1 files changed, 557 insertions, 0 deletions

diff --git a/drivers/net/vxge/vxge-main.h b/drivers/net/vxge/vxge-main.h
new file mode 100644
index 000000000000..9704b2bd4320
--- /dev/null
+++ b/drivers/net/vxge/vxge-main.h
@@ -0,0 +1,557 @@
+/******************************************************************************
+ * This software may be used and distributed according to the terms of
+ * the GNU General Public License (GPL), incorporated herein by reference.
+ * Drivers based on or derived from this code fall under the GPL and must
+ * retain the authorship, copyright and license notice.  This file is not
+ * a complete program and may only be used when the entire operating
+ * system is licensed under the GPL.
+ * See the file COPYING in this distribution for more information.
+ *
+ * vxge-main.h: Driver for Neterion Inc's X3100 Series 10GbE PCIe I/O
+ *              Virtualized Server Adapter.
+ * Copyright(c) 2002-2009 Neterion Inc.
+ ******************************************************************************/
+#ifndef VXGE_MAIN_H
+#define VXGE_MAIN_H
+
+#include "vxge-traffic.h"
+#include "vxge-config.h"
+#include "vxge-version.h"
+#include <linux/list.h>
+
+#define VXGE_DRIVER_NAME                "vxge"
+#define VXGE_DRIVER_VENDOR              "Neterion, Inc"
+#define VXGE_DRIVER_VERSION_MAJOR 0
+
+#define DRV_VERSION     VXGE_VERSION_MAJOR"."VXGE_VERSION_MINOR"."\
+        VXGE_VERSION_FIX"."VXGE_VERSION_BUILD"-"\
+        VXGE_VERSION_FOR
+
+#define PCI_DEVICE_ID_TITAN_WIN         0x5733
+#define PCI_DEVICE_ID_TITAN_UNI         0x5833
+#define VXGE_USE_DEFAULT                0xffffffff
+#define VXGE_HW_VPATH_MSIX_ACTIVE       4
+#define VXGE_HW_RXSYNC_FREQ_CNT         4
+#define VXGE_LL_WATCH_DOG_TIMEOUT       (15 * HZ)
+#define VXGE_LL_RX_COPY_THRESHOLD       256
+#define VXGE_DEF_FIFO_LENGTH            84
+
+#define NO_STEERING             0
+#define PORT_STEERING           0x1
+#define RTH_STEERING            0x2
+#define RX_TOS_STEERING         0x3
+#define RX_VLAN_STEERING        0x4
+#define RTH_BUCKET_SIZE         4
+
+#define TX_PRIORITY_STEERING    1
+#define TX_VLAN_STEERING        2
+#define TX_PORT_STEERING        3
+#define TX_MULTIQ_STEERING      4
+
+#define VXGE_HW_MAC_ADDR_LEARN_DEFAULT VXGE_HW_RTS_MAC_DISABLE
+
+#define VXGE_TTI_BTIMER_VAL 250000
+
+#define VXGE_TTI_LTIMER_VAL 1000
+#define VXGE_TTI_RTIMER_VAL 0
+#define VXGE_RTI_BTIMER_VAL 250
+#define VXGE_RTI_LTIMER_VAL 100
+#define VXGE_RTI_RTIMER_VAL 0
+#define VXGE_FIFO_INDICATE_MAX_PKTS VXGE_DEF_FIFO_LENGTH
+#define VXGE_ISR_POLLING_CNT    8
+#define VXGE_MAX_CONFIG_DEV     0xFF
+#define VXGE_EXEC_MODE_DISABLE  0
+#define VXGE_EXEC_MODE_ENABLE   1
+#define VXGE_MAX_CONFIG_PORT    1
+#define VXGE_ALL_VID_DISABLE    0
+#define VXGE_ALL_VID_ENABLE     1
+#define VXGE_PAUSE_CTRL_DISABLE 0
+#define VXGE_PAUSE_CTRL_ENABLE  1
+
+#define TTI_TX_URANGE_A 5
+#define TTI_TX_URANGE_B 15
+#define TTI_TX_URANGE_C 40
+#define TTI_TX_UFC_A    5
+#define TTI_TX_UFC_B    40
+#define TTI_TX_UFC_C    60
+#define TTI_TX_UFC_D    100
+
+#define RTI_RX_URANGE_A 5
+#define RTI_RX_URANGE_B 15
+#define RTI_RX_URANGE_C 40
+#define RTI_RX_UFC_A    1
+#define RTI_RX_UFC_B    5
+#define RTI_RX_UFC_C    10
+#define RTI_RX_UFC_D    15
+
+/* Milli secs timer period */
+#define VXGE_TIMER_DELAY                10000
+
+#define VXGE_LL_MAX_FRAME_SIZE(dev) ((dev)->mtu + VXGE_HW_MAC_HEADER_MAX_SIZE)
+
+enum vxge_reset_event {
+        /* reset events */
+        VXGE_LL_VPATH_RESET     = 0,
+        VXGE_LL_DEVICE_RESET    = 1,
+        VXGE_LL_FULL_RESET      = 2,
+        VXGE_LL_START_RESET     = 3,
