_BE2NET) += benet/
 
 gianfar_driver-objs := gianfar.o \
 		gianfar_ethtool.o \

drivers/net/benet/Kconfig

+config BE2NET
+	tristate "ServerEngines' 10Gbps NIC - BladeEngine 2"
+	depends on PCI && INET
+	select INET_LRO
+	help
+	This driver implements the NIC functionality for ServerEngines'
+	10Gbps network adapter - BladeEngine 2.

drivers/net/benet/Makefile

+#
+# Makefile to build the network driver for ServerEngine's BladeEngine.
+#
+
+obj-$(CONFIG_BE2NET) += be2net.o
+
+be2net-y :=  be_main.o be_cmds.o be_ethtool.o

drivers/net/benet/be.h

+/*
+ * Copyright (C) 2005 - 2009 ServerEngines
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.  The full GNU General
+ * Public License is included in this distribution in the file called COPYING.
+ *
+ * Contact Information:
+ * linux-drivers@serverengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ */
+
+#ifndef BE_H
+#define BE_H
+
+#include <linux/pci.h>
+#include <linux/etherdevice.h>
+#include <linux/version.h>
+#include <linux/delay.h>
+#include <net/tcp.h>
+#include <net/ip.h>
+#include <net/ipv6.h>
+#include <linux/if_vlan.h>
+#include <linux/workqueue.h>
+#include <linux/interrupt.h>
+#include <linux/inet_lro.h>
+
+#include "be_hw.h"
+
+#define DRV_VER			"2.0.348"
+#define DRV_NAME		"be2net"
+#define BE_NAME			"ServerEngines BladeEngine2 10Gbps NIC"
+#define DRV_DESC		BE_NAME "Driver"
+
+/* Number of bytes of an RX frame that are copied to skb->data */
+#define BE_HDR_LEN 		64
+#define BE_MAX_JUMBO_FRAME_SIZE	9018
+#define BE_MIN_MTU		256
+
+#define BE_NUM_VLANS_SUPPORTED	64
+#define BE_MAX_EQD		96
+#define	BE_MAX_TX_FRAG_COUNT	30
+
+#define EVNT_Q_LEN		1024
+#define TX_Q_LEN		2048
+#define TX_CQ_LEN		1024
+#define RX_Q_LEN		1024	/* Does not support any other value */
+#define RX_CQ_LEN		1024
+#define MCC_Q_LEN		64	/* total size not to exceed 8 pages */
+#define MCC_CQ_LEN		256
+
+#define BE_NAPI_WEIGHT		64
+#define MAX_RX_POST 		BE_NAPI_WEIGHT /* Frags posted at a time */
+#define RX_FRAGS_REFILL_WM	(RX_Q_LEN - MAX_RX_POST)
+
+#define BE_MAX_LRO_DESCRIPTORS  16
+#define BE_MAX_FRAGS_PER_FRAME  16
+
+struct be_dma_mem {
+	void *va;
+	dma_addr_t dma;
+	u32 size;
+};
+
+struct be_queue_info {
+	struct be_dma_mem dma_mem;
+	u16 len;
+	u16 entry_size;	/* Size of an element in the queue */
+	u16 id;
+	u16 tail, head;
+	bool created;
+	atomic_t used;	/* Number of valid elements in the queue */
+};
+
+struct be_ctrl_info {
+	u8 __iomem *csr;
+	u8 __iomem *db;		/* Door Bell */
+	u8 __iomem *pcicfg;	/* PCI config space */
+	int pci_func;
+
+	/* Mbox used for cmd request/response */
+	spinlock_t cmd_lock;	/* For serializing cmds to BE card */
+	struct be_dma_mem mbox_mem;
+	/* Mbox mem is adjusted to align to 16 bytes. The allocated addr
+	 * is stored for freeing purpose */
+	struct be_dma_mem mbox_mem_alloced;
+};
+
+#include "be_cmds.h"
+
+struct be_drvr_stats {
+	u32 be_tx_reqs;		/* number of TX requests initiated */
+	u32 be_tx_stops;	/* number of times TX Q was stopped */
+	u32 be_fwd_reqs;	/* number of send reqs through forwarding i/f */
+	u32 be_tx_wrbs;		/* number of tx WRBs used */
+	u32 be_tx_events;	/* number of tx completion events  */
+	u32 be_tx_compl;	/* number of tx completion entries processed */
+	u64 be_tx_jiffies;
+	ulong be_tx_bytes;
+	ulong be_tx_bytes_prev;
+	u32 be_tx_rate;
+
+	u32 cache_barrier[16];
+
+	u32 be_ethrx_post_fail;/* number of ethrx buffer alloc failures */
+	u32 be_polls;		/* number of times NAPI called poll function */
+	u32 be_rx_events;	/* number of ucast rx completion events  */
+	u32 be_rx_compl;	/* number of rx completion entries processed */
+	u32 be_lro_hgram_data[8];	/* histogram of LRO data packets */
+	u32 be_lro_hgram_ack[8];	/* histogram of LRO ACKs */
+	u64 be_rx_jiffies;
+	ulong be_rx_bytes;
+	ulong be_rx_bytes_prev;
+	u32 be_rx_rate;
+	/* number of non ether type II frames dropped where
+	 * frame len > length field of Mac Hdr */
+	u32 be_802_3_dropped_frames;
+	/* number of non ether type II frames malformed where
+	 * in frame len < length field of Mac Hdr */
+	u32 be_802_3_malformed_frames;
+	u32 be_rxcp_err;	/* Num rx completion entries w/ err set. */
+	ulong rx_fps_jiffies;	/* jiffies at last FPS calc */
+	u32 be_rx_frags;
+	u32 be_prev_rx_frags;
+	u32 be_rx_fps;		/* Rx frags per second */
+};
+
+struct be_stats_obj {
+	struct be_drvr_stats drvr_stats;
+	struct net_device_stats net_stats;
+	struct be_dma_mem cmd;
+};
+
+struct be_eq_obj {
+	struct be_queue_info q;
+	char desc[32];
+
+	/* Adaptive interrupt coalescing (AIC) info */
+	bool enable_aic;
+	u16 min_eqd;		/* in usecs */
+	u16 max_eqd;		/* in usecs */
+	u16 cur_eqd;		/* in usecs */
+
+	struct napi_struct napi;
+};
+
+struct be_tx_obj {
+	struct be_queue_info q;
+	struct be_queue_info cq;
+	/* Remember the skbs that were transmitted */
+	struct sk_buff *sent_skb_list[TX_Q_LEN];
+};
+
+/* Struct to remember the pages posted for rx frags */
+struct be_rx_page_info {
+	struct page *page;
+	dma_addr_t bus;
+	u16 page_offset;
+	bool last_page_user;
+};
+
+struct be_rx_obj {
+	struct be_queue_info q;
+	struct be_queue_info cq;
+	struct be_rx_page_info page_info_tbl[RX_Q_LEN];
+	struct net_lro_mgr lro_mgr;
+	struct net_lro_desc lro_desc[BE_MAX_LRO_DESCRIPTORS];
+};
+
+#define BE_NUM_MSIX_VECTORS		2	/* 1 each for Tx and Rx */
+struct be_adapter {
+	struct pci_dev *pdev;
+	struct net_device *netdev;
+
+	/* Mbox, pci config, csr address information */
+	struct be_ctrl_info ctrl;
+
+	struct msix_entry msix_entries[BE_NUM_MSIX_VECTORS];
+	bool msix_enabled;
+	bool isr_registered;
+
+	/* TX Rings */
+	struct be_eq_obj tx_eq;
+	struct be_tx_obj tx_obj;
+
+	u32 cache_line_break[8];
+
+	/* Rx rings */
+	struct be_eq_obj rx_eq;
+	struct be_rx_obj rx_obj;
+	u32 big_page_size;	/* Compounded page size shared by rx wrbs */
+
+	struct vlan_group *vlan_grp;
+	u16 num_vlans;
+	u8 vlan_tag[VLAN_GROUP_ARRAY_LEN];
