1 /************************************************************************
2 * s2io.c: A Linux PCI-X Ethernet driver for Neterion 10GbE Server NIC
3 * Copyright(c) 2002-2007 Neterion Inc.
5 * This software may be used and distributed according to the terms of
6 * the GNU General Public License (GPL), incorporated herein by reference.
7 * Drivers based on or derived from this code fall under the GPL and must
8 * retain the authorship, copyright and license notice. This file is not
9 * a complete program and may only be used when the entire operating
10 * system is licensed under the GPL.
11 * See the file COPYING in this distribution for more information.
14 * Jeff Garzik : For pointing out the improper error condition
15 * check in the s2io_xmit routine and also some
16 * issues in the Tx watch dog function. Also for
17 * patiently answering all those innumerable
18 * questions regaring the 2.6 porting issues.
19 * Stephen Hemminger : Providing proper 2.6 porting mechanism for some
20 * macros available only in 2.6 Kernel.
21 * Francois Romieu : For pointing out all code part that were
22 * deprecated and also styling related comments.
23 * Grant Grundler : For helping me get rid of some Architecture
25 * Christopher Hellwig : Some more 2.6 specific issues in the driver.
27 * The module loadable parameters that are supported by the driver and a brief
28 * explaination of all the variables.
30 * rx_ring_num : This can be used to program the number of receive rings used
32 * rx_ring_sz: This defines the number of receive blocks each ring can have.
33 * This is also an array of size 8.
34 * rx_ring_mode: This defines the operation mode of all 8 rings. The valid
36 * tx_fifo_num: This defines the number of Tx FIFOs thats used int the driver.
37 * tx_fifo_len: This too is an array of 8. Each element defines the number of
38 * Tx descriptors that can be associated with each corresponding FIFO.
39 * intr_type: This defines the type of interrupt. The values can be 0(INTA),
40 * 2(MSI_X). Default value is '2(MSI_X)'
41 * lro: Specifies whether to enable Large Receive Offload (LRO) or not.
42 * Possible values '1' for enable '0' for disable. Default is '0'
43 * lro_max_pkts: This parameter defines maximum number of packets can be
44 * aggregated as a single large packet
45 * napi: This parameter used to enable/disable NAPI (polling Rx)
46 * Possible values '1' for enable and '0' for disable. Default is '1'
47 * ufo: This parameter used to enable/disable UDP Fragmentation Offload(UFO)
48 * Possible values '1' for enable and '0' for disable. Default is '0'
49 * vlan_tag_strip: This can be used to enable or disable vlan stripping.
50 * Possible values '1' for enable , '0' for disable.
51 * Default is '2' - which means disable in promisc mode
52 * and enable in non-promiscuous mode.
53 ************************************************************************/
55 #include <linux/module.h>
56 #include <linux/types.h>
57 #include <linux/errno.h>
58 #include <linux/ioport.h>
59 #include <linux/pci.h>
60 #include <linux/dma-mapping.h>
61 #include <linux/kernel.h>
62 #include <linux/netdevice.h>
63 #include <linux/etherdevice.h>
64 #include <linux/skbuff.h>
65 #include <linux/init.h>
66 #include <linux/delay.h>
67 #include <linux/stddef.h>
68 #include <linux/ioctl.h>
69 #include <linux/timex.h>
70 #include <linux/ethtool.h>
71 #include <linux/workqueue.h>
72 #include <linux/if_vlan.h>
74 #include <linux/tcp.h>
77 #include <asm/system.h>
78 #include <asm/uaccess.h>
80 #include <asm/div64.h>
85 #include "s2io-regs.h"
87 #define DRV_VERSION "2.0.26.2"
89 /* S2io Driver name & version. */
90 static char s2io_driver_name
[] = "Neterion";
91 static char s2io_driver_version
[] = DRV_VERSION
;
93 static int rxd_size
[2] = {32,48};
94 static int rxd_count
[2] = {127,85};
96 static inline int RXD_IS_UP2DT(struct RxD_t
*rxdp
)
100 ret
= ((!(rxdp
->Control_1
& RXD_OWN_XENA
)) &&
101 (GET_RXD_MARKER(rxdp
->Control_2
) != THE_RXD_MARK
));
107 * Cards with following subsystem_id have a link state indication
108 * problem, 600B, 600C, 600D, 640B, 640C and 640D.
109 * macro below identifies these cards given the subsystem_id.
111 #define CARDS_WITH_FAULTY_LINK_INDICATORS(dev_type, subid) \
112 (dev_type == XFRAME_I_DEVICE) ? \
113 ((((subid >= 0x600B) && (subid <= 0x600D)) || \
114 ((subid >= 0x640B) && (subid <= 0x640D))) ? 1 : 0) : 0
116 #define LINK_IS_UP(val64) (!(val64 & (ADAPTER_STATUS_RMAC_REMOTE_FAULT | \
117 ADAPTER_STATUS_RMAC_LOCAL_FAULT)))
118 #define TASKLET_IN_USE test_and_set_bit(0, (&sp->tasklet_status))
121 static inline int rx_buffer_level(struct s2io_nic
* sp
, int rxb_size
, int ring
)
123 struct mac_info
*mac_control
;
125 mac_control
= &sp
->mac_control
;
126 if (rxb_size
<= rxd_count
[sp
->rxd_mode
])
128 else if ((mac_control
->rings
[ring
].pkt_cnt
- rxb_size
) > 16)
133 static inline int is_s2io_card_up(const struct s2io_nic
* sp
)
135 return test_bit(__S2IO_STATE_CARD_UP
, &sp
->state
);
138 /* Ethtool related variables and Macros. */
139 static char s2io_gstrings
[][ETH_GSTRING_LEN
] = {
140 "Register test\t(offline)",
141 "Eeprom test\t(offline)",
142 "Link test\t(online)",
143 "RLDRAM test\t(offline)",
144 "BIST Test\t(offline)"
147 static char ethtool_xena_stats_keys
[][ETH_GSTRING_LEN
] = {
149 {"tmac_data_octets"},
153 {"tmac_pause_ctrl_frms"},
157 {"tmac_any_err_frms"},
158 {"tmac_ttl_less_fb_octets"},
159 {"tmac_vld_ip_octets"},
167 {"rmac_data_octets"},
168 {"rmac_fcs_err_frms"},
170 {"rmac_vld_mcst_frms"},
171 {"rmac_vld_bcst_frms"},
172 {"rmac_in_rng_len_err_frms"},
173 {"rmac_out_rng_len_err_frms"},
175 {"rmac_pause_ctrl_frms"},
176 {"rmac_unsup_ctrl_frms"},
178 {"rmac_accepted_ucst_frms"},
179 {"rmac_accepted_nucst_frms"},
180 {"rmac_discarded_frms"},
181 {"rmac_drop_events"},
182 {"rmac_ttl_less_fb_octets"},
184 {"rmac_usized_frms"},
185 {"rmac_osized_frms"},
187 {"rmac_jabber_frms"},
188 {"rmac_ttl_64_frms"},
189 {"rmac_ttl_65_127_frms"},
190 {"rmac_ttl_128_255_frms"},
191 {"rmac_ttl_256_511_frms"},
192 {"rmac_ttl_512_1023_frms"},
193 {"rmac_ttl_1024_1518_frms"},
201 {"rmac_err_drp_udp"},
202 {"rmac_xgmii_err_sym"},
220 {"rmac_xgmii_data_err_cnt"},
221 {"rmac_xgmii_ctrl_err_cnt"},
222 {"rmac_accepted_ip"},
226 {"new_rd_req_rtry_cnt"},
228 {"wr_rtry_rd_ack_cnt"},
231 {"new_wr_req_rtry_cnt"},
234 {"rd_rtry_wr_ack_cnt"},
244 static char ethtool_enhanced_stats_keys
[][ETH_GSTRING_LEN
] = {
245 {"rmac_ttl_1519_4095_frms"},
246 {"rmac_ttl_4096_8191_frms"},
247 {"rmac_ttl_8192_max_frms"},
248 {"rmac_ttl_gt_max_frms"},
249 {"rmac_osized_alt_frms"},
250 {"rmac_jabber_alt_frms"},
251 {"rmac_gt_max_alt_frms"},
253 {"rmac_len_discard"},
254 {"rmac_fcs_discard"},
257 {"rmac_red_discard"},
258 {"rmac_rts_discard"},
259 {"rmac_ingm_full_discard"},
263 static char ethtool_driver_stats_keys
[][ETH_GSTRING_LEN
] = {
264 {"\n DRIVER STATISTICS"},
265 {"single_bit_ecc_errs"},
266 {"double_bit_ecc_errs"},
279 ("alarm_transceiver_temp_high"),
280 ("alarm_transceiver_temp_low"),
281 ("alarm_laser_bias_current_high"),
282 ("alarm_laser_bias_current_low"),
283 ("alarm_laser_output_power_high"),
284 ("alarm_laser_output_power_low"),
285 ("warn_transceiver_temp_high"),
286 ("warn_transceiver_temp_low"),
287 ("warn_laser_bias_current_high"),
288 ("warn_laser_bias_current_low"),
289 ("warn_laser_output_power_high"),
290 ("warn_laser_output_power_low"),
291 ("lro_aggregated_pkts"),
292 ("lro_flush_both_count"),
293 ("lro_out_of_sequence_pkts"),
294 ("lro_flush_due_to_max_pkts"),
295 ("lro_avg_aggr_pkts"),
296 ("mem_alloc_fail_cnt"),
297 ("pci_map_fail_cnt"),
298 ("watchdog_timer_cnt"),
305 ("tx_tcode_buf_abort_cnt"),
306 ("tx_tcode_desc_abort_cnt"),
307 ("tx_tcode_parity_err_cnt"),
308 ("tx_tcode_link_loss_cnt"),
309 ("tx_tcode_list_proc_err_cnt"),
310 ("rx_tcode_parity_err_cnt"),
311 ("rx_tcode_abort_cnt"),
312 ("rx_tcode_parity_abort_cnt"),
313 ("rx_tcode_rda_fail_cnt"),
314 ("rx_tcode_unkn_prot_cnt"),
315 ("rx_tcode_fcs_err_cnt"),
316 ("rx_tcode_buf_size_err_cnt"),
317 ("rx_tcode_rxd_corrupt_cnt"),
318 ("rx_tcode_unkn_err_cnt"),
326 {"mac_tmac_err_cnt"},
327 {"mac_rmac_err_cnt"},
328 {"xgxs_txgxs_err_cnt"},
329 {"xgxs_rxgxs_err_cnt"},
331 {"prc_pcix_err_cnt"},
338 #define S2IO_XENA_STAT_LEN sizeof(ethtool_xena_stats_keys)/ ETH_GSTRING_LEN
339 #define S2IO_ENHANCED_STAT_LEN sizeof(ethtool_enhanced_stats_keys)/ \
341 #define S2IO_DRIVER_STAT_LEN sizeof(ethtool_driver_stats_keys)/ ETH_GSTRING_LEN
343 #define XFRAME_I_STAT_LEN (S2IO_XENA_STAT_LEN + S2IO_DRIVER_STAT_LEN )
344 #define XFRAME_II_STAT_LEN (XFRAME_I_STAT_LEN + S2IO_ENHANCED_STAT_LEN )
346 #define XFRAME_I_STAT_STRINGS_LEN ( XFRAME_I_STAT_LEN * ETH_GSTRING_LEN )
347 #define XFRAME_II_STAT_STRINGS_LEN ( XFRAME_II_STAT_LEN * ETH_GSTRING_LEN )
349 #define S2IO_TEST_LEN sizeof(s2io_gstrings) / ETH_GSTRING_LEN
350 #define S2IO_STRINGS_LEN S2IO_TEST_LEN * ETH_GSTRING_LEN
352 #define S2IO_TIMER_CONF(timer, handle, arg, exp) \
353 init_timer(&timer); \
354 timer.function = handle; \
355 timer.data = (unsigned long) arg; \
356 mod_timer(&timer, (jiffies + exp)) \
359 static void s2io_vlan_rx_register(struct net_device
*dev
,
360 struct vlan_group
*grp
)
362 struct s2io_nic
*nic
= dev
->priv
;
365 spin_lock_irqsave(&nic
->tx_lock
, flags
);
367 spin_unlock_irqrestore(&nic
->tx_lock
, flags
);
370 /* A flag indicating whether 'RX_PA_CFG_STRIP_VLAN_TAG' bit is set or not */
371 static int vlan_strip_flag
;
374 * Constants to be programmed into the Xena's registers, to configure
379 static const u64 herc_act_dtx_cfg
[] = {
381 0x8000051536750000ULL
, 0x80000515367500E0ULL
,
383 0x8000051536750004ULL
, 0x80000515367500E4ULL
,
385 0x80010515003F0000ULL
, 0x80010515003F00E0ULL
,
387 0x80010515003F0004ULL
, 0x80010515003F00E4ULL
,
389 0x801205150D440000ULL
, 0x801205150D4400E0ULL
,
391 0x801205150D440004ULL
, 0x801205150D4400E4ULL
,
393 0x80020515F2100000ULL
, 0x80020515F21000E0ULL
,
395 0x80020515F2100004ULL
, 0x80020515F21000E4ULL
,
400 static const u64 xena_dtx_cfg
[] = {
402 0x8000051500000000ULL
, 0x80000515000000E0ULL
,
404 0x80000515D9350004ULL
, 0x80000515D93500E4ULL
,
406 0x8001051500000000ULL
, 0x80010515000000E0ULL
,
408 0x80010515001E0004ULL
, 0x80010515001E00E4ULL
,
410 0x8002051500000000ULL
, 0x80020515000000E0ULL
,
412 0x80020515F2100004ULL
, 0x80020515F21000E4ULL
,
417 * Constants for Fixing the MacAddress problem seen mostly on
420 static const u64 fix_mac
[] = {
421 0x0060000000000000ULL
, 0x0060600000000000ULL
,
422 0x0040600000000000ULL
, 0x0000600000000000ULL
,
423 0x0020600000000000ULL
, 0x0060600000000000ULL
,
424 0x0020600000000000ULL
, 0x0060600000000000ULL
,
425 0x0020600000000000ULL
, 0x0060600000000000ULL
,
426 0x0020600000000000ULL
, 0x0060600000000000ULL
,
427 0x0020600000000000ULL
, 0x0060600000000000ULL
,
428 0x0020600000000000ULL
, 0x0060600000000000ULL
,
429 0x0020600000000000ULL
, 0x0060600000000000ULL
,
430 0x0020600000000000ULL
, 0x0060600000000000ULL
,
431 0x0020600000000000ULL
, 0x0060600000000000ULL
,
432 0x0020600000000000ULL
, 0x0060600000000000ULL
,
433 0x0020600000000000ULL
, 0x0000600000000000ULL
,
434 0x0040600000000000ULL
, 0x0060600000000000ULL
,
438 MODULE_LICENSE("GPL");
439 MODULE_VERSION(DRV_VERSION
);
442 /* Module Loadable parameters. */
443 S2IO_PARM_INT(tx_fifo_num
, 1);
444 S2IO_PARM_INT(rx_ring_num
, 1);
447 S2IO_PARM_INT(rx_ring_mode
, 1);
448 S2IO_PARM_INT(use_continuous_tx_intrs
, 1);
449 S2IO_PARM_INT(rmac_pause_time
, 0x100);
450 S2IO_PARM_INT(mc_pause_threshold_q0q3
, 187);
451 S2IO_PARM_INT(mc_pause_threshold_q4q7
, 187);
452 S2IO_PARM_INT(shared_splits
, 0);
453 S2IO_PARM_INT(tmac_util_period
, 5);
454 S2IO_PARM_INT(rmac_util_period
, 5);
455 S2IO_PARM_INT(bimodal
, 0);
456 S2IO_PARM_INT(l3l4hdr_size
, 128);
457 /* Frequency of Rx desc syncs expressed as power of 2 */
458 S2IO_PARM_INT(rxsync_frequency
, 3);
459 /* Interrupt type. Values can be 0(INTA), 2(MSI_X) */
460 S2IO_PARM_INT(intr_type
, 2);
461 /* Large receive offload feature */
462 S2IO_PARM_INT(lro
, 0);
463 /* Max pkts to be aggregated by LRO at one time. If not specified,
464 * aggregation happens until we hit max IP pkt size(64K)
466 S2IO_PARM_INT(lro_max_pkts
, 0xFFFF);
467 S2IO_PARM_INT(indicate_max_pkts
, 0);
469 S2IO_PARM_INT(napi
, 1);
470 S2IO_PARM_INT(ufo
, 0);
471 S2IO_PARM_INT(vlan_tag_strip
, NO_STRIP_IN_PROMISC
);
473 static unsigned int tx_fifo_len
[MAX_TX_FIFOS
] =
474 {DEFAULT_FIFO_0_LEN
, [1 ...(MAX_TX_FIFOS
- 1)] = DEFAULT_FIFO_1_7_LEN
};
475 static unsigned int rx_ring_sz
[MAX_RX_RINGS
] =
476 {[0 ...(MAX_RX_RINGS
- 1)] = SMALL_BLK_CNT
};
477 static unsigned int rts_frm_len
[MAX_RX_RINGS
] =
478 {[0 ...(MAX_RX_RINGS
- 1)] = 0 };
480 module_param_array(tx_fifo_len
, uint
, NULL
, 0);
481 module_param_array(rx_ring_sz
, uint
, NULL
, 0);
482 module_param_array(rts_frm_len
, uint
, NULL
, 0);
486 * This table lists all the devices that this driver supports.
488 static struct pci_device_id s2io_tbl
[] __devinitdata
= {
489 {PCI_VENDOR_ID_S2IO
, PCI_DEVICE_ID_S2IO_WIN
,
490 PCI_ANY_ID
, PCI_ANY_ID
},
491 {PCI_VENDOR_ID_S2IO
, PCI_DEVICE_ID_S2IO_UNI
,
492 PCI_ANY_ID
, PCI_ANY_ID
},
493 {PCI_VENDOR_ID_S2IO
, PCI_DEVICE_ID_HERC_WIN
,
494 PCI_ANY_ID
, PCI_ANY_ID
},
495 {PCI_VENDOR_ID_S2IO
, PCI_DEVICE_ID_HERC_UNI
,
496 PCI_ANY_ID
, PCI_ANY_ID
},
500 MODULE_DEVICE_TABLE(pci
, s2io_tbl
);
502 static struct pci_error_handlers s2io_err_handler
= {
503 .error_detected
= s2io_io_error_detected
,
504 .slot_reset
= s2io_io_slot_reset
,
505 .resume
= s2io_io_resume
,
508 static struct pci_driver s2io_driver
= {
510 .id_table
= s2io_tbl
,
511 .probe
= s2io_init_nic
,
512 .remove
= __devexit_p(s2io_rem_nic
),
513 .err_handler
= &s2io_err_handler
,
516 /* A simplifier macro used both by init and free shared_mem Fns(). */
517 #define TXD_MEM_PAGE_CNT(len, per_each) ((len+per_each - 1) / per_each)
520 * init_shared_mem - Allocation and Initialization of Memory
521 * @nic: Device private variable.
522 * Description: The function allocates all the memory areas shared
523 * between the NIC and the driver. This includes Tx descriptors,
524 * Rx descriptors and the statistics block.
527 static int init_shared_mem(struct s2io_nic
*nic
)
530 void *tmp_v_addr
, *tmp_v_addr_next
;
531 dma_addr_t tmp_p_addr
, tmp_p_addr_next
;
532 struct RxD_block
*pre_rxd_blk
= NULL
;
534 int lst_size
, lst_per_page
;
535 struct net_device
*dev
= nic
->dev
;
539 struct mac_info
*mac_control
;
540 struct config_param
*config
;
541 unsigned long long mem_allocated
= 0;
543 mac_control
= &nic
->mac_control
;
544 config
= &nic
->config
;
547 /* Allocation and initialization of TXDLs in FIOFs */
549 for (i
= 0; i
< config
->tx_fifo_num
; i
++) {
550 size
+= config
->tx_cfg
[i
].fifo_len
;
552 if (size
> MAX_AVAILABLE_TXDS
) {
553 DBG_PRINT(ERR_DBG
, "s2io: Requested TxDs too high, ");
554 DBG_PRINT(ERR_DBG
, "Requested: %d, max supported: 8192\n", size
);
558 lst_size
= (sizeof(struct TxD
) * config
->max_txds
);
559 lst_per_page
= PAGE_SIZE
/ lst_size
;
561 for (i
= 0; i
< config
->tx_fifo_num
; i
++) {
562 int fifo_len
= config
->tx_cfg
[i
].fifo_len
;
563 int list_holder_size
= fifo_len
* sizeof(struct list_info_hold
);
564 mac_control
->fifos
[i
].list_info
= kmalloc(list_holder_size
,
566 if (!mac_control
->fifos
[i
].list_info
) {
568 "Malloc failed for list_info\n");
571 mem_allocated
+= list_holder_size
;
572 memset(mac_control
->fifos
[i
].list_info
, 0, list_holder_size
);
574 for (i
= 0; i
< config
->tx_fifo_num
; i
++) {
575 int page_num
= TXD_MEM_PAGE_CNT(config
->tx_cfg
[i
].fifo_len
,
577 mac_control
->fifos
[i
].tx_curr_put_info
.offset
= 0;
578 mac_control
->fifos
[i
].tx_curr_put_info
.fifo_len
=
579 config
->tx_cfg
[i
].fifo_len
- 1;
580 mac_control
->fifos
[i
].tx_curr_get_info
.offset
= 0;
581 mac_control
->fifos
[i
].tx_curr_get_info
.fifo_len
=
582 config
->tx_cfg
[i
].fifo_len
- 1;
583 mac_control
->fifos
[i
].fifo_no
= i
;
584 mac_control
->fifos
[i
].nic
= nic
;
585 mac_control
->fifos
[i
].max_txds
= MAX_SKB_FRAGS
+ 2;
587 for (j
= 0; j
< page_num
; j
++) {
591 tmp_v
= pci_alloc_consistent(nic
->pdev
,
595 "pci_alloc_consistent ");
596 DBG_PRINT(INFO_DBG
, "failed for TxDL\n");
599 /* If we got a zero DMA address(can happen on
600 * certain platforms like PPC), reallocate.
601 * Store virtual address of page we don't want,
605 mac_control
->zerodma_virt_addr
= tmp_v
;
607 "%s: Zero DMA address for TxDL. ", dev
->name
);
609 "Virtual address %p\n", tmp_v
);
610 tmp_v
= pci_alloc_consistent(nic
->pdev
,
614 "pci_alloc_consistent ");
615 DBG_PRINT(INFO_DBG
, "failed for TxDL\n");
618 mem_allocated
+= PAGE_SIZE
;
620 while (k
< lst_per_page
) {
621 int l
= (j
* lst_per_page
) + k
;
622 if (l
== config
->tx_cfg
[i
].fifo_len
)
624 mac_control
->fifos
[i
].list_info
[l
].list_virt_addr
=
625 tmp_v
+ (k
* lst_size
);
626 mac_control
->fifos
[i
].list_info
[l
].list_phy_addr
=
627 tmp_p
+ (k
* lst_size
);
633 nic
->ufo_in_band_v
= kcalloc(size
, sizeof(u64
), GFP_KERNEL
);
634 if (!nic
->ufo_in_band_v
)
636 mem_allocated
+= (size
* sizeof(u64
));
638 /* Allocation and initialization of RXDs in Rings */
640 for (i
= 0; i
< config
->rx_ring_num
; i
++) {
641 if (config
->rx_cfg
[i
].num_rxd
%
642 (rxd_count
[nic
->rxd_mode
] + 1)) {
643 DBG_PRINT(ERR_DBG
, "%s: RxD count of ", dev
->name
);
644 DBG_PRINT(ERR_DBG
, "Ring%d is not a multiple of ",
646 DBG_PRINT(ERR_DBG
, "RxDs per Block");
649 size
+= config
->rx_cfg
[i
].num_rxd
;
650 mac_control
->rings
[i
].block_count
=
651 config
->rx_cfg
[i
].num_rxd
/
652 (rxd_count
[nic
->rxd_mode
] + 1 );
653 mac_control
->rings
[i
].pkt_cnt
= config
->rx_cfg
[i
].num_rxd
-
654 mac_control
->rings
[i
].block_count
;
656 if (nic
->rxd_mode
== RXD_MODE_1
)
657 size
= (size
* (sizeof(struct RxD1
)));
659 size
= (size
* (sizeof(struct RxD3
)));
661 for (i
= 0; i
< config
->rx_ring_num
; i
++) {
662 mac_control
->rings
[i
].rx_curr_get_info
.block_index
= 0;
663 mac_control
->rings
[i
].rx_curr_get_info
.offset
= 0;
664 mac_control
->rings
[i
].rx_curr_get_info
.ring_len
=
665 config
->rx_cfg
[i
].num_rxd
- 1;
666 mac_control
->rings
[i
].rx_curr_put_info
.block_index
= 0;
667 mac_control
->rings
[i
].rx_curr_put_info
.offset
= 0;
668 mac_control
->rings
[i
].rx_curr_put_info
.ring_len
=
669 config
->rx_cfg
[i
].num_rxd
- 1;
670 mac_control
->rings
[i
].nic
= nic
;
671 mac_control
->rings
[i
].ring_no
= i
;
673 blk_cnt
= config
->rx_cfg
[i
].num_rxd
/
674 (rxd_count
[nic
->rxd_mode
] + 1);
675 /* Allocating all the Rx blocks */
676 for (j
= 0; j
< blk_cnt
; j
++) {
677 struct rx_block_info
*rx_blocks
;
680 rx_blocks
= &mac_control
->rings
[i
].rx_blocks
[j
];
681 size
= SIZE_OF_BLOCK
; //size is always page size
682 tmp_v_addr
= pci_alloc_consistent(nic
->pdev
, size
,
684 if (tmp_v_addr
== NULL
) {
686 * In case of failure, free_shared_mem()
687 * is called, which should free any
688 * memory that was alloced till the
691 rx_blocks
->block_virt_addr
= tmp_v_addr
;
694 mem_allocated
+= size
;
695 memset(tmp_v_addr
, 0, size
);
696 rx_blocks
->block_virt_addr
= tmp_v_addr
;
697 rx_blocks
->block_dma_addr
= tmp_p_addr
;
698 rx_blocks
->rxds
= kmalloc(sizeof(struct rxd_info
)*
699 rxd_count
[nic
->rxd_mode
],
701 if (!rx_blocks
->rxds
)
704 (sizeof(struct rxd_info
)* rxd_count
[nic
->rxd_mode
]);
705 for (l
=0; l
<rxd_count
[nic
->rxd_mode
];l
++) {
706 rx_blocks
->rxds
[l
].virt_addr
=
707 rx_blocks
->block_virt_addr
+
708 (rxd_size
[nic
->rxd_mode
] * l
);
709 rx_blocks
->rxds
[l
].dma_addr
=
710 rx_blocks
->block_dma_addr
+
711 (rxd_size
[nic
->rxd_mode
] * l
);
714 /* Interlinking all Rx Blocks */
715 for (j
= 0; j
< blk_cnt
; j
++) {
717 mac_control
->rings
[i
].rx_blocks
[j
].block_virt_addr
;
719 mac_control
->rings
[i
].rx_blocks
[(j
+ 1) %
720 blk_cnt
].block_virt_addr
;
722 mac_control
->rings
[i
].rx_blocks
[j
].block_dma_addr
;
724 mac_control
->rings
[i
].rx_blocks
[(j
+ 1) %
725 blk_cnt
].block_dma_addr
;
727 pre_rxd_blk
= (struct RxD_block
*) tmp_v_addr
;
728 pre_rxd_blk
->reserved_2_pNext_RxD_block
=
729 (unsigned long) tmp_v_addr_next
;
730 pre_rxd_blk
->pNext_RxD_Blk_physical
=
731 (u64
) tmp_p_addr_next
;
734 if (nic
->rxd_mode
== RXD_MODE_3B
) {
736 * Allocation of Storages for buffer addresses in 2BUFF mode
737 * and the buffers as well.