+        VXGE_LL_COMPL_RESET     = 4
+};
+/* These flags represent the devices temporary state */
+enum vxge_device_state_t {
+__VXGE_STATE_RESET_CARD = 0,
+__VXGE_STATE_CARD_UP
+};
+
+enum vxge_mac_addr_state {
+        /* mac address states */
+        VXGE_LL_MAC_ADDR_IN_LIST        = 0,
+        VXGE_LL_MAC_ADDR_IN_DA_TABLE    = 1
+};
+
+struct vxge_drv_config {
+        int config_dev_cnt;
+        int total_dev_cnt;
+        unsigned long inta_dev_open;
+        int g_no_cpus;
+        unsigned int vpath_per_dev;
+};
+
+struct macInfo {
+        unsigned char macaddr[ETH_ALEN];
+        unsigned char macmask[ETH_ALEN];
+        unsigned int vpath_no;
+        enum vxge_mac_addr_state state;
+};
+
+struct vxge_config {
+        int             tx_pause_enable;
+        int             rx_pause_enable;
+
+#define NEW_NAPI_WEIGHT 64
+        int             napi_weight;
+#define VXGE_GRO_DONOT_AGGREGATE                0
+#define VXGE_GRO_ALWAYS_AGGREGATE               1
+        int             gro_enable;
+        int             intr_type;
+#define INTA    0
+#define MSI     1
+#define MSI_X   2
+
+        int             addr_learn_en;
+
+        int             rth_steering;
+        int             rth_algorithm;
+        int             rth_hash_type_tcpipv4;
+        int             rth_hash_type_ipv4;
+        int             rth_hash_type_tcpipv6;
+        int             rth_hash_type_ipv6;
+        int             rth_hash_type_tcpipv6ex;
+        int             rth_hash_type_ipv6ex;
+        int             rth_bkt_sz;
+        int             rth_jhash_golden_ratio;
+        int             tx_steering_type;
+        int     fifo_indicate_max_pkts;
+        struct vxge_hw_device_hw_info device_hw_info;
+};
+
+struct vxge_msix_entry {
+        /* Mimicing the msix_entry struct of Kernel. */
+        u16 vector;
+        u16 entry;
+        u16 in_use;
+        void *arg;
+};
+
+/* Software Statistics */
+
+struct vxge_sw_stats {
+        /* Network Stats (interface stats) */
+        struct net_device_stats net_stats;
+
+        /* Tx */
+        u64 tx_frms;
+        u64 tx_errors;
+        u64 tx_bytes;
+        u64 txd_not_free;
+        u64 txd_out_of_desc;
+
+        /* Virtual Path */
+        u64 vpaths_open;
+        u64 vpath_open_fail;
+
+        /* Rx */
+        u64 rx_frms;
+        u64 rx_errors;
+        u64 rx_bytes;
+        u64 rx_mcast;
+
+        /* Misc. */
+        u64 link_up;
+        u64 link_down;
+        u64 pci_map_fail;
+        u64 skb_alloc_fail;
+};
+
+struct vxge_mac_addrs {
+        struct list_head item;
+        u64 macaddr;
+        u64 macmask;
+        enum vxge_mac_addr_state state;
+};
+
+struct vxgedev;
+
+struct vxge_fifo_stats {
+        u64 tx_frms;
+        u64 tx_errors;
+        u64 tx_bytes;
+        u64 txd_not_free;
+        u64 txd_out_of_desc;
+        u64 pci_map_fail;
+};
+
+struct vxge_fifo {
+        struct net_device       *ndev;
+        struct pci_dev          *pdev;
+        struct __vxge_hw_fifo *handle;
+
+        /* The vpath id maintained in the driver -
+         * 0 to 'maximum_vpaths_in_function - 1'
+         */
+        int driver_id;
+        int tx_steering_type;
+        int indicate_max_pkts;
+        spinlock_t tx_lock;
+        /* flag used to maintain queue state when MULTIQ is not enabled */
+#define VPATH_QUEUE_START       0
+#define VPATH_QUEUE_STOP        1
+        int queue_state;
+
+        /* Tx stats */
+        struct vxge_fifo_stats stats;
+} ____cacheline_aligned;
+
+struct vxge_ring_stats {
+        u64 prev_rx_frms;
+        u64 rx_frms;
+        u64 rx_errors;
+        u64 rx_dropped;
