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freebsd-nq/sys/dev/nxge/if_nxge.h
Robert Watson 3be4cb0b4a Merge Neterion if_nxge driver version 2.0.9.11230 with the following 
changes:

  01 -  Enhanced LRO:
  LRO feature is extended to support multi-buffer mode. Previously,
  Ethernet frames received in contiguous buffers were offloaded.
  Now, frames received in multiple non-contiguous buffers can be
  offloaded, as well. The driver now supports LRO for jumbo frames.

  02 - Locks Optimization:
  The driver code was re-organized to limit the use of locks.
  Moreover, lock contention was reduced by replacing wait locks
  with try locks.

  03 - Code Optimization:
  The driver code was re-factored  to eliminate some memcpy
  operations.  Fast path loops were optimized.

  04 - Tag Creations:
  Physical Buffer Tags are now optimized based upon frame size.
  For better performance, Physical Memory Maps are now re-used.

  05 - Configuration:
  Features such as TSO, LRO, and Interrupt Mode can be configured
  either at load or at run time. Rx buffer mode (mode 1 or mode 2)
  can be configured at load time through kenv.

  06 - Driver Statistics:
  Run time statistics are enhanced to provide better visibility
  into the driver performance.

  07 - Bug Fixes:
  The driver contains fixes for the problems discovered and
  reported since last submission.

  08 - MSI support:
  Added Message Signaled Interrupt feature which currently uses 1
  message.

  09  Removed feature:
  Rx 3 buffer mode feature has been removed. Driver now supports 1,
  2 and 5 buffer modes of which 2 and 5 buffer modes can be used
  for header separation.

  10  Compiler warning:
  Fixed compiler warning when compiled for 32 bit system.

  11 Copyright notice:
  Source files are updated with the proper copyright notice.

MFC after:	3 days
Submitted by:	Alicia Pena <Alicia dot Pena at neterion dot com>,
		Muhammad Shafiq <Muhammad dot Shafiq at neterion dot com>
2007-10-29 14:19:32 +00:00