739 for (i
= 0; i
< config
->rx_ring_num
; i
++) {
740 blk_cnt
= config
->rx_cfg
[i
].num_rxd
/
741 (rxd_count
[nic
->rxd_mode
]+ 1);
742 mac_control
->rings
[i
].ba
=
743 kmalloc((sizeof(struct buffAdd
*) * blk_cnt
),
745 if (!mac_control
->rings
[i
].ba
)
747 mem_allocated
+=(sizeof(struct buffAdd
*) * blk_cnt
);
748 for (j
= 0; j
< blk_cnt
; j
++) {
750 mac_control
->rings
[i
].ba
[j
] =
751 kmalloc((sizeof(struct buffAdd
) *
752 (rxd_count
[nic
->rxd_mode
] + 1)),
754 if (!mac_control
->rings
[i
].ba
[j
])
756 mem_allocated
+= (sizeof(struct buffAdd
) * \
757 (rxd_count
[nic
->rxd_mode
] + 1));
758 while (k
!= rxd_count
[nic
->rxd_mode
]) {
759 ba
= &mac_control
->rings
[i
].ba
[j
][k
];
761 ba
->ba_0_org
= (void *) kmalloc
762 (BUF0_LEN
+ ALIGN_SIZE
, GFP_KERNEL
);
766 (BUF0_LEN
+ ALIGN_SIZE
);
767 tmp
= (unsigned long)ba
->ba_0_org
;
769 tmp
&= ~((unsigned long) ALIGN_SIZE
);
770 ba
->ba_0
= (void *) tmp
;
772 ba
->ba_1_org
= (void *) kmalloc
773 (BUF1_LEN
+ ALIGN_SIZE
, GFP_KERNEL
);
777 += (BUF1_LEN
+ ALIGN_SIZE
);
778 tmp
= (unsigned long) ba
->ba_1_org
;
780 tmp
&= ~((unsigned long) ALIGN_SIZE
);
781 ba
->ba_1
= (void *) tmp
;
788 /* Allocation and initialization of Statistics block */
789 size
= sizeof(struct stat_block
);
790 mac_control
->stats_mem
= pci_alloc_consistent
791 (nic
->pdev
, size
, &mac_control
->stats_mem_phy
);
793 if (!mac_control
->stats_mem
) {
795 * In case of failure, free_shared_mem() is called, which
796 * should free any memory that was alloced till the
801 mem_allocated
+= size
;
802 mac_control
->stats_mem_sz
= size
;
804 tmp_v_addr
= mac_control
->stats_mem
;
805 mac_control
->stats_info
= (struct stat_block
*) tmp_v_addr
;
806 memset(tmp_v_addr
, 0, size
);
807 DBG_PRINT(INIT_DBG
, "%s:Ring Mem PHY: 0x%llx\n", dev
->name
,
808 (unsigned long long) tmp_p_addr
);
809 mac_control
->stats_info
->sw_stat
.mem_allocated
+= mem_allocated
;
814 * free_shared_mem - Free the allocated Memory
815 * @nic: Device private variable.
816 * Description: This function is to free all memory locations allocated by
817 * the init_shared_mem() function and return it to the kernel.
820 static void free_shared_mem(struct s2io_nic
*nic
)
822 int i
, j
, blk_cnt
, size
;
825 dma_addr_t tmp_p_addr
;
826 struct mac_info
*mac_control
;
827 struct config_param
*config
;
828 int lst_size
, lst_per_page
;
829 struct net_device
*dev
;
837 mac_control
= &nic
->mac_control
;
838 config
= &nic
->config
;
840 lst_size
= (sizeof(struct TxD
) * config
->max_txds
);
841 lst_per_page
= PAGE_SIZE
/ lst_size
;
843 for (i
= 0; i
< config
->tx_fifo_num
; i
++) {
844 ufo_size
+= config
->tx_cfg
[i
].fifo_len
;
845 page_num
= TXD_MEM_PAGE_CNT(config
->tx_cfg
[i
].fifo_len
,
847 for (j
= 0; j
< page_num
; j
++) {
848 int mem_blks
= (j
* lst_per_page
);
849 if (!mac_control
->fifos
[i
].list_info
)
851 if (!mac_control
->fifos
[i
].list_info
[mem_blks
].
854 pci_free_consistent(nic
->pdev
, PAGE_SIZE
,
855 mac_control
->fifos
[i
].
858 mac_control
->fifos
[i
].
861 nic
->mac_control
.stats_info
->sw_stat
.mem_freed
864 /* If we got a zero DMA address during allocation,
867 if (mac_control
->zerodma_virt_addr
) {
868 pci_free_consistent(nic
->pdev
, PAGE_SIZE
,
869 mac_control
->zerodma_virt_addr
,
872 "%s: Freeing TxDL with zero DMA addr. ",
874 DBG_PRINT(INIT_DBG
, "Virtual address %p\n",
875 mac_control
->zerodma_virt_addr
);
876 nic
->mac_control
.stats_info
->sw_stat
.mem_freed
879 kfree(mac_control
->fifos
[i
].list_info
);
880 nic
->mac_control
.stats_info
->sw_stat
.mem_freed
+=
881 (nic
->config
.tx_cfg
[i
].fifo_len
*sizeof(struct list_info_hold
));
884 size
= SIZE_OF_BLOCK
;
885 for (i
= 0; i
< config
->rx_ring_num
; i
++) {
886 blk_cnt
= mac_control
->rings
[i
].block_count
;
887 for (j
= 0; j
< blk_cnt
; j
++) {
888 tmp_v_addr
= mac_control
->rings
[i
].rx_blocks
[j
].
890 tmp_p_addr
= mac_control
->rings
[i
].rx_blocks
[j
].
892 if (tmp_v_addr
== NULL
)
894 pci_free_consistent(nic
->pdev
, size
,
895 tmp_v_addr
, tmp_p_addr
);
896 nic
->mac_control
.stats_info
->sw_stat
.mem_freed
+= size
;
897 kfree(mac_control
->rings
[i
].rx_blocks
[j
].rxds
);
898 nic
->mac_control
.stats_info
->sw_stat
.mem_freed
+=
899 ( sizeof(struct rxd_info
)* rxd_count
[nic
->rxd_mode
]);
903 if (nic
->rxd_mode
== RXD_MODE_3B
) {
904 /* Freeing buffer storage addresses in 2BUFF mode. */
905 for (i
= 0; i
< config
->rx_ring_num
; i
++) {
906 blk_cnt
= config
->rx_cfg
[i
].num_rxd
/
907 (rxd_count
[nic
->rxd_mode
] + 1);
908 for (j
= 0; j
< blk_cnt
; j
++) {
910 if (!mac_control
->rings
[i
].ba
[j
])
912 while (k
!= rxd_count
[nic
->rxd_mode
]) {
914 &mac_control
->rings
[i
].ba
[j
][k
];
916 nic
->mac_control
.stats_info
->sw_stat
.\
917 mem_freed
+= (BUF0_LEN
+ ALIGN_SIZE
);
919 nic
->mac_control
.stats_info
->sw_stat
.\
920 mem_freed
+= (BUF1_LEN
+ ALIGN_SIZE
);
923 kfree(mac_control
->rings
[i
].ba
[j
]);
924 nic
->mac_control
.stats_info
->sw_stat
.mem_freed
+=
925 (sizeof(struct buffAdd
) *
926 (rxd_count
[nic
->rxd_mode
] + 1));
928 kfree(mac_control
->rings
[i
].ba
);
929 nic
->mac_control
.stats_info
->sw_stat
.mem_freed
+=
930 (sizeof(struct buffAdd
*) * blk_cnt
);
934 if (mac_control
->stats_mem
) {
935 pci_free_consistent(nic
->pdev
,
936 mac_control
->stats_mem_sz
,
937 mac_control
->stats_mem
,
938 mac_control
->stats_mem_phy
);
939 nic
->mac_control
.stats_info
->sw_stat
.mem_freed
+=
940 mac_control
->stats_mem_sz
;
942 if (nic
->ufo_in_band_v
) {
943 kfree(nic
->ufo_in_band_v
);
944 nic
->mac_control
.stats_info
->sw_stat
.mem_freed
945 += (ufo_size
* sizeof(u64
));
950 * s2io_verify_pci_mode -
953 static int s2io_verify_pci_mode(struct s2io_nic
*nic
)
955 struct XENA_dev_config __iomem
*bar0
= nic
->bar0
;
956 register u64 val64
= 0;
959 val64
= readq(&bar0
->pci_mode
);
960 mode
= (u8
)GET_PCI_MODE(val64
);
962 if ( val64
& PCI_MODE_UNKNOWN_MODE
)
963 return -1; /* Unknown PCI mode */
967 #define NEC_VENID 0x1033
968 #define NEC_DEVID 0x0125
969 static int s2io_on_nec_bridge(struct pci_dev
*s2io_pdev
)
971 struct pci_dev
*tdev
= NULL
;
972 while ((tdev
= pci_get_device(PCI_ANY_ID
, PCI_ANY_ID
, tdev
)) != NULL
) {
973 if (tdev
->vendor
== NEC_VENID
&& tdev
->device
== NEC_DEVID
) {
974 if (tdev
->bus
== s2io_pdev
->bus
->parent
)
982 static int bus_speed
[8] = {33, 133, 133, 200, 266, 133, 200, 266};
984 * s2io_print_pci_mode -
986 static int s2io_print_pci_mode(struct s2io_nic
*nic
)
988 struct XENA_dev_config __iomem
*bar0
= nic
->bar0
;
989 register u64 val64
= 0;
991 struct config_param
*config
= &nic
->config
;
993 val64
= readq(&bar0
->pci_mode
);
994 mode
= (u8
)GET_PCI_MODE(val64
);
996 if ( val64
& PCI_MODE_UNKNOWN_MODE
)
997 return -1; /* Unknown PCI mode */
999 config
->bus_speed
= bus_speed
[mode
];
1001 if (s2io_on_nec_bridge(nic
->pdev
)) {
1002 DBG_PRINT(ERR_DBG
, "%s: Device is on PCI-E bus\n",
1007 if (val64
& PCI_MODE_32_BITS
) {
1008 DBG_PRINT(ERR_DBG
, "%s: Device is on 32 bit ", nic
->dev
->name
);
1010 DBG_PRINT(ERR_DBG
, "%s: Device is on 64 bit ", nic
->dev
->name
);
1014 case PCI_MODE_PCI_33
:
1015 DBG_PRINT(ERR_DBG
, "33MHz PCI bus\n");
1017 case PCI_MODE_PCI_66
:
1018 DBG_PRINT(ERR_DBG
, "66MHz PCI bus\n");
1020 case PCI_MODE_PCIX_M1_66
:
1021 DBG_PRINT(ERR_DBG
, "66MHz PCIX(M1) bus\n");
1023 case PCI_MODE_PCIX_M1_100
:
1024 DBG_PRINT(ERR_DBG
, "100MHz PCIX(M1) bus\n");
1026 case PCI_MODE_PCIX_M1_133
:
1027 DBG_PRINT(ERR_DBG
, "133MHz PCIX(M1) bus\n");
1029 case PCI_MODE_PCIX_M2_66
:
1030 DBG_PRINT(ERR_DBG
, "133MHz PCIX(M2) bus\n");
1032 case PCI_MODE_PCIX_M2_100
:
1033 DBG_PRINT(ERR_DBG
, "200MHz PCIX(M2) bus\n");
1035 case PCI_MODE_PCIX_M2_133
:
1036 DBG_PRINT(ERR_DBG
, "266MHz PCIX(M2) bus\n");
1039 return -1; /* Unsupported bus speed */
1046 * init_nic - Initialization of hardware
1047 * @nic: device peivate variable
1048 * Description: The function sequentially configures every block
1049 * of the H/W from their reset values.
1050 * Return Value: SUCCESS on success and
1051 * '-1' on failure (endian settings incorrect).
1054 static int init_nic(struct s2io_nic
*nic
)
1056 struct XENA_dev_config __iomem
*bar0
= nic
->bar0
;
1057 struct net_device
*dev
= nic
->dev
;
1058 register u64 val64
= 0;
1062 struct mac_info
*mac_control
;
1063 struct config_param
*config
;
1065 unsigned long long mem_share
;
1068 mac_control
= &nic
->mac_control
;
1069 config
= &nic
->config
;
1071 /* to set the swapper controle on the card */
1072 if(s2io_set_swapper(nic
)) {
1073 DBG_PRINT(ERR_DBG
,"ERROR: Setting Swapper failed\n");
1078 * Herc requires EOI to be removed from reset before XGXS, so..
1080 if (nic
->device_type
& XFRAME_II_DEVICE
) {
1081 val64
= 0xA500000000ULL
;
1082 writeq(val64
, &bar0
->sw_reset
);
1084 val64
= readq(&bar0
->sw_reset
);
1087 /* Remove XGXS from reset state */
1089 writeq(val64
, &bar0
->sw_reset
);
1091 val64
= readq(&bar0
->sw_reset
);
1093 /* Enable Receiving broadcasts */
1094 add
= &bar0
->mac_cfg
;
1095 val64
= readq(&bar0
->mac_cfg
);
1096 val64
|= MAC_RMAC_BCAST_ENABLE
;
1097 writeq(RMAC_CFG_KEY(0x4C0D), &bar0
->rmac_cfg_key
);
1098 writel((u32
) val64
, add
);
1099 writeq(RMAC_CFG_KEY(0x4C0D), &bar0
->rmac_cfg_key
);
1100 writel((u32
) (val64
>> 32), (add
+ 4));
1102 /* Read registers in all blocks */
1103 val64
= readq(&bar0
->mac_int_mask
);
1104 val64
= readq(&bar0
->mc_int_mask
);
1105 val64
= readq(&bar0
->xgxs_int_mask
);
1109 writeq(vBIT(val64
, 2, 14), &bar0
->rmac_max_pyld_len
);
1111 if (nic
->device_type
& XFRAME_II_DEVICE
) {
1112 while (herc_act_dtx_cfg
[dtx_cnt
] != END_SIGN
) {
1113 SPECIAL_REG_WRITE(herc_act_dtx_cfg
[dtx_cnt
],
1114 &bar0
->dtx_control
, UF
);
1116 msleep(1); /* Necessary!! */
1120 while (xena_dtx_cfg
[dtx_cnt
] != END_SIGN
) {
1121 SPECIAL_REG_WRITE(xena_dtx_cfg
[dtx_cnt
],
1122 &bar0
->dtx_control
, UF
);
1123 val64
= readq(&bar0
->dtx_control
);
1128 /* Tx DMA Initialization */
1130 writeq(val64
, &bar0
->tx_fifo_partition_0
);
1131 writeq(val64
, &bar0
->tx_fifo_partition_1
);
1132 writeq(val64
, &bar0
->tx_fifo_partition_2
);
1133 writeq(val64
, &bar0
->tx_fifo_partition_3
);
1136 for (i
= 0, j
= 0; i
< config
->tx_fifo_num
; i
++) {
1138 vBIT(config
->tx_cfg
[i
].fifo_len
- 1, ((i
* 32) + 19),
1139 13) | vBIT(config
->tx_cfg
[i
].fifo_priority
,
1142 if (i
== (config
->tx_fifo_num
- 1)) {
1149 writeq(val64
, &bar0
->tx_fifo_partition_0
);
1153 writeq(val64
, &bar0
->tx_fifo_partition_1
);
1157 writeq(val64
, &bar0
->tx_fifo_partition_2
);
1161 writeq(val64
, &bar0
->tx_fifo_partition_3
);
1167 * Disable 4 PCCs for Xena1, 2 and 3 as per H/W bug
1168 * SXE-008 TRANSMIT DMA ARBITRATION ISSUE.
1170 if ((nic
->device_type
== XFRAME_I_DEVICE
) &&
1171 (nic
->pdev
->revision
< 4))
1172 writeq(PCC_ENABLE_FOUR
, &bar0
->pcc_enable
);
1174 val64
= readq(&bar0
->tx_fifo_partition_0
);
1175 DBG_PRINT(INIT_DBG
, "Fifo partition at: 0x%p is: 0x%llx\n",
1176 &bar0
->tx_fifo_partition_0
, (unsigned long long) val64
);
1179 * Initialization of Tx_PA_CONFIG register to ignore packet
1180 * integrity checking.
1182 val64
= readq(&bar0
->tx_pa_cfg
);
1183 val64
|= TX_PA_CFG_IGNORE_FRM_ERR
| TX_PA_CFG_IGNORE_SNAP_OUI
|
1184 TX_PA_CFG_IGNORE_LLC_CTRL
| TX_PA_CFG_IGNORE_L2_ERR
;
1185 writeq(val64
, &bar0
->tx_pa_cfg
);
1187 /* Rx DMA intialization. */
1189 for (i
= 0; i
< config
->rx_ring_num
; i
++) {
1191 vBIT(config
->rx_cfg
[i
].ring_priority
, (5 + (i
* 8)),
1194 writeq(val64
, &bar0
->rx_queue_priority
);
1197 * Allocating equal share of memory to all the
1201 if (nic
->device_type
& XFRAME_II_DEVICE
)
1206 for (i
= 0; i
< config
->rx_ring_num
; i
++) {
1209 mem_share
= (mem_size
/ config
->rx_ring_num
+
1210 mem_size
% config
->rx_ring_num
);
1211 val64
|= RX_QUEUE_CFG_Q0_SZ(mem_share
);
1214 mem_share
= (mem_size
/ config
->rx_ring_num
);
1215 val64
|= RX_QUEUE_CFG_Q1_SZ(mem_share
);
1218 mem_share
= (mem_size
/ config
->rx_ring_num
);
1219 val64
|= RX_QUEUE_CFG_Q2_SZ(mem_share
);
1222 mem_share
= (mem_size
/ config
->rx_ring_num
);
1223 val64
|= RX_QUEUE_CFG_Q3_SZ(mem_share
);
1226 mem_share
= (mem_size
/ config
->rx_ring_num
);
1227 val64
|= RX_QUEUE_CFG_Q4_SZ(mem_share
);
1230 mem_share
= (mem_size
/ config
->rx_ring_num
);
1231 val64
|= RX_QUEUE_CFG_Q5_SZ(mem_share
);
1234 mem_share
= (mem_size
/ config
->rx_ring_num
);
1235 val64
|= RX_QUEUE_CFG_Q6_SZ(mem_share
);
1238 mem_share
= (mem_size
/ config
->rx_ring_num
);
1239 val64
|= RX_QUEUE_CFG_Q7_SZ(mem_share
);
1243 writeq(val64
, &bar0
->rx_queue_cfg
);
1246 * Filling Tx round robin registers
1247 * as per the number of FIFOs
1249 switch (config
->tx_fifo_num
) {
1251 val64
= 0x0000000000000000ULL
;
1252 writeq(val64
, &bar0
->tx_w_round_robin_0
);
1253 writeq(val64
, &bar0
->tx_w_round_robin_1
);
1254 writeq(val64
, &bar0
->tx_w_round_robin_2
);
1255 writeq(val64
, &bar0
->tx_w_round_robin_3
);
1256 writeq(val64
, &bar0
->tx_w_round_robin_4
);
1259 val64
= 0x0000010000010000ULL
;
1260 writeq(val64
, &bar0
->tx_w_round_robin_0
);
1261 val64
= 0x0100000100000100ULL
;
1262 writeq(val64
, &bar0
->tx_w_round_robin_1
);
1263 val64
= 0x0001000001000001ULL
;
1264 writeq(val64
, &bar0
->tx_w_round_robin_2
);
1265 val64
= 0x0000010000010000ULL
;
1266 writeq(val64
, &bar0
->tx_w_round_robin_3
);
1267 val64
= 0x0100000000000000ULL
;
1268 writeq(val64
, &bar0
->tx_w_round_robin_4
);
1271 val64
= 0x0001000102000001ULL
;
1272 writeq(val64
, &bar0
->tx_w_round_robin_0
);
1273 val64
= 0x0001020000010001ULL
;
1274 writeq(val64
, &bar0
->tx_w_round_robin_1
);
1275 val64
= 0x0200000100010200ULL
;
1276 writeq(val64
, &bar0
->tx_w_round_robin_2
);
1277 val64
= 0x0001000102000001ULL
;
1278 writeq(val64
, &bar0
->tx_w_round_robin_3
);
1279 val64
= 0x0001020000000000ULL
;
1280 writeq(val64
, &bar0
->tx_w_round_robin_4
);
1283 val64
= 0x0001020300010200ULL
;
1284 writeq(val64
, &bar0
->tx_w_round_robin_0
);
1285 val64
= 0x0100000102030001ULL
;
1286 writeq(val64
, &bar0
->tx_w_round_robin_1
);
1287 val64
= 0x0200010000010203ULL
;
1288 writeq(val64
, &bar0
->tx_w_round_robin_2
);
1289 val64
= 0x0001020001000001ULL
;
1290 writeq(val64
, &bar0
->tx_w_round_robin_3
);
1291 val64
= 0x0203000100000000ULL
;
1292 writeq(val64
, &bar0
->tx_w_round_robin_4
);
1295 val64
= 0x0001000203000102ULL
;
1296 writeq(val64
, &bar0
->tx_w_round_robin_0
);
1297 val64
= 0x0001020001030004ULL
;
1298 writeq(val64
, &bar0
->tx_w_round_robin_1
);
1299 val64
= 0x0001000203000102ULL
;
1300 writeq(val64
, &bar0
->tx_w_round_robin_2
);
1301 val64
= 0x0001020001030004ULL
;
1302 writeq(val64
, &bar0
->tx_w_round_robin_3
);
1303 val64
= 0x0001000000000000ULL
;
1304 writeq(val64
, &bar0
->tx_w_round_robin_4
);
1307 val64
= 0x0001020304000102ULL
;
1308 writeq(val64
, &bar0
->tx_w_round_robin_0
);
1309 val64
= 0x0304050001020001ULL
;
1310 writeq(val64
, &bar0
->tx_w_round_robin_1
);
1311 val64
= 0x0203000100000102ULL
;
1312 writeq(val64
, &bar0
->tx_w_round_robin_2
);
1313 val64
= 0x0304000102030405ULL
;
1314 writeq(val64
, &bar0
->tx_w_round_robin_3
);
1315 val64
= 0x0001000200000000ULL
;
1316 writeq(val64
, &bar0
->tx_w_round_robin_4
);
1319 val64
= 0x0001020001020300ULL
;
1320 writeq(val64
, &bar0
->tx_w_round_robin_0
);
1321 val64
= 0x0102030400010203ULL
;
1322 writeq(val64
, &bar0
->tx_w_round_robin_1
);
1323 val64
= 0x0405060001020001ULL
;
1324 writeq(val64
, &bar0
->tx_w_round_robin_2
);
1325 val64
= 0x0304050000010200ULL
;
1326 writeq(val64
, &bar0
->tx_w_round_robin_3
);
1327 val64
= 0x0102030000000000ULL
;
1328 writeq(val64
, &bar0
->tx_w_round_robin_4
);
1331 val64
= 0x0001020300040105ULL
;
1332 writeq(val64
, &bar0
->tx_w_round_robin_0
);
1333 val64
= 0x0200030106000204ULL
;
1334 writeq(val64
, &bar0
->tx_w_round_robin_1
);
1335 val64
= 0x0103000502010007ULL
;
1336 writeq(val64
, &bar0
->tx_w_round_robin_2
);
1337 val64
= 0x0304010002060500ULL
;
1338 writeq(val64
, &bar0
->tx_w_round_robin_3
);
1339 val64
= 0x0103020400000000ULL
;
1340 writeq(val64
, &bar0
->tx_w_round_robin_4
);
1344 /* Enable all configured Tx FIFO partitions */
1345 val64
= readq(&bar0
->tx_fifo_partition_0
);
1346 val64
|= (TX_FIFO_PARTITION_EN
);
1347 writeq(val64
, &bar0
->tx_fifo_partition_0
);
1349 /* Filling the Rx round robin registers as per the
1350 * number of Rings and steering based on QoS.
