Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1745 commits)
  dp83640: free packet queues on remove
  dp83640: use proper function to free transmit time stamping packets
  ipv6: Do not use routes from locally generated RAs
  |PATCH net-next] tg3: add tx_dropped counter
  be2net: don't create multiple RX/TX rings in multi channel mode
  be2net: don't create multiple TXQs in BE2
  be2net: refactor VF setup/teardown code into be_vf_setup/clear()
  be2net: add vlan/rx-mode/flow-control config to be_setup()
  net_sched: cls_flow: use skb_header_pointer()
  ipv4: avoid useless call of the function check_peer_pmtu
  TCP: remove TCP_DEBUG
  net: Fix driver name for mdio-gpio.c
  ipv4: tcp: fix TOS value in ACK messages sent from TIME_WAIT
  rtnetlink: Add missing manual netlink notification in dev_change_net_namespaces
  ipv4: fix ipsec forward performance regression
  jme: fix irq storm after suspend/resume
  route: fix ICMP redirect validation
  net: hold sock reference while processing tx timestamps
  tcp: md5: add more const attributes
  Add ethtool -g support to virtio_net
  ...

Fix up conflicts in:
 - drivers/net/Kconfig:
	The split-up generated a trivial conflict with removal of a
	stale reference to Documentation/networking/net-modules.txt.
	Remove it from the new location instead.
 - fs/sysfs/dir.c:
	Fairly nasty conflicts with the sysfs rb-tree usage, conflicting
	with Eric Biederman's changes for tagged directories.

1 files changed, 532 insertions, 0 deletions

diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
new file mode 100644
index 00000000000..644e8fed836
--- /dev/null
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -0,0 +1,532 @@
+/*
+ * Copyright (C) 2005 - 2011 Emulex
+ * 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@emulex.com
+ *
+ * Emulex
+ * 3333 Susan Street
+ * Costa Mesa, CA 92626
+ */
+
+#ifndef BE_H
+#define BE_H
+
+#include <linux/pci.h>
+#include <linux/etherdevice.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/firmware.h>
+#include <linux/slab.h>
+#include <linux/u64_stats_sync.h>
+
+#include "be_hw.h"
+
+#define DRV_VER			"4.0.100u"
+#define DRV_NAME		"be2net"
+#define BE_NAME			"ServerEngines BladeEngine2 10Gbps NIC"
+#define BE3_NAME		"ServerEngines BladeEngine3 10Gbps NIC"
+#define OC_NAME			"Emulex OneConnect 10Gbps NIC"
+#define OC_NAME_BE		OC_NAME	"(be3)"
+#define OC_NAME_LANCER		OC_NAME "(Lancer)"
+#define DRV_DESC		"ServerEngines BladeEngine 10Gbps NIC Driver"
+
+#define BE_VENDOR_ID 		0x19a2
+#define EMULEX_VENDOR_ID	0x10df
+#define BE_DEVICE_ID1		0x211
+#define BE_DEVICE_ID2		0x221
+#define OC_DEVICE_ID1		0x700	/* Device Id for BE2 cards */
+#define OC_DEVICE_ID2		0x710	/* Device Id for BE3 cards */
+#define OC_DEVICE_ID3		0xe220	/* Device id for Lancer cards */
+#define OC_DEVICE_ID4           0xe228   /* Device id for VF in Lancer */
+
+static inline char *nic_name(struct pci_dev *pdev)
+{
+	switch (pdev->device) {
+	case OC_DEVICE_ID1:
+		return OC_NAME;
+	case OC_DEVICE_ID2:
+		return OC_NAME_BE;
+	case OC_DEVICE_ID3:
+	case OC_DEVICE_ID4:
+		return OC_NAME_LANCER;
+	case BE_DEVICE_ID2:
+		return BE3_NAME;
+	default:
+		return BE_NAME;
+	}
+}
+
+/* Number of bytes of an RX frame that are copied to skb->data */
+#define BE_HDR_LEN		((u16) 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		128	/* total size not to exceed 8 pages */
+#define MCC_CQ_LEN		256
+
+#define MAX_RSS_QS		4	/* BE limit is 4 queues/port */
+#define MAX_RX_QS		(MAX_RSS_QS + 1) /* RSS qs + 1 def Rx */
+#define MAX_TX_QS		8
+#define BE_MAX_MSIX_VECTORS	(MAX_RX_QS + 1)/* RX + TX */
+#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 FW_VER_LEN		32
+
+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 */
+};
+