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/*-
* Copyright (c) 2002-2007 Neterion, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _IF_XGE_H
#define _IF_XGE_H
#include <dev/nxge/include/xgehal.h>
#include <dev/nxge/xge-osdep.h>
/* Printing description, Copyright */
#define XGE_DRIVER_VERSION \
XGELL_VERSION_MAJOR"."XGELL_VERSION_MINOR"." \
XGELL_VERSION_FIX"."XGELL_VERSION_BUILD
#define XGE_COPYRIGHT "Copyright(c) 2002-2007 Neterion Inc."
/* Printing */
#define xge_trace(trace, fmt, args...) xge_debug_ll(trace, fmt, ## args);
#define XGE_ALIGN_TO(buffer_length, to) { \
if((buffer_length % to) != 0) { \
buffer_length += (to - (buffer_length % to)); \
} \
}
#define XGE_EXIT_ON_ERR(text, label, return_value) { \
xge_trace(XGE_ERR, "%s (Status: %d)", text, return_value); \
status = return_value; \
goto label; \
}
#define XGE_SET_BUFFER_MODE_IN_RINGS(mode) { \
for(index = 0; index < XGE_RING_COUNT; index++) \
ring_config->queue[index].buffer_mode = mode; \
}
#define XGE_DEFAULT_USER_HARDCODED -1
#define XGE_MAX_SEGS 100 /* Maximum number of segments */
#define XGE_TX_LEVEL_LOW 16
#define XGE_FIFO_COUNT XGE_HAL_MIN_FIFO_NUM
#define XGE_RING_COUNT XGE_HAL_MIN_RING_NUM
#define XGE_BUFFER_SIZE 20
#define XGE_LRO_DEFAULT_ENTRIES 12
#define XGE_BAUDRATE 1000000000
/* Default values to configuration parameters */
#define XGE_DEFAULT_ENABLED_TSO 1
#define XGE_DEFAULT_ENABLED_LRO 1
#define XGE_DEFAULT_ENABLED_MSI 1
#define XGE_DEFAULT_BUFFER_MODE 1
#define XGE_DEFAULT_INITIAL_MTU 1500
#define XGE_DEFAULT_LATENCY_TIMER -1
#define XGE_DEFAULT_MAX_SPLITS_TRANS -1
#define XGE_DEFAULT_MMRB_COUNT -1
#define XGE_DEFAULT_SHARED_SPLITS 0
#define XGE_DEFAULT_ISR_POLLING_CNT 8
#define XGE_DEFAULT_STATS_REFRESH_TIME_SEC 4
#define XGE_DEFAULT_MAC_RMAC_BCAST_EN 1
#define XGE_DEFAULT_MAC_TMAC_UTIL_PERIOD 5
#define XGE_DEFAULT_MAC_RMAC_UTIL_PERIOD 5
#define XGE_DEFAULT_MAC_RMAC_PAUSE_GEN_EN 1
#define XGE_DEFAULT_MAC_RMAC_PAUSE_RCV_EN 1
#define XGE_DEFAULT_MAC_RMAC_PAUSE_TIME 65535
#define XGE_DEFAULT_MAC_MC_PAUSE_THRESHOLD_Q0Q3 187
#define XGE_DEFAULT_MAC_MC_PAUSE_THRESHOLD_Q4Q7 187
#define XGE_DEFAULT_FIFO_MEMBLOCK_SIZE PAGE_SIZE
#define XGE_DEFAULT_FIFO_RESERVE_THRESHOLD 0
#define XGE_DEFAULT_FIFO_MAX_FRAGS 64
#define XGE_DEFAULT_FIFO_QUEUE_INTR 0
#define XGE_DEFAULT_FIFO_QUEUE_MAX 2048
#define XGE_DEFAULT_FIFO_QUEUE_INITIAL 2048
#define XGE_DEFAULT_FIFO_QUEUE_TTI_URANGE_A 5
#define XGE_DEFAULT_FIFO_QUEUE_TTI_URANGE_B 10
#define XGE_DEFAULT_FIFO_QUEUE_TTI_URANGE_C 20
#define XGE_DEFAULT_FIFO_QUEUE_TTI_UFC_A 15
#define XGE_DEFAULT_FIFO_QUEUE_TTI_UFC_B 30
#define XGE_DEFAULT_FIFO_QUEUE_TTI_UFC_C 45
#define XGE_DEFAULT_FIFO_QUEUE_TTI_UFC_D 60
#define XGE_DEFAULT_FIFO_QUEUE_TTI_TIMER_CI_EN 1
#define XGE_DEFAULT_FIFO_QUEUE_TTI_TIMER_AC_EN 1
#define XGE_DEFAULT_FIFO_QUEUE_TTI_TIMER_VAL_US 8000
#define XGE_DEFAULT_FIFO_ALIGNMENT_SIZE sizeof(u64)
#define XGE_DEFAULT_RING_MEMBLOCK_SIZE PAGE_SIZE
#define XGE_DEFAULT_RING_STRIP_VLAN_TAG 1
#define XGE_DEFAULT_RING_QUEUE_MAX 16
#define XGE_DEFAULT_RING_QUEUE_INITIAL 16
#define XGE_DEFAULT_RING_QUEUE_DRAM_SIZE_MB 32
#define XGE_DEFAULT_RING_QUEUE_INDICATE_MAX_PKTS 16
#define XGE_DEFAULT_RING_QUEUE_BACKOFF_INTERVAL_US 1000
