1 /******************************************************************************
2 * This software may be used and distributed according to the terms of
3 * the GNU General Public License (GPL), incorporated herein by reference.
4 * Drivers based on or derived from this code fall under the GPL and must
5 * retain the authorship, copyright and license notice. This file is not
6 * a complete program and may only be used when the entire operating
7 * system is licensed under the GPL.
8 * See the file COPYING in this distribution for more information.
10 * vxge-main.h: Driver for Exar Corp's X3100 Series 10GbE PCIe I/O
11 * Virtualized Server Adapter.
12 * Copyright(c) 2002-2010 Exar Corp.
13 ******************************************************************************/
17 #include "vxge-traffic.h"
18 #include "vxge-config.h"
19 #include "vxge-version.h"
20 #include <linux/list.h>
22 #define VXGE_DRIVER_NAME "vxge"
23 #define VXGE_DRIVER_VENDOR "Neterion, Inc"
24 #define VXGE_DRIVER_FW_VERSION_MAJOR 1
26 #define DRV_VERSION VXGE_VERSION_MAJOR"."VXGE_VERSION_MINOR"."\
27 VXGE_VERSION_FIX"."VXGE_VERSION_BUILD"-"\
30 #define PCI_DEVICE_ID_TITAN_WIN 0x5733
31 #define PCI_DEVICE_ID_TITAN_UNI 0x5833
32 #define VXGE_USE_DEFAULT 0xffffffff
33 #define VXGE_HW_VPATH_MSIX_ACTIVE 4
34 #define VXGE_ALARM_MSIX_ID 2
35 #define VXGE_HW_RXSYNC_FREQ_CNT 4
36 #define VXGE_LL_WATCH_DOG_TIMEOUT (15 * HZ)
37 #define VXGE_LL_RX_COPY_THRESHOLD 256
38 #define VXGE_DEF_FIFO_LENGTH 84
41 #define PORT_STEERING 0x1
42 #define RTH_STEERING 0x2
43 #define RX_TOS_STEERING 0x3
44 #define RX_VLAN_STEERING 0x4
45 #define RTH_BUCKET_SIZE 4
47 #define TX_PRIORITY_STEERING 1
48 #define TX_VLAN_STEERING 2
49 #define TX_PORT_STEERING 3
50 #define TX_MULTIQ_STEERING 4
52 #define VXGE_HW_MAC_ADDR_LEARN_DEFAULT VXGE_HW_RTS_MAC_DISABLE
54 #define VXGE_TTI_BTIMER_VAL 250000
56 #define VXGE_TTI_LTIMER_VAL 1000
57 #define VXGE_TTI_RTIMER_VAL 0
58 #define VXGE_RTI_BTIMER_VAL 250
59 #define VXGE_RTI_LTIMER_VAL 100
60 #define VXGE_RTI_RTIMER_VAL 0
61 #define VXGE_FIFO_INDICATE_MAX_PKTS VXGE_DEF_FIFO_LENGTH
62 #define VXGE_ISR_POLLING_CNT 8
63 #define VXGE_MAX_CONFIG_DEV 0xFF
64 #define VXGE_EXEC_MODE_DISABLE 0
65 #define VXGE_EXEC_MODE_ENABLE 1
66 #define VXGE_MAX_CONFIG_PORT 1
67 #define VXGE_ALL_VID_DISABLE 0
68 #define VXGE_ALL_VID_ENABLE 1
69 #define VXGE_PAUSE_CTRL_DISABLE 0
70 #define VXGE_PAUSE_CTRL_ENABLE 1
72 #define TTI_TX_URANGE_A 5
73 #define TTI_TX_URANGE_B 15
74 #define TTI_TX_URANGE_C 40
75 #define TTI_TX_UFC_A 5
76 #define TTI_TX_UFC_B 40
77 #define TTI_TX_UFC_C 60
78 #define TTI_TX_UFC_D 100
80 #define RTI_RX_URANGE_A 5
81 #define RTI_RX_URANGE_B 15
82 #define RTI_RX_URANGE_C 40
83 #define RTI_RX_UFC_A 1
84 #define RTI_RX_UFC_B 5
85 #define RTI_RX_UFC_C 10
86 #define RTI_RX_UFC_D 15
88 /* Milli secs timer period */
89 #define VXGE_TIMER_DELAY 10000
91 #define VXGE_LL_MAX_FRAME_SIZE(dev) ((dev)->mtu + VXGE_HW_MAC_HEADER_MAX_SIZE)
93 #define is_sriov(function_mode) \
94 ((function_mode == VXGE_HW_FUNCTION_MODE_SRIOV) || \
95 (function_mode == VXGE_HW_FUNCTION_MODE_SRIOV_8) || \
96 (function_mode == VXGE_HW_FUNCTION_MODE_SRIOV_4))
98 enum vxge_reset_event
{
100 VXGE_LL_VPATH_RESET
= 0,