+
+	struct be_stats_obj stats;
+	/* Work queue used to perform periodic tasks like getting statistics */
+	struct delayed_work work;
+
+	/* Ethtool knobs and info */
+	bool rx_csum; 		/* BE card must perform rx-checksumming */
+	u32 max_rx_coal;
+	char fw_ver[FW_VER_LEN];
+	u32 if_handle;		/* Used to configure filtering */
+	u32 pmac_id;		/* MAC addr handle used by BE card */
+
+	struct be_link_info link;
+	u32 port_num;
+};
+
+extern struct ethtool_ops be_ethtool_ops;
+
+#define drvr_stats(adapter)		(&adapter->stats.drvr_stats)
+
+#define BE_SET_NETDEV_OPS(netdev, ops)	(netdev->netdev_ops = ops)
+
+static inline u32 MODULO(u16 val, u16 limit)
+{
+	BUG_ON(limit & (limit - 1));
+	return val & (limit - 1);
+}
+
+static inline void index_adv(u16 *index, u16 val, u16 limit)
+{
+	*index = MODULO((*index + val), limit);
+}
+
+static inline void index_inc(u16 *index, u16 limit)
+{
+	*index = MODULO((*index + 1), limit);
+}
+
+#define PAGE_SHIFT_4K		12
+#define PAGE_SIZE_4K		(1 << PAGE_SHIFT_4K)
+
+/* Returns number of pages spanned by the data starting at the given addr */
+#define PAGES_4K_SPANNED(_address, size) 				\
+		((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) + 	\
+			(size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
+
+/* Byte offset into the page corresponding to given address */
+#define OFFSET_IN_PAGE(addr)						\
+		 ((size_t)(addr) & (PAGE_SIZE_4K-1))
+
+/* Returns bit offset within a DWORD of a bitfield */
+#define AMAP_BIT_OFFSET(_struct, field)  				\
+		(((size_t)&(((_struct *)0)->field))%32)
+
+/* Returns the bit mask of the field that is NOT shifted into location. */
+static inline u32 amap_mask(u32 bitsize)
+{
+	return (bitsize == 32 ? 0xFFFFFFFF : (1 << bitsize) - 1);
+}
+
+static inline void
+amap_set(void *ptr, u32 dw_offset, u32 mask, u32 offset, u32 value)
+{
+	u32 *dw = (u32 *) ptr + dw_offset;
+	*dw &= ~(mask << offset);
+	*dw |= (mask & value) << offset;
+}
+
+#define AMAP_SET_BITS(_struct, field, ptr, val)				\
+		amap_set(ptr,						\
+			offsetof(_struct, field)/32,			\
+			amap_mask(sizeof(((_struct *)0)->field)),	\
+			AMAP_BIT_OFFSET(_struct, field),		\
+			val)
+
+static inline u32 amap_get(void *ptr, u32 dw_offset, u32 mask, u32 offset)
+{
+	u32 *dw = (u32 *) ptr;
+	return mask & (*(dw + dw_offset) >> offset);
+}
+
+#define AMAP_GET_BITS(_struct, field, ptr)				\
+		amap_get(ptr,						\
+			offsetof(_struct, field)/32,			\
+			amap_mask(sizeof(((_struct *)0)->field)),	\
+			AMAP_BIT_OFFSET(_struct, field))
+
+#define be_dws_cpu_to_le(wrb, len)	swap_dws(wrb, len)
+#define be_dws_le_to_cpu(wrb, len)	swap_dws(wrb, len)
+static inline void swap_dws(void *wrb, int len)
+{
+#ifdef __BIG_ENDIAN
+	u32 *dw = wrb;
+	BUG_ON(len % 4);
+	do {
+		*dw = cpu_to_le32(*dw);
+		dw++;
+		len -= 4;
+	} while (len);
+#endif				/* __BIG_ENDIAN */
+}
+
+static inline u8 is_tcp_pkt(struct sk_buff *skb)
+{
+	u8 val = 0;
+
+	if (ip_hdr(skb)->version == 4)
+		val = (ip_hdr(skb)->protocol == IPPROTO_TCP);
+	else if (ip_hdr(skb)->version == 6)
+		val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_TCP);
+
+	return val;
+}
+
+static inline u8 is_udp_pkt(struct sk_buff *skb)
+{
+	u8 val = 0;
+
+	if (ip_hdr(skb)->version == 4)
+		val = (ip_hdr(skb)->protocol == IPPROTO_UDP);
+	else if (ip_hdr(skb)->version == 6)
+		val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_UDP);
+
+	return val;
+}
+
+#endif				/* BE_H */

drivers/net/benet/be_cmds.h

+/*
+ * Copyright (C) 2005 - 2009 ServerEngines
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.  The full GNU General
+ * Public License is included in this distribution in the file called COPYING.
+ *
+ * Contact Information:
+ * linux-drivers@serverengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ */
+
+/*
+ * The driver sends configuration and managements command requests to the
+ * firmware in the BE. These requests are communicated to the processor
+ * using Work Request Blocks (WRBs) submitted to the MCC-WRB ring or via one
+ * WRB inside a MAILBOX.
+ * The commands are serviced by the ARM processor in the BladeEngine's MPU.
+ */
+
+struct be_sge {
+	u32 pa_lo;
+	u32 pa_hi;
+	u32 len;
+};
+
+#define MCC_WRB_EMBEDDED_MASK	1 	/* bit 0 of dword 0*/
+#define MCC_WRB_SGE_CNT_SHIFT	3	/* bits 3 - 7 of dword 0 */
+#define MCC_WRB_SGE_CNT_MASK	0x1F	/* bits 3 - 7 of dword 0 */
+struct be_mcc_wrb {
+	u32 embedded;		/* dword 0 */
+	u32 payload_length;	/* dword 1 */
+	u32 tag0;		/* dword 2 */
+	u32 tag1;		/* dword 3 */
+	u32 rsvd;		/* dword 4 */
+	union {
+		u8 embedded_payload[236]; /* used by embedded cmds */
+		struct be_sge sgl[19];    /* used by non-embedded cmds */
+	} payload;
+};
+
+#define CQE_FLAGS_VALID_MASK 		(1 << 31)
+#define CQE_FLAGS_ASYNC_MASK 		(1 << 30)
+#define CQE_FLAGS_COMPLETED_MASK 	(1 << 28)
+#define CQE_FLAGS_CONSUMED_MASK 	(1 << 27)
+
+/* Completion Status */
+enum {
+	MCC_STATUS_SUCCESS = 0x0,
+/* The client does not have sufficient privileges to execute the command */
+	MCC_STATUS_INSUFFICIENT_PRIVILEGES = 0x1,
+/* A parameter in the command was invalid. */
+	MCC_STATUS_INVALID_PARAMETER = 0x2,
+/* There are insufficient chip resources to execute the command */
+	MCC_STATUS_INSUFFICIENT_RESOURCES = 0x3,
+/* The command is completing because the queue was getting flushed */
+	MCC_STATUS_QUEUE_FLUSHING = 0x4,
+/* The command is completing with a DMA error */
+	MCC_STATUS_DMA_FAILED = 0x5
+};
+
+#define CQE_STATUS_COMPL_MASK		0xFFFF
+#define CQE_STATUS_COMPL_SHIFT		0	/* bits 0 - 15 */
+#define CQE_STATUS_EXTD_MASK		0xFFFF
+#define CQE_STATUS_EXTD_SHIFT		0	/* bits 0 - 15 */
+
+struct be_mcc_cq_entry {
+	u32 status;		/* dword 0 */
+	u32 tag0;		/* dword 1 */
+	u32 tag1;		/* dword 2 */
+	u32 flags;		/* dword 3 */
+};
+
+struct be_mcc_mailbox {
+	struct be_mcc_wrb wrb;
+	struct be_mcc_cq_entry cqe;
+};
+
+#define CMD_SUBSYSTEM_COMMON	0x1
+#define CMD_SUBSYSTEM_ETH 	0x3