+        u64 rx_bytes;
+        u64 rx_mcast;
+        u64 pci_map_fail;
+        u64 skb_alloc_fail;
+};
+
+struct vxge_ring {
+        struct net_device       *ndev;
+        struct pci_dev          *pdev;
+        struct __vxge_hw_ring   *handle;
+        /* The vpath id maintained in the driver -
+         * 0 to 'maximum_vpaths_in_function - 1'
+         */
+        int driver_id;
+
+         /* copy of the flag indicating whether rx_csum is to be used */
+        u32 rx_csum;
+
+        int pkts_processed;
+        int budget;
+        int gro_enable;
+
+        struct napi_struct napi;
+
+#define VXGE_MAX_MAC_ADDR_COUNT         30
+
+        int vlan_tag_strip;
+        struct vlan_group *vlgrp;
+        int rx_vector_no;
+        enum vxge_hw_status last_status;
+
+        /* Rx stats */
+        struct vxge_ring_stats stats;
+} ____cacheline_aligned;
+
+struct vxge_vpath {
+
+        struct vxge_fifo fifo;
+        struct vxge_ring ring;
+
+        struct __vxge_hw_vpath_handle *handle;
+
+        /* Actual vpath id for this vpath in the device - 0 to 16 */
+        int device_id;
+        int max_mac_addr_cnt;
+        int is_configured;
+        int is_open;
+        struct vxgedev *vdev;
+        u8 (macaddr)[ETH_ALEN];
+        u8 (macmask)[ETH_ALEN];
+
+#define VXGE_MAX_LEARN_MAC_ADDR_CNT     2048
+        /* mac addresses currently programmed into NIC */
+        u16 mac_addr_cnt;
+        u16 mcast_addr_cnt;
+        struct list_head mac_addr_list;
+
+        u32 level_err;
+        u32 level_trace;
+};
+#define VXGE_COPY_DEBUG_INFO_TO_LL(vdev, err, trace) {  \
+        for (i = 0; i < vdev->no_of_vpath; i++) {               \
+                vdev->vpaths[i].level_err = err;                \
+                vdev->vpaths[i].level_trace = trace;            \
+        }                                                       \
+        vdev->level_err = err;                                  \
+        vdev->level_trace = trace;                              \
+}
+
+struct vxgedev {
+        struct net_device       *ndev;
+        struct pci_dev          *pdev;
+        struct __vxge_hw_device *devh;
+        struct vlan_group       *vlgrp;
+        int vlan_tag_strip;
+        struct vxge_config      config;
+        unsigned long   state;
+
+        /* Indicates which vpath to reset */
+        unsigned long  vp_reset;
+
+        /* Timer used for polling vpath resets */
+        struct timer_list vp_reset_timer;
+
+        /* Timer used for polling vpath lockup */
+        struct timer_list vp_lockup_timer;
+
+        /*
+         * Flags to track whether device is in All Multicast
+         * or in promiscuous mode.
+         */
+        u16             all_multi_flg;
+
+         /* A flag indicating whether rx_csum is to be used or not. */
+        u32     rx_csum;
+
+        struct vxge_msix_entry *vxge_entries;
+        struct msix_entry *entries;
+        /*
+         * 4 for each vpath * 17;
+         * total is 68
+         */
+#define VXGE_MAX_REQUESTED_MSIX 68
+#define VXGE_INTR_STRLEN 80
+        char desc[VXGE_MAX_REQUESTED_MSIX][VXGE_INTR_STRLEN];
+
+        enum vxge_hw_event cric_err_event;
+
+        int max_vpath_supported;
+        int no_of_vpath;
+
+        struct napi_struct napi;
+        /* A debug option, when enabled and if error condition occurs,
+         * the driver will do following steps:
+         * - mask all interrupts
+         * - Not clear the source of the alarm
+         * - gracefully stop all I/O
+         * A diagnostic dump of register and stats at this point
+         * reveals very useful information.