101 VXGE_LL_DEVICE_RESET
= 1,
102 VXGE_LL_FULL_RESET
= 2,
103 VXGE_LL_START_RESET
= 3,
104 VXGE_LL_COMPL_RESET
= 4
106 /* These flags represent the devices temporary state */
107 enum vxge_device_state_t
{
108 __VXGE_STATE_RESET_CARD
= 0,
112 enum vxge_mac_addr_state
{
113 /* mac address states */
114 VXGE_LL_MAC_ADDR_IN_LIST
= 0,
115 VXGE_LL_MAC_ADDR_IN_DA_TABLE
= 1
118 struct vxge_drv_config
{
122 unsigned int vpath_per_dev
;
126 unsigned char macaddr
[ETH_ALEN
];
127 unsigned char macmask
[ETH_ALEN
];
128 unsigned int vpath_no
;
129 enum vxge_mac_addr_state state
;
136 #define NEW_NAPI_WEIGHT 64
138 #define VXGE_GRO_DONOT_AGGREGATE 0
139 #define VXGE_GRO_ALWAYS_AGGREGATE 1
150 int rth_hash_type_tcpipv4
;
151 int rth_hash_type_ipv4
;
152 int rth_hash_type_tcpipv6
;
153 int rth_hash_type_ipv6
;
154 int rth_hash_type_tcpipv6ex
;
155 int rth_hash_type_ipv6ex
;
157 int rth_jhash_golden_ratio
;
158 int tx_steering_type
;
159 int fifo_indicate_max_pkts
;
160 struct vxge_hw_device_hw_info device_hw_info
;
163 struct vxge_msix_entry
{
164 /* Mimicing the msix_entry struct of Kernel. */
171 /* Software Statistics */
173 struct vxge_sw_stats
{
174 /* Network Stats (interface stats) */
200 struct vxge_mac_addrs
{
201 struct list_head item
;
204 enum vxge_mac_addr_state state
;
209 struct vxge_fifo_stats
{
219 struct net_device
*ndev
;
220 struct pci_dev
*pdev
;
221 struct __vxge_hw_fifo
*handle
;
222 struct netdev_queue
*txq
;
224 int tx_steering_type
;
225 int indicate_max_pkts
;
228 struct vxge_fifo_stats stats
;
229 } ____cacheline_aligned
;
231 struct vxge_ring_stats
{
243 struct net_device
*ndev
;
244 struct pci_dev
*pdev
;
245 struct __vxge_hw_ring
*handle
;
246 /* The vpath id maintained in the driver -
247 * 0 to 'maximum_vpaths_in_function - 1'
251 /* copy of the flag indicating whether rx_csum is to be used */
258 struct napi_struct napi
;
259 struct napi_struct
*napi_p
;
261 #define VXGE_MAX_MAC_ADDR_COUNT 30
264 struct vlan_group
*vlgrp
;
266 enum vxge_hw_status last_status
;
269 struct vxge_ring_stats stats
;
270 } ____cacheline_aligned
;
273 struct vxge_fifo fifo
;
274 struct vxge_ring ring
;
276 struct __vxge_hw_vpath_handle
*handle
;
278 /* Actual vpath id for this vpath in the device - 0 to 16 */
280 int max_mac_addr_cnt
;
283 struct vxgedev
*vdev
;
284 u8 (macaddr
)[ETH_ALEN
];
285 u8 (macmask
)[ETH_ALEN
];
287 #define VXGE_MAX_LEARN_MAC_ADDR_CNT 2048
288 /* mac addresses currently programmed into NIC */
291 struct list_head mac_addr_list
;
296 #define VXGE_COPY_DEBUG_INFO_TO_LL(vdev, err, trace) { \
297 for (i = 0; i < vdev->no_of_vpath; i++) { \
298 vdev->vpaths[i].level_err = err; \
299 vdev->vpaths[i].level_trace = trace; \
301 vdev->level_err = err; \
302 vdev->level_trace = trace; \
306 struct net_device
*ndev
;
307 struct pci_dev
*pdev
;
308 struct __vxge_hw_device
*devh
;
309 struct vlan_group
*vlgrp
;
311 struct vxge_config config
;
314 /* Indicates which vpath to reset */
315 unsigned long vp_reset
;
317 /* Timer used for polling vpath resets */
318 struct timer_list vp_reset_timer
;
320 /* Timer used for polling vpath lockup */
321 struct timer_list vp_lockup_timer
;
324 * Flags to track whether device is in All Multicast
325 * or in promiscuous mode.