#define XGE_DEFAULT_RING_QUEUE_RTI_URANGE_A 5
#define XGE_DEFAULT_RING_QUEUE_RTI_URANGE_B 10
#define XGE_DEFAULT_RING_QUEUE_RTI_URANGE_C 50
#define XGE_DEFAULT_RING_QUEUE_RTI_UFC_A 1
#define XGE_DEFAULT_RING_QUEUE_RTI_UFC_B 8
#define XGE_DEFAULT_RING_QUEUE_RTI_UFC_C 16
#define XGE_DEFAULT_RING_QUEUE_RTI_UFC_D 32
#define XGE_DEFAULT_RING_QUEUE_RTI_TIMER_AC_EN 1
#define XGE_DEFAULT_RING_QUEUE_RTI_TIMER_VAL_US 250
#define XGE_DRV_STATS(param) (lldev->driver_stats.param++)
#define XGE_SAVE_PARAM(to, what, value) to.what = value;
#define XGE_GET_PARAM(str_kenv, to, param, hardcode) { \
static int param##__LINE__; \
if(testenv(str_kenv) == 1) { \
getenv_int(str_kenv, &param##__LINE__); \
} \
else { \
param##__LINE__ = hardcode; \
} \
XGE_SAVE_PARAM(to, param, param##__LINE__); \
}
#define XGE_GET_PARAM_MAC(str_kenv, param, hardcode) \
XGE_GET_PARAM(str_kenv, ((*dconfig).mac), param, hardcode);
#define XGE_GET_PARAM_FIFO(str_kenv, param, hardcode) \
XGE_GET_PARAM(str_kenv, ((*dconfig).fifo), param, hardcode);
#define XGE_GET_PARAM_FIFO_QUEUE(str_kenv, param, qindex, hardcode) \
XGE_GET_PARAM(str_kenv, ((*dconfig).fifo.queue[qindex]), param, \
hardcode);
#define XGE_GET_PARAM_FIFO_QUEUE_TTI(str_kenv, param, qindex, tindex, hardcode)\
XGE_GET_PARAM(str_kenv, ((*dconfig).fifo.queue[qindex].tti[tindex]), \
param, hardcode);
#define XGE_GET_PARAM_RING(str_kenv, param, hardcode) \
XGE_GET_PARAM(str_kenv, ((*dconfig).ring), param, hardcode);
#define XGE_GET_PARAM_RING_QUEUE(str_kenv, param, qindex, hardcode) \
XGE_GET_PARAM(str_kenv, ((*dconfig).ring.queue[qindex]), param, \
hardcode);
#define XGE_GET_PARAM_RING_QUEUE_RTI(str_kenv, param, qindex, hardcode) \
XGE_GET_PARAM(str_kenv, ((*dconfig).ring.queue[qindex].rti), param, \
hardcode);
/* Values to identify the requests from getinfo tool in ioctl */
#define XGE_QUERY_STATS 1
#define XGE_QUERY_PCICONF 2
#define XGE_QUERY_DEVSTATS 3
#define XGE_QUERY_DEVCONF 4
#define XGE_READ_VERSION 5
#define XGE_QUERY_SWSTATS 6
#define XGE_QUERY_DRIVERSTATS 7
#define XGE_SET_BUFFER_MODE_1 8
#define XGE_SET_BUFFER_MODE_2 9
#define XGE_SET_BUFFER_MODE_5 10
#define XGE_QUERY_BUFFER_MODE 11
#define XGE_OFFSET_OF_LAST_REG 0x3180
#define VENDOR_ID_AMD 0x1022
#define DEVICE_ID_8131_PCI_BRIDGE 0x7450
typedef struct mbuf *mbuf_t;
typedef enum xge_lables {
xge_free_all = 0,
xge_free_mutex = 1,
xge_free_terminate_hal_driver = 2,
xge_free_hal_device = 3,
xge_free_pci_info = 4,
xge_free_bar0 = 5,
xge_free_bar0_resource = 6,
xge_free_bar1 = 7,
xge_free_bar1_resource = 8,
xge_free_irq_resource = 9,
xge_free_terminate_hal_device = 10,
xge_free_media_interface = 11,
} xge_lables_e;
typedef enum xge_option {
XGE_CHANGE_LRO = 0,
XGE_SET_MTU = 1
} xge_option_e;
typedef enum xge_event_e {
XGE_LL_EVENT_TRY_XMIT_AGAIN = XGE_LL_EVENT_BASE + 1,
XGE_LL_EVENT_DEVICE_RESETTING = XGE_LL_EVENT_BASE + 2
} xge_event_e;
typedef struct xge_msi_info {
u16 msi_control; /* MSI control 0x42 */
u32 msi_lower_address; /* MSI lower address 0x44 */
u32 msi_higher_address; /* MSI higher address 0x48 */
u16 msi_data; /* MSI data */
} xge_msi_info_t;
typedef struct xge_driver_stats_t {
/* ISR statistics */
u64 isr_filter;
u64 isr_line;
u64 isr_msi;