1352 switch (config
->rx_ring_num
) {
1354 val64
= 0x8080808080808080ULL
;
1355 writeq(val64
, &bar0
->rts_qos_steering
);
1358 val64
= 0x0000010000010000ULL
;
1359 writeq(val64
, &bar0
->rx_w_round_robin_0
);
1360 val64
= 0x0100000100000100ULL
;
1361 writeq(val64
, &bar0
->rx_w_round_robin_1
);
1362 val64
= 0x0001000001000001ULL
;
1363 writeq(val64
, &bar0
->rx_w_round_robin_2
);
1364 val64
= 0x0000010000010000ULL
;
1365 writeq(val64
, &bar0
->rx_w_round_robin_3
);
1366 val64
= 0x0100000000000000ULL
;
1367 writeq(val64
, &bar0
->rx_w_round_robin_4
);
1369 val64
= 0x8080808040404040ULL
;
1370 writeq(val64
, &bar0
->rts_qos_steering
);
1373 val64
= 0x0001000102000001ULL
;
1374 writeq(val64
, &bar0
->rx_w_round_robin_0
);
1375 val64
= 0x0001020000010001ULL
;
1376 writeq(val64
, &bar0
->rx_w_round_robin_1
);
1377 val64
= 0x0200000100010200ULL
;
1378 writeq(val64
, &bar0
->rx_w_round_robin_2
);
1379 val64
= 0x0001000102000001ULL
;
1380 writeq(val64
, &bar0
->rx_w_round_robin_3
);
1381 val64
= 0x0001020000000000ULL
;
1382 writeq(val64
, &bar0
->rx_w_round_robin_4
);
1384 val64
= 0x8080804040402020ULL
;
1385 writeq(val64
, &bar0
->rts_qos_steering
);
1388 val64
= 0x0001020300010200ULL
;
1389 writeq(val64
, &bar0
->rx_w_round_robin_0
);
1390 val64
= 0x0100000102030001ULL
;
1391 writeq(val64
, &bar0
->rx_w_round_robin_1
);
1392 val64
= 0x0200010000010203ULL
;
1393 writeq(val64
, &bar0
->rx_w_round_robin_2
);
1394 val64
= 0x0001020001000001ULL
;
1395 writeq(val64
, &bar0
->rx_w_round_robin_3
);
1396 val64
= 0x0203000100000000ULL
;
1397 writeq(val64
, &bar0
->rx_w_round_robin_4
);
1399 val64
= 0x8080404020201010ULL
;
1400 writeq(val64
, &bar0
->rts_qos_steering
);
1403 val64
= 0x0001000203000102ULL
;
1404 writeq(val64
, &bar0
->rx_w_round_robin_0
);
1405 val64
= 0x0001020001030004ULL
;
1406 writeq(val64
, &bar0
->rx_w_round_robin_1
);
1407 val64
= 0x0001000203000102ULL
;
1408 writeq(val64
, &bar0
->rx_w_round_robin_2
);
1409 val64
= 0x0001020001030004ULL
;
1410 writeq(val64
, &bar0
->rx_w_round_robin_3
);
1411 val64
= 0x0001000000000000ULL
;
1412 writeq(val64
, &bar0
->rx_w_round_robin_4
);
1414 val64
= 0x8080404020201008ULL
;
1415 writeq(val64
, &bar0
->rts_qos_steering
);
1418 val64
= 0x0001020304000102ULL
;
1419 writeq(val64
, &bar0
->rx_w_round_robin_0
);
1420 val64
= 0x0304050001020001ULL
;
1421 writeq(val64
, &bar0
->rx_w_round_robin_1
);
1422 val64
= 0x0203000100000102ULL
;
1423 writeq(val64
, &bar0
->rx_w_round_robin_2
);
1424 val64
= 0x0304000102030405ULL
;
1425 writeq(val64
, &bar0
->rx_w_round_robin_3
);
1426 val64
= 0x0001000200000000ULL
;
1427 writeq(val64
, &bar0
->rx_w_round_robin_4
);
1429 val64
= 0x8080404020100804ULL
;
1430 writeq(val64
, &bar0
->rts_qos_steering
);
1433 val64
= 0x0001020001020300ULL
;
1434 writeq(val64
, &bar0
->rx_w_round_robin_0
);
1435 val64
= 0x0102030400010203ULL
;
1436 writeq(val64
, &bar0
->rx_w_round_robin_1
);
1437 val64
= 0x0405060001020001ULL
;
1438 writeq(val64
, &bar0
->rx_w_round_robin_2
);
1439 val64
= 0x0304050000010200ULL
;
1440 writeq(val64
, &bar0
->rx_w_round_robin_3
);
1441 val64
= 0x0102030000000000ULL
;
1442 writeq(val64
, &bar0
->rx_w_round_robin_4
);
1444 val64
= 0x8080402010080402ULL
;
1445 writeq(val64
, &bar0
->rts_qos_steering
);
1448 val64
= 0x0001020300040105ULL
;
1449 writeq(val64
, &bar0
->rx_w_round_robin_0
);
1450 val64
= 0x0200030106000204ULL
;
1451 writeq(val64
, &bar0
->rx_w_round_robin_1
);
1452 val64
= 0x0103000502010007ULL
;
1453 writeq(val64
, &bar0
->rx_w_round_robin_2
);
1454 val64
= 0x0304010002060500ULL
;
1455 writeq(val64
, &bar0
->rx_w_round_robin_3
);
1456 val64
= 0x0103020400000000ULL
;
1457 writeq(val64
, &bar0
->rx_w_round_robin_4
);
1459 val64
= 0x8040201008040201ULL
;
1460 writeq(val64
, &bar0
->rts_qos_steering
);
1466 for (i
= 0; i
< 8; i
++)
1467 writeq(val64
, &bar0
->rts_frm_len_n
[i
]);
1469 /* Set the default rts frame length for the rings configured */
1470 val64
= MAC_RTS_FRM_LEN_SET(dev
->mtu
+22);
1471 for (i
= 0 ; i
< config
->rx_ring_num
; i
++)
1472 writeq(val64
, &bar0
->rts_frm_len_n
[i
]);
1474 /* Set the frame length for the configured rings
1475 * desired by the user
1477 for (i
= 0; i
< config
->rx_ring_num
; i
++) {
1478 /* If rts_frm_len[i] == 0 then it is assumed that user not
1479 * specified frame length steering.
1480 * If the user provides the frame length then program
1481 * the rts_frm_len register for those values or else
1482 * leave it as it is.
1484 if (rts_frm_len
[i
] != 0) {
1485 writeq(MAC_RTS_FRM_LEN_SET(rts_frm_len
[i
]),
1486 &bar0
->rts_frm_len_n
[i
]);
1490 /* Disable differentiated services steering logic */
1491 for (i
= 0; i
< 64; i
++) {
1492 if (rts_ds_steer(nic
, i
, 0) == FAILURE
) {
1493 DBG_PRINT(ERR_DBG
, "%s: failed rts ds steering",
1495 DBG_PRINT(ERR_DBG
, "set on codepoint %d\n", i
);
1500 /* Program statistics memory */
1501 writeq(mac_control
->stats_mem_phy
, &bar0
->stat_addr
);
1503 if (nic
->device_type
== XFRAME_II_DEVICE
) {
1504 val64
= STAT_BC(0x320);
1505 writeq(val64
, &bar0
->stat_byte_cnt
);
1509 * Initializing the sampling rate for the device to calculate the
1510 * bandwidth utilization.
1512 val64
= MAC_TX_LINK_UTIL_VAL(tmac_util_period
) |
1513 MAC_RX_LINK_UTIL_VAL(rmac_util_period
);
1514 writeq(val64
, &bar0
->mac_link_util
);
1518 * Initializing the Transmit and Receive Traffic Interrupt
1522 * TTI Initialization. Default Tx timer gets us about
1523 * 250 interrupts per sec. Continuous interrupts are enabled
1526 if (nic
->device_type
== XFRAME_II_DEVICE
) {
1527 int count
= (nic
->config
.bus_speed
* 125)/2;
1528 val64
= TTI_DATA1_MEM_TX_TIMER_VAL(count
);
1531 val64
= TTI_DATA1_MEM_TX_TIMER_VAL(0x2078);
1533 val64
|= TTI_DATA1_MEM_TX_URNG_A(0xA) |
1534 TTI_DATA1_MEM_TX_URNG_B(0x10) |
1535 TTI_DATA1_MEM_TX_URNG_C(0x30) | TTI_DATA1_MEM_TX_TIMER_AC_EN
;
1536 if (use_continuous_tx_intrs
)
1537 val64
|= TTI_DATA1_MEM_TX_TIMER_CI_EN
;
1538 writeq(val64
, &bar0
->tti_data1_mem
);
1540 val64
= TTI_DATA2_MEM_TX_UFC_A(0x10) |
1541 TTI_DATA2_MEM_TX_UFC_B(0x20) |
1542 TTI_DATA2_MEM_TX_UFC_C(0x40) | TTI_DATA2_MEM_TX_UFC_D(0x80);
1543 writeq(val64
, &bar0
->tti_data2_mem
);
1545 val64
= TTI_CMD_MEM_WE
| TTI_CMD_MEM_STROBE_NEW_CMD
;
1546 writeq(val64
, &bar0
->tti_command_mem
);
1549 * Once the operation completes, the Strobe bit of the command
1550 * register will be reset. We poll for this particular condition
1551 * We wait for a maximum of 500ms for the operation to complete,
1552 * if it's not complete by then we return error.
1556 val64
= readq(&bar0
->tti_command_mem
);
1557 if (!(val64
& TTI_CMD_MEM_STROBE_NEW_CMD
)) {
1561 DBG_PRINT(ERR_DBG
, "%s: TTI init Failed\n",
1569 if (nic
->config
.bimodal
) {
1571 for (k
= 0; k
< config
->rx_ring_num
; k
++) {
1572 val64
= TTI_CMD_MEM_WE
| TTI_CMD_MEM_STROBE_NEW_CMD
;
1573 val64
|= TTI_CMD_MEM_OFFSET(0x38+k
);
1574 writeq(val64
, &bar0
->tti_command_mem
);
1577 * Once the operation completes, the Strobe bit of the command
1578 * register will be reset. We poll for this particular condition
1579 * We wait for a maximum of 500ms for the operation to complete,
1580 * if it's not complete by then we return error.
1584 val64
= readq(&bar0
->tti_command_mem
);
1585 if (!(val64
& TTI_CMD_MEM_STROBE_NEW_CMD
)) {
1590 "%s: TTI init Failed\n",
1600 /* RTI Initialization */
1601 if (nic
->device_type
== XFRAME_II_DEVICE
) {
1603 * Programmed to generate Apprx 500 Intrs per
1606 int count
= (nic
->config
.bus_speed
* 125)/4;
1607 val64
= RTI_DATA1_MEM_RX_TIMER_VAL(count
);
1609 val64
= RTI_DATA1_MEM_RX_TIMER_VAL(0xFFF);
1611 val64
|= RTI_DATA1_MEM_RX_URNG_A(0xA) |
1612 RTI_DATA1_MEM_RX_URNG_B(0x10) |
1613 RTI_DATA1_MEM_RX_URNG_C(0x30) | RTI_DATA1_MEM_RX_TIMER_AC_EN
;
1615 writeq(val64
, &bar0
->rti_data1_mem
);
1617 val64
= RTI_DATA2_MEM_RX_UFC_A(0x1) |
1618 RTI_DATA2_MEM_RX_UFC_B(0x2) ;
1619 if (nic
->config
.intr_type
== MSI_X
)
1620 val64
|= (RTI_DATA2_MEM_RX_UFC_C(0x20) | \
1621 RTI_DATA2_MEM_RX_UFC_D(0x40));
1623 val64
|= (RTI_DATA2_MEM_RX_UFC_C(0x40) | \
1624 RTI_DATA2_MEM_RX_UFC_D(0x80));
1625 writeq(val64
, &bar0
->rti_data2_mem
);
1627 for (i
= 0; i
< config
->rx_ring_num
; i
++) {
1628 val64
= RTI_CMD_MEM_WE
| RTI_CMD_MEM_STROBE_NEW_CMD
1629 | RTI_CMD_MEM_OFFSET(i
);
1630 writeq(val64
, &bar0
->rti_command_mem
);
1633 * Once the operation completes, the Strobe bit of the
1634 * command register will be reset. We poll for this
1635 * particular condition. We wait for a maximum of 500ms
1636 * for the operation to complete, if it's not complete
1637 * by then we return error.
1641 val64
= readq(&bar0
->rti_command_mem
);
1642 if (!(val64
& RTI_CMD_MEM_STROBE_NEW_CMD
)) {
1646 DBG_PRINT(ERR_DBG
, "%s: RTI init Failed\n",
1657 * Initializing proper values as Pause threshold into all
1658 * the 8 Queues on Rx side.
1660 writeq(0xffbbffbbffbbffbbULL
, &bar0
->mc_pause_thresh_q0q3
);
1661 writeq(0xffbbffbbffbbffbbULL
, &bar0
->mc_pause_thresh_q4q7
);
1663 /* Disable RMAC PAD STRIPPING */
1664 add
= &bar0
->mac_cfg
;
1665 val64
= readq(&bar0
->mac_cfg
);
1666 val64
&= ~(MAC_CFG_RMAC_STRIP_PAD
);
1667 writeq(RMAC_CFG_KEY(0x4C0D), &bar0
->rmac_cfg_key
);
1668 writel((u32
) (val64
), add
);
1669 writeq(RMAC_CFG_KEY(0x4C0D), &bar0
->rmac_cfg_key
);
1670 writel((u32
) (val64
>> 32), (add
+ 4));
1671 val64
= readq(&bar0
->mac_cfg
);
1673 /* Enable FCS stripping by adapter */
1674 add
= &bar0
->mac_cfg
;
1675 val64
= readq(&bar0
->mac_cfg
);
1676 val64
|= MAC_CFG_RMAC_STRIP_FCS
;
1677 if (nic
->device_type
== XFRAME_II_DEVICE
)
1678 writeq(val64
, &bar0
->mac_cfg
);
1680 writeq(RMAC_CFG_KEY(0x4C0D), &bar0
->rmac_cfg_key
);
1681 writel((u32
) (val64
), add
);
1682 writeq(RMAC_CFG_KEY(0x4C0D), &bar0
->rmac_cfg_key
);
1683 writel((u32
) (val64
>> 32), (add
+ 4));
1687 * Set the time value to be inserted in the pause frame
1688 * generated by xena.
1690 val64
= readq(&bar0
->rmac_pause_cfg
);
1691 val64
&= ~(RMAC_PAUSE_HG_PTIME(0xffff));
1692 val64
|= RMAC_PAUSE_HG_PTIME(nic
->mac_control
.rmac_pause_time
);
1693 writeq(val64
, &bar0
->rmac_pause_cfg
);
1696 * Set the Threshold Limit for Generating the pause frame
1697 * If the amount of data in any Queue exceeds ratio of
1698 * (mac_control.mc_pause_threshold_q0q3 or q4q7)/256
1699 * pause frame is generated
1702 for (i
= 0; i
< 4; i
++) {
1704 (((u64
) 0xFF00 | nic
->mac_control
.
1705 mc_pause_threshold_q0q3
)
1708 writeq(val64
, &bar0
->mc_pause_thresh_q0q3
);
1711 for (i
= 0; i
< 4; i
++) {
1713 (((u64
) 0xFF00 | nic
->mac_control
.
1714 mc_pause_threshold_q4q7
)
1717 writeq(val64
, &bar0
->mc_pause_thresh_q4q7
);
1720 * TxDMA will stop Read request if the number of read split has
1721 * exceeded the limit pointed by shared_splits
1723 val64
= readq(&bar0
->pic_control
);
1724 val64
|= PIC_CNTL_SHARED_SPLITS(shared_splits
);
1725 writeq(val64
, &bar0
->pic_control
);
1727 if (nic
->config
.bus_speed
== 266) {
1728 writeq(TXREQTO_VAL(0x7f) | TXREQTO_EN
, &bar0
->txreqtimeout
);
1729 writeq(0x0, &bar0
->read_retry_delay
);
1730 writeq(0x0, &bar0
->write_retry_delay
);
1734 * Programming the Herc to split every write transaction
1735 * that does not start on an ADB to reduce disconnects.
1737 if (nic
->device_type
== XFRAME_II_DEVICE
) {
1738 val64
= FAULT_BEHAVIOUR
| EXT_REQ_EN
|
1739 MISC_LINK_STABILITY_PRD(3);
1740 writeq(val64
, &bar0
->misc_control
);
1741 val64
= readq(&bar0
->pic_control2
);
1742 val64
&= ~(BIT(13)|BIT(14)|BIT(15));
1743 writeq(val64
, &bar0
->pic_control2
);
1745 if (strstr(nic
->product_name
, "CX4")) {
1746 val64
= TMAC_AVG_IPG(0x17);
1747 writeq(val64
, &bar0
->tmac_avg_ipg
);
1752 #define LINK_UP_DOWN_INTERRUPT 1
1753 #define MAC_RMAC_ERR_TIMER 2
1755 static int s2io_link_fault_indication(struct s2io_nic
*nic
)
1757 if (nic
->config
.intr_type
!= INTA
)
1758 return MAC_RMAC_ERR_TIMER
;
1759 if (nic
->device_type
== XFRAME_II_DEVICE
)
1760 return LINK_UP_DOWN_INTERRUPT
;
1762 return MAC_RMAC_ERR_TIMER
;
1766 * do_s2io_write_bits - update alarm bits in alarm register
1767 * @value: alarm bits
1768 * @flag: interrupt status
1769 * @addr: address value
1770 * Description: update alarm bits in alarm register
1774 static void do_s2io_write_bits(u64 value
, int flag
, void __iomem
*addr
)
1778 temp64
= readq(addr
);
1780 if(flag
== ENABLE_INTRS
)
1781 temp64
&= ~((u64
) value
);
1783 temp64
|= ((u64
) value
);
1784 writeq(temp64
, addr
);
1787 void en_dis_err_alarms(struct s2io_nic
*nic
, u16 mask
, int flag
)
1789 struct XENA_dev_config __iomem
*bar0
= nic
->bar0
;
1790 register u64 gen_int_mask
= 0;
1792 if (mask
& TX_DMA_INTR
) {
1794 gen_int_mask
|= TXDMA_INT_M
;
1796 do_s2io_write_bits(TXDMA_TDA_INT
| TXDMA_PFC_INT
|
1797 TXDMA_PCC_INT
| TXDMA_TTI_INT
|
1798 TXDMA_LSO_INT
| TXDMA_TPA_INT
|
1799 TXDMA_SM_INT
, flag
, &bar0
->txdma_int_mask
);
1801 do_s2io_write_bits(PFC_ECC_DB_ERR
| PFC_SM_ERR_ALARM
|
1802 PFC_MISC_0_ERR
| PFC_MISC_1_ERR
|
1803 PFC_PCIX_ERR
| PFC_ECC_SG_ERR
, flag
,
1804 &bar0
->pfc_err_mask
);
1806 do_s2io_write_bits(TDA_Fn_ECC_DB_ERR
| TDA_SM0_ERR_ALARM
|
1807 TDA_SM1_ERR_ALARM
| TDA_Fn_ECC_SG_ERR
|
1808 TDA_PCIX_ERR
, flag
, &bar0
->tda_err_mask
);
1810 do_s2io_write_bits(PCC_FB_ECC_DB_ERR
| PCC_TXB_ECC_DB_ERR
|
1811 PCC_SM_ERR_ALARM
| PCC_WR_ERR_ALARM
|
1812 PCC_N_SERR
| PCC_6_COF_OV_ERR
|
1813 PCC_7_COF_OV_ERR
| PCC_6_LSO_OV_ERR
|
1814 PCC_7_LSO_OV_ERR
| PCC_FB_ECC_SG_ERR
|
1815 PCC_TXB_ECC_SG_ERR
, flag
, &bar0
->pcc_err_mask
);
1817 do_s2io_write_bits(TTI_SM_ERR_ALARM
| TTI_ECC_SG_ERR
|
1818 TTI_ECC_DB_ERR
, flag
, &bar0
->tti_err_mask
);
1820 do_s2io_write_bits(LSO6_ABORT
| LSO7_ABORT
|
1821 LSO6_SM_ERR_ALARM
| LSO7_SM_ERR_ALARM
|
1822 LSO6_SEND_OFLOW
| LSO7_SEND_OFLOW
,
1823 flag
, &bar0
->lso_err_mask
);
1825 do_s2io_write_bits(TPA_SM_ERR_ALARM
| TPA_TX_FRM_DROP
,
1826 flag
, &bar0
->tpa_err_mask
);
1828 do_s2io_write_bits(SM_SM_ERR_ALARM
, flag
, &bar0
->sm_err_mask
);
1832 if (mask
& TX_MAC_INTR
) {
1833 gen_int_mask
|= TXMAC_INT_M
;
1834 do_s2io_write_bits(MAC_INT_STATUS_TMAC_INT
, flag
,
1835 &bar0
->mac_int_mask
);
1836 do_s2io_write_bits(TMAC_TX_BUF_OVRN
| TMAC_TX_SM_ERR
|
1837 TMAC_ECC_SG_ERR
| TMAC_ECC_DB_ERR
|
1838 TMAC_DESC_ECC_SG_ERR
| TMAC_DESC_ECC_DB_ERR
,
1839 flag
, &bar0
->mac_tmac_err_mask
);
1842 if (mask
& TX_XGXS_INTR
) {
1843 gen_int_mask
|= TXXGXS_INT_M
;
1844 do_s2io_write_bits(XGXS_INT_STATUS_TXGXS
, flag
,
1845 &bar0
->xgxs_int_mask
);
1846 do_s2io_write_bits(TXGXS_ESTORE_UFLOW
| TXGXS_TX_SM_ERR
|
1847 TXGXS_ECC_SG_ERR
| TXGXS_ECC_DB_ERR
,
1848 flag
, &bar0
->xgxs_txgxs_err_mask
);
1851 if (mask
& RX_DMA_INTR
) {
1852 gen_int_mask
|= RXDMA_INT_M
;
1853 do_s2io_write_bits(RXDMA_INT_RC_INT_M
| RXDMA_INT_RPA_INT_M
|
1854 RXDMA_INT_RDA_INT_M
| RXDMA_INT_RTI_INT_M
,
1855 flag
, &bar0
->rxdma_int_mask
);
1856 do_s2io_write_bits(RC_PRCn_ECC_DB_ERR
| RC_FTC_ECC_DB_ERR
|
1857 RC_PRCn_SM_ERR_ALARM
| RC_FTC_SM_ERR_ALARM
|
1858 RC_PRCn_ECC_SG_ERR
| RC_FTC_ECC_SG_ERR
|
1859 RC_RDA_FAIL_WR_Rn
, flag
, &bar0
->rc_err_mask
);
1860 do_s2io_write_bits(PRC_PCI_AB_RD_Rn
| PRC_PCI_AB_WR_Rn
|
1861 PRC_PCI_AB_F_WR_Rn
| PRC_PCI_DP_RD_Rn
|
1862 PRC_PCI_DP_WR_Rn
| PRC_PCI_DP_F_WR_Rn
, flag
,
1863 &bar0
->prc_pcix_err_mask
);
1864 do_s2io_write_bits(RPA_SM_ERR_ALARM
| RPA_CREDIT_ERR
|
1865 RPA_ECC_SG_ERR
| RPA_ECC_DB_ERR
, flag
,
1866 &bar0
->rpa_err_mask
);
1867 do_s2io_write_bits(RDA_RXDn_ECC_DB_ERR
| RDA_FRM_ECC_DB_N_AERR
|
1868 RDA_SM1_ERR_ALARM
| RDA_SM0_ERR_ALARM
|
1869 RDA_RXD_ECC_DB_SERR
| RDA_RXDn_ECC_SG_ERR
|
1870 RDA_FRM_ECC_SG_ERR
| RDA_MISC_ERR
|RDA_PCIX_ERR
,
1871 flag
, &bar0
->rda_err_mask
);
1872 do_s2io_write_bits(RTI_SM_ERR_ALARM
|
1873 RTI_ECC_SG_ERR
| RTI_ECC_DB_ERR
,
1874 flag
, &bar0
->rti_err_mask
);
1877 if (mask
& RX_MAC_INTR
) {
1878 gen_int_mask
|= RXMAC_INT_M
;
1879 do_s2io_write_bits(MAC_INT_STATUS_RMAC_INT
, flag
,
1880 &bar0
->mac_int_mask
);
1881 do_s2io_write_bits(RMAC_RX_BUFF_OVRN
| RMAC_RX_SM_ERR
|
1882 RMAC_UNUSED_INT
| RMAC_SINGLE_ECC_ERR
|
1883 RMAC_DOUBLE_ECC_ERR
|
1884 RMAC_LINK_STATE_CHANGE_INT
,
1885 flag
, &bar0
->mac_rmac_err_mask
);
1888 if (mask
& RX_XGXS_INTR
)
1890 gen_int_mask
|= RXXGXS_INT_M
;
1891 do_s2io_write_bits(XGXS_INT_STATUS_RXGXS
, flag
,
1892 &bar0
->xgxs_int_mask
);
1893 do_s2io_write_bits(RXGXS_ESTORE_OFLOW
| RXGXS_RX_SM_ERR
, flag
,
1894 &bar0
->xgxs_rxgxs_err_mask
);
1897 if (mask
& MC_INTR
) {
1898 gen_int_mask
|= MC_INT_M
;
1899 do_s2io_write_bits(MC_INT_MASK_MC_INT
, flag
, &bar0
->mc_int_mask
);
1900 do_s2io_write_bits(MC_ERR_REG_SM_ERR
| MC_ERR_REG_ECC_ALL_SNG
|
1901 MC_ERR_REG_ECC_ALL_DBL
| PLL_LOCK_N
, flag
,
1902 &bar0
->mc_err_mask
);
1904 nic
->general_int_mask
= gen_int_mask
;
1906 /* Remove this line when alarm interrupts are enabled */
1907 nic
->general_int_mask
= 0;
1910 * en_dis_able_nic_intrs - Enable or Disable the interrupts
1911 * @nic: device private variable,
1912 * @mask: A mask indicating which Intr block must be modified and,
1913 * @flag: A flag indicating whether to enable or disable the Intrs.
1914 * Description: This function will either disable or enable the interrupts
1915 * depending on the flag argument. The mask argument can be used to
1916 * enable/disable any Intr block.
1917 * Return Value: NONE.
1920 static void en_dis_able_nic_intrs(struct s2io_nic
*nic
, u16 mask
, int flag
)
1922 struct XENA_dev_config __iomem
*bar0
= nic
->bar0
;
1923 register u64 temp64
= 0, intr_mask
= 0;
1925 intr_mask
= nic
->general_int_mask
;
1927 /* Top level interrupt classification */
1928 /* PIC Interrupts */
1929 if (mask
& TX_PIC_INTR
) {
1930 /* Enable PIC Intrs in the general intr mask register */
1931 intr_mask
|= TXPIC_INT_M
;
1932 if (flag
== ENABLE_INTRS
) {
1934 * If Hercules adapter enable GPIO otherwise
1935 * disable all PCIX, Flash, MDIO, IIC and GPIO
1936 * interrupts for now.