+
+#define OPCODE_COMMON_NTWK_MAC_QUERY			1
+#define OPCODE_COMMON_NTWK_MAC_SET			2
+#define OPCODE_COMMON_NTWK_MULTICAST_SET		3
+#define OPCODE_COMMON_NTWK_VLAN_CONFIG  		4
+#define OPCODE_COMMON_NTWK_LINK_STATUS_QUERY		5
+#define OPCODE_COMMON_CQ_CREATE				12
+#define OPCODE_COMMON_EQ_CREATE				13
+#define OPCODE_COMMON_MCC_CREATE        		21
+#define OPCODE_COMMON_NTWK_RX_FILTER    		34
+#define OPCODE_COMMON_GET_FW_VERSION			35
+#define OPCODE_COMMON_SET_FLOW_CONTROL			36
+#define OPCODE_COMMON_GET_FLOW_CONTROL			37
+#define OPCODE_COMMON_SET_FRAME_SIZE			39
+#define OPCODE_COMMON_MODIFY_EQ_DELAY			41
+#define OPCODE_COMMON_FIRMWARE_CONFIG			42
+#define OPCODE_COMMON_NTWK_INTERFACE_CREATE 		50
+#define OPCODE_COMMON_NTWK_INTERFACE_DESTROY 		51
+#define OPCODE_COMMON_CQ_DESTROY        		54
+#define OPCODE_COMMON_EQ_DESTROY        		55
+#define OPCODE_COMMON_QUERY_FIRMWARE_CONFIG		58
+#define OPCODE_COMMON_NTWK_PMAC_ADD			59
+#define OPCODE_COMMON_NTWK_PMAC_DEL			60
+
+#define OPCODE_ETH_ACPI_CONFIG				2
+#define OPCODE_ETH_PROMISCUOUS				3
+#define OPCODE_ETH_GET_STATISTICS			4
+#define OPCODE_ETH_TX_CREATE				7
+#define OPCODE_ETH_RX_CREATE            		8
+#define OPCODE_ETH_TX_DESTROY           		9
+#define OPCODE_ETH_RX_DESTROY           		10
+
+struct be_cmd_req_hdr {
+	u8 opcode;		/* dword 0 */
+	u8 subsystem;		/* dword 0 */
+	u8 port_number;		/* dword 0 */
+	u8 domain;		/* dword 0 */
+	u32 timeout;		/* dword 1 */
+	u32 request_length;	/* dword 2 */
+	u32 rsvd;		/* dword 3 */
+};
+
+#define RESP_HDR_INFO_OPCODE_SHIFT	0	/* bits 0 - 7 */
+#define RESP_HDR_INFO_SUBSYS_SHIFT	8 	/* bits 8 - 15 */
+struct be_cmd_resp_hdr {
+	u32 info;		/* dword 0 */
+	u32 status;		/* dword 1 */
+	u32 response_length;	/* dword 2 */
+	u32 actual_resp_len;	/* dword 3 */
+};
+
+struct phys_addr {
+	u32 lo;
+	u32 hi;
+};
+
+/**************************
+ * BE Command definitions *
+ **************************/
+
+/* Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field */
+struct amap_eq_context {
+	u8 cidx[13];		/* dword 0*/
+	u8 rsvd0[3];		/* dword 0*/
+	u8 epidx[13];		/* dword 0*/
+	u8 valid;		/* dword 0*/
+	u8 rsvd1;		/* dword 0*/
+	u8 size;		/* dword 0*/
+	u8 pidx[13];		/* dword 1*/
+	u8 rsvd2[3];		/* dword 1*/
+	u8 pd[10];		/* dword 1*/
+	u8 count[3];		/* dword 1*/
+	u8 solevent;		/* dword 1*/
+	u8 stalled;		/* dword 1*/
+	u8 armed;		/* dword 1*/
+	u8 rsvd3[4];		/* dword 2*/
+	u8 func[8];		/* dword 2*/
+	u8 rsvd4;		/* dword 2*/
+	u8 delaymult[10];	/* dword 2*/
+	u8 rsvd5[2];		/* dword 2*/
+	u8 phase[2];		/* dword 2*/
+	u8 nodelay;		/* dword 2*/
+	u8 rsvd6[4];		/* dword 2*/
+	u8 rsvd7[32];		/* dword 3*/
+} __packed;
+
+struct be_cmd_req_eq_create {
+	struct be_cmd_req_hdr hdr;
+	u16 num_pages;		/* sword */
+	u16 rsvd0;		/* sword */
+	u8 context[sizeof(struct amap_eq_context) / 8];
+	struct phys_addr pages[8];
+} __packed;
+
+struct be_cmd_resp_eq_create {
+	struct be_cmd_resp_hdr resp_hdr;
+	u16 eq_id;		/* sword */
+	u16 rsvd0;		/* sword */
+} __packed;
+
+/******************** Mac query ***************************/
+enum {
+	MAC_ADDRESS_TYPE_STORAGE = 0x0,
+	MAC_ADDRESS_TYPE_NETWORK = 0x1,
+	MAC_ADDRESS_TYPE_PD = 0x2,
+	MAC_ADDRESS_TYPE_MANAGEMENT = 0x3
+};
+
+struct mac_addr {
+	u16 size_of_struct;
+	u8 addr[ETH_ALEN];
+} __packed;
+
+struct be_cmd_req_mac_query {
+	struct be_cmd_req_hdr hdr;
+	u8 type;
+	u8 permanent;
+	u16 if_id;
+} __packed;
+
+struct be_cmd_resp_mac_query {
+	struct be_cmd_resp_hdr hdr;
+	struct mac_addr mac;
+};
+
+/******************** PMac Add ***************************/
+struct be_cmd_req_pmac_add {
+	struct be_cmd_req_hdr hdr;
+	u32 if_id;
+	u8 mac_address[ETH_ALEN];
+	u8 rsvd0[2];
+} __packed;
+
+struct be_cmd_resp_pmac_add {
+	struct be_cmd_resp_hdr hdr;
+	u32 pmac_id;
+};
+
+/******************** PMac Del ***************************/
+struct be_cmd_req_pmac_del {
+	struct be_cmd_req_hdr hdr;
+	u32 if_id;
+	u32 pmac_id;
+};
+
+/******************** Create CQ ***************************/
+/* Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field */
+struct amap_cq_context {
+	u8 cidx[11];		/* dword 0*/
+	u8 rsvd0;		/* dword 0*/
+	u8 coalescwm[2];	/* dword 0*/
+	u8 nodelay;		/* dword 0*/
+	u8 epidx[11];		/* dword 0*/
+	u8 rsvd1;		/* dword 0*/
+	u8 count[2];		/* dword 0*/
+	u8 valid;		/* dword 0*/
+	u8 solevent;		/* dword 0*/
+	u8 eventable;		/* dword 0*/
+	u8 pidx[11];		/* dword 1*/
+	u8 rsvd2;		/* dword 1*/
+	u8 pd[10];		/* dword 1*/
+	u8 eqid[8];		/* dword 1*/
+	u8 stalled;		/* dword 1*/
+	u8 armed;		/* dword 1*/
+	u8 rsvd3[4];		/* dword 2*/
+	u8 func[8];		/* dword 2*/
+	u8 rsvd4[20];		/* dword 2*/
+	u8 rsvd5[32];		/* dword 3*/
+} __packed;
+
+struct be_cmd_req_cq_create {
+	struct be_cmd_req_hdr hdr;
+	u16 num_pages;
+	u16 rsvd0;
+	u8 context[sizeof(struct amap_cq_context) / 8];
+	struct phys_addr pages[8];
+} __packed;
+
+struct be_cmd_resp_cq_create {
+	struct be_cmd_resp_hdr hdr;
+	u16 cq_id;
+	u16 rsvd0;
+} __packed;
+
+/******************** Create TxQ ***************************/
+#define BE_ETH_TX_RING_TYPE_STANDARD    	2
+#define BE_ULP1_NUM				1
+
+/* Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field */
+struct amap_tx_context {
+	u8 rsvd0[16];		/* dword 0 */
+	u8 tx_ring_size[4];	/* dword 0 */
+	u8 rsvd1[26];		/* dword 0 */
+	u8 pci_func_id[8];	/* dword 1 */
+	u8 rsvd2[9];		/* dword 1 */
+	u8 ctx_valid;		/* dword 1 */
+	u8 cq_id_send[16];	/* dword 2 */
+	u8 rsvd3[16];		/* dword 2 */
+	u8 rsvd4[32];		/* dword 3 */
+	u8 rsvd5[32];		/* dword 4 */
+	u8 rsvd6[32];		/* dword 5 */
+	u8 rsvd7[32];		/* dword 6 */
+	u8 rsvd8[32];		/* dword 7 */
+	u8 rsvd9[32];		/* dword 8 */
+	u8 rsvd10[32];		/* dword 9 */
+	u8 rsvd11[32];		/* dword 10 */
+	u8 rsvd12[32];		/* dword 11 */
+	u8 rsvd13[32];		/* dword 12 */
+	u8 rsvd14[32];		/* dword 13 */
+	u8 rsvd15[32];		/* dword 14 */
+	u8 rsvd16[32];		/* dword 15 */
+} __packed;
+