+         */
+        int exec_mode;
+        int max_config_port;
+        struct vxge_vpath       *vpaths;
+
+        struct __vxge_hw_vpath_handle *vp_handles[VXGE_HW_MAX_VIRTUAL_PATHS];
+        void __iomem *bar0;
+        void __iomem *bar1;
+        struct vxge_sw_stats    stats;
+        int             mtu;
+        /* Below variables are used for vpath selection to transmit a packet */
+        u8              vpath_selector[VXGE_HW_MAX_VIRTUAL_PATHS];
+        u64             vpaths_deployed;
+
+        u32             intr_cnt;
+        u32             level_err;
+        u32             level_trace;
+        char            fw_version[VXGE_HW_FW_STRLEN];
+};
+
+struct vxge_rx_priv {
+        struct sk_buff          *skb;
+        dma_addr_t              data_dma;
+        dma_addr_t              data_size;
+};
+
+struct vxge_tx_priv {
+        struct sk_buff          *skb;
+        dma_addr_t              dma_buffers[MAX_SKB_FRAGS+1];
+};
+
+#define VXGE_MODULE_PARAM_INT(p, val) \
+        static int p = val; \
+        module_param(p, int, 0)
+
+#define vxge_os_bug(fmt...)             { printk(fmt); BUG(); }
+
+#define vxge_os_timer(timer, handle, arg, exp) do { \
+                init_timer(&timer); \
+                timer.function = handle; \
+                timer.data = (unsigned long) arg; \
+                mod_timer(&timer, (jiffies + exp)); \
+        } while (0);
+
+int __devinit vxge_device_register(struct __vxge_hw_device *devh,
+                                    struct vxge_config *config,
+                                    int high_dma, int no_of_vpath,
+                                    struct vxgedev **vdev);
+
+void vxge_device_unregister(struct __vxge_hw_device *devh);
+
+void vxge_vpath_intr_enable(struct vxgedev *vdev, int vp_id);
+
+void vxge_vpath_intr_disable(struct vxgedev *vdev, int vp_id);
+
+void vxge_callback_link_up(struct __vxge_hw_device *devh);
+
+void vxge_callback_link_down(struct __vxge_hw_device *devh);
+
+enum vxge_hw_status vxge_add_mac_addr(struct vxgedev *vdev,
+        struct macInfo *mac);
+
+int vxge_mac_list_del(struct vxge_vpath *vpath, struct macInfo *mac);
+
+int vxge_reset(struct vxgedev *vdev);
+
+enum vxge_hw_status
+vxge_rx_1b_compl(struct __vxge_hw_ring *ringh, void *dtr,
+        u8 t_code, void *userdata);
+
+enum vxge_hw_status
+vxge_xmit_compl(struct __vxge_hw_fifo *fifo_hw, void *dtr,
+        enum vxge_hw_fifo_tcode t_code, void *userdata, void **skb_ptr);
+
+int vxge_close(struct net_device *dev);
+
+int vxge_open(struct net_device *dev);
+
+void vxge_close_vpaths(struct vxgedev *vdev, int index);
+
+int vxge_open_vpaths(struct vxgedev *vdev);
+
+enum vxge_hw_status vxge_reset_all_vpaths(struct vxgedev *vdev);
+
+void vxge_stop_all_tx_queue(struct vxgedev *vdev);
+
+void vxge_stop_tx_queue(struct vxge_fifo *fifo);
+
+void vxge_start_all_tx_queue(struct vxgedev *vdev);
+
+void vxge_wake_tx_queue(struct vxge_fifo *fifo, struct sk_buff *skb);
+
+enum vxge_hw_status vxge_add_mac_addr(struct vxgedev *vdev,
+        struct macInfo *mac);
+
+enum vxge_hw_status vxge_del_mac_addr(struct vxgedev *vdev,
+        struct macInfo *mac);
+
+int vxge_mac_list_add(struct vxge_vpath *vpath,
+        struct macInfo *mac);
+
+void vxge_free_mac_add_list(struct vxge_vpath *vpath);
+