329 /* A flag indicating whether rx_csum is to be used or not. */
332 struct vxge_msix_entry
*vxge_entries
;
333 struct msix_entry
*entries
;
335 * 4 for each vpath * 17;
338 #define VXGE_MAX_REQUESTED_MSIX 68
339 #define VXGE_INTR_STRLEN 80
340 char desc
[VXGE_MAX_REQUESTED_MSIX
][VXGE_INTR_STRLEN
];
342 enum vxge_hw_event cric_err_event
;
344 int max_vpath_supported
;
347 struct napi_struct napi
;
348 /* A debug option, when enabled and if error condition occurs,
349 * the driver will do following steps:
350 * - mask all interrupts
351 * - Not clear the source of the alarm
352 * - gracefully stop all I/O
353 * A diagnostic dump of register and stats at this point
354 * reveals very useful information.
358 struct vxge_vpath
*vpaths
;
360 struct __vxge_hw_vpath_handle
*vp_handles
[VXGE_HW_MAX_VIRTUAL_PATHS
];
362 struct vxge_sw_stats stats
;
364 /* Below variables are used for vpath selection to transmit a packet */
365 u8 vpath_selector
[VXGE_HW_MAX_VIRTUAL_PATHS
];
371 char fw_version
[VXGE_HW_FW_STRLEN
];
374 struct vxge_rx_priv
{
376 unsigned char *skb_data
;
378 dma_addr_t data_size
;
381 struct vxge_tx_priv
{
383 dma_addr_t dma_buffers
[MAX_SKB_FRAGS
+1];
386 #define VXGE_MODULE_PARAM_INT(p, val) \
387 static int p = val; \
388 module_param(p, int, 0)
390 #define vxge_os_bug(fmt...) { printk(fmt); BUG(); }
392 #define vxge_os_timer(timer, handle, arg, exp) do { \
393 init_timer(&timer); \
394 timer.function = handle; \
395 timer.data = (unsigned long) arg; \
396 mod_timer(&timer, (jiffies + exp)); \
399 int __devinit
vxge_device_register(struct __vxge_hw_device
*devh
,
400 struct vxge_config
*config
,
401 int high_dma
, int no_of_vpath
,
402 struct vxgedev
**vdev
);
404 void vxge_device_unregister(struct __vxge_hw_device
*devh
);
406 void vxge_vpath_intr_enable(struct vxgedev
*vdev
, int vp_id
);
408 void vxge_vpath_intr_disable(struct vxgedev
*vdev
, int vp_id
);
410 void vxge_callback_link_up(struct __vxge_hw_device
*devh
);
412 void vxge_callback_link_down(struct __vxge_hw_device
*devh
);
414 enum vxge_hw_status
vxge_add_mac_addr(struct vxgedev
*vdev
,
415 struct macInfo
*mac
);
417 int vxge_mac_list_del(struct vxge_vpath
*vpath
, struct macInfo
*mac
);
419 int vxge_reset(struct vxgedev
*vdev
);
422 vxge_rx_1b_compl(struct __vxge_hw_ring
*ringh
, void *dtr
,
423 u8 t_code
, void *userdata
);
426 vxge_xmit_compl(struct __vxge_hw_fifo
*fifo_hw
, void *dtr
,
427 enum vxge_hw_fifo_tcode t_code
, void *userdata
,
428 struct sk_buff
***skb_ptr
, int nr_skbs
, int *more
);
430 int vxge_close(struct net_device
*dev
);
432 int vxge_open(struct net_device
*dev
);
434 void vxge_close_vpaths(struct vxgedev
*vdev
, int index
);
436 int vxge_open_vpaths(struct vxgedev
*vdev
);
438 enum vxge_hw_status
vxge_reset_all_vpaths(struct vxgedev
*vdev
);
440 enum vxge_hw_status
vxge_add_mac_addr(struct vxgedev
*vdev
,
441 struct macInfo
*mac
);
443 enum vxge_hw_status
vxge_del_mac_addr(struct vxgedev
*vdev
,
444 struct macInfo
*mac
);
446 int vxge_mac_list_add(struct vxge_vpath
*vpath
,
447 struct macInfo
*mac
);