+struct be_cmd_req_eth_tx_create {
+	struct be_cmd_req_hdr hdr;
+	u8 num_pages;
+	u8 ulp_num;
+	u8 type;
+	u8 bound_port;
+	u8 context[sizeof(struct amap_tx_context) / 8];
+	struct phys_addr pages[8];
+} __packed;
+
+struct be_cmd_resp_eth_tx_create {
+	struct be_cmd_resp_hdr hdr;
+	u16 cid;
+	u16 rsvd0;
+} __packed;
+
+/******************** Create RxQ ***************************/
+struct be_cmd_req_eth_rx_create {
+	struct be_cmd_req_hdr hdr;
+	u16 cq_id;
+	u8 frag_size;
+	u8 num_pages;
+	struct phys_addr pages[2];
+	u32 interface_id;
+	u16 max_frame_size;
+	u16 rsvd0;
+	u32 rss_queue;
+} __packed;
+
+struct be_cmd_resp_eth_rx_create {
+	struct be_cmd_resp_hdr hdr;
+	u16 id;
+	u8 cpu_id;
+	u8 rsvd0;
+} __packed;
+
+/******************** Q Destroy  ***************************/
+/* Type of Queue to be destroyed */
+enum {
+	QTYPE_EQ = 1,
+	QTYPE_CQ,
+	QTYPE_TXQ,
+	QTYPE_RXQ
+};
+
+struct be_cmd_req_q_destroy {
+	struct be_cmd_req_hdr hdr;
+	u16 id;
+	u16 bypass_flush;	/* valid only for rx q destroy */
+} __packed;
+
+/************ I/f Create (it's actually I/f Config Create)**********/
+
+/* Capability flags for the i/f */
+enum be_if_flags {
+	BE_IF_FLAGS_RSS = 0x4,
+	BE_IF_FLAGS_PROMISCUOUS = 0x8,
+	BE_IF_FLAGS_BROADCAST = 0x10,
+	BE_IF_FLAGS_UNTAGGED = 0x20,
+	BE_IF_FLAGS_ULP = 0x40,
+	BE_IF_FLAGS_VLAN_PROMISCUOUS = 0x80,
+	BE_IF_FLAGS_VLAN = 0x100,
+	BE_IF_FLAGS_MCAST_PROMISCUOUS = 0x200,
+	BE_IF_FLAGS_PASS_L2_ERRORS = 0x400,
+	BE_IF_FLAGS_PASS_L3L4_ERRORS = 0x800
+};
+
+/* An RX interface is an object with one or more MAC addresses and
+ * filtering capabilities. */
+struct be_cmd_req_if_create {
+	struct be_cmd_req_hdr hdr;
+	u32 version;		/* ignore currntly */
+	u32 capability_flags;
+	u32 enable_flags;
+	u8 mac_addr[ETH_ALEN];
+	u8 rsvd0;
+	u8 pmac_invalid; /* if set, don't attach the mac addr to the i/f */
+	u32 vlan_tag;	 /* not used currently */
+} __packed;
+
+struct be_cmd_resp_if_create {
+	struct be_cmd_resp_hdr hdr;
+	u32 interface_id;
+	u32 pmac_id;
+};
+
+/****** I/f Destroy(it's actually I/f Config Destroy )**********/
+struct be_cmd_req_if_destroy {
+	struct be_cmd_req_hdr hdr;
+	u32 interface_id;
+};
+
+/*************** HW Stats Get **********************************/
+struct be_port_rxf_stats {
+	u32 rx_bytes_lsd;	/* dword 0*/
+	u32 rx_bytes_msd;	/* dword 1*/
+	u32 rx_total_frames;	/* dword 2*/
+	u32 rx_unicast_frames;	/* dword 3*/
+	u32 rx_multicast_frames;	/* dword 4*/
+	u32 rx_broadcast_frames;	/* dword 5*/
+	u32 rx_crc_errors;	/* dword 6*/
+	u32 rx_alignment_symbol_errors;	/* dword 7*/
+	u32 rx_pause_frames;	/* dword 8*/
+	u32 rx_control_frames;	/* dword 9*/
+	u32 rx_in_range_errors;	/* dword 10*/
+	u32 rx_out_range_errors;	/* dword 11*/
+	u32 rx_frame_too_long;	/* dword 12*/
+	u32 rx_address_match_errors;	/* dword 13*/
+	u32 rx_vlan_mismatch;	/* dword 14*/
+	u32 rx_dropped_too_small;	/* dword 15*/
+	u32 rx_dropped_too_short;	/* dword 16*/
+	u32 rx_dropped_header_too_small;	/* dword 17*/
+	u32 rx_dropped_tcp_length;	/* dword 18*/
+	u32 rx_dropped_runt;	/* dword 19*/
+	u32 rx_64_byte_packets;	/* dword 20*/
+	u32 rx_65_127_byte_packets;	/* dword 21*/
+	u32 rx_128_256_byte_packets;	/* dword 22*/
+	u32 rx_256_511_byte_packets;	/* dword 23*/
+	u32 rx_512_1023_byte_packets;	/* dword 24*/
+	u32 rx_1024_1518_byte_packets;	/* dword 25*/
+	u32 rx_1519_2047_byte_packets;	/* dword 26*/
+	u32 rx_2048_4095_byte_packets;	/* dword 27*/
+	u32 rx_4096_8191_byte_packets;	/* dword 28*/
+	u32 rx_8192_9216_byte_packets;	/* dword 29*/
+	u32 rx_ip_checksum_errs;	/* dword 30*/
+	u32 rx_tcp_checksum_errs;	/* dword 31*/
+	u32 rx_udp_checksum_errs;	/* dword 32*/
+	u32 rx_non_rss_packets;	/* dword 33*/
+	u32 rx_ipv4_packets;	/* dword 34*/
+	u32 rx_ipv6_packets;	/* dword 35*/
+	u32 rx_ipv4_bytes_lsd;	/* dword 36*/
+	u32 rx_ipv4_bytes_msd;	/* dword 37*/
+	u32 rx_ipv6_bytes_lsd;	/* dword 38*/
+	u32 rx_ipv6_bytes_msd;	/* dword 39*/
+	u32 rx_chute1_packets;	/* dword 40*/
+	u32 rx_chute2_packets;	/* dword 41*/
+	u32 rx_chute3_packets;	/* dword 42*/
+	u32 rx_management_packets;	/* dword 43*/
+	u32 rx_switched_unicast_packets;	/* dword 44*/
+	u32 rx_switched_multicast_packets;	/* dword 45*/
+	u32 rx_switched_broadcast_packets;	/* dword 46*/
+	u32 tx_bytes_lsd;	/* dword 47*/
+	u32 tx_bytes_msd;	/* dword 48*/
+	u32 tx_unicastframes;	/* dword 49*/
+	u32 tx_multicastframes;	/* dword 50*/
+	u32 tx_broadcastframes;	/* dword 51*/
+	u32 tx_pauseframes;	/* dword 52*/
+	u32 tx_controlframes;	/* dword 53*/
+	u32 tx_64_byte_packets;	/* dword 54*/
+	u32 tx_65_127_byte_packets;	/* dword 55*/
+	u32 tx_128_256_byte_packets;	/* dword 56*/
+	u32 tx_256_511_byte_packets;	/* dword 57*/
+	u32 tx_512_1023_byte_packets;	/* dword 58*/
+	u32 tx_1024_1518_byte_packets;	/* dword 59*/
+	u32 tx_1519_2047_byte_packets;	/* dword 60*/
+	u32 tx_2048_4095_byte_packets;	/* dword 61*/
+	u32 tx_4096_8191_byte_packets;	/* dword 62*/
+	u32 tx_8192_9216_byte_packets;	/* dword 63*/
+	u32 rx_fifo_overflow;	/* dword 64*/
+	u32 rx_input_fifo_overflow;	/* dword 65*/
+};
+
+struct be_rxf_stats {
+	struct be_port_rxf_stats port[2];
+	u32 rx_drops_no_pbuf;	/* dword 132*/
+	u32 rx_drops_no_txpb;	/* dword 133*/
+	u32 rx_drops_no_erx_descr;	/* dword 134*/
+	u32 rx_drops_no_tpre_descr;	/* dword 135*/
+	u32 management_rx_port_packets;	/* dword 136*/
+	u32 management_rx_port_bytes;	/* dword 137*/
+	u32 management_rx_port_pause_frames;	/* dword 138*/
+	u32 management_rx_port_errors;	/* dword 139*/
+	u32 management_tx_port_packets;	/* dword 140*/
+	u32 management_tx_port_bytes;	/* dword 141*/
+	u32 management_tx_port_pause;	/* dword 142*/
+	u32 management_rx_port_rxfifo_overflow;	/* dword 143*/
+	u32 rx_drops_too_many_frags;	/* dword 144*/
+	u32 rx_drops_invalid_ring;	/* dword 145*/
+	u32 forwarded_packets;	/* dword 146*/
+	u32 rx_drops_mtu;	/* dword 147*/
+	u32 rsvd0[15];
+};
+
+struct be_erx_stats {