1939 if (s2io_link_fault_indication(nic
) ==
1940 LINK_UP_DOWN_INTERRUPT
) {
1941 do_s2io_write_bits(PIC_INT_GPIO
, flag
,
1942 &bar0
->pic_int_mask
);
1943 do_s2io_write_bits(GPIO_INT_MASK_LINK_UP
, flag
,
1944 &bar0
->gpio_int_mask
);
1946 writeq(DISABLE_ALL_INTRS
, &bar0
->pic_int_mask
);
1947 } else if (flag
== DISABLE_INTRS
) {
1949 * Disable PIC Intrs in the general
1950 * intr mask register
1952 writeq(DISABLE_ALL_INTRS
, &bar0
->pic_int_mask
);
1956 /* Tx traffic interrupts */
1957 if (mask
& TX_TRAFFIC_INTR
) {
1958 intr_mask
|= TXTRAFFIC_INT_M
;
1959 if (flag
== ENABLE_INTRS
) {
1961 * Enable all the Tx side interrupts
1962 * writing 0 Enables all 64 TX interrupt levels
1964 writeq(0x0, &bar0
->tx_traffic_mask
);
1965 } else if (flag
== DISABLE_INTRS
) {
1967 * Disable Tx Traffic Intrs in the general intr mask
1970 writeq(DISABLE_ALL_INTRS
, &bar0
->tx_traffic_mask
);
1974 /* Rx traffic interrupts */
1975 if (mask
& RX_TRAFFIC_INTR
) {
1976 intr_mask
|= RXTRAFFIC_INT_M
;
1977 if (flag
== ENABLE_INTRS
) {
1978 /* writing 0 Enables all 8 RX interrupt levels */
1979 writeq(0x0, &bar0
->rx_traffic_mask
);
1980 } else if (flag
== DISABLE_INTRS
) {
1982 * Disable Rx Traffic Intrs in the general intr mask
1985 writeq(DISABLE_ALL_INTRS
, &bar0
->rx_traffic_mask
);
1989 temp64
= readq(&bar0
->general_int_mask
);
1990 if (flag
== ENABLE_INTRS
)
1991 temp64
&= ~((u64
) intr_mask
);
1993 temp64
= DISABLE_ALL_INTRS
;
1994 writeq(temp64
, &bar0
->general_int_mask
);
1996 nic
->general_int_mask
= readq(&bar0
->general_int_mask
);
2000 * verify_pcc_quiescent- Checks for PCC quiescent state
2001 * Return: 1 If PCC is quiescence
2002 * 0 If PCC is not quiescence
2004 static int verify_pcc_quiescent(struct s2io_nic
*sp
, int flag
)
2007 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
2008 u64 val64
= readq(&bar0
->adapter_status
);
2010 herc
= (sp
->device_type
== XFRAME_II_DEVICE
);
2012 if (flag
== FALSE
) {
2013 if ((!herc
&& (sp
->pdev
->revision
>= 4)) || herc
) {
2014 if (!(val64
& ADAPTER_STATUS_RMAC_PCC_IDLE
))
2017 if (!(val64
& ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE
))
2021 if ((!herc
&& (sp
->pdev
->revision
>= 4)) || herc
) {
2022 if (((val64
& ADAPTER_STATUS_RMAC_PCC_IDLE
) ==
2023 ADAPTER_STATUS_RMAC_PCC_IDLE
))
2026 if (((val64
& ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE
) ==
2027 ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE
))
2035 * verify_xena_quiescence - Checks whether the H/W is ready
2036 * Description: Returns whether the H/W is ready to go or not. Depending
2037 * on whether adapter enable bit was written or not the comparison
2038 * differs and the calling function passes the input argument flag to
2040 * Return: 1 If xena is quiescence
2041 * 0 If Xena is not quiescence
2044 static int verify_xena_quiescence(struct s2io_nic
*sp
)
2047 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
2048 u64 val64
= readq(&bar0
->adapter_status
);
2049 mode
= s2io_verify_pci_mode(sp
);
2051 if (!(val64
& ADAPTER_STATUS_TDMA_READY
)) {
2052 DBG_PRINT(ERR_DBG
, "%s", "TDMA is not ready!");
2055 if (!(val64
& ADAPTER_STATUS_RDMA_READY
)) {
2056 DBG_PRINT(ERR_DBG
, "%s", "RDMA is not ready!");
2059 if (!(val64
& ADAPTER_STATUS_PFC_READY
)) {
2060 DBG_PRINT(ERR_DBG
, "%s", "PFC is not ready!");
2063 if (!(val64
& ADAPTER_STATUS_TMAC_BUF_EMPTY
)) {
2064 DBG_PRINT(ERR_DBG
, "%s", "TMAC BUF is not empty!");
2067 if (!(val64
& ADAPTER_STATUS_PIC_QUIESCENT
)) {
2068 DBG_PRINT(ERR_DBG
, "%s", "PIC is not QUIESCENT!");
2071 if (!(val64
& ADAPTER_STATUS_MC_DRAM_READY
)) {
2072 DBG_PRINT(ERR_DBG
, "%s", "MC_DRAM is not ready!");
2075 if (!(val64
& ADAPTER_STATUS_MC_QUEUES_READY
)) {
2076 DBG_PRINT(ERR_DBG
, "%s", "MC_QUEUES is not ready!");
2079 if (!(val64
& ADAPTER_STATUS_M_PLL_LOCK
)) {
2080 DBG_PRINT(ERR_DBG
, "%s", "M_PLL is not locked!");
2085 * In PCI 33 mode, the P_PLL is not used, and therefore,
2086 * the the P_PLL_LOCK bit in the adapter_status register will
2089 if (!(val64
& ADAPTER_STATUS_P_PLL_LOCK
) &&
2090 sp
->device_type
== XFRAME_II_DEVICE
&& mode
!=
2092 DBG_PRINT(ERR_DBG
, "%s", "P_PLL is not locked!");
2095 if (!((val64
& ADAPTER_STATUS_RC_PRC_QUIESCENT
) ==
2096 ADAPTER_STATUS_RC_PRC_QUIESCENT
)) {
2097 DBG_PRINT(ERR_DBG
, "%s", "RC_PRC is not QUIESCENT!");
2104 * fix_mac_address - Fix for Mac addr problem on Alpha platforms
2105 * @sp: Pointer to device specifc structure
2107 * New procedure to clear mac address reading problems on Alpha platforms
2111 static void fix_mac_address(struct s2io_nic
* sp
)
2113 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
2117 while (fix_mac
[i
] != END_SIGN
) {
2118 writeq(fix_mac
[i
++], &bar0
->gpio_control
);
2120 val64
= readq(&bar0
->gpio_control
);
2125 * start_nic - Turns the device on
2126 * @nic : device private variable.
2128 * This function actually turns the device on. Before this function is
2129 * called,all Registers are configured from their reset states
2130 * and shared memory is allocated but the NIC is still quiescent. On
2131 * calling this function, the device interrupts are cleared and the NIC is
2132 * literally switched on by writing into the adapter control register.
2134 * SUCCESS on success and -1 on failure.
2137 static int start_nic(struct s2io_nic
*nic
)
2139 struct XENA_dev_config __iomem
*bar0
= nic
->bar0
;
2140 struct net_device
*dev
= nic
->dev
;
2141 register u64 val64
= 0;
2143 struct mac_info
*mac_control
;
2144 struct config_param
*config
;
2146 mac_control
= &nic
->mac_control
;
2147 config
= &nic
->config
;
2149 /* PRC Initialization and configuration */
2150 for (i
= 0; i
< config
->rx_ring_num
; i
++) {
2151 writeq((u64
) mac_control
->rings
[i
].rx_blocks
[0].block_dma_addr
,
2152 &bar0
->prc_rxd0_n
[i
]);
2154 val64
= readq(&bar0
->prc_ctrl_n
[i
]);
2155 if (nic
->config
.bimodal
)
2156 val64
|= PRC_CTRL_BIMODAL_INTERRUPT
;
2157 if (nic
->rxd_mode
== RXD_MODE_1
)
2158 val64
|= PRC_CTRL_RC_ENABLED
;
2160 val64
|= PRC_CTRL_RC_ENABLED
| PRC_CTRL_RING_MODE_3
;
2161 if (nic
->device_type
== XFRAME_II_DEVICE
)
2162 val64
|= PRC_CTRL_GROUP_READS
;
2163 val64
&= ~PRC_CTRL_RXD_BACKOFF_INTERVAL(0xFFFFFF);
2164 val64
|= PRC_CTRL_RXD_BACKOFF_INTERVAL(0x1000);
2165 writeq(val64
, &bar0
->prc_ctrl_n
[i
]);
2168 if (nic
->rxd_mode
== RXD_MODE_3B
) {
2169 /* Enabling 2 buffer mode by writing into Rx_pa_cfg reg. */
2170 val64
= readq(&bar0
->rx_pa_cfg
);
2171 val64
|= RX_PA_CFG_IGNORE_L2_ERR
;
2172 writeq(val64
, &bar0
->rx_pa_cfg
);
2175 if (vlan_tag_strip
== 0) {
2176 val64
= readq(&bar0
->rx_pa_cfg
);
2177 val64
&= ~RX_PA_CFG_STRIP_VLAN_TAG
;
2178 writeq(val64
, &bar0
->rx_pa_cfg
);
2179 vlan_strip_flag
= 0;
2183 * Enabling MC-RLDRAM. After enabling the device, we timeout
2184 * for around 100ms, which is approximately the time required
2185 * for the device to be ready for operation.
2187 val64
= readq(&bar0
->mc_rldram_mrs
);
2188 val64
|= MC_RLDRAM_QUEUE_SIZE_ENABLE
| MC_RLDRAM_MRS_ENABLE
;
2189 SPECIAL_REG_WRITE(val64
, &bar0
->mc_rldram_mrs
, UF
);
2190 val64
= readq(&bar0
->mc_rldram_mrs
);
2192 msleep(100); /* Delay by around 100 ms. */
2194 /* Enabling ECC Protection. */
2195 val64
= readq(&bar0
->adapter_control
);
2196 val64
&= ~ADAPTER_ECC_EN
;
2197 writeq(val64
, &bar0
->adapter_control
);
2200 * Verify if the device is ready to be enabled, if so enable
2203 val64
= readq(&bar0
->adapter_status
);
2204 if (!verify_xena_quiescence(nic
)) {
2205 DBG_PRINT(ERR_DBG
, "%s: device is not ready, ", dev
->name
);
2206 DBG_PRINT(ERR_DBG
, "Adapter status reads: 0x%llx\n",
2207 (unsigned long long) val64
);
2212 * With some switches, link might be already up at this point.
2213 * Because of this weird behavior, when we enable laser,
2214 * we may not get link. We need to handle this. We cannot
2215 * figure out which switch is misbehaving. So we are forced to
2216 * make a global change.
2219 /* Enabling Laser. */
2220 val64
= readq(&bar0
->adapter_control
);
2221 val64
|= ADAPTER_EOI_TX_ON
;
2222 writeq(val64
, &bar0
->adapter_control
);
2224 if (s2io_link_fault_indication(nic
) == MAC_RMAC_ERR_TIMER
) {
2226 * Dont see link state interrupts initally on some switches,
2227 * so directly scheduling the link state task here.
2229 schedule_work(&nic
->set_link_task
);
2231 /* SXE-002: Initialize link and activity LED */
2232 subid
= nic
->pdev
->subsystem_device
;
2233 if (((subid
& 0xFF) >= 0x07) &&
2234 (nic
->device_type
== XFRAME_I_DEVICE
)) {
2235 val64
= readq(&bar0
->gpio_control
);
2236 val64
|= 0x0000800000000000ULL
;
2237 writeq(val64
, &bar0
->gpio_control
);
2238 val64
= 0x0411040400000000ULL
;
2239 writeq(val64
, (void __iomem
*)bar0
+ 0x2700);
2245 * s2io_txdl_getskb - Get the skb from txdl, unmap and return skb
2247 static struct sk_buff
*s2io_txdl_getskb(struct fifo_info
*fifo_data
, struct \
2248 TxD
*txdlp
, int get_off
)
2250 struct s2io_nic
*nic
= fifo_data
->nic
;
2251 struct sk_buff
*skb
;
2256 if (txds
->Host_Control
== (u64
)(long)nic
->ufo_in_band_v
) {
2257 pci_unmap_single(nic
->pdev
, (dma_addr_t
)
2258 txds
->Buffer_Pointer
, sizeof(u64
),
2263 skb
= (struct sk_buff
*) ((unsigned long)
2264 txds
->Host_Control
);
2266 memset(txdlp
, 0, (sizeof(struct TxD
) * fifo_data
->max_txds
));
2269 pci_unmap_single(nic
->pdev
, (dma_addr_t
)
2270 txds
->Buffer_Pointer
,
2271 skb
->len
- skb
->data_len
,
2273 frg_cnt
= skb_shinfo(skb
)->nr_frags
;
2276 for (j
= 0; j
< frg_cnt
; j
++, txds
++) {
2277 skb_frag_t
*frag
= &skb_shinfo(skb
)->frags
[j
];
2278 if (!txds
->Buffer_Pointer
)
2280 pci_unmap_page(nic
->pdev
, (dma_addr_t
)
2281 txds
->Buffer_Pointer
,
2282 frag
->size
, PCI_DMA_TODEVICE
);
2285 memset(txdlp
,0, (sizeof(struct TxD
) * fifo_data
->max_txds
));
2290 * free_tx_buffers - Free all queued Tx buffers
2291 * @nic : device private variable.
2293 * Free all queued Tx buffers.
2294 * Return Value: void
2297 static void free_tx_buffers(struct s2io_nic
*nic
)
2299 struct net_device
*dev
= nic
->dev
;
2300 struct sk_buff
*skb
;
2303 struct mac_info
*mac_control
;
2304 struct config_param
*config
;
2307 mac_control
= &nic
->mac_control
;
2308 config
= &nic
->config
;
2310 for (i
= 0; i
< config
->tx_fifo_num
; i
++) {
2311 for (j
= 0; j
< config
->tx_cfg
[i
].fifo_len
- 1; j
++) {
2312 txdp
= (struct TxD
*) \
2313 mac_control
->fifos
[i
].list_info
[j
].list_virt_addr
;
2314 skb
= s2io_txdl_getskb(&mac_control
->fifos
[i
], txdp
, j
);
2316 nic
->mac_control
.stats_info
->sw_stat
.mem_freed
2323 "%s:forcibly freeing %d skbs on FIFO%d\n",
2325 mac_control
->fifos
[i
].tx_curr_get_info
.offset
= 0;
2326 mac_control
->fifos
[i
].tx_curr_put_info
.offset
= 0;
2331 * stop_nic - To stop the nic
2332 * @nic ; device private variable.
2334 * This function does exactly the opposite of what the start_nic()
2335 * function does. This function is called to stop the device.
2340 static void stop_nic(struct s2io_nic
*nic
)
2342 struct XENA_dev_config __iomem
*bar0
= nic
->bar0
;
2343 register u64 val64
= 0;
2345 struct mac_info
*mac_control
;
2346 struct config_param
*config
;
2348 mac_control
= &nic
->mac_control
;
2349 config
= &nic
->config
;
2351 /* Disable all interrupts */
2352 en_dis_err_alarms(nic
, ENA_ALL_INTRS
, DISABLE_INTRS
);
2353 interruptible
= TX_TRAFFIC_INTR
| RX_TRAFFIC_INTR
;
2354 interruptible
|= TX_PIC_INTR
;
2355 en_dis_able_nic_intrs(nic
, interruptible
, DISABLE_INTRS
);
2357 /* Clearing Adapter_En bit of ADAPTER_CONTROL Register */
2358 val64
= readq(&bar0
->adapter_control
);
2359 val64
&= ~(ADAPTER_CNTL_EN
);
2360 writeq(val64
, &bar0
->adapter_control
);
2364 * fill_rx_buffers - Allocates the Rx side skbs
2365 * @nic: device private variable
2366 * @ring_no: ring number
2368 * The function allocates Rx side skbs and puts the physical
2369 * address of these buffers into the RxD buffer pointers, so that the NIC
2370 * can DMA the received frame into these locations.
2371 * The NIC supports 3 receive modes, viz
2373 * 2. three buffer and
2374 * 3. Five buffer modes.
2375 * Each mode defines how many fragments the received frame will be split
2376 * up into by the NIC. The frame is split into L3 header, L4 Header,
2377 * L4 payload in three buffer mode and in 5 buffer mode, L4 payload itself
2378 * is split into 3 fragments. As of now only single buffer mode is
2381 * SUCCESS on success or an appropriate -ve value on failure.
2384 static int fill_rx_buffers(struct s2io_nic
*nic
, int ring_no
)
2386 struct net_device
*dev
= nic
->dev
;
2387 struct sk_buff
*skb
;
2389 int off
, off1
, size
, block_no
, block_no1
;
2392 struct mac_info
*mac_control
;
2393 struct config_param
*config
;
2396 unsigned long flags
;
2397 struct RxD_t
*first_rxdp
= NULL
;
2398 u64 Buffer0_ptr
= 0, Buffer1_ptr
= 0;
2401 struct swStat
*stats
= &nic
->mac_control
.stats_info
->sw_stat
;
2403 mac_control
= &nic
->mac_control
;
2404 config
= &nic
->config
;
2405 alloc_cnt
= mac_control
->rings
[ring_no
].pkt_cnt
-
2406 atomic_read(&nic
->rx_bufs_left
[ring_no
]);
2408 block_no1
= mac_control
->rings
[ring_no
].rx_curr_get_info
.block_index
;
2409 off1
= mac_control
->rings
[ring_no
].rx_curr_get_info
.offset
;
2410 while (alloc_tab
< alloc_cnt
) {
2411 block_no
= mac_control
->rings
[ring_no
].rx_curr_put_info
.
2413 off
= mac_control
->rings
[ring_no
].rx_curr_put_info
.offset
;
2415 rxdp
= mac_control
->rings
[ring_no
].
2416 rx_blocks
[block_no
].rxds
[off
].virt_addr
;
2418 if ((block_no
== block_no1
) && (off
== off1
) &&
2419 (rxdp
->Host_Control
)) {
2420 DBG_PRINT(INTR_DBG
, "%s: Get and Put",
2422 DBG_PRINT(INTR_DBG
, " info equated\n");
2425 if (off
&& (off
== rxd_count
[nic
->rxd_mode
])) {
2426 mac_control
->rings
[ring_no
].rx_curr_put_info
.
2428 if (mac_control
->rings
[ring_no
].rx_curr_put_info
.
2429 block_index
== mac_control
->rings
[ring_no
].
2431 mac_control
->rings
[ring_no
].rx_curr_put_info
.
2433 block_no
= mac_control
->rings
[ring_no
].
2434 rx_curr_put_info
.block_index
;
2435 if (off
== rxd_count
[nic
->rxd_mode
])
2437 mac_control
->rings
[ring_no
].rx_curr_put_info
.
2439 rxdp
= mac_control
->rings
[ring_no
].
2440 rx_blocks
[block_no
].block_virt_addr
;
2441 DBG_PRINT(INTR_DBG
, "%s: Next block at: %p\n",
2445 spin_lock_irqsave(&nic
->put_lock
, flags
);
2446 mac_control
->rings
[ring_no
].put_pos
=
2447 (block_no
* (rxd_count
[nic
->rxd_mode
] + 1)) + off
;
2448 spin_unlock_irqrestore(&nic
->put_lock
, flags
);
2450 mac_control
->rings
[ring_no
].put_pos
=
2451 (block_no
* (rxd_count
[nic
->rxd_mode
] + 1)) + off
;
2453 if ((rxdp
->Control_1
& RXD_OWN_XENA
) &&
2454 ((nic
->rxd_mode
== RXD_MODE_3B
) &&
2455 (rxdp
->Control_2
& BIT(0)))) {
2456 mac_control
->rings
[ring_no
].rx_curr_put_info
.
2460 /* calculate size of skb based on ring mode */
2461 size
= dev
->mtu
+ HEADER_ETHERNET_II_802_3_SIZE
+
2462 HEADER_802_2_SIZE
+ HEADER_SNAP_SIZE
;
2463 if (nic
->rxd_mode
== RXD_MODE_1
)
2464 size
+= NET_IP_ALIGN
;
2466 size
= dev
->mtu
+ ALIGN_SIZE
+ BUF0_LEN
+ 4;
2469 skb
= dev_alloc_skb(size
);
2471 DBG_PRINT(INFO_DBG
, "%s: Out of ", dev
->name
);
2472 DBG_PRINT(INFO_DBG
, "memory to allocate SKBs\n");
2475 first_rxdp
->Control_1
|= RXD_OWN_XENA
;
2477 nic
->mac_control
.stats_info
->sw_stat
. \
2478 mem_alloc_fail_cnt
++;
2481 nic
->mac_control
.stats_info
->sw_stat
.mem_allocated
2483 if (nic
->rxd_mode
== RXD_MODE_1
) {
2484 /* 1 buffer mode - normal operation mode */
2485 rxdp1
= (struct RxD1
*)rxdp
;
2486 memset(rxdp
, 0, sizeof(struct RxD1
));
2487 skb_reserve(skb
, NET_IP_ALIGN
);
2488 rxdp1
->Buffer0_ptr
= pci_map_single
2489 (nic
->pdev
, skb
->data
, size
- NET_IP_ALIGN
,
2490 PCI_DMA_FROMDEVICE
);
2491 if( (rxdp1
->Buffer0_ptr
== 0) ||
2492 (rxdp1
->Buffer0_ptr
==
2494 goto pci_map_failed
;
2497 SET_BUFFER0_SIZE_1(size
- NET_IP_ALIGN
);
2499 } else if (nic
->rxd_mode
== RXD_MODE_3B
) {
2502 * 2 buffer mode provides 128
2503 * byte aligned receive buffers.
2506 rxdp3
= (struct RxD3
*)rxdp
;
2507 /* save buffer pointers to avoid frequent dma mapping */
2508 Buffer0_ptr
= rxdp3
->Buffer0_ptr
;
2509 Buffer1_ptr
= rxdp3
->Buffer1_ptr
;
2510 memset(rxdp
, 0, sizeof(struct RxD3
));
2511 /* restore the buffer pointers for dma sync*/
2512 rxdp3
->Buffer0_ptr
= Buffer0_ptr
;
2513 rxdp3
->Buffer1_ptr
= Buffer1_ptr
;
2515 ba
= &mac_control
->rings
[ring_no
].ba
[block_no
][off
];
2516 skb_reserve(skb
, BUF0_LEN
);
2517 tmp
= (u64
)(unsigned long) skb
->data
;
2520 skb
->data
= (void *) (unsigned long)tmp
;
2521 skb_reset_tail_pointer(skb
);
2523 if (!(rxdp3
->Buffer0_ptr
))
2524 rxdp3
->Buffer0_ptr
=
2525 pci_map_single(nic
->pdev
, ba
->ba_0
, BUF0_LEN
,
2526 PCI_DMA_FROMDEVICE
);
2528 pci_dma_sync_single_for_device(nic
->pdev
,
2529 (dma_addr_t
) rxdp3
->Buffer0_ptr
,
2530 BUF0_LEN
, PCI_DMA_FROMDEVICE
);
2531 if( (rxdp3
->Buffer0_ptr
== 0) ||
2532 (rxdp3
->Buffer0_ptr
== DMA_ERROR_CODE
))
2533 goto pci_map_failed
;
2535 rxdp
->Control_2
= SET_BUFFER0_SIZE_3(BUF0_LEN
);
2536 if (nic
->rxd_mode
== RXD_MODE_3B
) {
2537 /* Two buffer mode */
2540 * Buffer2 will have L3/L4 header plus
2543 rxdp3
->Buffer2_ptr
= pci_map_single
2544 (nic
->pdev
, skb
->data
, dev
->mtu
+ 4,
2545 PCI_DMA_FROMDEVICE
);
2547 if( (rxdp3
->Buffer2_ptr
== 0) ||
2548 (rxdp3
->Buffer2_ptr
== DMA_ERROR_CODE
))
2549 goto pci_map_failed
;
2551 rxdp3
->Buffer1_ptr
=
2552 pci_map_single(nic
->pdev
,
2554 PCI_DMA_FROMDEVICE
);
2555 if( (rxdp3
->Buffer1_ptr
== 0) ||
2556 (rxdp3
->Buffer1_ptr
== DMA_ERROR_CODE
)) {
2559 (dma_addr_t
)rxdp3
->Buffer2_ptr
,
2561 PCI_DMA_FROMDEVICE
);
2562 goto pci_map_failed
;
2564 rxdp
->Control_2
|= SET_BUFFER1_SIZE_3(1);
2565 rxdp
->Control_2
|= SET_BUFFER2_SIZE_3
2568 rxdp
->Control_2
|= BIT(0);
2570 rxdp
->Host_Control
= (unsigned long) (skb
);
2571 if (alloc_tab
& ((1 << rxsync_frequency
) - 1))
2572 rxdp
->Control_1
|= RXD_OWN_XENA
;
2574 if (off
== (rxd_count
[nic
->rxd_mode
] + 1))
2576 mac_control
->rings
[ring_no
].rx_curr_put_info
.offset
= off
;
2578 rxdp
->Control_2
|= SET_RXD_MARKER
;
2579 if (!(alloc_tab
& ((1 << rxsync_frequency
) - 1))) {
2582 first_rxdp
->Control_1
|= RXD_OWN_XENA
;
2586 atomic_inc(&nic
->rx_bufs_left
[ring_no
]);
2591 /* Transfer ownership of first descriptor to adapter just before
2592 * exiting. Before that, use memory barrier so that ownership
2593 * and other fields are seen by adapter correctly.
2597 first_rxdp
->Control_1
|= RXD_OWN_XENA
;
2602 stats
->pci_map_fail_cnt
++;
2603 stats
->mem_freed
+= skb
->truesize
;
2604 dev_kfree_skb_irq(skb
);
2608 static void free_rxd_blk(struct s2io_nic
*sp
, int ring_no
, int blk
)
2610 struct net_device
*dev
= sp
->dev
;
2612 struct sk_buff
*skb
;
2614 struct mac_info
*mac_control
;
2619 mac_control
= &sp
->mac_control
;
2620 for (j
= 0 ; j
< rxd_count
[sp
->rxd_mode
]; j
++) {
2621 rxdp
= mac_control
->rings
[ring_no
].
2622 rx_blocks
[blk
].rxds
[j
].virt_addr
;
2623 skb
= (struct sk_buff
*)
2624 ((unsigned long) rxdp
->Host_Control
);
2628 if (sp
->rxd_mode
== RXD_MODE_1
) {
2629 rxdp1
= (struct RxD1
*)rxdp
;
2630 pci_unmap_single(sp
->pdev
, (dma_addr_t
)
2633 HEADER_ETHERNET_II_802_3_SIZE
2634 + HEADER_802_2_SIZE
+
2636 PCI_DMA_FROMDEVICE
);
2637 memset(rxdp
, 0, sizeof(struct RxD1
));
2638 } else if(sp
->rxd_mode
== RXD_MODE_3B
) {
2639 rxdp3
= (struct RxD3
*)rxdp
;
2640 ba
= &mac_control
->rings
[ring_no
].
2642 pci_unmap_single(sp
->pdev
, (dma_addr_t
)
2645 PCI_DMA_FROMDEVICE
);
2646 pci_unmap_single(sp
->pdev
, (dma_addr_t
)
2649 PCI_DMA_FROMDEVICE
);
2650 pci_unmap_single(sp
->pdev
, (dma_addr_t
)
2653 PCI_DMA_FROMDEVICE
);
2654 memset(rxdp
, 0, sizeof(struct RxD3
));
2656 sp
->mac_control
.stats_info
->sw_stat
.mem_freed
+= skb
->truesize
;
2658 atomic_dec(&sp
->rx_bufs_left
[ring_no
]);
2663 * free_rx_buffers - Frees all Rx buffers
2664 * @sp: device private variable.