+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);
+}
+
+static inline void *queue_head_node(struct be_queue_info *q)
+{
+	return q->dma_mem.va + q->head * q->entry_size;
+}
+
+static inline void *queue_tail_node(struct be_queue_info *q)
+{
+	return q->dma_mem.va + q->tail * q->entry_size;
+}
+
+static inline void *queue_index_node(struct be_queue_info *q, u16 index)
+{
+	return q->dma_mem.va + index * q->entry_size;
+}
+
+static inline void queue_head_inc(struct be_queue_info *q)
+{
+	index_inc(&q->head, q->len);
+}
+
+static inline void queue_tail_inc(struct be_queue_info *q)
+{
+	index_inc(&q->tail, q->len);
+}
+
+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 */
+	u8  eq_idx;
+
+	struct napi_struct napi;
+};
+
+struct be_mcc_obj {
+	struct be_queue_info q;
+	struct be_queue_info cq;
+	bool rearm_cq;
+};
+
+struct be_tx_stats {
+	u64 tx_bytes;
+	u64 tx_pkts;
+	u64 tx_reqs;
+	u64 tx_wrbs;
+	u64 tx_compl;
+	ulong tx_jiffies;
+	u32 tx_stops;
+	struct u64_stats_sync sync;
+	struct u64_stats_sync sync_compl;
+};
+
+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 be_tx_stats stats;
+};
+
+/* Struct to remember the pages posted for rx frags */
+struct be_rx_page_info {
+	struct page *page;
+	DEFINE_DMA_UNMAP_ADDR(bus);
+	u16 page_offset;
+	bool last_page_user;
+};
+
+struct be_rx_stats {
+	u64 rx_bytes;
+	u64 rx_pkts;
+	u64 rx_pkts_prev;
+	ulong rx_jiffies;
+	u32 rx_drops_no_skbs;	/* skb allocation errors */
+	u32 rx_drops_no_frags;	/* HW has no fetched frags */
+	u32 rx_post_fail;	/* page post alloc failures */
+	u32 rx_polls;		/* NAPI calls */
+	u32 rx_events;
+	u32 rx_compl;
+	u32 rx_mcast_pkts;
+	u32 rx_compl_err;	/* completions with err set */
+	u32 rx_pps;		/* pkts per second */
+	struct u64_stats_sync sync;
+};
+
+struct be_rx_compl_info {
+	u32 rss_hash;
+	u16 vlan_tag;
+	u16 pkt_size;
+	u16 rxq_idx;
+	u16 port;
+	u8 vlanf;
+	u8 num_rcvd;
+	u8 err;
+	u8 ipf;
+	u8 tcpf;
+	u8 udpf;
+	u8 ip_csum;
+	u8 l4_csum;
+	u8 ipv6;
+	u8 vtm;
+	u8 pkt_type;
+};
+
+struct be_rx_obj {
+	struct be_adapter *adapter;
+	struct be_queue_info q;
+	struct be_queue_info cq;
+	struct be_rx_compl_info rxcp;
+	struct be_rx_page_info page_info_tbl[RX_Q_LEN];
+	struct be_eq_obj rx_eq;
+	struct be_rx_stats stats;
+	u8 rss_id;
+	bool rx_post_starved;	/* Zero rx frags have been posted to BE */
+	u32 cache_line_barrier[16];
+};
+
+struct be_drv_stats {
+	u32 be_on_die_temperature;
+	u32 tx_events;
+	u32 eth_red_drops;
+	u32 rx_drops_no_pbuf;
+	u32 rx_drops_no_txpb;
+	u32 rx_drops_no_erx_descr;
+	u32 rx_drops_no_tpre_descr;
+	u32 rx_drops_too_many_frags;
+	u32 rx_drops_invalid_ring;
+	u32 forwarded_packets;
+	u32 rx_drops_mtu;
+	u32 rx_crc_errors;
+	u32 rx_alignment_symbol_errors;
+	u32 rx_pause_frames;
+	u32 rx_priority_pause_frames;
+	u32 rx_control_frames;
+	u32 rx_in_range_errors;
+	u32 rx_out_range_errors;
+	u32 rx_frame_too_long;
+	u32 rx_address_match_errors;
+	u32 rx_dropped_too_small;
+	u32 rx_dropped_too_short;
+	u32 rx_dropped_header_too_small;
+	u32 rx_dropped_tcp_length;
+	u32 rx_dropped_runt;
+	u32 rx_ip_checksum_errs;
+	u32 rx_tcp_checksum_errs;
+	u32 rx_udp_checksum_errs;
+	u32 tx_pauseframes;
+	u32 tx_priority_pauseframes;
+	u32 tx_controlframes;
+	u32 rxpp_fifo_overflow_drop;
+	u32 rx_input_fifo_overflow_drop;
+	u32 pmem_fifo_overflow_drop;
+	u32 jabber_events;
+};
+
+struct be_vf_cfg {
+	unsigned char vf_mac_addr[ETH_ALEN];
+	u32 vf_if_handle;
+	u32 vf_pmac_id;
+	u16 vf_vlan_tag;
+	u32 vf_tx_rate;
+};
+
+#define BE_INVALID_PMAC_ID		0xffffffff
+
+struct be_adapter {
+	struct pci_dev *pdev;
+	struct net_device *netdev;
+
+	u8 __iomem *csr;
+	u8 __iomem *db;		/* Door Bell */
+
+	struct mutex mbox_lock; /* For serializing mbox 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;
+
+	struct be_mcc_obj mcc_obj;