+	u32 rx_drops_no_fragments[44];     /* dwordS 0 to 43*/
+	u32 debug_wdma_sent_hold;          /* dword 44*/
+	u32 debug_wdma_pbfree_sent_hold;   /* dword 45*/
+	u32 debug_wdma_zerobyte_pbfree_sent_hold; /* dword 46*/
+	u32 debug_pmem_pbuf_dealloc;       /* dword 47*/
+};
+
+struct be_hw_stats {
+	struct be_rxf_stats rxf;
+	u32 rsvd[48];
+	struct be_erx_stats erx;
+};
+
+struct be_cmd_req_get_stats {
+	struct be_cmd_req_hdr hdr;
+	u8 rsvd[sizeof(struct be_hw_stats)];
+};
+
+struct be_cmd_resp_get_stats {
+	struct be_cmd_resp_hdr hdr;
+	struct be_hw_stats hw_stats;
+};
+
+struct be_cmd_req_vlan_config {
+	struct be_cmd_req_hdr hdr;
+	u8 interface_id;
+	u8 promiscuous;
+	u8 untagged;
+	u8 num_vlan;
+	u16 normal_vlan[64];
+} __packed;
+
+struct be_cmd_req_promiscuous_config {
+	struct be_cmd_req_hdr hdr;
+	u8 port0_promiscuous;
+	u8 port1_promiscuous;
+	u16 rsvd0;
+} __packed;
+
+struct macaddr {
+	u8 byte[ETH_ALEN];
+};
+
+struct be_cmd_req_mcast_mac_config {
+	struct be_cmd_req_hdr hdr;
+	u16 num_mac;
+	u8 promiscuous;
+	u8 interface_id;
+	struct macaddr mac[32];
+} __packed;
+
+static inline struct be_hw_stats *
+hw_stats_from_cmd(struct be_cmd_resp_get_stats *cmd)
+{
+	return &cmd->hw_stats;
+}
+
+/******************** Link Status Query *******************/
+struct be_cmd_req_link_status {
+	struct be_cmd_req_hdr hdr;
+	u32 rsvd;
+};
+
+struct be_link_info {
+	u8 duplex;
+	u8 speed;
+	u8 fault;
+};
+
+enum {
+	PHY_LINK_DUPLEX_NONE = 0x0,
+	PHY_LINK_DUPLEX_HALF = 0x1,
+	PHY_LINK_DUPLEX_FULL = 0x2
+};
+
+enum {
+	PHY_LINK_SPEED_ZERO = 0x0, 	/* => No link */
+	PHY_LINK_SPEED_10MBPS = 0x1,
+	PHY_LINK_SPEED_100MBPS = 0x2,
+	PHY_LINK_SPEED_1GBPS = 0x3,
+	PHY_LINK_SPEED_10GBPS = 0x4
+};
+
+struct be_cmd_resp_link_status {
+	struct be_cmd_resp_hdr hdr;
+	u8 physical_port;
+	u8 mac_duplex;
+	u8 mac_speed;
+	u8 mac_fault;
+	u8 mgmt_mac_duplex;
+	u8 mgmt_mac_speed;
+	u16 rsvd0;
+} __packed;
+
+/******************** Get FW Version *******************/
+#define FW_VER_LEN			32
+struct be_cmd_req_get_fw_version {
+	struct be_cmd_req_hdr hdr;
+	u8 rsvd0[FW_VER_LEN];
+	u8 rsvd1[FW_VER_LEN];
+} __packed;
+
+struct be_cmd_resp_get_fw_version {
+	struct be_cmd_resp_hdr hdr;
+	u8 firmware_version_string[FW_VER_LEN];
+	u8 fw_on_flash_version_string[FW_VER_LEN];
+} __packed;
+
+/******************** Set Flow Contrl *******************/
+struct be_cmd_req_set_flow_control {
+	struct be_cmd_req_hdr hdr;
+	u16 tx_flow_control;
+	u16 rx_flow_control;
+} __packed;
+
+/******************** Get Flow Contrl *******************/
+struct be_cmd_req_get_flow_control {
+	struct be_cmd_req_hdr hdr;
+	u32 rsvd;
+};
+
+struct be_cmd_resp_get_flow_control {
+	struct be_cmd_resp_hdr hdr;
+	u16 tx_flow_control;
+	u16 rx_flow_control;
+} __packed;
+
+/******************** Modify EQ Delay *******************/
+struct be_cmd_req_modify_eq_delay {
+	struct be_cmd_req_hdr hdr;
+	u32 num_eq;
+	struct {
+		u32 eq_id;
+		u32 phase;
+		u32 delay_multiplier;
+	} delay[8];
+} __packed;
+
+struct be_cmd_resp_modify_eq_delay {
+	struct be_cmd_resp_hdr hdr;
+	u32 rsvd0;
+} __packed;
+
+/******************** Get FW Config *******************/
+struct be_cmd_req_query_fw_cfg {
+	struct be_cmd_req_hdr hdr;
+	u32 rsvd[30];
+};
+
+struct be_cmd_resp_query_fw_cfg {
+	struct be_cmd_resp_hdr hdr;
+	u32 be_config_number;
+	u32 asic_revision;
+	u32 phys_port;
+	u32 function_mode;
+	u32 rsvd[26];
+};
+
+extern int be_pci_fnum_get(struct be_ctrl_info *ctrl);
+extern int be_cmd_POST(struct be_ctrl_info *ctrl);
+extern int be_cmd_mac_addr_query(struct be_ctrl_info *ctrl, u8 *mac_addr,
+			u8 type, bool permanent, u32 if_handle);
+extern int be_cmd_pmac_add(struct be_ctrl_info *ctrl, u8 *mac_addr,
+			u32 if_id, u32 *pmac_id);
+extern int be_cmd_pmac_del(struct be_ctrl_info *ctrl, u32 if_id, u32 pmac_id);
+extern int be_cmd_if_create(struct be_ctrl_info *ctrl, u32 if_flags, u8 *mac,
+			bool pmac_invalid, u32 *if_handle, u32 *pmac_id);
+extern int be_cmd_if_destroy(struct be_ctrl_info *ctrl, u32 if_handle);
+extern int be_cmd_eq_create(struct be_ctrl_info *ctrl,
+			struct be_queue_info *eq, int eq_delay);
+extern int be_cmd_cq_create(struct be_ctrl_info *ctrl,
+			struct be_queue_info *cq, struct be_queue_info *eq,
+			bool sol_evts, bool no_delay,
+			int num_cqe_dma_coalesce);
+extern int be_cmd_txq_create(struct be_ctrl_info *ctrl,
+			struct be_queue_info *txq,
+			struct be_queue_info *cq);
+extern int be_cmd_rxq_create(struct be_ctrl_info *ctrl,
+			struct be_queue_info *rxq, u16 cq_id,
+			u16 frag_size, u16 max_frame_size, u32 if_id,
+			u32 rss);
+extern int be_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q,
+			int type);
+extern int be_cmd_link_status_query(struct be_ctrl_info *ctrl,
+			struct be_link_info *link);
+extern int be_cmd_reset(struct be_ctrl_info *ctrl);
+extern int be_cmd_get_stats(struct be_ctrl_info *ctrl,
+			struct be_dma_mem *nonemb_cmd);
+extern int be_cmd_get_fw_ver(struct be_ctrl_info *ctrl, char *fw_ver);
+
+extern int be_cmd_modify_eqd(struct be_ctrl_info *ctrl, u32 eq_id, u32 eqd);
+extern int be_cmd_vlan_config(struct be_ctrl_info *ctrl, u32 if_id,
+			u16 *vtag_array, u32 num, bool untagged,
+			bool promiscuous);
+extern int be_cmd_promiscuous_config(struct be_ctrl_info *ctrl,
+			u8 port_num, bool en);
+extern int be_cmd_mcast_mac_set(struct be_ctrl_info *ctrl, u32 if_id,
+			u8 *mac_table, u32 num, bool promiscuous);
+extern int be_cmd_set_flow_control(struct be_ctrl_info *ctrl,
+			u32 tx_fc, u32 rx_fc);
+extern int be_cmd_get_flow_control(struct be_ctrl_info *ctrl,
+			u32 *tx_fc, u32 *rx_fc);
+extern int be_cmd_query_fw_cfg(struct be_ctrl_info *ctrl, u32 *port_num);

drivers/net/benet/be_ethtool.c

+/*
+ * Copyright (C) 2005 - 2009 ServerEngines
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.  The full GNU General
+ * Public License is included in this distribution in the file called COPYING.