2666 * This function will free all Rx buffers allocated by host.
2671 static void free_rx_buffers(struct s2io_nic
*sp
)
2673 struct net_device
*dev
= sp
->dev
;
2674 int i
, blk
= 0, buf_cnt
= 0;
2675 struct mac_info
*mac_control
;
2676 struct config_param
*config
;
2678 mac_control
= &sp
->mac_control
;
2679 config
= &sp
->config
;
2681 for (i
= 0; i
< config
->rx_ring_num
; i
++) {
2682 for (blk
= 0; blk
< rx_ring_sz
[i
]; blk
++)
2683 free_rxd_blk(sp
,i
,blk
);
2685 mac_control
->rings
[i
].rx_curr_put_info
.block_index
= 0;
2686 mac_control
->rings
[i
].rx_curr_get_info
.block_index
= 0;
2687 mac_control
->rings
[i
].rx_curr_put_info
.offset
= 0;
2688 mac_control
->rings
[i
].rx_curr_get_info
.offset
= 0;
2689 atomic_set(&sp
->rx_bufs_left
[i
], 0);
2690 DBG_PRINT(INIT_DBG
, "%s:Freed 0x%x Rx Buffers on ring%d\n",
2691 dev
->name
, buf_cnt
, i
);
2696 * s2io_poll - Rx interrupt handler for NAPI support
2697 * @napi : pointer to the napi structure.
2698 * @budget : The number of packets that were budgeted to be processed
2699 * during one pass through the 'Poll" function.
2701 * Comes into picture only if NAPI support has been incorporated. It does
2702 * the same thing that rx_intr_handler does, but not in a interrupt context
2703 * also It will process only a given number of packets.
2705 * 0 on success and 1 if there are No Rx packets to be processed.
2708 static int s2io_poll(struct napi_struct
*napi
, int budget
)
2710 struct s2io_nic
*nic
= container_of(napi
, struct s2io_nic
, napi
);
2711 struct net_device
*dev
= nic
->dev
;
2712 int pkt_cnt
= 0, org_pkts_to_process
;
2713 struct mac_info
*mac_control
;
2714 struct config_param
*config
;
2715 struct XENA_dev_config __iomem
*bar0
= nic
->bar0
;
2718 if (!is_s2io_card_up(nic
))
2721 mac_control
= &nic
->mac_control
;
2722 config
= &nic
->config
;
2724 nic
->pkts_to_process
= budget
;
2725 org_pkts_to_process
= nic
->pkts_to_process
;
2727 writeq(S2IO_MINUS_ONE
, &bar0
->rx_traffic_int
);
2728 readl(&bar0
->rx_traffic_int
);
2730 for (i
= 0; i
< config
->rx_ring_num
; i
++) {
2731 rx_intr_handler(&mac_control
->rings
[i
]);
2732 pkt_cnt
= org_pkts_to_process
- nic
->pkts_to_process
;
2733 if (!nic
->pkts_to_process
) {
2734 /* Quota for the current iteration has been met */
2739 netif_rx_complete(dev
, napi
);
2741 for (i
= 0; i
< config
->rx_ring_num
; i
++) {
2742 if (fill_rx_buffers(nic
, i
) == -ENOMEM
) {
2743 DBG_PRINT(INFO_DBG
, "%s:Out of memory", dev
->name
);
2744 DBG_PRINT(INFO_DBG
, " in Rx Poll!!\n");
2748 /* Re enable the Rx interrupts. */
2749 writeq(0x0, &bar0
->rx_traffic_mask
);
2750 readl(&bar0
->rx_traffic_mask
);
2754 for (i
= 0; i
< config
->rx_ring_num
; i
++) {
2755 if (fill_rx_buffers(nic
, i
) == -ENOMEM
) {
2756 DBG_PRINT(INFO_DBG
, "%s:Out of memory", dev
->name
);
2757 DBG_PRINT(INFO_DBG
, " in Rx Poll!!\n");
2764 #ifdef CONFIG_NET_POLL_CONTROLLER
2766 * s2io_netpoll - netpoll event handler entry point
2767 * @dev : pointer to the device structure.
2769 * This function will be called by upper layer to check for events on the
2770 * interface in situations where interrupts are disabled. It is used for
2771 * specific in-kernel networking tasks, such as remote consoles and kernel
2772 * debugging over the network (example netdump in RedHat).
2774 static void s2io_netpoll(struct net_device
*dev
)
2776 struct s2io_nic
*nic
= dev
->priv
;
2777 struct mac_info
*mac_control
;
2778 struct config_param
*config
;
2779 struct XENA_dev_config __iomem
*bar0
= nic
->bar0
;
2780 u64 val64
= 0xFFFFFFFFFFFFFFFFULL
;
2783 if (pci_channel_offline(nic
->pdev
))
2786 disable_irq(dev
->irq
);
2788 mac_control
= &nic
->mac_control
;
2789 config
= &nic
->config
;
2791 writeq(val64
, &bar0
->rx_traffic_int
);
2792 writeq(val64
, &bar0
->tx_traffic_int
);
2794 /* we need to free up the transmitted skbufs or else netpoll will
2795 * run out of skbs and will fail and eventually netpoll application such
2796 * as netdump will fail.
2798 for (i
= 0; i
< config
->tx_fifo_num
; i
++)
2799 tx_intr_handler(&mac_control
->fifos
[i
]);
2801 /* check for received packet and indicate up to network */
2802 for (i
= 0; i
< config
->rx_ring_num
; i
++)
2803 rx_intr_handler(&mac_control
->rings
[i
]);
2805 for (i
= 0; i
< config
->rx_ring_num
; i
++) {
2806 if (fill_rx_buffers(nic
, i
) == -ENOMEM
) {
2807 DBG_PRINT(INFO_DBG
, "%s:Out of memory", dev
->name
);
2808 DBG_PRINT(INFO_DBG
, " in Rx Netpoll!!\n");
2812 enable_irq(dev
->irq
);
2818 * rx_intr_handler - Rx interrupt handler
2819 * @nic: device private variable.
2821 * If the interrupt is because of a received frame or if the
2822 * receive ring contains fresh as yet un-processed frames,this function is
2823 * called. It picks out the RxD at which place the last Rx processing had
2824 * stopped and sends the skb to the OSM's Rx handler and then increments
2829 static void rx_intr_handler(struct ring_info
*ring_data
)
2831 struct s2io_nic
*nic
= ring_data
->nic
;
2832 struct net_device
*dev
= (struct net_device
*) nic
->dev
;
2833 int get_block
, put_block
, put_offset
;
2834 struct rx_curr_get_info get_info
, put_info
;
2836 struct sk_buff
*skb
;
2842 spin_lock(&nic
->rx_lock
);
2844 get_info
= ring_data
->rx_curr_get_info
;
2845 get_block
= get_info
.block_index
;
2846 memcpy(&put_info
, &ring_data
->rx_curr_put_info
, sizeof(put_info
));
2847 put_block
= put_info
.block_index
;
2848 rxdp
= ring_data
->rx_blocks
[get_block
].rxds
[get_info
.offset
].virt_addr
;
2850 spin_lock(&nic
->put_lock
);
2851 put_offset
= ring_data
->put_pos
;
2852 spin_unlock(&nic
->put_lock
);
2854 put_offset
= ring_data
->put_pos
;
2856 while (RXD_IS_UP2DT(rxdp
)) {
2858 * If your are next to put index then it's
2859 * FIFO full condition
2861 if ((get_block
== put_block
) &&
2862 (get_info
.offset
+ 1) == put_info
.offset
) {
2863 DBG_PRINT(INTR_DBG
, "%s: Ring Full\n",dev
->name
);
2866 skb
= (struct sk_buff
*) ((unsigned long)rxdp
->Host_Control
);
2868 DBG_PRINT(ERR_DBG
, "%s: The skb is ",
2870 DBG_PRINT(ERR_DBG
, "Null in Rx Intr\n");
2871 spin_unlock(&nic
->rx_lock
);
2874 if (nic
->rxd_mode
== RXD_MODE_1
) {
2875 rxdp1
= (struct RxD1
*)rxdp
;
2876 pci_unmap_single(nic
->pdev
, (dma_addr_t
)
2879 HEADER_ETHERNET_II_802_3_SIZE
+
2882 PCI_DMA_FROMDEVICE
);
2883 } else if (nic
->rxd_mode
== RXD_MODE_3B
) {
2884 rxdp3
= (struct RxD3
*)rxdp
;
2885 pci_dma_sync_single_for_cpu(nic
->pdev
, (dma_addr_t
)
2887 BUF0_LEN
, PCI_DMA_FROMDEVICE
);
2888 pci_unmap_single(nic
->pdev
, (dma_addr_t
)
2891 PCI_DMA_FROMDEVICE
);
2893 prefetch(skb
->data
);
2894 rx_osm_handler(ring_data
, rxdp
);
2896 ring_data
->rx_curr_get_info
.offset
= get_info
.offset
;
2897 rxdp
= ring_data
->rx_blocks
[get_block
].
2898 rxds
[get_info
.offset
].virt_addr
;
2899 if (get_info
.offset
== rxd_count
[nic
->rxd_mode
]) {
2900 get_info
.offset
= 0;
2901 ring_data
->rx_curr_get_info
.offset
= get_info
.offset
;
2903 if (get_block
== ring_data
->block_count
)
2905 ring_data
->rx_curr_get_info
.block_index
= get_block
;
2906 rxdp
= ring_data
->rx_blocks
[get_block
].block_virt_addr
;
2909 nic
->pkts_to_process
-= 1;
2910 if ((napi
) && (!nic
->pkts_to_process
))
2913 if ((indicate_max_pkts
) && (pkt_cnt
> indicate_max_pkts
))
2917 /* Clear all LRO sessions before exiting */
2918 for (i
=0; i
<MAX_LRO_SESSIONS
; i
++) {
2919 struct lro
*lro
= &nic
->lro0_n
[i
];
2921 update_L3L4_header(nic
, lro
);
2922 queue_rx_frame(lro
->parent
);
2923 clear_lro_session(lro
);
2928 spin_unlock(&nic
->rx_lock
);
2932 * tx_intr_handler - Transmit interrupt handler
2933 * @nic : device private variable
2935 * If an interrupt was raised to indicate DMA complete of the
2936 * Tx packet, this function is called. It identifies the last TxD
2937 * whose buffer was freed and frees all skbs whose data have already
2938 * DMA'ed into the NICs internal memory.
2943 static void tx_intr_handler(struct fifo_info
*fifo_data
)
2945 struct s2io_nic
*nic
= fifo_data
->nic
;
2946 struct net_device
*dev
= (struct net_device
*) nic
->dev
;
2947 struct tx_curr_get_info get_info
, put_info
;
2948 struct sk_buff
*skb
;
2952 get_info
= fifo_data
->tx_curr_get_info
;
2953 memcpy(&put_info
, &fifo_data
->tx_curr_put_info
, sizeof(put_info
));
2954 txdlp
= (struct TxD
*) fifo_data
->list_info
[get_info
.offset
].
2956 while ((!(txdlp
->Control_1
& TXD_LIST_OWN_XENA
)) &&
2957 (get_info
.offset
!= put_info
.offset
) &&
2958 (txdlp
->Host_Control
)) {
2959 /* Check for TxD errors */
2960 if (txdlp
->Control_1
& TXD_T_CODE
) {
2961 unsigned long long err
;
2962 err
= txdlp
->Control_1
& TXD_T_CODE
;
2964 nic
->mac_control
.stats_info
->sw_stat
.
2968 /* update t_code statistics */
2969 err_mask
= err
>> 48;
2972 nic
->mac_control
.stats_info
->sw_stat
.
2977 nic
->mac_control
.stats_info
->sw_stat
.
2978 tx_desc_abort_cnt
++;
2982 nic
->mac_control
.stats_info
->sw_stat
.
2983 tx_parity_err_cnt
++;
2987 nic
->mac_control
.stats_info
->sw_stat
.
2992 nic
->mac_control
.stats_info
->sw_stat
.
2993 tx_list_proc_err_cnt
++;
2998 skb
= s2io_txdl_getskb(fifo_data
, txdlp
, get_info
.offset
);
3000 DBG_PRINT(ERR_DBG
, "%s: Null skb ",
3002 DBG_PRINT(ERR_DBG
, "in Tx Free Intr\n");
3006 /* Updating the statistics block */
3007 nic
->stats
.tx_bytes
+= skb
->len
;
3008 nic
->mac_control
.stats_info
->sw_stat
.mem_freed
+= skb
->truesize
;
3009 dev_kfree_skb_irq(skb
);
3012 if (get_info
.offset
== get_info
.fifo_len
+ 1)
3013 get_info
.offset
= 0;
3014 txdlp
= (struct TxD
*) fifo_data
->list_info
3015 [get_info
.offset
].list_virt_addr
;
3016 fifo_data
->tx_curr_get_info
.offset
=
3020 spin_lock(&nic
->tx_lock
);
3021 if (netif_queue_stopped(dev
))
3022 netif_wake_queue(dev
);
3023 spin_unlock(&nic
->tx_lock
);
3027 * s2io_mdio_write - Function to write in to MDIO registers
3028 * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS)
3029 * @addr : address value
3030 * @value : data value
3031 * @dev : pointer to net_device structure
3033 * This function is used to write values to the MDIO registers
3036 static void s2io_mdio_write(u32 mmd_type
, u64 addr
, u16 value
, struct net_device
*dev
)
3039 struct s2io_nic
*sp
= dev
->priv
;
3040 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
3042 //address transaction
3043 val64
= val64
| MDIO_MMD_INDX_ADDR(addr
)
3044 | MDIO_MMD_DEV_ADDR(mmd_type
)
3045 | MDIO_MMS_PRT_ADDR(0x0);
3046 writeq(val64
, &bar0
->mdio_control
);
3047 val64
= val64
| MDIO_CTRL_START_TRANS(0xE);
3048 writeq(val64
, &bar0
->mdio_control
);
3053 val64
= val64
| MDIO_MMD_INDX_ADDR(addr
)
3054 | MDIO_MMD_DEV_ADDR(mmd_type
)
3055 | MDIO_MMS_PRT_ADDR(0x0)
3056 | MDIO_MDIO_DATA(value
)
3057 | MDIO_OP(MDIO_OP_WRITE_TRANS
);
3058 writeq(val64
, &bar0
->mdio_control
);
3059 val64
= val64
| MDIO_CTRL_START_TRANS(0xE);
3060 writeq(val64
, &bar0
->mdio_control
);
3064 val64
= val64
| MDIO_MMD_INDX_ADDR(addr
)
3065 | MDIO_MMD_DEV_ADDR(mmd_type
)
3066 | MDIO_MMS_PRT_ADDR(0x0)
3067 | MDIO_OP(MDIO_OP_READ_TRANS
);
3068 writeq(val64
, &bar0
->mdio_control
);
3069 val64
= val64
| MDIO_CTRL_START_TRANS(0xE);
3070 writeq(val64
, &bar0
->mdio_control
);
3076 * s2io_mdio_read - Function to write in to MDIO registers
3077 * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS)
3078 * @addr : address value
3079 * @dev : pointer to net_device structure
3081 * This function is used to read values to the MDIO registers
3084 static u64
s2io_mdio_read(u32 mmd_type
, u64 addr
, struct net_device
*dev
)
3088 struct s2io_nic
*sp
= dev
->priv
;
3089 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
3091 /* address transaction */
3092 val64
= val64
| MDIO_MMD_INDX_ADDR(addr
)
3093 | MDIO_MMD_DEV_ADDR(mmd_type
)
3094 | MDIO_MMS_PRT_ADDR(0x0);
3095 writeq(val64
, &bar0
->mdio_control
);
3096 val64
= val64
| MDIO_CTRL_START_TRANS(0xE);
3097 writeq(val64
, &bar0
->mdio_control
);
3100 /* Data transaction */
3102 val64
= val64
| MDIO_MMD_INDX_ADDR(addr
)
3103 | MDIO_MMD_DEV_ADDR(mmd_type
)
3104 | MDIO_MMS_PRT_ADDR(0x0)
3105 | MDIO_OP(MDIO_OP_READ_TRANS
);
3106 writeq(val64
, &bar0
->mdio_control
);
3107 val64
= val64
| MDIO_CTRL_START_TRANS(0xE);
3108 writeq(val64
, &bar0
->mdio_control
);
3111 /* Read the value from regs */
3112 rval64
= readq(&bar0
->mdio_control
);
3113 rval64
= rval64
& 0xFFFF0000;
3114 rval64
= rval64
>> 16;
3118 * s2io_chk_xpak_counter - Function to check the status of the xpak counters
3119 * @counter : couter value to be updated
3120 * @flag : flag to indicate the status
3121 * @type : counter type
3123 * This function is to check the status of the xpak counters value
3127 static void s2io_chk_xpak_counter(u64
*counter
, u64
* regs_stat
, u32 index
, u16 flag
, u16 type
)
3132 for(i
= 0; i
<index
; i
++)
3137 *counter
= *counter
+ 1;
3138 val64
= *regs_stat
& mask
;
3139 val64
= val64
>> (index
* 0x2);
3146 DBG_PRINT(ERR_DBG
, "Take Xframe NIC out of "
3147 "service. Excessive temperatures may "
3148 "result in premature transceiver "
3152 DBG_PRINT(ERR_DBG
, "Take Xframe NIC out of "
3153 "service Excessive bias currents may "
3154 "indicate imminent laser diode "
3158 DBG_PRINT(ERR_DBG
, "Take Xframe NIC out of "
3159 "service Excessive laser output "
3160 "power may saturate far-end "
3164 DBG_PRINT(ERR_DBG
, "Incorrect XPAK Alarm "
3169 val64
= val64
<< (index
* 0x2);
3170 *regs_stat
= (*regs_stat
& (~mask
)) | (val64
);
3173 *regs_stat
= *regs_stat
& (~mask
);
3178 * s2io_updt_xpak_counter - Function to update the xpak counters
3179 * @dev : pointer to net_device struct
3181 * This function is to upate the status of the xpak counters value
3184 static void s2io_updt_xpak_counter(struct net_device
*dev
)
3192 struct s2io_nic
*sp
= dev
->priv
;
3193 struct stat_block
*stat_info
= sp
->mac_control
.stats_info
;
3195 /* Check the communication with the MDIO slave */
3198 val64
= s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR
, addr
, dev
);
3199 if((val64
== 0xFFFF) || (val64
== 0x0000))
3201 DBG_PRINT(ERR_DBG
, "ERR: MDIO slave access failed - "
3202 "Returned %llx\n", (unsigned long long)val64
);
3206 /* Check for the expecte value of 2040 at PMA address 0x0000 */
3209 DBG_PRINT(ERR_DBG
, "Incorrect value at PMA address 0x0000 - ");
3210 DBG_PRINT(ERR_DBG
, "Returned: %llx- Expected: 0x2040\n",
3211 (unsigned long long)val64
);
3215 /* Loading the DOM register to MDIO register */
3217 s2io_mdio_write(MDIO_MMD_PMA_DEV_ADDR
, addr
, val16
, dev
);
3218 val64
= s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR
, addr
, dev
);
3220 /* Reading the Alarm flags */
3223 val64
= s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR
, addr
, dev
);
3225 flag
= CHECKBIT(val64
, 0x7);
3227 s2io_chk_xpak_counter(&stat_info
->xpak_stat
.alarm_transceiver_temp_high
,
3228 &stat_info
->xpak_stat
.xpak_regs_stat
,
3231 if(CHECKBIT(val64
, 0x6))
3232 stat_info
->xpak_stat
.alarm_transceiver_temp_low
++;
3234 flag
= CHECKBIT(val64
, 0x3);
3236 s2io_chk_xpak_counter(&stat_info
->xpak_stat
.alarm_laser_bias_current_high
,
3237 &stat_info
->xpak_stat
.xpak_regs_stat
,
3240 if(CHECKBIT(val64
, 0x2))
3241 stat_info
->xpak_stat
.alarm_laser_bias_current_low
++;
3243 flag
= CHECKBIT(val64
, 0x1);
3245 s2io_chk_xpak_counter(&stat_info
->xpak_stat
.alarm_laser_output_power_high
,
3246 &stat_info
->xpak_stat
.xpak_regs_stat
,
3249 if(CHECKBIT(val64
, 0x0))
3250 stat_info
->xpak_stat
.alarm_laser_output_power_low
++;
3252 /* Reading the Warning flags */
3255 val64
= s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR
, addr
, dev
);
3257 if(CHECKBIT(val64
, 0x7))
3258 stat_info
->xpak_stat
.warn_transceiver_temp_high
++;
3260 if(CHECKBIT(val64
, 0x6))
3261 stat_info
->xpak_stat
.warn_transceiver_temp_low
++;
3263 if(CHECKBIT(val64
, 0x3))
3264 stat_info
->xpak_stat
.warn_laser_bias_current_high
++;
3266 if(CHECKBIT(val64
, 0x2))
3267 stat_info
->xpak_stat
.warn_laser_bias_current_low
++;
3269 if(CHECKBIT(val64
, 0x1))
3270 stat_info
->xpak_stat
.warn_laser_output_power_high
++;
3272 if(CHECKBIT(val64
, 0x0))
3273 stat_info
->xpak_stat
.warn_laser_output_power_low
++;
3277 * wait_for_cmd_complete - waits for a command to complete.
3278 * @sp : private member of the device structure, which is a pointer to the
3279 * s2io_nic structure.
3280 * Description: Function that waits for a command to Write into RMAC
3281 * ADDR DATA registers to be completed and returns either success or
3282 * error depending on whether the command was complete or not.
3284 * SUCCESS on success and FAILURE on failure.
3287 static int wait_for_cmd_complete(void __iomem
*addr
, u64 busy_bit
,
3290 int ret
= FAILURE
, cnt
= 0, delay
= 1;
3293 if ((bit_state
!= S2IO_BIT_RESET
) && (bit_state
!= S2IO_BIT_SET
))
3297 val64
= readq(addr
);
3298 if (bit_state
== S2IO_BIT_RESET
) {
3299 if (!(val64
& busy_bit
)) {
3304 if (!(val64
& busy_bit
)) {
3321 * check_pci_device_id - Checks if the device id is supported
3323 * Description: Function to check if the pci device id is supported by driver.
3324 * Return value: Actual device id if supported else PCI_ANY_ID
3326 static u16
check_pci_device_id(u16 id
)
3329 case PCI_DEVICE_ID_HERC_WIN
:
3330 case PCI_DEVICE_ID_HERC_UNI
:
3331 return XFRAME_II_DEVICE
;
3332 case PCI_DEVICE_ID_S2IO_UNI
:
3333 case PCI_DEVICE_ID_S2IO_WIN
:
3334 return XFRAME_I_DEVICE
;
3341 * s2io_reset - Resets the card.
3342 * @sp : private member of the device structure.
3343 * Description: Function to Reset the card. This function then also
3344 * restores the previously saved PCI configuration space registers as
3345 * the card reset also resets the configuration space.
3350 static void s2io_reset(struct s2io_nic
* sp
)
3352 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
3357 unsigned long long up_cnt
, down_cnt
, up_time
, down_time
, reset_cnt
;
3358 unsigned long long mem_alloc_cnt
, mem_free_cnt
, watchdog_cnt
;
3360 DBG_PRINT(INIT_DBG
,"%s - Resetting XFrame card %s\n",
3361 __FUNCTION__
, sp
->dev
->name
);
3363 /* Back up the PCI-X CMD reg, dont want to lose MMRBC, OST settings */
3364 pci_read_config_word(sp
->pdev
, PCIX_COMMAND_REGISTER
, &(pci_cmd
));
3366 val64
= SW_RESET_ALL
;
3367 writeq(val64
, &bar0
->sw_reset
);
3368 if (strstr(sp
->product_name
, "CX4")) {
3372 for (i
= 0; i
< S2IO_MAX_PCI_CONFIG_SPACE_REINIT
; i
++) {
3374 /* Restore the PCI state saved during initialization. */
3375 pci_restore_state(sp
->pdev
);
3376 pci_read_config_word(sp
->pdev
, 0x2, &val16
);
3377 if (check_pci_device_id(val16
) != (u16
)PCI_ANY_ID
)
3382 if (check_pci_device_id(val16
) == (u16
)PCI_ANY_ID
) {
3383 DBG_PRINT(ERR_DBG
,"%s SW_Reset failed!\n", __FUNCTION__
);
3386 pci_write_config_word(sp
->pdev
, PCIX_COMMAND_REGISTER
, pci_cmd
);
3390 /* Set swapper to enable I/O register access */
3391 s2io_set_swapper(sp
);
3393 /* Restore the MSIX table entries from local variables */
3394 restore_xmsi_data(sp
);
3396 /* Clear certain PCI/PCI-X fields after reset */
3397 if (sp
->device_type
== XFRAME_II_DEVICE
) {
3398 /* Clear "detected parity error" bit */
3399 pci_write_config_word(sp
->pdev
, PCI_STATUS
, 0x8000);
3401 /* Clearing PCIX Ecc status register */
3402 pci_write_config_dword(sp
->pdev
, 0x68, 0x7C);
3404 /* Clearing PCI_STATUS error reflected here */
3405 writeq(BIT(62), &bar0
->txpic_int_reg
);
3408 /* Reset device statistics maintained by OS */
3409 memset(&sp
->stats
, 0, sizeof (struct net_device_stats
));
3411 up_cnt
= sp
->mac_control
.stats_info
->sw_stat
.link_up_cnt
;
3412 down_cnt
= sp
->mac_control
.stats_info
->sw_stat
.link_down_cnt
;
3413 up_time
= sp
->mac_control
.stats_info
->sw_stat
.link_up_time
;
3414 down_time
= sp
->mac_control
.stats_info
->sw_stat
.link_down_time
;
3415 reset_cnt
= sp
->mac_control
.stats_info
->sw_stat
.soft_reset_cnt
;
3416 mem_alloc_cnt
= sp
->mac_control
.stats_info
->sw_stat
.mem_allocated
;
3417 mem_free_cnt
= sp
->mac_control
.stats_info
->sw_stat
.mem_freed
;
3418 watchdog_cnt
= sp
->mac_control
.stats_info
->sw_stat
.watchdog_timer_cnt
;
3419 /* save link up/down time/cnt, reset/memory/watchdog cnt */
3420 memset(sp
->mac_control
.stats_info
, 0, sizeof(struct stat_block
));
3421 /* restore link up/down time/cnt, reset/memory/watchdog cnt */
3422 sp
->mac_control
.stats_info
->sw_stat
.link_up_cnt
= up_cnt
;
3423 sp
->mac_control
.stats_info
->sw_stat
.link_down_cnt
= down_cnt
;
3424 sp
->mac_control
.stats_info
->sw_stat
.link_up_time
= up_time
;
3425 sp
->mac_control
.stats_info
->sw_stat
.link_down_time
= down_time
;
3426 sp
->mac_control
.stats_info
->sw_stat
.soft_reset_cnt
= reset_cnt
;
3427 sp
->mac_control
.stats_info
->sw_stat
.mem_allocated
= mem_alloc_cnt
;
3428 sp
->mac_control
.stats_info
->sw_stat
.mem_freed
= mem_free_cnt
;
3429 sp
->mac_control
.stats_info
->sw_stat
.watchdog_timer_cnt
= watchdog_cnt
;
3431 /* SXE-002: Configure link and activity LED to turn it off */
3432 subid
= sp
->pdev
->subsystem_device
;
3433 if (((subid
& 0xFF) >= 0x07) &&
3434 (sp
->device_type
== XFRAME_I_DEVICE
)) {
3435 val64
= readq(&bar0
->gpio_control
);
3436 val64
|= 0x0000800000000000ULL
;
3437 writeq(val64
, &bar0
->gpio_control
);
3438 val64
= 0x0411040400000000ULL
;
3439 writeq(val64
, (void __iomem
*)bar0
+ 0x2700);
3443 * Clear spurious ECC interrupts that would have occured on
3444 * XFRAME II cards after reset.