+	spinlock_t mcc_lock;	/* For serializing mcc cmds to BE card */
+	spinlock_t mcc_cq_lock;
+
+	struct msix_entry msix_entries[BE_MAX_MSIX_VECTORS];
+	u32 num_msix_vec;
+	bool isr_registered;
+
+	/* TX Rings */
+	struct be_eq_obj tx_eq;
+	struct be_tx_obj tx_obj[MAX_TX_QS];
+	u8 num_tx_qs;
+
+	u32 cache_line_break[8];
+
+	/* Rx rings */
+	struct be_rx_obj rx_obj[MAX_RX_QS];
+	u32 num_rx_qs;
+	u32 big_page_size;	/* Compounded page size shared by rx wrbs */
+
+	u8 eq_next_idx;
+	struct be_drv_stats drv_stats;
+
+	u16 vlans_added;
+	u16 max_vlans;	/* Number of vlans supported */
+	u8 vlan_tag[VLAN_N_VID];
+	u8 vlan_prio_bmap;	/* Available Priority BitMap */
+	u16 recommended_prio;	/* Recommended Priority */
+	struct be_dma_mem rx_filter; /* Cmd DMA mem for rx-filter */
+
+	struct be_dma_mem stats_cmd;
+	/* Work queue used to perform periodic tasks like getting statistics */
+	struct delayed_work work;
+	u16 work_counter;
+
+	/* Ethtool knobs and info */
+	char fw_ver[FW_VER_LEN];
+	u32 if_handle;		/* Used to configure filtering */
+	u32 pmac_id;		/* MAC addr handle used by BE card */
+	u32 beacon_state;	/* for set_phys_id */
+
+	bool eeh_err;
+	u32 port_num;
+	bool promiscuous;
+	bool wol;
+	u32 function_mode;
+	u32 function_caps;
+	u32 rx_fc;		/* Rx flow control */
+	u32 tx_fc;		/* Tx flow control */
+	bool ue_detected;
+	bool stats_cmd_sent;
+	int link_speed;
+	u8 port_type;
+	u8 transceiver;
+	u8 autoneg;
+	u8 generation;		/* BladeEngine ASIC generation */
+	u32 flash_status;
+	struct completion flash_compl;
+
+	bool be3_native;
+	bool sriov_enabled;
+	struct be_vf_cfg *vf_cfg;
+	u8 is_virtfn;
+	u32 sli_family;
+	u8 hba_port_num;
+	u16 pvid;
+};
+
+#define be_physfn(adapter) (!adapter->is_virtfn)
+
+/* BladeEngine Generation numbers */
+#define BE_GEN2 2
+#define BE_GEN3 3
+
+#define ON				1
+#define OFF				0
+#define lancer_chip(adapter)	((adapter->pdev->device == OC_DEVICE_ID3) || \
+				 (adapter->pdev->device == OC_DEVICE_ID4))
+
+extern const struct ethtool_ops be_ethtool_ops;
+
+#define msix_enabled(adapter)		(adapter->num_msix_vec > 0)
+#define tx_stats(txo)			(&txo->stats)
+#define rx_stats(rxo)			(&rxo->stats)
+
+#define BE_SET_NETDEV_OPS(netdev, ops)	(netdev->netdev_ops = ops)
+
+#define for_all_rx_queues(adapter, rxo, i)				\
+	for (i = 0, rxo = &adapter->rx_obj[i]; i < adapter->num_rx_qs;	\
+		i++, rxo++)
+
+/* Just skip the first default non-rss queue */
+#define for_all_rss_queues(adapter, rxo, i)				\
+	for (i = 0, rxo = &adapter->rx_obj[i+1]; i < (adapter->num_rx_qs - 1);\
+		i++, rxo++)
+
+#define for_all_tx_queues(adapter, txo, i)				\
+	for (i = 0, txo = &adapter->tx_obj[i]; i < adapter->num_tx_qs;	\
+		i++, txo++)
+
+#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;
+}
+
+static inline void be_check_sriov_fn_type(struct be_adapter *adapter)
+{
+	u32 sli_intf;
+
+	pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
+	adapter->is_virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;
+}
+
+static inline void be_vf_eth_addr_generate(struct be_adapter *adapter, u8 *mac)
+{
+	u32 addr;
+
+	addr = jhash(adapter->netdev->dev_addr, ETH_ALEN, 0);
+
+	mac[5] = (u8)(addr & 0xFF);
+	mac[4] = (u8)((addr >> 8) & 0xFF);
+	mac[3] = (u8)((addr >> 16) & 0xFF);
+	/* Use the OUI from the current MAC address */
+	memcpy(mac, adapter->netdev->dev_addr, 3);
+}
+
+static inline bool be_multi_rxq(const struct be_adapter *adapter)
+{
+	return adapter->num_rx_qs > 1;
+}
+
+extern void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm,
+		u16 num_popped);
+extern void be_link_status_update(struct be_adapter *adapter, u32 link_status);
+extern void be_parse_stats(struct be_adapter *adapter);
+extern int be_load_fw(struct be_adapter *adapter, u8 *func);
+#endif				/* BE_H */