449 void vxge_free_mac_add_list(struct vxge_vpath
*vpath
);
451 enum vxge_hw_status
vxge_restore_vpath_mac_addr(struct vxge_vpath
*vpath
);
453 enum vxge_hw_status
vxge_restore_vpath_vid_table(struct vxge_vpath
*vpath
);
455 int do_vxge_close(struct net_device
*dev
, int do_io
);
456 extern void initialize_ethtool_ops(struct net_device
*ndev
);
458 * #define VXGE_DEBUG_INIT: debug for initialization functions
459 * #define VXGE_DEBUG_TX : debug transmit related functions
460 * #define VXGE_DEBUG_RX : debug recevice related functions
461 * #define VXGE_DEBUG_MEM : debug memory module
462 * #define VXGE_DEBUG_LOCK: debug locks
463 * #define VXGE_DEBUG_SEM : debug semaphore
464 * #define VXGE_DEBUG_ENTRYEXIT: debug functions by adding entry exit statements
466 #define VXGE_DEBUG_INIT 0x00000001
467 #define VXGE_DEBUG_TX 0x00000002
468 #define VXGE_DEBUG_RX 0x00000004
469 #define VXGE_DEBUG_MEM 0x00000008
470 #define VXGE_DEBUG_LOCK 0x00000010
471 #define VXGE_DEBUG_SEM 0x00000020
472 #define VXGE_DEBUG_ENTRYEXIT 0x00000040
473 #define VXGE_DEBUG_INTR 0x00000080
474 #define VXGE_DEBUG_LL_CONFIG 0x00000100
476 /* Debug tracing for VXGE driver */
477 #ifndef VXGE_DEBUG_MASK
478 #define VXGE_DEBUG_MASK 0x0
481 #if (VXGE_DEBUG_LL_CONFIG & VXGE_DEBUG_MASK)
482 #define vxge_debug_ll_config(level, fmt, ...) \
483 vxge_debug_ll(level, VXGE_DEBUG_LL_CONFIG, fmt, __VA_ARGS__)
485 #define vxge_debug_ll_config(level, fmt, ...)
488 #if (VXGE_DEBUG_INIT & VXGE_DEBUG_MASK)
489 #define vxge_debug_init(level, fmt, ...) \
490 vxge_debug_ll(level, VXGE_DEBUG_INIT, fmt, __VA_ARGS__)
492 #define vxge_debug_init(level, fmt, ...)
495 #if (VXGE_DEBUG_TX & VXGE_DEBUG_MASK)
496 #define vxge_debug_tx(level, fmt, ...) \
497 vxge_debug_ll(level, VXGE_DEBUG_TX, fmt, __VA_ARGS__)
499 #define vxge_debug_tx(level, fmt, ...)
502 #if (VXGE_DEBUG_RX & VXGE_DEBUG_MASK)
503 #define vxge_debug_rx(level, fmt, ...) \
504 vxge_debug_ll(level, VXGE_DEBUG_RX, fmt, __VA_ARGS__)
506 #define vxge_debug_rx(level, fmt, ...)
509 #if (VXGE_DEBUG_MEM & VXGE_DEBUG_MASK)
510 #define vxge_debug_mem(level, fmt, ...) \
511 vxge_debug_ll(level, VXGE_DEBUG_MEM, fmt, __VA_ARGS__)
513 #define vxge_debug_mem(level, fmt, ...)
516 #if (VXGE_DEBUG_ENTRYEXIT & VXGE_DEBUG_MASK)
517 #define vxge_debug_entryexit(level, fmt, ...) \
518 vxge_debug_ll(level, VXGE_DEBUG_ENTRYEXIT, fmt, __VA_ARGS__)
520 #define vxge_debug_entryexit(level, fmt, ...)
523 #if (VXGE_DEBUG_INTR & VXGE_DEBUG_MASK)
524 #define vxge_debug_intr(level, fmt, ...) \
525 vxge_debug_ll(level, VXGE_DEBUG_INTR, fmt, __VA_ARGS__)
527 #define vxge_debug_intr(level, fmt, ...)
530 #define VXGE_DEVICE_DEBUG_LEVEL_SET(level, mask, vdev) {\
531 vxge_hw_device_debug_set((struct __vxge_hw_device *)vdev->devh, \
533 VXGE_COPY_DEBUG_INFO_TO_LL(vdev, \
534 vxge_hw_device_error_level_get((struct __vxge_hw_device *) \
536 vxge_hw_device_trace_level_get((struct __vxge_hw_device *) \
541 #define vxge_tcp_mss(skb) (skb_shinfo(skb)->gso_size)
542 #define vxge_udp_mss(skb) (skb_shinfo(skb)->gso_size)
543 #define vxge_offload_type(skb) (skb_shinfo(skb)->gso_type)