3446 if (sp
->device_type
== XFRAME_II_DEVICE
) {
3447 val64
= readq(&bar0
->pcc_err_reg
);
3448 writeq(val64
, &bar0
->pcc_err_reg
);
3451 /* restore the previously assigned mac address */
3452 s2io_set_mac_addr(sp
->dev
, (u8
*)&sp
->def_mac_addr
[0].mac_addr
);
3454 sp
->device_enabled_once
= FALSE
;
3458 * s2io_set_swapper - to set the swapper controle on the card
3459 * @sp : private member of the device structure,
3460 * pointer to the s2io_nic structure.
3461 * Description: Function to set the swapper control on the card
3462 * correctly depending on the 'endianness' of the system.
3464 * SUCCESS on success and FAILURE on failure.
3467 static int s2io_set_swapper(struct s2io_nic
* sp
)
3469 struct net_device
*dev
= sp
->dev
;
3470 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
3471 u64 val64
, valt
, valr
;
3474 * Set proper endian settings and verify the same by reading
3475 * the PIF Feed-back register.
3478 val64
= readq(&bar0
->pif_rd_swapper_fb
);
3479 if (val64
!= 0x0123456789ABCDEFULL
) {
3481 u64 value
[] = { 0xC30000C3C30000C3ULL
, /* FE=1, SE=1 */
3482 0x8100008181000081ULL
, /* FE=1, SE=0 */
3483 0x4200004242000042ULL
, /* FE=0, SE=1 */
3484 0}; /* FE=0, SE=0 */
3487 writeq(value
[i
], &bar0
->swapper_ctrl
);
3488 val64
= readq(&bar0
->pif_rd_swapper_fb
);
3489 if (val64
== 0x0123456789ABCDEFULL
)
3494 DBG_PRINT(ERR_DBG
, "%s: Endian settings are wrong, ",
3496 DBG_PRINT(ERR_DBG
, "feedback read %llx\n",
3497 (unsigned long long) val64
);
3502 valr
= readq(&bar0
->swapper_ctrl
);
3505 valt
= 0x0123456789ABCDEFULL
;
3506 writeq(valt
, &bar0
->xmsi_address
);
3507 val64
= readq(&bar0
->xmsi_address
);
3511 u64 value
[] = { 0x00C3C30000C3C300ULL
, /* FE=1, SE=1 */
3512 0x0081810000818100ULL
, /* FE=1, SE=0 */
3513 0x0042420000424200ULL
, /* FE=0, SE=1 */
3514 0}; /* FE=0, SE=0 */
3517 writeq((value
[i
] | valr
), &bar0
->swapper_ctrl
);
3518 writeq(valt
, &bar0
->xmsi_address
);
3519 val64
= readq(&bar0
->xmsi_address
);
3525 unsigned long long x
= val64
;
3526 DBG_PRINT(ERR_DBG
, "Write failed, Xmsi_addr ");
3527 DBG_PRINT(ERR_DBG
, "reads:0x%llx\n", x
);
3531 val64
= readq(&bar0
->swapper_ctrl
);
3532 val64
&= 0xFFFF000000000000ULL
;
3536 * The device by default set to a big endian format, so a
3537 * big endian driver need not set anything.
3539 val64
|= (SWAPPER_CTRL_TXP_FE
|
3540 SWAPPER_CTRL_TXP_SE
|
3541 SWAPPER_CTRL_TXD_R_FE
|
3542 SWAPPER_CTRL_TXD_W_FE
|
3543 SWAPPER_CTRL_TXF_R_FE
|
3544 SWAPPER_CTRL_RXD_R_FE
|
3545 SWAPPER_CTRL_RXD_W_FE
|
3546 SWAPPER_CTRL_RXF_W_FE
|
3547 SWAPPER_CTRL_XMSI_FE
|
3548 SWAPPER_CTRL_STATS_FE
| SWAPPER_CTRL_STATS_SE
);
3549 if (sp
->config
.intr_type
== INTA
)
3550 val64
|= SWAPPER_CTRL_XMSI_SE
;
3551 writeq(val64
, &bar0
->swapper_ctrl
);
3554 * Initially we enable all bits to make it accessible by the
3555 * driver, then we selectively enable only those bits that
3558 val64
|= (SWAPPER_CTRL_TXP_FE
|
3559 SWAPPER_CTRL_TXP_SE
|
3560 SWAPPER_CTRL_TXD_R_FE
|
3561 SWAPPER_CTRL_TXD_R_SE
|
3562 SWAPPER_CTRL_TXD_W_FE
|
3563 SWAPPER_CTRL_TXD_W_SE
|
3564 SWAPPER_CTRL_TXF_R_FE
|
3565 SWAPPER_CTRL_RXD_R_FE
|
3566 SWAPPER_CTRL_RXD_R_SE
|
3567 SWAPPER_CTRL_RXD_W_FE
|
3568 SWAPPER_CTRL_RXD_W_SE
|
3569 SWAPPER_CTRL_RXF_W_FE
|
3570 SWAPPER_CTRL_XMSI_FE
|
3571 SWAPPER_CTRL_STATS_FE
| SWAPPER_CTRL_STATS_SE
);
3572 if (sp
->config
.intr_type
== INTA
)
3573 val64
|= SWAPPER_CTRL_XMSI_SE
;
3574 writeq(val64
, &bar0
->swapper_ctrl
);
3576 val64
= readq(&bar0
->swapper_ctrl
);
3579 * Verifying if endian settings are accurate by reading a
3580 * feedback register.
3582 val64
= readq(&bar0
->pif_rd_swapper_fb
);
3583 if (val64
!= 0x0123456789ABCDEFULL
) {
3584 /* Endian settings are incorrect, calls for another dekko. */
3585 DBG_PRINT(ERR_DBG
, "%s: Endian settings are wrong, ",
3587 DBG_PRINT(ERR_DBG
, "feedback read %llx\n",
3588 (unsigned long long) val64
);
3595 static int wait_for_msix_trans(struct s2io_nic
*nic
, int i
)
3597 struct XENA_dev_config __iomem
*bar0
= nic
->bar0
;
3599 int ret
= 0, cnt
= 0;
3602 val64
= readq(&bar0
->xmsi_access
);
3603 if (!(val64
& BIT(15)))
3609 DBG_PRINT(ERR_DBG
, "XMSI # %d Access failed\n", i
);
3616 static void restore_xmsi_data(struct s2io_nic
*nic
)
3618 struct XENA_dev_config __iomem
*bar0
= nic
->bar0
;
3622 for (i
=0; i
< MAX_REQUESTED_MSI_X
; i
++) {
3623 writeq(nic
->msix_info
[i
].addr
, &bar0
->xmsi_address
);
3624 writeq(nic
->msix_info
[i
].data
, &bar0
->xmsi_data
);
3625 val64
= (BIT(7) | BIT(15) | vBIT(i
, 26, 6));
3626 writeq(val64
, &bar0
->xmsi_access
);
3627 if (wait_for_msix_trans(nic
, i
)) {
3628 DBG_PRINT(ERR_DBG
, "failed in %s\n", __FUNCTION__
);
3634 static void store_xmsi_data(struct s2io_nic
*nic
)
3636 struct XENA_dev_config __iomem
*bar0
= nic
->bar0
;
3637 u64 val64
, addr
, data
;
3640 /* Store and display */
3641 for (i
=0; i
< MAX_REQUESTED_MSI_X
; i
++) {
3642 val64
= (BIT(15) | vBIT(i
, 26, 6));
3643 writeq(val64
, &bar0
->xmsi_access
);
3644 if (wait_for_msix_trans(nic
, i
)) {
3645 DBG_PRINT(ERR_DBG
, "failed in %s\n", __FUNCTION__
);
3648 addr
= readq(&bar0
->xmsi_address
);
3649 data
= readq(&bar0
->xmsi_data
);
3651 nic
->msix_info
[i
].addr
= addr
;
3652 nic
->msix_info
[i
].data
= data
;
3657 static int s2io_enable_msi_x(struct s2io_nic
*nic
)
3659 struct XENA_dev_config __iomem
*bar0
= nic
->bar0
;
3661 u16 msi_control
; /* Temp variable */
3662 int ret
, i
, j
, msix_indx
= 1;
3664 nic
->entries
= kmalloc(MAX_REQUESTED_MSI_X
* sizeof(struct msix_entry
),
3666 if (nic
->entries
== NULL
) {
3667 DBG_PRINT(INFO_DBG
, "%s: Memory allocation failed\n", \
3669 nic
->mac_control
.stats_info
->sw_stat
.mem_alloc_fail_cnt
++;
3672 nic
->mac_control
.stats_info
->sw_stat
.mem_allocated
3673 += (MAX_REQUESTED_MSI_X
* sizeof(struct msix_entry
));
3674 memset(nic
->entries
, 0,MAX_REQUESTED_MSI_X
* sizeof(struct msix_entry
));
3677 kmalloc(MAX_REQUESTED_MSI_X
* sizeof(struct s2io_msix_entry
),
3679 if (nic
->s2io_entries
== NULL
) {
3680 DBG_PRINT(INFO_DBG
, "%s: Memory allocation failed\n",
3682 nic
->mac_control
.stats_info
->sw_stat
.mem_alloc_fail_cnt
++;
3683 kfree(nic
->entries
);
3684 nic
->mac_control
.stats_info
->sw_stat
.mem_freed
3685 += (MAX_REQUESTED_MSI_X
* sizeof(struct msix_entry
));
3688 nic
->mac_control
.stats_info
->sw_stat
.mem_allocated
3689 += (MAX_REQUESTED_MSI_X
* sizeof(struct s2io_msix_entry
));
3690 memset(nic
->s2io_entries
, 0,
3691 MAX_REQUESTED_MSI_X
* sizeof(struct s2io_msix_entry
));
3693 for (i
=0; i
< MAX_REQUESTED_MSI_X
; i
++) {
3694 nic
->entries
[i
].entry
= i
;
3695 nic
->s2io_entries
[i
].entry
= i
;
3696 nic
->s2io_entries
[i
].arg
= NULL
;
3697 nic
->s2io_entries
[i
].in_use
= 0;
3700 tx_mat
= readq(&bar0
->tx_mat0_n
[0]);
3701 for (i
=0; i
<nic
->config
.tx_fifo_num
; i
++, msix_indx
++) {
3702 tx_mat
|= TX_MAT_SET(i
, msix_indx
);
3703 nic
->s2io_entries
[msix_indx
].arg
= &nic
->mac_control
.fifos
[i
];
3704 nic
->s2io_entries
[msix_indx
].type
= MSIX_FIFO_TYPE
;
3705 nic
->s2io_entries
[msix_indx
].in_use
= MSIX_FLG
;
3707 writeq(tx_mat
, &bar0
->tx_mat0_n
[0]);
3709 if (!nic
->config
.bimodal
) {
3710 rx_mat
= readq(&bar0
->rx_mat
);
3711 for (j
=0; j
<nic
->config
.rx_ring_num
; j
++, msix_indx
++) {
3712 rx_mat
|= RX_MAT_SET(j
, msix_indx
);
3713 nic
->s2io_entries
[msix_indx
].arg
3714 = &nic
->mac_control
.rings
[j
];
3715 nic
->s2io_entries
[msix_indx
].type
= MSIX_RING_TYPE
;
3716 nic
->s2io_entries
[msix_indx
].in_use
= MSIX_FLG
;
3718 writeq(rx_mat
, &bar0
->rx_mat
);
3720 tx_mat
= readq(&bar0
->tx_mat0_n
[7]);
3721 for (j
=0; j
<nic
->config
.rx_ring_num
; j
++, msix_indx
++) {
3722 tx_mat
|= TX_MAT_SET(i
, msix_indx
);
3723 nic
->s2io_entries
[msix_indx
].arg
3724 = &nic
->mac_control
.rings
[j
];
3725 nic
->s2io_entries
[msix_indx
].type
= MSIX_RING_TYPE
;
3726 nic
->s2io_entries
[msix_indx
].in_use
= MSIX_FLG
;
3728 writeq(tx_mat
, &bar0
->tx_mat0_n
[7]);
3731 nic
->avail_msix_vectors
= 0;
3732 ret
= pci_enable_msix(nic
->pdev
, nic
->entries
, MAX_REQUESTED_MSI_X
);
3733 /* We fail init if error or we get less vectors than min required */
3734 if (ret
>= (nic
->config
.tx_fifo_num
+ nic
->config
.rx_ring_num
+ 1)) {
3735 nic
->avail_msix_vectors
= ret
;
3736 ret
= pci_enable_msix(nic
->pdev
, nic
->entries
, ret
);
3739 DBG_PRINT(ERR_DBG
, "%s: Enabling MSIX failed\n", nic
->dev
->name
);
3740 kfree(nic
->entries
);
3741 nic
->mac_control
.stats_info
->sw_stat
.mem_freed
3742 += (MAX_REQUESTED_MSI_X
* sizeof(struct msix_entry
));
3743 kfree(nic
->s2io_entries
);
3744 nic
->mac_control
.stats_info
->sw_stat
.mem_freed
3745 += (MAX_REQUESTED_MSI_X
* sizeof(struct s2io_msix_entry
));
3746 nic
->entries
= NULL
;
3747 nic
->s2io_entries
= NULL
;
3748 nic
->avail_msix_vectors
= 0;
3751 if (!nic
->avail_msix_vectors
)
3752 nic
->avail_msix_vectors
= MAX_REQUESTED_MSI_X
;
3755 * To enable MSI-X, MSI also needs to be enabled, due to a bug
3756 * in the herc NIC. (Temp change, needs to be removed later)
3758 pci_read_config_word(nic
->pdev
, 0x42, &msi_control
);
3759 msi_control
|= 0x1; /* Enable MSI */
3760 pci_write_config_word(nic
->pdev
, 0x42, msi_control
);
3765 /* Handle software interrupt used during MSI(X) test */
3766 static irqreturn_t __devinit
s2io_test_intr(int irq
, void *dev_id
)
3768 struct s2io_nic
*sp
= dev_id
;
3770 sp
->msi_detected
= 1;
3771 wake_up(&sp
->msi_wait
);
3776 /* Test interrupt path by forcing a a software IRQ */
3777 static int __devinit
s2io_test_msi(struct s2io_nic
*sp
)
3779 struct pci_dev
*pdev
= sp
->pdev
;
3780 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
3784 err
= request_irq(sp
->entries
[1].vector
, s2io_test_intr
, 0,
3787 DBG_PRINT(ERR_DBG
, "%s: PCI %s: cannot assign irq %d\n",
3788 sp
->dev
->name
, pci_name(pdev
), pdev
->irq
);
3792 init_waitqueue_head (&sp
->msi_wait
);
3793 sp
->msi_detected
= 0;
3795 saved64
= val64
= readq(&bar0
->scheduled_int_ctrl
);
3796 val64
|= SCHED_INT_CTRL_ONE_SHOT
;
3797 val64
|= SCHED_INT_CTRL_TIMER_EN
;
3798 val64
|= SCHED_INT_CTRL_INT2MSI(1);
3799 writeq(val64
, &bar0
->scheduled_int_ctrl
);
3801 wait_event_timeout(sp
->msi_wait
, sp
->msi_detected
, HZ
/10);
3803 if (!sp
->msi_detected
) {
3804 /* MSI(X) test failed, go back to INTx mode */
3805 DBG_PRINT(ERR_DBG
, "%s: PCI %s: No interrupt was generated"
3806 "using MSI(X) during test\n", sp
->dev
->name
,
3812 free_irq(sp
->entries
[1].vector
, sp
);
3814 writeq(saved64
, &bar0
->scheduled_int_ctrl
);
3818 /* ********************************************************* *
3819 * Functions defined below concern the OS part of the driver *
3820 * ********************************************************* */
3823 * s2io_open - open entry point of the driver
3824 * @dev : pointer to the device structure.
3826 * This function is the open entry point of the driver. It mainly calls a
3827 * function to allocate Rx buffers and inserts them into the buffer
3828 * descriptors and then enables the Rx part of the NIC.
3830 * 0 on success and an appropriate (-)ve integer as defined in errno.h
3834 static int s2io_open(struct net_device
*dev
)
3836 struct s2io_nic
*sp
= dev
->priv
;
3840 * Make sure you have link off by default every time
3841 * Nic is initialized
3843 netif_carrier_off(dev
);
3844 sp
->last_link_state
= 0;
3846 napi_enable(&sp
->napi
);
3848 if (sp
->config
.intr_type
== MSI_X
) {
3849 int ret
= s2io_enable_msi_x(sp
);
3854 ret
= s2io_test_msi(sp
);
3856 /* rollback MSI-X, will re-enable during add_isr() */
3858 sp
->mac_control
.stats_info
->sw_stat
.mem_freed
+=
3859 (MAX_REQUESTED_MSI_X
*
3860 sizeof(struct msix_entry
));
3861 kfree(sp
->s2io_entries
);
3862 sp
->mac_control
.stats_info
->sw_stat
.mem_freed
+=
3863 (MAX_REQUESTED_MSI_X
*
3864 sizeof(struct s2io_msix_entry
));
3866 sp
->s2io_entries
= NULL
;
3868 pci_read_config_word(sp
->pdev
, 0x42, &msi_control
);
3869 msi_control
&= 0xFFFE; /* Disable MSI */
3870 pci_write_config_word(sp
->pdev
, 0x42, msi_control
);
3872 pci_disable_msix(sp
->pdev
);
3878 "%s: MSI-X requested but failed to enable\n",
3880 sp
->config
.intr_type
= INTA
;
3884 /* NAPI doesn't work well with MSI(X) */
3885 if (sp
->config
.intr_type
!= INTA
) {
3887 sp
->config
.napi
= 0;
3890 /* Initialize H/W and enable interrupts */
3891 err
= s2io_card_up(sp
);
3893 DBG_PRINT(ERR_DBG
, "%s: H/W initialization failed\n",
3895 goto hw_init_failed
;
3898 if (s2io_set_mac_addr(dev
, dev
->dev_addr
) == FAILURE
) {
3899 DBG_PRINT(ERR_DBG
, "Set Mac Address Failed\n");
3902 goto hw_init_failed
;
3905 netif_start_queue(dev
);
3909 napi_disable(&sp
->napi
);
3910 if (sp
->config
.intr_type
== MSI_X
) {
3913 sp
->mac_control
.stats_info
->sw_stat
.mem_freed
3914 += (MAX_REQUESTED_MSI_X
* sizeof(struct msix_entry
));
3916 if (sp
->s2io_entries
) {
3917 kfree(sp
->s2io_entries
);
3918 sp
->mac_control
.stats_info
->sw_stat
.mem_freed
3919 += (MAX_REQUESTED_MSI_X
* sizeof(struct s2io_msix_entry
));
3926 * s2io_close -close entry point of the driver
3927 * @dev : device pointer.
3929 * This is the stop entry point of the driver. It needs to undo exactly
3930 * whatever was done by the open entry point,thus it's usually referred to
3931 * as the close function.Among other things this function mainly stops the
3932 * Rx side of the NIC and frees all the Rx buffers in the Rx rings.
3934 * 0 on success and an appropriate (-)ve integer as defined in errno.h
3938 static int s2io_close(struct net_device
*dev
)
3940 struct s2io_nic
*sp
= dev
->priv
;
3942 netif_stop_queue(dev
);
3943 napi_disable(&sp
->napi
);
3944 /* Reset card, kill tasklet and free Tx and Rx buffers. */
3951 * s2io_xmit - Tx entry point of te driver
3952 * @skb : the socket buffer containing the Tx data.
3953 * @dev : device pointer.
3955 * This function is the Tx entry point of the driver. S2IO NIC supports
3956 * certain protocol assist features on Tx side, namely CSO, S/G, LSO.
3957 * NOTE: when device cant queue the pkt,just the trans_start variable will
3960 * 0 on success & 1 on failure.
3963 static int s2io_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
3965 struct s2io_nic
*sp
= dev
->priv
;
3966 u16 frg_cnt
, frg_len
, i
, queue
, queue_len
, put_off
, get_off
;
3969 struct TxFIFO_element __iomem
*tx_fifo
;
3970 unsigned long flags
;
3972 int vlan_priority
= 0;
3973 struct mac_info
*mac_control
;
3974 struct config_param
*config
;
3976 struct swStat
*stats
= &sp
->mac_control
.stats_info
->sw_stat
;
3978 mac_control
= &sp
->mac_control
;
3979 config
= &sp
->config
;
3981 DBG_PRINT(TX_DBG
, "%s: In Neterion Tx routine\n", dev
->name
);
3983 if (unlikely(skb
->len
<= 0)) {
3984 DBG_PRINT(TX_DBG
, "%s:Buffer has no data..\n", dev
->name
);
3985 dev_kfree_skb_any(skb
);
3989 spin_lock_irqsave(&sp
->tx_lock
, flags
);
3990 if (!is_s2io_card_up(sp
)) {
3991 DBG_PRINT(TX_DBG
, "%s: Card going down for reset\n",
3993 spin_unlock_irqrestore(&sp
->tx_lock
, flags
);
3999 /* Get Fifo number to Transmit based on vlan priority */
4000 if (sp
->vlgrp
&& vlan_tx_tag_present(skb
)) {
4001 vlan_tag
= vlan_tx_tag_get(skb
);
4002 vlan_priority
= vlan_tag
>> 13;
4003 queue
= config
->fifo_mapping
[vlan_priority
];
4006 put_off
= (u16
) mac_control
->fifos
[queue
].tx_curr_put_info
.offset
;
4007 get_off
= (u16
) mac_control
->fifos
[queue
].tx_curr_get_info
.offset
;
4008 txdp
= (struct TxD
*) mac_control
->fifos
[queue
].list_info
[put_off
].