+ *
+ * Contact Information:
+ * linux-drivers@serverengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ */
+
+#include "be.h"
+#include <linux/ethtool.h>
+
+struct be_ethtool_stat {
+	char desc[ETH_GSTRING_LEN];
+	int type;
+	int size;
+	int offset;
+};
+
+enum {NETSTAT, PORTSTAT, MISCSTAT, DRVSTAT, ERXSTAT};
+#define FIELDINFO(_struct, field) FIELD_SIZEOF(_struct, field), \
+					offsetof(_struct, field)
+#define NETSTAT_INFO(field) 	#field, NETSTAT,\
+					FIELDINFO(struct net_device_stats,\
+						field)
+#define DRVSTAT_INFO(field) 	#field, DRVSTAT,\
+					FIELDINFO(struct be_drvr_stats, field)
+#define MISCSTAT_INFO(field) 	#field, MISCSTAT,\
+					FIELDINFO(struct be_rxf_stats, field)
+#define PORTSTAT_INFO(field) 	#field, PORTSTAT,\
+					FIELDINFO(struct be_port_rxf_stats, \
+						field)
+#define ERXSTAT_INFO(field) 	#field, ERXSTAT,\
+					FIELDINFO(struct be_erx_stats, field)
+
+static const struct be_ethtool_stat et_stats[] = {
+	{NETSTAT_INFO(rx_packets)},
+	{NETSTAT_INFO(tx_packets)},
+	{NETSTAT_INFO(rx_bytes)},
+	{NETSTAT_INFO(tx_bytes)},
+	{NETSTAT_INFO(rx_errors)},
+	{NETSTAT_INFO(tx_errors)},
+	{NETSTAT_INFO(rx_dropped)},
+	{NETSTAT_INFO(tx_dropped)},
+	{DRVSTAT_INFO(be_tx_reqs)},
+	{DRVSTAT_INFO(be_tx_stops)},
+	{DRVSTAT_INFO(be_fwd_reqs)},
+	{DRVSTAT_INFO(be_tx_wrbs)},
+	{DRVSTAT_INFO(be_polls)},
+	{DRVSTAT_INFO(be_tx_events)},
+	{DRVSTAT_INFO(be_rx_events)},
+	{DRVSTAT_INFO(be_tx_compl)},
+	{DRVSTAT_INFO(be_rx_compl)},
+	{DRVSTAT_INFO(be_ethrx_post_fail)},
+	{DRVSTAT_INFO(be_802_3_dropped_frames)},
+	{DRVSTAT_INFO(be_802_3_malformed_frames)},
+	{DRVSTAT_INFO(be_tx_rate)},
+	{DRVSTAT_INFO(be_rx_rate)},
+	{PORTSTAT_INFO(rx_unicast_frames)},
+	{PORTSTAT_INFO(rx_multicast_frames)},
+	{PORTSTAT_INFO(rx_broadcast_frames)},
+	{PORTSTAT_INFO(rx_crc_errors)},
+	{PORTSTAT_INFO(rx_alignment_symbol_errors)},
+	{PORTSTAT_INFO(rx_pause_frames)},
+	{PORTSTAT_INFO(rx_control_frames)},
+	{PORTSTAT_INFO(rx_in_range_errors)},
+	{PORTSTAT_INFO(rx_out_range_errors)},
+	{PORTSTAT_INFO(rx_frame_too_long)},
+	{PORTSTAT_INFO(rx_address_match_errors)},
+	{PORTSTAT_INFO(rx_vlan_mismatch)},
+	{PORTSTAT_INFO(rx_dropped_too_small)},
+	{PORTSTAT_INFO(rx_dropped_too_short)},
+	{PORTSTAT_INFO(rx_dropped_header_too_small)},
+	{PORTSTAT_INFO(rx_dropped_tcp_length)},
+	{PORTSTAT_INFO(rx_dropped_runt)},
+	{PORTSTAT_INFO(rx_fifo_overflow)},
+	{PORTSTAT_INFO(rx_input_fifo_overflow)},
+	{PORTSTAT_INFO(rx_ip_checksum_errs)},
+	{PORTSTAT_INFO(rx_tcp_checksum_errs)},
+	{PORTSTAT_INFO(rx_udp_checksum_errs)},
+	{PORTSTAT_INFO(rx_non_rss_packets)},
+	{PORTSTAT_INFO(rx_ipv4_packets)},
+	{PORTSTAT_INFO(rx_ipv6_packets)},
+	{PORTSTAT_INFO(tx_unicastframes)},
+	{PORTSTAT_INFO(tx_multicastframes)},
+	{PORTSTAT_INFO(tx_broadcastframes)},
+	{PORTSTAT_INFO(tx_pauseframes)},
+	{PORTSTAT_INFO(tx_controlframes)},
+	{MISCSTAT_INFO(rx_drops_no_pbuf)},
+	{MISCSTAT_INFO(rx_drops_no_txpb)},
+	{MISCSTAT_INFO(rx_drops_no_erx_descr)},
+	{MISCSTAT_INFO(rx_drops_no_tpre_descr)},
+	{MISCSTAT_INFO(rx_drops_too_many_frags)},
+	{MISCSTAT_INFO(rx_drops_invalid_ring)},
+	{MISCSTAT_INFO(forwarded_packets)},
+	{MISCSTAT_INFO(rx_drops_mtu)},
+	{ERXSTAT_INFO(rx_drops_no_fragments)},
+};
+#define ETHTOOL_STATS_NUM ARRAY_SIZE(et_stats)
+
+static void
+be_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
+{
+	struct be_adapter *adapter = netdev_priv(netdev);
+
+	strcpy(drvinfo->driver, DRV_NAME);
+	strcpy(drvinfo->version, DRV_VER);
+	strncpy(drvinfo->fw_version, adapter->fw_ver, FW_VER_LEN);
+	strcpy(drvinfo->bus_info, pci_name(adapter->pdev));
+	drvinfo->testinfo_len = 0;
+	drvinfo->regdump_len = 0;
+	drvinfo->eedump_len = 0;
+}
+
+static int
+be_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *coalesce)
+{
+	struct be_adapter *adapter = netdev_priv(netdev);
+	struct be_eq_obj *rx_eq = &adapter->rx_eq;
+	struct be_eq_obj *tx_eq = &adapter->tx_eq;
+
+	coalesce->rx_max_coalesced_frames = adapter->max_rx_coal;
+
+	coalesce->rx_coalesce_usecs = rx_eq->cur_eqd;
+	coalesce->rx_coalesce_usecs_high = rx_eq->max_eqd;
+	coalesce->rx_coalesce_usecs_low = rx_eq->min_eqd;
+
+	coalesce->tx_coalesce_usecs = tx_eq->cur_eqd;
+	coalesce->tx_coalesce_usecs_high = tx_eq->max_eqd;
+	coalesce->tx_coalesce_usecs_low = tx_eq->min_eqd;
+
+	coalesce->use_adaptive_rx_coalesce = rx_eq->enable_aic;
+	coalesce->use_adaptive_tx_coalesce = tx_eq->enable_aic;
+
+	return 0;
+}
+
+/*
+ * This routine is used to set interrup coalescing delay *as well as*
+ * the number of pkts to coalesce for LRO.