+enum vxge_hw_status vxge_restore_vpath_mac_addr(struct vxge_vpath *vpath);
+
+enum vxge_hw_status vxge_restore_vpath_vid_table(struct vxge_vpath *vpath);
+
+int do_vxge_close(struct net_device *dev, int do_io);
+extern void initialize_ethtool_ops(struct net_device *ndev);
+/**
+ * #define VXGE_DEBUG_INIT: debug for initialization functions
+ * #define VXGE_DEBUG_TX         : debug transmit related functions
+ * #define VXGE_DEBUG_RX  : debug recevice related functions
+ * #define VXGE_DEBUG_MEM : debug memory module
+ * #define VXGE_DEBUG_LOCK: debug locks
+ * #define VXGE_DEBUG_SEM : debug semaphore
+ * #define VXGE_DEBUG_ENTRYEXIT: debug functions by adding entry exit statements
+*/
+#define VXGE_DEBUG_INIT         0x00000001
+#define VXGE_DEBUG_TX           0x00000002
+#define VXGE_DEBUG_RX           0x00000004
+#define VXGE_DEBUG_MEM          0x00000008
+#define VXGE_DEBUG_LOCK         0x00000010
+#define VXGE_DEBUG_SEM          0x00000020
+#define VXGE_DEBUG_ENTRYEXIT    0x00000040
+#define VXGE_DEBUG_INTR         0x00000080
+#define VXGE_DEBUG_LL_CONFIG    0x00000100
+
+/* Debug tracing for VXGE driver */
+#ifndef VXGE_DEBUG_MASK
+#define VXGE_DEBUG_MASK 0x0
+#endif
+
+#if (VXGE_DEBUG_LL_CONFIG & VXGE_DEBUG_MASK)
+#define vxge_debug_ll_config(level, fmt, ...) \
+        vxge_debug_ll(level, VXGE_DEBUG_LL_CONFIG, fmt, __VA_ARGS__)
+#else
+#define vxge_debug_ll_config(level, fmt, ...)
+#endif
+
+#if (VXGE_DEBUG_INIT & VXGE_DEBUG_MASK)
+#define vxge_debug_init(level, fmt, ...) \
+        vxge_debug_ll(level, VXGE_DEBUG_INIT, fmt, __VA_ARGS__)
+#else
+#define vxge_debug_init(level, fmt, ...)
+#endif
+
+#if (VXGE_DEBUG_TX & VXGE_DEBUG_MASK)
+#define vxge_debug_tx(level, fmt, ...) \
+        vxge_debug_ll(level, VXGE_DEBUG_TX, fmt, __VA_ARGS__)
+#else
+#define vxge_debug_tx(level, fmt, ...)
+#endif
+
+#if (VXGE_DEBUG_RX & VXGE_DEBUG_MASK)
+#define vxge_debug_rx(level, fmt, ...) \
+        vxge_debug_ll(level, VXGE_DEBUG_RX, fmt, __VA_ARGS__)
+#else
+#define vxge_debug_rx(level, fmt, ...)
+#endif
+
+#if (VXGE_DEBUG_MEM & VXGE_DEBUG_MASK)
+#define vxge_debug_mem(level, fmt, ...) \
+        vxge_debug_ll(level, VXGE_DEBUG_MEM, fmt, __VA_ARGS__)
+#else
+#define vxge_debug_mem(level, fmt, ...)
+#endif
+
+#if (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK)
+#define vxge_debug_entryexit(level, fmt, ...) \
+        vxge_debug_ll(level, VXGE_DEBUG_ENTRYEXIT, fmt, __VA_ARGS__)
+#else
+#define vxge_debug_entryexit(level, fmt, ...)
+#endif
+
+#if (VXGE_DEBUG_INTR & VXGE_DEBUG_MASK)
+#define vxge_debug_intr(level, fmt, ...) \
+        vxge_debug_ll(level, VXGE_DEBUG_INTR, fmt, __VA_ARGS__)
+#else
+#define vxge_debug_intr(level, fmt, ...)
+#endif
+
+#define VXGE_DEVICE_DEBUG_LEVEL_SET(level, mask, vdev) {\
+        vxge_hw_device_debug_set((struct __vxge_hw_device  *)vdev->devh, \
+                level, mask);\
+        VXGE_COPY_DEBUG_INFO_TO_LL(vdev, \
+                vxge_hw_device_error_level_get((struct __vxge_hw_device  *) \
+                        vdev->devh), \
+                vxge_hw_device_trace_level_get((struct __vxge_hw_device  *) \
+                        vdev->devh));\
+}
+
+#ifdef NETIF_F_GSO
+#define vxge_tcp_mss(skb) (skb_shinfo(skb)->gso_size)
+#define vxge_udp_mss(skb) (skb_shinfo(skb)->gso_size)
+#define vxge_offload_type(skb) (skb_shinfo(skb)->gso_type)
+#endif
+
+#endif