1 files changed, 532 insertions, 0 deletions

diff --git a/drivers/net/benet/be.h b/drivers/net/benet/be.h
new file mode 100644
index 00000000000..c85768cd1b1
--- /dev/null
+++ b/drivers/net/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 "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_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 {
+        u32 be_tx_reqs;         /* number of TX requests initiated */
+        u32 be_tx_stops;        /* number of times TX Q was stopped */
+        u32 be_tx_wrbs;         /* number of tx WRBs used */
+        u32 be_tx_compl;        /* number of tx completion entries processed */
+        ulong be_tx_jiffies;
+        u64 be_tx_bytes;
+        u64 be_tx_bytes_prev;
+        u64 be_tx_pkts;
+        u32 be_tx_rate;
+};
+
+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 {
+        u32 rx_post_fail;/* number of ethrx buffer alloc failures */
+        u32 rx_polls;   /* number of times NAPI called poll function */
+        u32 rx_events;  /* number of ucast rx completion events  */
+        u32 rx_compl;   /* number of rx completion entries processed */
+        ulong rx_dropped; /* number of skb allocation errors */
+        ulong rx_jiffies;
+        u64 rx_bytes;
+        u64 rx_bytes_prev;
+        u64 rx_pkts;
+        u32 rx_rate;
+        u32 rx_mcast_pkts;
+        u32 rxcp_err;   /* Num rx completion entries w/ err set. */
+        ulong rx_fps_jiffies;   /* jiffies at last FPS calc */
+        u32 rx_frags;
+        u32 prev_rx_frags;
+        u32 rx_fps;             /* Rx frags per second */
+};
+
+struct be_rx_compl_info {
+        u32 rss_hash;
+        u16 vlan_tag;
+        u16 pkt_size;
+        u16 rxq_idx;
+        u16 mac_id;
+        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 {
+        u8 be_on_die_temperature;
+        u64 be_tx_events;
+        u64 eth_red_drops;
+        u64 rx_drops_no_pbuf;
+        u64 rx_drops_no_txpb;
+        u64 rx_drops_no_erx_descr;
+        u64 rx_drops_no_tpre_descr;
+        u64 rx_drops_too_many_frags;
+        u64 rx_drops_invalid_ring;
+        u64 forwarded_packets;
+        u64 rx_drops_mtu;
+        u64 rx_crc_errors;
+        u64 rx_alignment_symbol_errors;
+        u64 rx_pause_frames;
+        u64 rx_priority_pause_frames;
+        u64 rx_control_frames;
+        u64 rx_in_range_errors;
+        u64 rx_out_range_errors;
+        u64 rx_frame_too_long;
+        u64 rx_address_match_errors;
+        u64 rx_dropped_too_small;
+        u64 rx_dropped_too_short;
+        u64 rx_dropped_header_too_small;
+        u64 rx_dropped_tcp_length;
+        u64 rx_dropped_runt;
+        u64 rx_ip_checksum_errs;
+        u64 rx_tcp_checksum_errs;
+        u64 rx_udp_checksum_errs;
+        u64 rx_switched_unicast_packets;
+        u64 rx_switched_multicast_packets;
+        u64 rx_switched_broadcast_packets;
+        u64 tx_pauseframes;
+        u64 tx_priority_pauseframes;
+        u64 tx_controlframes;
+        u64 rxpp_fifo_overflow_drop;
+        u64 rx_input_fifo_overflow_drop;
+        u64 pmem_fifo_overflow_drop;
+        u64 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 */
+        u8 __iomem *pcicfg;     /* PCI config space */
+
+        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 mc_cmd_mem;
+
+        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;
+        bool link_up;
+        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 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, bool link_up);
+extern void netdev_stats_update(struct be_adapter *adapter);
+extern void be_parse_stats(struct be_adapter *adapter);
+extern int be_load_fw(struct be_adapter *adapter, u8 *func);
+#endif                          /* BE_H */