+ */
+static int
+be_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *coalesce)
+{
+	struct be_adapter *adapter = netdev_priv(netdev);
+	struct be_ctrl_info *ctrl = &adapter->ctrl;
+	struct be_eq_obj *rx_eq = &adapter->rx_eq;
+	struct be_eq_obj *tx_eq = &adapter->tx_eq;
+	u32 tx_max, tx_min, tx_cur;
+	u32 rx_max, rx_min, rx_cur;
+	int status = 0;
+
+	if (coalesce->use_adaptive_tx_coalesce == 1)
+		return -EINVAL;
+
+	adapter->max_rx_coal = coalesce->rx_max_coalesced_frames;
+	if (adapter->max_rx_coal > MAX_SKB_FRAGS)
+		adapter->max_rx_coal = MAX_SKB_FRAGS - 1;
+
+	/* if AIC is being turned on now, start with an EQD of 0 */
+	if (rx_eq->enable_aic == 0 &&
+		coalesce->use_adaptive_rx_coalesce == 1) {
+		rx_eq->cur_eqd = 0;
+	}
+	rx_eq->enable_aic = coalesce->use_adaptive_rx_coalesce;
+
+	rx_max = coalesce->rx_coalesce_usecs_high;
+	rx_min = coalesce->rx_coalesce_usecs_low;
+	rx_cur = coalesce->rx_coalesce_usecs;
+
+	tx_max = coalesce->tx_coalesce_usecs_high;
+	tx_min = coalesce->tx_coalesce_usecs_low;
+	tx_cur = coalesce->tx_coalesce_usecs;
+
+	if (tx_cur > BE_MAX_EQD)
+		tx_cur = BE_MAX_EQD;
+	if (tx_eq->cur_eqd != tx_cur) {
+		status = be_cmd_modify_eqd(ctrl, tx_eq->q.id, tx_cur);
+		if (!status)
+			tx_eq->cur_eqd = tx_cur;
+	}
+
+	if (rx_eq->enable_aic) {
+		if (rx_max > BE_MAX_EQD)
+			rx_max = BE_MAX_EQD;
+		if (rx_min > rx_max)
+			rx_min = rx_max;
+		rx_eq->max_eqd = rx_max;
+		rx_eq->min_eqd = rx_min;
+		if (rx_eq->cur_eqd > rx_max)
+			rx_eq->cur_eqd = rx_max;
+		if (rx_eq->cur_eqd < rx_min)
+			rx_eq->cur_eqd = rx_min;
+	} else {
+		if (rx_cur > BE_MAX_EQD)
+			rx_cur = BE_MAX_EQD;
+		if (rx_eq->cur_eqd != rx_cur) {
+			status = be_cmd_modify_eqd(ctrl, rx_eq->q.id, rx_cur);
+			if (!status)
+				rx_eq->cur_eqd = rx_cur;
+		}
+	}
+	return 0;
+}
+
+static u32 be_get_rx_csum(struct net_device *netdev)
+{
+	struct be_adapter *adapter = netdev_priv(netdev);
+
+	return adapter->rx_csum;
+}
+
+static int be_set_rx_csum(struct net_device *netdev, uint32_t data)
+{
+	struct be_adapter *adapter = netdev_priv(netdev);
+
+	if (data)
+		adapter->rx_csum = true;
+	else
+		adapter->rx_csum = false;
+
+	return 0;
+}
+
+static void
+be_get_ethtool_stats(struct net_device *netdev,
+		struct ethtool_stats *stats, uint64_t *data)
+{
+	struct be_adapter *adapter = netdev_priv(netdev);
+	struct be_drvr_stats *drvr_stats = &adapter->stats.drvr_stats;
+	struct be_hw_stats *hw_stats = hw_stats_from_cmd(adapter->stats.cmd.va);
+	struct be_rxf_stats *rxf_stats = &hw_stats->rxf;
+	struct be_port_rxf_stats *port_stats =
+			&rxf_stats->port[adapter->port_num];
+	struct net_device_stats *net_stats = &adapter->stats.net_stats;
+	struct be_erx_stats *erx_stats = &hw_stats->erx;
+	void *p = NULL;
+	int i;
+
+	for (i = 0; i < ETHTOOL_STATS_NUM; i++) {
+		switch (et_stats[i].type) {
+		case NETSTAT:
+			p = net_stats;
+			break;
+		case DRVSTAT:
+			p = drvr_stats;
+			break;
+		case PORTSTAT:
+			p = port_stats;
+			break;
+		case MISCSTAT:
+			p = rxf_stats;
+			break;
+		case ERXSTAT: /* Currently only one ERX stat is provided */
+			p = (u32 *)erx_stats + adapter->rx_obj.q.id;
+			break;
+		}
+
+		p = (u8 *)p + et_stats[i].offset;
+		data[i] = (et_stats[i].size == sizeof(u64)) ?
+				*(u64 *)p: *(u32 *)p;
+	}
+
+	return;
+}
+
+static void
+be_get_stat_strings(struct net_device *netdev, uint32_t stringset,
+		uint8_t *data)
+{
+	int i;
+	switch (stringset) {
+	case ETH_SS_STATS:
+		for (i = 0; i < ETHTOOL_STATS_NUM; i++) {
+			memcpy(data, et_stats[i].desc, ETH_GSTRING_LEN);
+			data += ETH_GSTRING_LEN;
+		}
+		break;
+	}
+}
+
+static int be_get_stats_count(struct net_device *netdev)
+{
+	return ETHTOOL_STATS_NUM;
+}
+
+static int be_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
+{
+	ecmd->speed = SPEED_10000;
+	ecmd->duplex = DUPLEX_FULL;
+	ecmd->autoneg = AUTONEG_DISABLE;
+	return 0;
+}
+
+static void
+be_get_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
+{
+	struct be_adapter *adapter = netdev_priv(netdev);
+
+	ring->rx_max_pending = adapter->rx_obj.q.len;
+	ring->tx_max_pending = adapter->tx_obj.q.len;
+
+	ring->rx_pending = atomic_read(&adapter->rx_obj.q.used);
+	ring->tx_pending = atomic_read(&adapter->tx_obj.q.used);
+}
+
+static void
+be_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *ecmd)
+{
+	struct be_adapter *adapter = netdev_priv(netdev);
+
+	be_cmd_get_flow_control(&adapter->ctrl, &ecmd->tx_pause,
+		&ecmd->rx_pause);
+	ecmd->autoneg = AUTONEG_ENABLE;
+}
+
+static int
+be_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *ecmd)
+{
+	struct be_adapter *adapter = netdev_priv(netdev);
+	int status;
+
+	if (ecmd->autoneg != AUTONEG_ENABLE)
+		return -EINVAL;
+
+	status = be_cmd_set_flow_control(&adapter->ctrl, ecmd->tx_pause,
+			ecmd->rx_pause);
+	if (!status)
+		dev_warn(&adapter->pdev->dev, "Pause param set failed.\n");
+
+	return status;
+}
+
+struct ethtool_ops be_ethtool_ops = {
+	.get_settings = be_get_settings,
+	.get_drvinfo = be_get_drvinfo,
+	.get_link = ethtool_op_get_link,
+	.get_coalesce = be_get_coalesce,
+	.set_coalesce = be_set_coalesce,
+	.get_ringparam = be_get_ringparam,
+	.get_pauseparam = be_get_pauseparam,
+	.set_pauseparam = be_set_pauseparam,
+	.get_rx_csum = be_get_rx_csum,
+	.set_rx_csum = be_set_rx_csum,
+	.get_tx_csum = ethtool_op_get_tx_csum,
+	.set_tx_csum = ethtool_op_set_tx_csum,
+	.get_sg = ethtool_op_get_sg,
+	.set_sg = ethtool_op_set_sg,
+	.get_tso = ethtool_op_get_tso,
+	.set_tso = ethtool_op_set_tso,
+	.get_strings = be_get_stat_strings,
+	.get_stats_count = be_get_stats_count,
+	.get_ethtool_stats = be_get_ethtool_stats,
+};

drivers/net/benet/be_hw.h

+/*
+ * Copyright (C) 2005 - 2009 ServerEngines
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.  The full GNU General
+ * Public License is included in this distribution in the file called COPYING.
+ *
+ * Contact Information:
+ * linux-drivers@serverengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ */
+
+/********* Mailbox door bell *************/
+/* Used for driver communication with the FW.
+ * The software must write this register twice to post any command. First,
+ * it writes the register with hi=1 and the upper bits of the physical address
+ * for the MAILBOX structure. Software must poll the ready bit until this
+ * is acknowledged. Then, sotware writes the register with hi=0 with the lower
+ * bits in the address. It must poll the ready bit until the command is
+ * complete. Upon completion, the MAILBOX will contain a valid completion
+ * queue entry.