/* Tx statistics */
u64 tx_calls;
u64 tx_completions;
u64 tx_desc_compl;
u64 tx_tcode;
u64 tx_defrag;
u64 tx_no_txd;
u64 tx_map_fail;
u64 tx_max_frags;
u64 tx_tso;
u64 tx_posted;
u64 tx_again;
u64 tx_lock_fail;
/* Rx statistics */
u64 rx_completions;
u64 rx_desc_compl;
u64 rx_tcode;
u64 rx_no_buf;
u64 rx_map_fail;
/* LRO statistics */
u64 lro_uncapable;
u64 lro_begin;
u64 lro_end1;
u64 lro_end2;
u64 lro_end3;
u64 lro_append;
u64 lro_session_exceeded;
u64 lro_close;
} xge_driver_stats_t;
typedef struct xge_lro_entry_t {
SLIST_ENTRY(xge_lro_entry_t) next;
struct mbuf *m_head;
struct mbuf *m_tail;
struct ip *lro_header_ip;
int timestamp;
u32 tsval;
u32 tsecr;
u32 source_ip;
u32 dest_ip;
u32 next_seq;
u32 ack_seq;
u32 len;
u32 data_csum;
u16 window;
u16 source_port;
u16 dest_port;
u16 append_cnt;
u16 mss;
} xge_lro_entry_t;
SLIST_HEAD(lro_head, xge_lro_entry_t);
/* Adapter structure */
typedef struct xge_lldev_t {
device_t device; /* Device */
struct ifnet *ifnetp; /* Interface ifnet structure */
struct resource *irq; /* Resource structure for IRQ */
void *irqhandle; /* IRQ handle */
xge_pci_info_t *pdev; /* PCI info */
xge_hal_device_t *devh; /* HAL: Device Handle */
struct mtx mtx_drv; /* Mutex - Driver */
struct mtx mtx_tx[XGE_FIFO_COUNT];
/* Mutex - Tx */
char mtx_name_drv[16];/*Mutex Name - Driver */
char mtx_name_tx[16][XGE_FIFO_COUNT];
/* Mutex Name - Tx */
struct callout timer; /* Timer for polling */
struct ifmedia media; /* In-kernel representation of a */
/* single supported media type */
xge_hal_channel_h fifo_channel[XGE_FIFO_COUNT];
/* FIFO channels */
xge_hal_channel_h ring_channel[XGE_RING_COUNT];
/* Ring channels */
bus_dma_tag_t dma_tag_tx; /* Tag for dtr dma mapping (Tx) */
bus_dma_tag_t dma_tag_rx; /* Tag for dtr dma mapping (Rx) */
bus_dmamap_t extra_dma_map; /* Extra DMA map for Rx */
xge_msi_info_t msi_info; /* MSI info */
xge_driver_stats_t driver_stats; /* Driver statistics */
int initialized; /* Flag: Initialized or not */
int all_multicast; /* All multicast flag */
int macaddr_count; /* Multicast address count */
int in_detach; /* To avoid ioctl during detach */
int buffer_mode; /* Buffer Mode */
int rxd_mbuf_cnt; /* Number of buffers used */
int rxd_mbuf_len[5];/* Buffer lengths */
int enabled_tso; /* Flag: TSO Enabled */
int enabled_lro; /* Flag: LRO Enabled */
int enabled_msi; /* Flag: MSI Enabled */
int mtu; /* Interface MTU */
int lro_num; /* Number of LRO sessions */
struct lro_head lro_active; /* Active LRO sessions */
struct lro_head lro_free; /* Free LRO sessions */
} xge_lldev_t;
/* Rx descriptor private structure */
typedef struct xge_rx_priv_t {
mbuf_t *bufferArray;
xge_dma_mbuf_t dmainfo[5];
} xge_rx_priv_t;
/* Tx descriptor private structure */
typedef struct xge_tx_priv_t {
mbuf_t buffer;
bus_dmamap_t dma_map;
} xge_tx_priv_t;
/* BAR0 Register */
typedef struct xge_register_t {
char option[2];
u64 offset;
u64 value;
}xge_register_t;
void xge_init_params(xge_hal_device_config_t *, device_t);
void xge_init(void *);
void xge_device_init(xge_lldev_t *, xge_hal_channel_reopen_e);
void xge_device_stop(xge_lldev_t *, xge_hal_channel_reopen_e);
void xge_stop(xge_lldev_t *);
void xge_resources_free(device_t, xge_lables_e);