4011 queue_len
= mac_control
->fifos
[queue
].tx_curr_put_info
.fifo_len
+ 1;
4012 /* Avoid "put" pointer going beyond "get" pointer */
4013 if (txdp
->Host_Control
||
4014 ((put_off
+1) == queue_len
? 0 : (put_off
+1)) == get_off
) {
4015 DBG_PRINT(TX_DBG
, "Error in xmit, No free TXDs.\n");
4016 netif_stop_queue(dev
);
4018 spin_unlock_irqrestore(&sp
->tx_lock
, flags
);
4022 offload_type
= s2io_offload_type(skb
);
4023 if (offload_type
& (SKB_GSO_TCPV4
| SKB_GSO_TCPV6
)) {
4024 txdp
->Control_1
|= TXD_TCP_LSO_EN
;
4025 txdp
->Control_1
|= TXD_TCP_LSO_MSS(s2io_tcp_mss(skb
));
4027 if (skb
->ip_summed
== CHECKSUM_PARTIAL
) {
4029 (TXD_TX_CKO_IPV4_EN
| TXD_TX_CKO_TCP_EN
|
4032 txdp
->Control_1
|= TXD_GATHER_CODE_FIRST
;
4033 txdp
->Control_1
|= TXD_LIST_OWN_XENA
;
4034 txdp
->Control_2
|= config
->tx_intr_type
;
4036 if (sp
->vlgrp
&& vlan_tx_tag_present(skb
)) {
4037 txdp
->Control_2
|= TXD_VLAN_ENABLE
;
4038 txdp
->Control_2
|= TXD_VLAN_TAG(vlan_tag
);
4041 frg_len
= skb
->len
- skb
->data_len
;
4042 if (offload_type
== SKB_GSO_UDP
) {
4045 ufo_size
= s2io_udp_mss(skb
);
4047 txdp
->Control_1
|= TXD_UFO_EN
;
4048 txdp
->Control_1
|= TXD_UFO_MSS(ufo_size
);
4049 txdp
->Control_1
|= TXD_BUFFER0_SIZE(8);
4051 sp
->ufo_in_band_v
[put_off
] =
4052 (u64
)skb_shinfo(skb
)->ip6_frag_id
;
4054 sp
->ufo_in_band_v
[put_off
] =
4055 (u64
)skb_shinfo(skb
)->ip6_frag_id
<< 32;
4057 txdp
->Host_Control
= (unsigned long)sp
->ufo_in_band_v
;
4058 txdp
->Buffer_Pointer
= pci_map_single(sp
->pdev
,
4060 sizeof(u64
), PCI_DMA_TODEVICE
);
4061 if((txdp
->Buffer_Pointer
== 0) ||
4062 (txdp
->Buffer_Pointer
== DMA_ERROR_CODE
))
4063 goto pci_map_failed
;
4067 txdp
->Buffer_Pointer
= pci_map_single
4068 (sp
->pdev
, skb
->data
, frg_len
, PCI_DMA_TODEVICE
);
4069 if((txdp
->Buffer_Pointer
== 0) ||
4070 (txdp
->Buffer_Pointer
== DMA_ERROR_CODE
))
4071 goto pci_map_failed
;
4073 txdp
->Host_Control
= (unsigned long) skb
;
4074 txdp
->Control_1
|= TXD_BUFFER0_SIZE(frg_len
);
4075 if (offload_type
== SKB_GSO_UDP
)
4076 txdp
->Control_1
|= TXD_UFO_EN
;
4078 frg_cnt
= skb_shinfo(skb
)->nr_frags
;
4079 /* For fragmented SKB. */
4080 for (i
= 0; i
< frg_cnt
; i
++) {
4081 skb_frag_t
*frag
= &skb_shinfo(skb
)->frags
[i
];
4082 /* A '0' length fragment will be ignored */
4086 txdp
->Buffer_Pointer
= (u64
) pci_map_page
4087 (sp
->pdev
, frag
->page
, frag
->page_offset
,
4088 frag
->size
, PCI_DMA_TODEVICE
);
4089 txdp
->Control_1
= TXD_BUFFER0_SIZE(frag
->size
);
4090 if (offload_type
== SKB_GSO_UDP
)
4091 txdp
->Control_1
|= TXD_UFO_EN
;
4093 txdp
->Control_1
|= TXD_GATHER_CODE_LAST
;
4095 if (offload_type
== SKB_GSO_UDP
)
4096 frg_cnt
++; /* as Txd0 was used for inband header */
4098 tx_fifo
= mac_control
->tx_FIFO_start
[queue
];
4099 val64
= mac_control
->fifos
[queue
].list_info
[put_off
].list_phy_addr
;
4100 writeq(val64
, &tx_fifo
->TxDL_Pointer
);
4102 val64
= (TX_FIFO_LAST_TXD_NUM(frg_cnt
) | TX_FIFO_FIRST_LIST
|
4105 val64
|= TX_FIFO_SPECIAL_FUNC
;
4107 writeq(val64
, &tx_fifo
->List_Control
);
4112 if (put_off
== mac_control
->fifos
[queue
].tx_curr_put_info
.fifo_len
+ 1)
4114 mac_control
->fifos
[queue
].tx_curr_put_info
.offset
= put_off
;
4116 /* Avoid "put" pointer going beyond "get" pointer */
4117 if (((put_off
+1) == queue_len
? 0 : (put_off
+1)) == get_off
) {
4118 sp
->mac_control
.stats_info
->sw_stat
.fifo_full_cnt
++;
4120 "No free TxDs for xmit, Put: 0x%x Get:0x%x\n",
4122 netif_stop_queue(dev
);
4124 mac_control
->stats_info
->sw_stat
.mem_allocated
+= skb
->truesize
;
4125 dev
->trans_start
= jiffies
;
4126 spin_unlock_irqrestore(&sp
->tx_lock
, flags
);
4130 stats
->pci_map_fail_cnt
++;
4131 netif_stop_queue(dev
);
4132 stats
->mem_freed
+= skb
->truesize
;
4134 spin_unlock_irqrestore(&sp
->tx_lock
, flags
);
4139 s2io_alarm_handle(unsigned long data
)
4141 struct s2io_nic
*sp
= (struct s2io_nic
*)data
;
4142 struct net_device
*dev
= sp
->dev
;
4144 s2io_handle_errors(dev
);
4145 mod_timer(&sp
->alarm_timer
, jiffies
+ HZ
/ 2);
4148 static int s2io_chk_rx_buffers(struct s2io_nic
*sp
, int rng_n
)
4150 int rxb_size
, level
;
4153 rxb_size
= atomic_read(&sp
->rx_bufs_left
[rng_n
]);
4154 level
= rx_buffer_level(sp
, rxb_size
, rng_n
);
4156 if ((level
== PANIC
) && (!TASKLET_IN_USE
)) {
4158 DBG_PRINT(INTR_DBG
, "%s: Rx BD hit ", __FUNCTION__
);
4159 DBG_PRINT(INTR_DBG
, "PANIC levels\n");
4160 if ((ret
= fill_rx_buffers(sp
, rng_n
)) == -ENOMEM
) {
4161 DBG_PRINT(INFO_DBG
, "Out of memory in %s",
4163 clear_bit(0, (&sp
->tasklet_status
));
4166 clear_bit(0, (&sp
->tasklet_status
));
4167 } else if (level
== LOW
)
4168 tasklet_schedule(&sp
->task
);
4170 } else if (fill_rx_buffers(sp
, rng_n
) == -ENOMEM
) {
4171 DBG_PRINT(INFO_DBG
, "%s:Out of memory", sp
->dev
->name
);
4172 DBG_PRINT(INFO_DBG
, " in Rx Intr!!\n");
4177 static irqreturn_t
s2io_msix_ring_handle(int irq
, void *dev_id
)
4179 struct ring_info
*ring
= (struct ring_info
*)dev_id
;
4180 struct s2io_nic
*sp
= ring
->nic
;
4182 if (!is_s2io_card_up(sp
))
4185 rx_intr_handler(ring
);
4186 s2io_chk_rx_buffers(sp
, ring
->ring_no
);
4191 static irqreturn_t
s2io_msix_fifo_handle(int irq
, void *dev_id
)
4193 struct fifo_info
*fifo
= (struct fifo_info
*)dev_id
;
4194 struct s2io_nic
*sp
= fifo
->nic
;
4196 if (!is_s2io_card_up(sp
))
4199 tx_intr_handler(fifo
);
4202 static void s2io_txpic_intr_handle(struct s2io_nic
*sp
)
4204 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
4207 val64
= readq(&bar0
->pic_int_status
);
4208 if (val64
& PIC_INT_GPIO
) {
4209 val64
= readq(&bar0
->gpio_int_reg
);
4210 if ((val64
& GPIO_INT_REG_LINK_DOWN
) &&
4211 (val64
& GPIO_INT_REG_LINK_UP
)) {
4213 * This is unstable state so clear both up/down
4214 * interrupt and adapter to re-evaluate the link state.
4216 val64
|= GPIO_INT_REG_LINK_DOWN
;
4217 val64
|= GPIO_INT_REG_LINK_UP
;
4218 writeq(val64
, &bar0
->gpio_int_reg
);
4219 val64
= readq(&bar0
->gpio_int_mask
);
4220 val64
&= ~(GPIO_INT_MASK_LINK_UP
|
4221 GPIO_INT_MASK_LINK_DOWN
);
4222 writeq(val64
, &bar0
->gpio_int_mask
);
4224 else if (val64
& GPIO_INT_REG_LINK_UP
) {
4225 val64
= readq(&bar0
->adapter_status
);
4226 /* Enable Adapter */
4227 val64
= readq(&bar0
->adapter_control
);
4228 val64
|= ADAPTER_CNTL_EN
;
4229 writeq(val64
, &bar0
->adapter_control
);
4230 val64
|= ADAPTER_LED_ON
;
4231 writeq(val64
, &bar0
->adapter_control
);
4232 if (!sp
->device_enabled_once
)
4233 sp
->device_enabled_once
= 1;
4235 s2io_link(sp
, LINK_UP
);
4237 * unmask link down interrupt and mask link-up
4240 val64
= readq(&bar0
->gpio_int_mask
);
4241 val64
&= ~GPIO_INT_MASK_LINK_DOWN
;
4242 val64
|= GPIO_INT_MASK_LINK_UP
;
4243 writeq(val64
, &bar0
->gpio_int_mask
);
4245 }else if (val64
& GPIO_INT_REG_LINK_DOWN
) {
4246 val64
= readq(&bar0
->adapter_status
);
4247 s2io_link(sp
, LINK_DOWN
);
4248 /* Link is down so unmaks link up interrupt */
4249 val64
= readq(&bar0
->gpio_int_mask
);
4250 val64
&= ~GPIO_INT_MASK_LINK_UP
;
4251 val64
|= GPIO_INT_MASK_LINK_DOWN
;
4252 writeq(val64
, &bar0
->gpio_int_mask
);
4255 val64
= readq(&bar0
->adapter_control
);
4256 val64
= val64
&(~ADAPTER_LED_ON
);
4257 writeq(val64
, &bar0
->adapter_control
);
4260 val64
= readq(&bar0
->gpio_int_mask
);
4264 * do_s2io_chk_alarm_bit - Check for alarm and incrment the counter
4265 * @value: alarm bits
4266 * @addr: address value
4267 * @cnt: counter variable
4268 * Description: Check for alarm and increment the counter
4270 * 1 - if alarm bit set
4271 * 0 - if alarm bit is not set
4273 int do_s2io_chk_alarm_bit(u64 value
, void __iomem
* addr
,
4274 unsigned long long *cnt
)
4277 val64
= readq(addr
);
4278 if ( val64
& value
) {
4279 writeq(val64
, addr
);
4288 * s2io_handle_errors - Xframe error indication handler
4289 * @nic: device private variable
4290 * Description: Handle alarms such as loss of link, single or
4291 * double ECC errors, critical and serious errors.
4295 static void s2io_handle_errors(void * dev_id
)
4297 struct net_device
*dev
= (struct net_device
*) dev_id
;
4298 struct s2io_nic
*sp
= dev
->priv
;
4299 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
4300 u64 temp64
= 0,val64
=0;
4303 struct swStat
*sw_stat
= &sp
->mac_control
.stats_info
->sw_stat
;
4304 struct xpakStat
*stats
= &sp
->mac_control
.stats_info
->xpak_stat
;
4306 if (!is_s2io_card_up(sp
))
4309 if (pci_channel_offline(sp
->pdev
))
4312 memset(&sw_stat
->ring_full_cnt
, 0,
4313 sizeof(sw_stat
->ring_full_cnt
));
4315 /* Handling the XPAK counters update */
4316 if(stats
->xpak_timer_count
< 72000) {
4317 /* waiting for an hour */
4318 stats
->xpak_timer_count
++;
4320 s2io_updt_xpak_counter(dev
);
4321 /* reset the count to zero */
4322 stats
->xpak_timer_count
= 0;
4325 /* Handling link status change error Intr */
4326 if (s2io_link_fault_indication(sp
) == MAC_RMAC_ERR_TIMER
) {
4327 val64
= readq(&bar0
->mac_rmac_err_reg
);
4328 writeq(val64
, &bar0
->mac_rmac_err_reg
);
4329 if (val64
& RMAC_LINK_STATE_CHANGE_INT
)
4330 schedule_work(&sp
->set_link_task
);
4333 /* In case of a serious error, the device will be Reset. */
4334 if (do_s2io_chk_alarm_bit(SERR_SOURCE_ANY
, &bar0
->serr_source
,
4335 &sw_stat
->serious_err_cnt
))
4338 /* Check for data parity error */
4339 if (do_s2io_chk_alarm_bit(GPIO_INT_REG_DP_ERR_INT
, &bar0
->gpio_int_reg
,
4340 &sw_stat
->parity_err_cnt
))
4343 /* Check for ring full counter */
4344 if (sp
->device_type
== XFRAME_II_DEVICE
) {
4345 val64
= readq(&bar0
->ring_bump_counter1
);
4346 for (i
=0; i
<4; i
++) {
4347 temp64
= ( val64
& vBIT(0xFFFF,(i
*16),16));
4348 temp64
>>= 64 - ((i
+1)*16);
4349 sw_stat
->ring_full_cnt
[i
] += temp64
;
4352 val64
= readq(&bar0
->ring_bump_counter2
);
4353 for (i
=0; i
<4; i
++) {
4354 temp64
= ( val64
& vBIT(0xFFFF,(i
*16),16));
4355 temp64
>>= 64 - ((i
+1)*16);
4356 sw_stat
->ring_full_cnt
[i
+4] += temp64
;
4360 val64
= readq(&bar0
->txdma_int_status
);
4361 /*check for pfc_err*/
4362 if (val64
& TXDMA_PFC_INT
) {
4363 if (do_s2io_chk_alarm_bit(PFC_ECC_DB_ERR
| PFC_SM_ERR_ALARM
|
4364 PFC_MISC_0_ERR
| PFC_MISC_1_ERR
|
4365 PFC_PCIX_ERR
, &bar0
->pfc_err_reg
,
4366 &sw_stat
->pfc_err_cnt
))
4368 do_s2io_chk_alarm_bit(PFC_ECC_SG_ERR
, &bar0
->pfc_err_reg
,
4369 &sw_stat
->pfc_err_cnt
);
4372 /*check for tda_err*/
4373 if (val64
& TXDMA_TDA_INT
) {
4374 if(do_s2io_chk_alarm_bit(TDA_Fn_ECC_DB_ERR
| TDA_SM0_ERR_ALARM
|
4375 TDA_SM1_ERR_ALARM
, &bar0
->tda_err_reg
,
4376 &sw_stat
->tda_err_cnt
))
4378 do_s2io_chk_alarm_bit(TDA_Fn_ECC_SG_ERR
| TDA_PCIX_ERR
,
4379 &bar0
->tda_err_reg
, &sw_stat
->tda_err_cnt
);
4381 /*check for pcc_err*/
4382 if (val64
& TXDMA_PCC_INT
) {
4383 if (do_s2io_chk_alarm_bit(PCC_SM_ERR_ALARM
| PCC_WR_ERR_ALARM
4384 | PCC_N_SERR
| PCC_6_COF_OV_ERR
4385 | PCC_7_COF_OV_ERR
| PCC_6_LSO_OV_ERR
4386 | PCC_7_LSO_OV_ERR
| PCC_FB_ECC_DB_ERR
4387 | PCC_TXB_ECC_DB_ERR
, &bar0
->pcc_err_reg
,
4388 &sw_stat
->pcc_err_cnt
))
4390 do_s2io_chk_alarm_bit(PCC_FB_ECC_SG_ERR
| PCC_TXB_ECC_SG_ERR
,
4391 &bar0
->pcc_err_reg
, &sw_stat
->pcc_err_cnt
);
4394 /*check for tti_err*/
4395 if (val64
& TXDMA_TTI_INT
) {
4396 if (do_s2io_chk_alarm_bit(TTI_SM_ERR_ALARM
, &bar0
->tti_err_reg
,
4397 &sw_stat
->tti_err_cnt
))
4399 do_s2io_chk_alarm_bit(TTI_ECC_SG_ERR
| TTI_ECC_DB_ERR
,
4400 &bar0
->tti_err_reg
, &sw_stat
->tti_err_cnt
);
4403 /*check for lso_err*/
4404 if (val64
& TXDMA_LSO_INT
) {
4405 if (do_s2io_chk_alarm_bit(LSO6_ABORT
| LSO7_ABORT
4406 | LSO6_SM_ERR_ALARM
| LSO7_SM_ERR_ALARM
,
4407 &bar0
->lso_err_reg
, &sw_stat
->lso_err_cnt
))
4409 do_s2io_chk_alarm_bit(LSO6_SEND_OFLOW
| LSO7_SEND_OFLOW
,
4410 &bar0
->lso_err_reg
, &sw_stat
->lso_err_cnt
);
4413 /*check for tpa_err*/
4414 if (val64
& TXDMA_TPA_INT
) {
4415 if (do_s2io_chk_alarm_bit(TPA_SM_ERR_ALARM
, &bar0
->tpa_err_reg
,
4416 &sw_stat
->tpa_err_cnt
))
4418 do_s2io_chk_alarm_bit(TPA_TX_FRM_DROP
, &bar0
->tpa_err_reg
,
4419 &sw_stat
->tpa_err_cnt
);
4422 /*check for sm_err*/
4423 if (val64
& TXDMA_SM_INT
) {
4424 if (do_s2io_chk_alarm_bit(SM_SM_ERR_ALARM
, &bar0
->sm_err_reg
,
4425 &sw_stat
->sm_err_cnt
))
4429 val64
= readq(&bar0
->mac_int_status
);
4430 if (val64
& MAC_INT_STATUS_TMAC_INT
) {
4431 if (do_s2io_chk_alarm_bit(TMAC_TX_BUF_OVRN
| TMAC_TX_SM_ERR
,
4432 &bar0
->mac_tmac_err_reg
,
4433 &sw_stat
->mac_tmac_err_cnt
))
4435 do_s2io_chk_alarm_bit(TMAC_ECC_SG_ERR
| TMAC_ECC_DB_ERR
4436 | TMAC_DESC_ECC_SG_ERR
| TMAC_DESC_ECC_DB_ERR
,
4437 &bar0
->mac_tmac_err_reg
,
4438 &sw_stat
->mac_tmac_err_cnt
);
4441 val64
= readq(&bar0
->xgxs_int_status
);
4442 if (val64
& XGXS_INT_STATUS_TXGXS
) {
4443 if (do_s2io_chk_alarm_bit(TXGXS_ESTORE_UFLOW
| TXGXS_TX_SM_ERR
,
4444 &bar0
->xgxs_txgxs_err_reg
,
4445 &sw_stat
->xgxs_txgxs_err_cnt
))
4447 do_s2io_chk_alarm_bit(TXGXS_ECC_SG_ERR
| TXGXS_ECC_DB_ERR
,
4448 &bar0
->xgxs_txgxs_err_reg
,
4449 &sw_stat
->xgxs_txgxs_err_cnt
);
4452 val64
= readq(&bar0
->rxdma_int_status
);
4453 if (val64
& RXDMA_INT_RC_INT_M
) {
4454 if (do_s2io_chk_alarm_bit(RC_PRCn_ECC_DB_ERR
| RC_FTC_ECC_DB_ERR
4455 | RC_PRCn_SM_ERR_ALARM
|RC_FTC_SM_ERR_ALARM
,
4456 &bar0
->rc_err_reg
, &sw_stat
->rc_err_cnt
))
4458 do_s2io_chk_alarm_bit(RC_PRCn_ECC_SG_ERR
| RC_FTC_ECC_SG_ERR
4459 | RC_RDA_FAIL_WR_Rn
, &bar0
->rc_err_reg
,
4460 &sw_stat
->rc_err_cnt
);
4461 if (do_s2io_chk_alarm_bit(PRC_PCI_AB_RD_Rn
| PRC_PCI_AB_WR_Rn
4462 | PRC_PCI_AB_F_WR_Rn
, &bar0
->prc_pcix_err_reg
,
4463 &sw_stat
->prc_pcix_err_cnt
))
4465 do_s2io_chk_alarm_bit(PRC_PCI_DP_RD_Rn
| PRC_PCI_DP_WR_Rn
4466 | PRC_PCI_DP_F_WR_Rn
, &bar0
->prc_pcix_err_reg
,
4467 &sw_stat
->prc_pcix_err_cnt
);
4470 if (val64
& RXDMA_INT_RPA_INT_M
) {
4471 if (do_s2io_chk_alarm_bit(RPA_SM_ERR_ALARM
| RPA_CREDIT_ERR
,
4472 &bar0
->rpa_err_reg
, &sw_stat
->rpa_err_cnt
))
4474 do_s2io_chk_alarm_bit(RPA_ECC_SG_ERR
| RPA_ECC_DB_ERR
,
4475 &bar0
->rpa_err_reg
, &sw_stat
->rpa_err_cnt
);
4478 if (val64
& RXDMA_INT_RDA_INT_M
) {
4479 if (do_s2io_chk_alarm_bit(RDA_RXDn_ECC_DB_ERR
4480 | RDA_FRM_ECC_DB_N_AERR
| RDA_SM1_ERR_ALARM
4481 | RDA_SM0_ERR_ALARM
| RDA_RXD_ECC_DB_SERR
,
4482 &bar0
->rda_err_reg
, &sw_stat
->rda_err_cnt
))
4484 do_s2io_chk_alarm_bit(RDA_RXDn_ECC_SG_ERR
| RDA_FRM_ECC_SG_ERR
4485 | RDA_MISC_ERR
| RDA_PCIX_ERR
,
4486 &bar0
->rda_err_reg
, &sw_stat
->rda_err_cnt
);
4489 if (val64
& RXDMA_INT_RTI_INT_M
) {
4490 if (do_s2io_chk_alarm_bit(RTI_SM_ERR_ALARM
, &bar0
->rti_err_reg
,
4491 &sw_stat
->rti_err_cnt
))
4493 do_s2io_chk_alarm_bit(RTI_ECC_SG_ERR
| RTI_ECC_DB_ERR
,
4494 &bar0
->rti_err_reg
, &sw_stat
->rti_err_cnt
);
4497 val64
= readq(&bar0
->mac_int_status
);
4498 if (val64
& MAC_INT_STATUS_RMAC_INT
) {
4499 if (do_s2io_chk_alarm_bit(RMAC_RX_BUFF_OVRN
| RMAC_RX_SM_ERR
,
4500 &bar0
->mac_rmac_err_reg
,
4501 &sw_stat
->mac_rmac_err_cnt
))
4503 do_s2io_chk_alarm_bit(RMAC_UNUSED_INT
|RMAC_SINGLE_ECC_ERR
|
4504 RMAC_DOUBLE_ECC_ERR
, &bar0
->mac_rmac_err_reg
,
4505 &sw_stat
->mac_rmac_err_cnt
);
4508 val64
= readq(&bar0
->xgxs_int_status
);
4509 if (val64
& XGXS_INT_STATUS_RXGXS
) {
4510 if (do_s2io_chk_alarm_bit(RXGXS_ESTORE_OFLOW
| RXGXS_RX_SM_ERR
,
4511 &bar0
->xgxs_rxgxs_err_reg
,
4512 &sw_stat
->xgxs_rxgxs_err_cnt
))
4516 val64
= readq(&bar0
->mc_int_status
);
4517 if(val64
& MC_INT_STATUS_MC_INT
) {
4518 if (do_s2io_chk_alarm_bit(MC_ERR_REG_SM_ERR
, &bar0
->mc_err_reg
,
4519 &sw_stat
->mc_err_cnt
))
4522 /* Handling Ecc errors */
4523 if (val64
& (MC_ERR_REG_ECC_ALL_SNG
| MC_ERR_REG_ECC_ALL_DBL
)) {
4524 writeq(val64
, &bar0
->mc_err_reg
);
4525 if (val64
& MC_ERR_REG_ECC_ALL_DBL
) {
4526 sw_stat
->double_ecc_errs
++;
4527 if (sp
->device_type
!= XFRAME_II_DEVICE
) {
4529 * Reset XframeI only if critical error
4532 (MC_ERR_REG_MIRI_ECC_DB_ERR_0
|
4533 MC_ERR_REG_MIRI_ECC_DB_ERR_1
))
4537 sw_stat
->single_ecc_errs
++;
4543 netif_stop_queue(dev
);
4544 schedule_work(&sp
->rst_timer_task
);
4545 sw_stat
->soft_reset_cnt
++;
4550 * s2io_isr - ISR handler of the device .
4551 * @irq: the irq of the device.
4552 * @dev_id: a void pointer to the dev structure of the NIC.
4553 * Description: This function is the ISR handler of the device. It
4554 * identifies the reason for the interrupt and calls the relevant
4555 * service routines. As a contongency measure, this ISR allocates the
4556 * recv buffers, if their numbers are below the panic value which is
4557 * presently set to 25% of the original number of rcv buffers allocated.
4559 * IRQ_HANDLED: will be returned if IRQ was handled by this routine
4560 * IRQ_NONE: will be returned if interrupt is not from our device
4562 static irqreturn_t
s2io_isr(int irq
, void *dev_id
)
4564 struct net_device
*dev
= (struct net_device
*) dev_id
;
4565 struct s2io_nic
*sp
= dev
->priv
;
4566 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
4569 struct mac_info
*mac_control
;
4570 struct config_param
*config
;
4572 /* Pretend we handled any irq's from a disconnected card */
4573 if (pci_channel_offline(sp
->pdev
))
4576 if (!is_s2io_card_up(sp
))
4579 mac_control
= &sp
->mac_control
;
4580 config
= &sp
->config
;
4583 * Identify the cause for interrupt and call the appropriate
4584 * interrupt handler. Causes for the interrupt could be;
4589 reason
= readq(&bar0
->general_int_status
);
4591 if (unlikely(reason
== S2IO_MINUS_ONE
) ) {
4592 /* Nothing much can be done. Get out */
4596 if (reason
& (GEN_INTR_RXTRAFFIC
|
4597 GEN_INTR_TXTRAFFIC
| GEN_INTR_TXPIC
))
4599 writeq(S2IO_MINUS_ONE
, &bar0
->general_int_mask
);
4602 if (reason
& GEN_INTR_RXTRAFFIC
) {
4603 if (likely(netif_rx_schedule_prep(dev
,
4605 __netif_rx_schedule(dev
, &sp
->napi
);
4606 writeq(S2IO_MINUS_ONE
,
4607 &bar0
->rx_traffic_mask
);
4609 writeq(S2IO_MINUS_ONE
,
4610 &bar0
->rx_traffic_int
);
4614 * rx_traffic_int reg is an R1 register, writing all 1's
4615 * will ensure that the actual interrupt causing bit
4616 * get's cleared and hence a read can be avoided.
4618 if (reason
& GEN_INTR_RXTRAFFIC
)
4619 writeq(S2IO_MINUS_ONE
, &bar0
->rx_traffic_int
);
4621 for (i
= 0; i
< config
->rx_ring_num
; i
++)
4622 rx_intr_handler(&mac_control
->rings
[i
]);
4626 * tx_traffic_int reg is an R1 register, writing all 1's
4627 * will ensure that the actual interrupt causing bit get's
4628 * cleared and hence a read can be avoided.
4630 if (reason
& GEN_INTR_TXTRAFFIC
)
4631 writeq(S2IO_MINUS_ONE
, &bar0
->tx_traffic_int
);
4633 for (i
= 0; i
< config
->tx_fifo_num
; i
++)
4634 tx_intr_handler(&mac_control
->fifos
[i
]);
4636 if (reason
& GEN_INTR_TXPIC
)
4637 s2io_txpic_intr_handle(sp
);
4640 * Reallocate the buffers from the interrupt handler itself.
4642 if (!config
->napi
) {
4643 for (i
= 0; i
< config
->rx_ring_num
; i
++)
4644 s2io_chk_rx_buffers(sp
, i
);
4646 writeq(sp
->general_int_mask
, &bar0
->general_int_mask
);
4647 readl(&bar0
->general_int_status
);
4653 /* The interrupt was not raised by us */
4663 static void s2io_updt_stats(struct s2io_nic
*sp
)
4665 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
4669 if (is_s2io_card_up(sp
)) {
4670 /* Apprx 30us on a 133 MHz bus */
4671 val64
= SET_UPDT_CLICKS(10) |
4672 STAT_CFG_ONE_SHOT_EN
| STAT_CFG_STAT_EN
;
4673 writeq(val64
, &bar0
->stat_cfg
);
4676 val64
= readq(&bar0
->stat_cfg
);
4677 if (!(val64
& BIT(0)))
4681 break; /* Updt failed */
4687 * s2io_get_stats - Updates the device statistics structure.
4688 * @dev : pointer to the device structure.
4690 * This function updates the device statistics structure in the s2io_nic
4691 * structure and returns a pointer to the same.
4693 * pointer to the updated net_device_stats structure.