+ */
+#define MPU_MAILBOX_DB_OFFSET	0x160
+#define MPU_MAILBOX_DB_RDY_MASK	0x1 	/* bit 0 */
+#define MPU_MAILBOX_DB_HI_MASK	0x2	/* bit 1 */
+
+#define MPU_EP_CONTROL 		0
+
+/********** MPU semphore ******************/
+#define MPU_EP_SEMAPHORE_OFFSET 	0xac
+#define EP_SEMAPHORE_POST_STAGE_MASK	0x0000FFFF
+#define EP_SEMAPHORE_POST_ERR_MASK	0x1
+#define EP_SEMAPHORE_POST_ERR_SHIFT	31
+/* MPU semphore POST stage values */
+#define POST_STAGE_AWAITING_HOST_RDY 	0x1 /* FW awaiting goahead from host */
+#define POST_STAGE_HOST_RDY 		0x2 /* Host has given go-ahed to FW */
+#define POST_STAGE_BE_RESET		0x3 /* Host wants to reset chip */
+#define POST_STAGE_ARMFW_RDY		0xc000	/* FW is done with POST */
+
+/********* Memory BAR register ************/
+#define PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET 	0xfc
+/* Host Interrupt Enable, if set interrupts are enabled although "PCI Interrupt
+ * Disable" may still globally block interrupts in addition to individual
+ * interrupt masks; a mechanism for the device driver to block all interrupts
+ * atomically without having to arbitrate for the PCI Interrupt Disable bit
+ * with the OS.
+ */
+#define MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK	(1 << 29) /* bit 29 */
+/* PCI physical function number */
+#define MEMBAR_CTRL_INT_CTRL_PFUNC_MASK  	0x7 	/* bits 26 - 28 */
+#define MEMBAR_CTRL_INT_CTRL_PFUNC_SHIFT	26
+
+/********* Event Q door bell *************/
+#define DB_EQ_OFFSET			DB_CQ_OFFSET
+#define DB_EQ_RING_ID_MASK		0x1FF	/* bits 0 - 8 */
+/* Clear the interrupt for this eq */
+#define DB_EQ_CLR_SHIFT			(9)	/* bit 9 */
+/* Must be 1 */
+#define DB_EQ_EVNT_SHIFT			(10)	/* bit 10 */
+/* Number of event entries processed */
+#define DB_EQ_NUM_POPPED_SHIFT		(16)	/* bits 16 - 28 */
+/* Rearm bit */
+#define DB_EQ_REARM_SHIFT		(29)	/* bit 29 */
+
+/********* Compl Q door bell *************/
+#define DB_CQ_OFFSET 			0x120
+#define DB_CQ_RING_ID_MASK		0x3FF	/* bits 0 - 9 */
+/* Number of event entries processed */
+#define DB_CQ_NUM_POPPED_SHIFT		(16) 	/* bits 16 - 28 */
+/* Rearm bit */
+#define DB_CQ_REARM_SHIFT		(29) 	/* bit 29 */
+
+/********** TX ULP door bell *************/
+#define DB_TXULP1_OFFSET		0x60
+#define DB_TXULP_RING_ID_MASK		0x7FF	/* bits 0 - 10 */
+/* Number of tx entries posted */
+#define DB_TXULP_NUM_POSTED_SHIFT	(16)	/* bits 16 - 29 */
+#define DB_TXULP_NUM_POSTED_MASK	0x3FFF	/* bits 16 - 29 */
+
+/********** RQ(erx) door bell ************/
+#define DB_RQ_OFFSET 			0x100
+#define DB_RQ_RING_ID_MASK		0x3FF	/* bits 0 - 9 */
+/* Number of rx frags posted */
+#define DB_RQ_NUM_POSTED_SHIFT		(24)	/* bits 24 - 31 */
+
+/*
+ * BE descriptors: host memory data structures whose formats
+ * are hardwired in BE silicon.
+ */
+/* Event Queue Descriptor */
+#define EQ_ENTRY_VALID_MASK 		0x1	/* bit 0 */
+#define EQ_ENTRY_RES_ID_MASK 		0xFFFF	/* bits 16 - 31 */
+#define EQ_ENTRY_RES_ID_SHIFT 		16
+struct be_eq_entry {
+	u32 evt;
+};
+
+/* TX Queue Descriptor */
+#define ETH_WRB_FRAG_LEN_MASK		0xFFFF
+struct be_eth_wrb {
+	u32 frag_pa_hi;		/* dword 0 */
+	u32 frag_pa_lo;		/* dword 1 */
+	u32 rsvd0;		/* dword 2 */
+	u32 frag_len;		/* dword 3: bits 0 - 15 */
+} __packed;
+
+/* Pseudo amap definition for eth_hdr_wrb in which each bit of the
+ * actual structure is defined as a byte : used to calculate
+ * offset/shift/mask of each field */
+struct amap_eth_hdr_wrb {
+	u8 rsvd0[32];		/* dword 0 */
+	u8 rsvd1[32];		/* dword 1 */
+	u8 complete;		/* dword 2 */
+	u8 event;
+	u8 crc;
+	u8 forward;
+	u8 ipsec;
+	u8 mgmt;
+	u8 ipcs;
+	u8 udpcs;
+	u8 tcpcs;
+	u8 lso;
+	u8 vlan;
+	u8 gso[2];
+	u8 num_wrb[5];
+	u8 lso_mss[14];
+	u8 len[16];		/* dword 3 */
+	u8 vlan_tag[16];
+} __packed;
+
+struct be_eth_hdr_wrb {
+	u32 dw[4];
+};
+
+/* TX Compl Queue Descriptor */
+
+/* Pseudo amap definition for eth_tx_compl in which each bit of the
+ * actual structure is defined as a byte: used to calculate
+ * offset/shift/mask of each field */
+struct amap_eth_tx_compl {
+	u8 wrb_index[16];	/* dword 0 */
+	u8 ct[2]; 		/* dword 0 */
+	u8 port[2];		/* dword 0 */
+	u8 rsvd0[8];		/* dword 0 */
+	u8 status[4];		/* dword 0 */
+	u8 user_bytes[16];	/* dword 1 */
+	u8 nwh_bytes[8];	/* dword 1 */
+	u8 lso;			/* dword 1 */
+	u8 cast_enc[2];		/* dword 1 */
+	u8 rsvd1[5];		/* dword 1 */
+	u8 rsvd2[32];		/* dword 2 */
+	u8 pkts[16];		/* dword 3 */
+	u8 ringid[11];		/* dword 3 */
+	u8 hash_val[4];		/* dword 3 */
+	u8 valid;		/* dword 3 */
+} __packed;
+
+struct be_eth_tx_compl {
+	u32 dw[4];
+};
+
+/* RX Queue Descriptor */
+struct be_eth_rx_d {
+	u32 fragpa_hi;
+	u32 fragpa_lo;
+};
+
+/* RX Compl Queue Descriptor */
+
+/* Pseudo amap definition for eth_rx_compl in which each bit of the
+ * actual structure is defined as a byte: used to calculate
+ * offset/shift/mask of each field */
+struct amap_eth_rx_compl {
+	u8 vlan_tag[16];	/* dword 0 */
+	u8 pktsize[14];		/* dword 0 */
+	u8 port;		/* dword 0 */
+	u8 ip_opt;		/* dword 0 */
+	u8 err;			/* dword 1 */
+	u8 rsshp;		/* dword 1 */
+	u8 ipf;			/* dword 1 */
+	u8 tcpf;		/* dword 1 */
+	u8 udpf;		/* dword 1 */
+	u8 ipcksm;		/* dword 1 */
+	u8 l4_cksm;		/* dword 1 */
+	u8 ip_version;		/* dword 1 */
+	u8 macdst[6];		/* dword 1 */
+	u8 vtp;			/* dword 1 */
+	u8 rsvd0;		/* dword 1 */
+	u8 fragndx[10];		/* dword 1 */
+	u8 ct[2];		/* dword 1 */
+	u8 sw;			/* dword 1 */
+	u8 numfrags[3];		/* dword 1 */
+	u8 rss_flush;		/* dword 2 */
+	u8 cast_enc[2];		/* dword 2 */
+	u8 qnq;			/* dword 2 */
+	u8 rss_bank;		/* dword 2 */
+	u8 rsvd1[23];		/* dword 2 */
+	u8 lro_pkt;		/* dword 2 */
+	u8 rsvd2[2];		/* dword 2 */
+	u8 valid;		/* dword 2 */
+	u8 rsshash[32];		/* dword 3 */
+} __packed;
+
+struct be_eth_rx_compl {
+	u32 dw[4];
+};