void xge_callback_link_up(void *);
void xge_callback_link_down(void *);
void xge_callback_crit_err(void *, xge_hal_event_e, u64);
void xge_callback_event(xge_queue_item_t *);
int xge_ifmedia_change(struct ifnet *);
void xge_ifmedia_status(struct ifnet *, struct ifmediareq *);
int xge_ioctl(struct ifnet *, unsigned long, caddr_t);
int xge_ioctl_stats(xge_lldev_t *, struct ifreq *);
int xge_ioctl_registers(xge_lldev_t *, struct ifreq *);
void xge_timer(void *);
int xge_isr_filter(void *);
void xge_isr_line(void *);
void xge_isr_msi(void *);
void xge_enable_msi(xge_lldev_t *);
int xge_rx_open(int, xge_lldev_t *, xge_hal_channel_reopen_e);
int xge_tx_open(xge_lldev_t *, xge_hal_channel_reopen_e);
void xge_channel_close(xge_lldev_t *, xge_hal_channel_reopen_e);
int xge_channel_open(xge_lldev_t *, xge_hal_channel_reopen_e);
xge_hal_status_e xge_rx_compl(xge_hal_channel_h, xge_hal_dtr_h, u8, void *);
xge_hal_status_e xge_tx_compl(xge_hal_channel_h, xge_hal_dtr_h, u8, void *);
xge_hal_status_e xge_tx_initial_replenish(xge_hal_channel_h, xge_hal_dtr_h,
int, void *, xge_hal_channel_reopen_e);
xge_hal_status_e xge_rx_initial_replenish(xge_hal_channel_h, xge_hal_dtr_h,
int, void *, xge_hal_channel_reopen_e);
void xge_rx_term(xge_hal_channel_h, xge_hal_dtr_h, xge_hal_dtr_state_e,
void *, xge_hal_channel_reopen_e);
void xge_tx_term(xge_hal_channel_h, xge_hal_dtr_h, xge_hal_dtr_state_e,
void *, xge_hal_channel_reopen_e);
void xge_set_mbuf_cflags(mbuf_t);
void xge_send(struct ifnet *);
static void inline xge_send_locked(struct ifnet *, int);
int xge_get_buf(xge_hal_dtr_h, xge_rx_priv_t *, xge_lldev_t *, int);
int xge_ring_dtr_get(mbuf_t, xge_hal_channel_h, xge_hal_dtr_h, xge_lldev_t *,
xge_rx_priv_t *);
int xge_get_buf_3b_5b(xge_hal_dtr_h, xge_rx_priv_t *, xge_lldev_t *);
void dmamap_cb(void *, bus_dma_segment_t *, int, int);
void xge_reset(xge_lldev_t *);
void xge_setmulti(xge_lldev_t *);
void xge_enable_promisc(xge_lldev_t *);
void xge_disable_promisc(xge_lldev_t *);
int xge_change_mtu(xge_lldev_t *, int);
void xge_buffer_mode_init(xge_lldev_t *, int);
void xge_initialize(device_t, xge_hal_channel_reopen_e);
void xge_terminate(device_t, xge_hal_channel_reopen_e);
int xge_probe(device_t);
int xge_driver_initialize(void);
void xge_media_init(device_t);
void xge_pci_space_save(device_t);
void xge_pci_space_restore(device_t);
void xge_msi_info_save(xge_lldev_t *);
void xge_msi_info_restore(xge_lldev_t *);
int xge_attach(device_t);
int xge_interface_setup(device_t);
int xge_detach(device_t);
int xge_shutdown(device_t);
void xge_mutex_init(xge_lldev_t *);
void xge_mutex_destroy(xge_lldev_t *);
void xge_print_info(xge_lldev_t *);
void xge_lro_flush_sessions(xge_lldev_t *);
void xge_rx_buffer_sizes_set(xge_lldev_t *, int, int);
void xge_accumulate_large_rx(xge_lldev_t *, struct mbuf *, int,
xge_rx_priv_t *);
xge_hal_status_e xge_create_dma_tags(device_t);
void xge_add_sysctl_handlers(xge_lldev_t *);
void xge_confirm_changes(xge_lldev_t *, xge_option_e);
static int xge_lro_accumulate(xge_lldev_t *, struct mbuf *);
static void xge_lro_flush(xge_lldev_t *, xge_lro_entry_t *);
#endif // _IF_XGE_H
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