4696 static struct net_device_stats
*s2io_get_stats(struct net_device
*dev
)
4698 struct s2io_nic
*sp
= dev
->priv
;
4699 struct mac_info
*mac_control
;
4700 struct config_param
*config
;
4703 mac_control
= &sp
->mac_control
;
4704 config
= &sp
->config
;
4706 /* Configure Stats for immediate updt */
4707 s2io_updt_stats(sp
);
4709 sp
->stats
.tx_packets
=
4710 le32_to_cpu(mac_control
->stats_info
->tmac_frms
);
4711 sp
->stats
.tx_errors
=
4712 le32_to_cpu(mac_control
->stats_info
->tmac_any_err_frms
);
4713 sp
->stats
.rx_errors
=
4714 le64_to_cpu(mac_control
->stats_info
->rmac_drop_frms
);
4715 sp
->stats
.multicast
=
4716 le32_to_cpu(mac_control
->stats_info
->rmac_vld_mcst_frms
);
4717 sp
->stats
.rx_length_errors
=
4718 le64_to_cpu(mac_control
->stats_info
->rmac_long_frms
);
4720 return (&sp
->stats
);
4724 * s2io_set_multicast - entry point for multicast address enable/disable.
4725 * @dev : pointer to the device structure
4727 * This function is a driver entry point which gets called by the kernel
4728 * whenever multicast addresses must be enabled/disabled. This also gets
4729 * called to set/reset promiscuous mode. Depending on the deivce flag, we
4730 * determine, if multicast address must be enabled or if promiscuous mode
4731 * is to be disabled etc.
4736 static void s2io_set_multicast(struct net_device
*dev
)
4739 struct dev_mc_list
*mclist
;
4740 struct s2io_nic
*sp
= dev
->priv
;
4741 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
4742 u64 val64
= 0, multi_mac
= 0x010203040506ULL
, mask
=
4744 u64 dis_addr
= 0xffffffffffffULL
, mac_addr
= 0;
4747 if ((dev
->flags
& IFF_ALLMULTI
) && (!sp
->m_cast_flg
)) {
4748 /* Enable all Multicast addresses */
4749 writeq(RMAC_ADDR_DATA0_MEM_ADDR(multi_mac
),
4750 &bar0
->rmac_addr_data0_mem
);
4751 writeq(RMAC_ADDR_DATA1_MEM_MASK(mask
),
4752 &bar0
->rmac_addr_data1_mem
);
4753 val64
= RMAC_ADDR_CMD_MEM_WE
|
4754 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD
|
4755 RMAC_ADDR_CMD_MEM_OFFSET(MAC_MC_ALL_MC_ADDR_OFFSET
);
4756 writeq(val64
, &bar0
->rmac_addr_cmd_mem
);
4757 /* Wait till command completes */
4758 wait_for_cmd_complete(&bar0
->rmac_addr_cmd_mem
,
4759 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING
,
4763 sp
->all_multi_pos
= MAC_MC_ALL_MC_ADDR_OFFSET
;
4764 } else if ((dev
->flags
& IFF_ALLMULTI
) && (sp
->m_cast_flg
)) {
4765 /* Disable all Multicast addresses */
4766 writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr
),
4767 &bar0
->rmac_addr_data0_mem
);
4768 writeq(RMAC_ADDR_DATA1_MEM_MASK(0x0),
4769 &bar0
->rmac_addr_data1_mem
);
4770 val64
= RMAC_ADDR_CMD_MEM_WE
|
4771 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD
|
4772 RMAC_ADDR_CMD_MEM_OFFSET(sp
->all_multi_pos
);
4773 writeq(val64
, &bar0
->rmac_addr_cmd_mem
);
4774 /* Wait till command completes */
4775 wait_for_cmd_complete(&bar0
->rmac_addr_cmd_mem
,
4776 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING
,
4780 sp
->all_multi_pos
= 0;
4783 if ((dev
->flags
& IFF_PROMISC
) && (!sp
->promisc_flg
)) {
4784 /* Put the NIC into promiscuous mode */
4785 add
= &bar0
->mac_cfg
;
4786 val64
= readq(&bar0
->mac_cfg
);
4787 val64
|= MAC_CFG_RMAC_PROM_ENABLE
;
4789 writeq(RMAC_CFG_KEY(0x4C0D), &bar0
->rmac_cfg_key
);
4790 writel((u32
) val64
, add
);
4791 writeq(RMAC_CFG_KEY(0x4C0D), &bar0
->rmac_cfg_key
);
4792 writel((u32
) (val64
>> 32), (add
+ 4));
4794 if (vlan_tag_strip
!= 1) {
4795 val64
= readq(&bar0
->rx_pa_cfg
);
4796 val64
&= ~RX_PA_CFG_STRIP_VLAN_TAG
;
4797 writeq(val64
, &bar0
->rx_pa_cfg
);
4798 vlan_strip_flag
= 0;
4801 val64
= readq(&bar0
->mac_cfg
);
4802 sp
->promisc_flg
= 1;
4803 DBG_PRINT(INFO_DBG
, "%s: entered promiscuous mode\n",
4805 } else if (!(dev
->flags
& IFF_PROMISC
) && (sp
->promisc_flg
)) {
4806 /* Remove the NIC from promiscuous mode */
4807 add
= &bar0
->mac_cfg
;
4808 val64
= readq(&bar0
->mac_cfg
);
4809 val64
&= ~MAC_CFG_RMAC_PROM_ENABLE
;
4811 writeq(RMAC_CFG_KEY(0x4C0D), &bar0
->rmac_cfg_key
);
4812 writel((u32
) val64
, add
);
4813 writeq(RMAC_CFG_KEY(0x4C0D), &bar0
->rmac_cfg_key
);
4814 writel((u32
) (val64
>> 32), (add
+ 4));
4816 if (vlan_tag_strip
!= 0) {
4817 val64
= readq(&bar0
->rx_pa_cfg
);
4818 val64
|= RX_PA_CFG_STRIP_VLAN_TAG
;
4819 writeq(val64
, &bar0
->rx_pa_cfg
);
4820 vlan_strip_flag
= 1;
4823 val64
= readq(&bar0
->mac_cfg
);
4824 sp
->promisc_flg
= 0;
4825 DBG_PRINT(INFO_DBG
, "%s: left promiscuous mode\n",
4829 /* Update individual M_CAST address list */
4830 if ((!sp
->m_cast_flg
) && dev
->mc_count
) {
4832 (MAX_ADDRS_SUPPORTED
- MAC_MC_ADDR_START_OFFSET
- 1)) {
4833 DBG_PRINT(ERR_DBG
, "%s: No more Rx filters ",
4835 DBG_PRINT(ERR_DBG
, "can be added, please enable ");
4836 DBG_PRINT(ERR_DBG
, "ALL_MULTI instead\n");
4840 prev_cnt
= sp
->mc_addr_count
;
4841 sp
->mc_addr_count
= dev
->mc_count
;
4843 /* Clear out the previous list of Mc in the H/W. */
4844 for (i
= 0; i
< prev_cnt
; i
++) {
4845 writeq(RMAC_ADDR_DATA0_MEM_ADDR(dis_addr
),
4846 &bar0
->rmac_addr_data0_mem
);
4847 writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL),
4848 &bar0
->rmac_addr_data1_mem
);
4849 val64
= RMAC_ADDR_CMD_MEM_WE
|
4850 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD
|
4851 RMAC_ADDR_CMD_MEM_OFFSET
4852 (MAC_MC_ADDR_START_OFFSET
+ i
);
4853 writeq(val64
, &bar0
->rmac_addr_cmd_mem
);
4855 /* Wait for command completes */
4856 if (wait_for_cmd_complete(&bar0
->rmac_addr_cmd_mem
,
4857 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING
,
4859 DBG_PRINT(ERR_DBG
, "%s: Adding ",
4861 DBG_PRINT(ERR_DBG
, "Multicasts failed\n");
4866 /* Create the new Rx filter list and update the same in H/W. */
4867 for (i
= 0, mclist
= dev
->mc_list
; i
< dev
->mc_count
;
4868 i
++, mclist
= mclist
->next
) {
4869 memcpy(sp
->usr_addrs
[i
].addr
, mclist
->dmi_addr
,
4872 for (j
= 0; j
< ETH_ALEN
; j
++) {
4873 mac_addr
|= mclist
->dmi_addr
[j
];
4877 writeq(RMAC_ADDR_DATA0_MEM_ADDR(mac_addr
),
4878 &bar0
->rmac_addr_data0_mem
);
4879 writeq(RMAC_ADDR_DATA1_MEM_MASK(0ULL),
4880 &bar0
->rmac_addr_data1_mem
);
4881 val64
= RMAC_ADDR_CMD_MEM_WE
|
4882 RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD
|
4883 RMAC_ADDR_CMD_MEM_OFFSET
4884 (i
+ MAC_MC_ADDR_START_OFFSET
);
4885 writeq(val64
, &bar0
->rmac_addr_cmd_mem
);
4887 /* Wait for command completes */
4888 if (wait_for_cmd_complete(&bar0
->rmac_addr_cmd_mem
,
4889 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING
,
4891 DBG_PRINT(ERR_DBG
, "%s: Adding ",
4893 DBG_PRINT(ERR_DBG
, "Multicasts failed\n");
4901 * s2io_set_mac_addr - Programs the Xframe mac address
4902 * @dev : pointer to the device structure.
4903 * @addr: a uchar pointer to the new mac address which is to be set.
4904 * Description : This procedure will program the Xframe to receive
4905 * frames with new Mac Address
4906 * Return value: SUCCESS on success and an appropriate (-)ve integer
4907 * as defined in errno.h file on failure.
4910 static int s2io_set_mac_addr(struct net_device
*dev
, u8
* addr
)
4912 struct s2io_nic
*sp
= dev
->priv
;
4913 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
4914 register u64 val64
, mac_addr
= 0;
4916 u64 old_mac_addr
= 0;
4919 * Set the new MAC address as the new unicast filter and reflect this
4920 * change on the device address registered with the OS. It will be
4923 for (i
= 0; i
< ETH_ALEN
; i
++) {
4925 mac_addr
|= addr
[i
];
4927 old_mac_addr
|= sp
->def_mac_addr
[0].mac_addr
[i
];
4933 /* Update the internal structure with this new mac address */
4934 if(mac_addr
!= old_mac_addr
) {
4935 memset(sp
->def_mac_addr
[0].mac_addr
, 0, sizeof(ETH_ALEN
));
4936 sp
->def_mac_addr
[0].mac_addr
[5] = (u8
) (mac_addr
);
4937 sp
->def_mac_addr
[0].mac_addr
[4] = (u8
) (mac_addr
>> 8);
4938 sp
->def_mac_addr
[0].mac_addr
[3] = (u8
) (mac_addr
>> 16);
4939 sp
->def_mac_addr
[0].mac_addr
[2] = (u8
) (mac_addr
>> 24);
4940 sp
->def_mac_addr
[0].mac_addr
[1] = (u8
) (mac_addr
>> 32);
4941 sp
->def_mac_addr
[0].mac_addr
[0] = (u8
) (mac_addr
>> 40);
4944 writeq(RMAC_ADDR_DATA0_MEM_ADDR(mac_addr
),
4945 &bar0
->rmac_addr_data0_mem
);
4948 RMAC_ADDR_CMD_MEM_WE
| RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD
|
4949 RMAC_ADDR_CMD_MEM_OFFSET(0);
4950 writeq(val64
, &bar0
->rmac_addr_cmd_mem
);
4951 /* Wait till command completes */
4952 if (wait_for_cmd_complete(&bar0
->rmac_addr_cmd_mem
,
4953 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING
, S2IO_BIT_RESET
)) {
4954 DBG_PRINT(ERR_DBG
, "%s: set_mac_addr failed\n", dev
->name
);
4962 * s2io_ethtool_sset - Sets different link parameters.
4963 * @sp : private member of the device structure, which is a pointer to the * s2io_nic structure.
4964 * @info: pointer to the structure with parameters given by ethtool to set
4967 * The function sets different link parameters provided by the user onto
4973 static int s2io_ethtool_sset(struct net_device
*dev
,
4974 struct ethtool_cmd
*info
)
4976 struct s2io_nic
*sp
= dev
->priv
;
4977 if ((info
->autoneg
== AUTONEG_ENABLE
) ||
4978 (info
->speed
!= SPEED_10000
) || (info
->duplex
!= DUPLEX_FULL
))
4981 s2io_close(sp
->dev
);
4989 * s2io_ethtol_gset - Return link specific information.
4990 * @sp : private member of the device structure, pointer to the
4991 * s2io_nic structure.
4992 * @info : pointer to the structure with parameters given by ethtool
4993 * to return link information.
4995 * Returns link specific information like speed, duplex etc.. to ethtool.
4997 * return 0 on success.
5000 static int s2io_ethtool_gset(struct net_device
*dev
, struct ethtool_cmd
*info
)
5002 struct s2io_nic
*sp
= dev
->priv
;
5003 info
->supported
= (SUPPORTED_10000baseT_Full
| SUPPORTED_FIBRE
);
5004 info
->advertising
= (SUPPORTED_10000baseT_Full
| SUPPORTED_FIBRE
);
5005 info
->port
= PORT_FIBRE
;
5006 /* info->transceiver?? TODO */
5008 if (netif_carrier_ok(sp
->dev
)) {
5009 info
->speed
= 10000;
5010 info
->duplex
= DUPLEX_FULL
;
5016 info
->autoneg
= AUTONEG_DISABLE
;
5021 * s2io_ethtool_gdrvinfo - Returns driver specific information.
5022 * @sp : private member of the device structure, which is a pointer to the
5023 * s2io_nic structure.
5024 * @info : pointer to the structure with parameters given by ethtool to
5025 * return driver information.
5027 * Returns driver specefic information like name, version etc.. to ethtool.
5032 static void s2io_ethtool_gdrvinfo(struct net_device
*dev
,
5033 struct ethtool_drvinfo
*info
)
5035 struct s2io_nic
*sp
= dev
->priv
;
5037 strncpy(info
->driver
, s2io_driver_name
, sizeof(info
->driver
));
5038 strncpy(info
->version
, s2io_driver_version
, sizeof(info
->version
));
5039 strncpy(info
->fw_version
, "", sizeof(info
->fw_version
));
5040 strncpy(info
->bus_info
, pci_name(sp
->pdev
), sizeof(info
->bus_info
));
5041 info
->regdump_len
= XENA_REG_SPACE
;
5042 info
->eedump_len
= XENA_EEPROM_SPACE
;
5043 info
->testinfo_len
= S2IO_TEST_LEN
;
5045 if (sp
->device_type
== XFRAME_I_DEVICE
)
5046 info
->n_stats
= XFRAME_I_STAT_LEN
;
5048 info
->n_stats
= XFRAME_II_STAT_LEN
;
5052 * s2io_ethtool_gregs - dumps the entire space of Xfame into the buffer.
5053 * @sp: private member of the device structure, which is a pointer to the
5054 * s2io_nic structure.
5055 * @regs : pointer to the structure with parameters given by ethtool for
5056 * dumping the registers.
5057 * @reg_space: The input argumnet into which all the registers are dumped.
5059 * Dumps the entire register space of xFrame NIC into the user given
5065 static void s2io_ethtool_gregs(struct net_device
*dev
,
5066 struct ethtool_regs
*regs
, void *space
)
5070 u8
*reg_space
= (u8
*) space
;
5071 struct s2io_nic
*sp
= dev
->priv
;
5073 regs
->len
= XENA_REG_SPACE
;
5074 regs
->version
= sp
->pdev
->subsystem_device
;
5076 for (i
= 0; i
< regs
->len
; i
+= 8) {
5077 reg
= readq(sp
->bar0
+ i
);
5078 memcpy((reg_space
+ i
), ®
, 8);
5083 * s2io_phy_id - timer function that alternates adapter LED.
5084 * @data : address of the private member of the device structure, which
5085 * is a pointer to the s2io_nic structure, provided as an u32.
5086 * Description: This is actually the timer function that alternates the
5087 * adapter LED bit of the adapter control bit to set/reset every time on
5088 * invocation. The timer is set for 1/2 a second, hence tha NIC blinks
5089 * once every second.
5091 static void s2io_phy_id(unsigned long data
)
5093 struct s2io_nic
*sp
= (struct s2io_nic
*) data
;
5094 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
5098 subid
= sp
->pdev
->subsystem_device
;
5099 if ((sp
->device_type
== XFRAME_II_DEVICE
) ||
5100 ((subid
& 0xFF) >= 0x07)) {
5101 val64
= readq(&bar0
->gpio_control
);
5102 val64
^= GPIO_CTRL_GPIO_0
;
5103 writeq(val64
, &bar0
->gpio_control
);
5105 val64
= readq(&bar0
->adapter_control
);
5106 val64
^= ADAPTER_LED_ON
;
5107 writeq(val64
, &bar0
->adapter_control
);
5110 mod_timer(&sp
->id_timer
, jiffies
+ HZ
/ 2);
5114 * s2io_ethtool_idnic - To physically identify the nic on the system.
5115 * @sp : private member of the device structure, which is a pointer to the
5116 * s2io_nic structure.
5117 * @id : pointer to the structure with identification parameters given by
5119 * Description: Used to physically identify the NIC on the system.
5120 * The Link LED will blink for a time specified by the user for
5122 * NOTE: The Link has to be Up to be able to blink the LED. Hence
5123 * identification is possible only if it's link is up.
5125 * int , returns 0 on success
5128 static int s2io_ethtool_idnic(struct net_device
*dev
, u32 data
)
5130 u64 val64
= 0, last_gpio_ctrl_val
;
5131 struct s2io_nic
*sp
= dev
->priv
;
5132 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
5135 subid
= sp
->pdev
->subsystem_device
;
5136 last_gpio_ctrl_val
= readq(&bar0
->gpio_control
);
5137 if ((sp
->device_type
== XFRAME_I_DEVICE
) &&
5138 ((subid
& 0xFF) < 0x07)) {
5139 val64
= readq(&bar0
->adapter_control
);
5140 if (!(val64
& ADAPTER_CNTL_EN
)) {
5142 "Adapter Link down, cannot blink LED\n");
5146 if (sp
->id_timer
.function
== NULL
) {
5147 init_timer(&sp
->id_timer
);
5148 sp
->id_timer
.function
= s2io_phy_id
;
5149 sp
->id_timer
.data
= (unsigned long) sp
;
5151 mod_timer(&sp
->id_timer
, jiffies
);
5153 msleep_interruptible(data
* HZ
);
5155 msleep_interruptible(MAX_FLICKER_TIME
);
5156 del_timer_sync(&sp
->id_timer
);
5158 if (CARDS_WITH_FAULTY_LINK_INDICATORS(sp
->device_type
, subid
)) {
5159 writeq(last_gpio_ctrl_val
, &bar0
->gpio_control
);
5160 last_gpio_ctrl_val
= readq(&bar0
->gpio_control
);
5166 static void s2io_ethtool_gringparam(struct net_device
*dev
,
5167 struct ethtool_ringparam
*ering
)
5169 struct s2io_nic
*sp
= dev
->priv
;
5170 int i
,tx_desc_count
=0,rx_desc_count
=0;
5172 if (sp
->rxd_mode
== RXD_MODE_1
)
5173 ering
->rx_max_pending
= MAX_RX_DESC_1
;
5174 else if (sp
->rxd_mode
== RXD_MODE_3B
)
5175 ering
->rx_max_pending
= MAX_RX_DESC_2
;
5177 ering
->tx_max_pending
= MAX_TX_DESC
;
5178 for (i
= 0 ; i
< sp
->config
.tx_fifo_num
; i
++)
5179 tx_desc_count
+= sp
->config
.tx_cfg
[i
].fifo_len
;
5181 DBG_PRINT(INFO_DBG
,"\nmax txds : %d\n",sp
->config
.max_txds
);
5182 ering
->tx_pending
= tx_desc_count
;
5184 for (i
= 0 ; i
< sp
->config
.rx_ring_num
; i
++)
5185 rx_desc_count
+= sp
->config
.rx_cfg
[i
].num_rxd
;
5187 ering
->rx_pending
= rx_desc_count
;
5189 ering
->rx_mini_max_pending
= 0;
5190 ering
->rx_mini_pending
= 0;
5191 if(sp
->rxd_mode
== RXD_MODE_1
)
5192 ering
->rx_jumbo_max_pending
= MAX_RX_DESC_1
;
5193 else if (sp
->rxd_mode
== RXD_MODE_3B
)
5194 ering
->rx_jumbo_max_pending
= MAX_RX_DESC_2
;
5195 ering
->rx_jumbo_pending
= rx_desc_count
;
5199 * s2io_ethtool_getpause_data -Pause frame frame generation and reception.
5200 * @sp : private member of the device structure, which is a pointer to the
5201 * s2io_nic structure.
5202 * @ep : pointer to the structure with pause parameters given by ethtool.
5204 * Returns the Pause frame generation and reception capability of the NIC.
5208 static void s2io_ethtool_getpause_data(struct net_device
*dev
,
5209 struct ethtool_pauseparam
*ep
)
5212 struct s2io_nic
*sp
= dev
->priv
;
5213 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
5215 val64
= readq(&bar0
->rmac_pause_cfg
);
5216 if (val64
& RMAC_PAUSE_GEN_ENABLE
)
5217 ep
->tx_pause
= TRUE
;
5218 if (val64
& RMAC_PAUSE_RX_ENABLE
)
5219 ep
->rx_pause
= TRUE
;
5220 ep
->autoneg
= FALSE
;
5224 * s2io_ethtool_setpause_data - set/reset pause frame generation.
5225 * @sp : private member of the device structure, which is a pointer to the
5226 * s2io_nic structure.
5227 * @ep : pointer to the structure with pause parameters given by ethtool.
5229 * It can be used to set or reset Pause frame generation or reception
5230 * support of the NIC.
5232 * int, returns 0 on Success
5235 static int s2io_ethtool_setpause_data(struct net_device
*dev
,
5236 struct ethtool_pauseparam
*ep
)
5239 struct s2io_nic
*sp
= dev
->priv
;
5240 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
5242 val64
= readq(&bar0
->rmac_pause_cfg
);
5244 val64
|= RMAC_PAUSE_GEN_ENABLE
;
5246 val64
&= ~RMAC_PAUSE_GEN_ENABLE
;
5248 val64
|= RMAC_PAUSE_RX_ENABLE
;
5250 val64
&= ~RMAC_PAUSE_RX_ENABLE
;
5251 writeq(val64
, &bar0
->rmac_pause_cfg
);
5256 * read_eeprom - reads 4 bytes of data from user given offset.
5257 * @sp : private member of the device structure, which is a pointer to the
5258 * s2io_nic structure.
5259 * @off : offset at which the data must be written
5260 * @data : Its an output parameter where the data read at the given
5263 * Will read 4 bytes of data from the user given offset and return the
5265 * NOTE: Will allow to read only part of the EEPROM visible through the
5268 * -1 on failure and 0 on success.
5271 #define S2IO_DEV_ID 5
5272 static int read_eeprom(struct s2io_nic
* sp
, int off
, u64
* data
)
5277 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
5279 if (sp
->device_type
== XFRAME_I_DEVICE
) {
5280 val64
= I2C_CONTROL_DEV_ID(S2IO_DEV_ID
) | I2C_CONTROL_ADDR(off
) |
5281 I2C_CONTROL_BYTE_CNT(0x3) | I2C_CONTROL_READ
|
5282 I2C_CONTROL_CNTL_START
;
5283 SPECIAL_REG_WRITE(val64
, &bar0
->i2c_control
, LF
);
5285 while (exit_cnt
< 5) {
5286 val64
= readq(&bar0
->i2c_control
);
5287 if (I2C_CONTROL_CNTL_END(val64
)) {
5288 *data
= I2C_CONTROL_GET_DATA(val64
);
5297 if (sp
->device_type
== XFRAME_II_DEVICE
) {
5298 val64
= SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1
|
5299 SPI_CONTROL_BYTECNT(0x3) |
5300 SPI_CONTROL_CMD(0x3) | SPI_CONTROL_ADDR(off
);
5301 SPECIAL_REG_WRITE(val64
, &bar0
->spi_control
, LF
);
5302 val64
|= SPI_CONTROL_REQ
;
5303 SPECIAL_REG_WRITE(val64
, &bar0
->spi_control
, LF
);
5304 while (exit_cnt
< 5) {
5305 val64
= readq(&bar0
->spi_control
);
5306 if (val64
& SPI_CONTROL_NACK
) {
5309 } else if (val64
& SPI_CONTROL_DONE
) {
5310 *data
= readq(&bar0
->spi_data
);
5323 * write_eeprom - actually writes the relevant part of the data value.
5324 * @sp : private member of the device structure, which is a pointer to the
5325 * s2io_nic structure.
5326 * @off : offset at which the data must be written
5327 * @data : The data that is to be written
5328 * @cnt : Number of bytes of the data that are actually to be written into
5329 * the Eeprom. (max of 3)
5331 * Actually writes the relevant part of the data value into the Eeprom
5332 * through the I2C bus.
5334 * 0 on success, -1 on failure.
5337 static int write_eeprom(struct s2io_nic
* sp
, int off
, u64 data
, int cnt
)
5339 int exit_cnt
= 0, ret
= -1;
5341 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
5343 if (sp
->device_type
== XFRAME_I_DEVICE
) {
5344 val64
= I2C_CONTROL_DEV_ID(S2IO_DEV_ID
) | I2C_CONTROL_ADDR(off
) |
5345 I2C_CONTROL_BYTE_CNT(cnt
) | I2C_CONTROL_SET_DATA((u32
)data
) |
5346 I2C_CONTROL_CNTL_START
;
5347 SPECIAL_REG_WRITE(val64
, &bar0
->i2c_control
, LF
);
5349 while (exit_cnt
< 5) {
5350 val64
= readq(&bar0
->i2c_control
);
5351 if (I2C_CONTROL_CNTL_END(val64
)) {
5352 if (!(val64
& I2C_CONTROL_NACK
))
5361 if (sp
->device_type
== XFRAME_II_DEVICE
) {
5362 int write_cnt
= (cnt
== 8) ? 0 : cnt
;
5363 writeq(SPI_DATA_WRITE(data
,(cnt
<<3)), &bar0
->spi_data
);
5365 val64
= SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1
|
5366 SPI_CONTROL_BYTECNT(write_cnt
) |
5367 SPI_CONTROL_CMD(0x2) | SPI_CONTROL_ADDR(off
);
5368 SPECIAL_REG_WRITE(val64
, &bar0
->spi_control
, LF
);
5369 val64
|= SPI_CONTROL_REQ
;
5370 SPECIAL_REG_WRITE(val64
, &bar0
->spi_control
, LF
);
5371 while (exit_cnt
< 5) {
5372 val64
= readq(&bar0
->spi_control
);
5373 if (val64
& SPI_CONTROL_NACK
) {
5376 } else if (val64
& SPI_CONTROL_DONE
) {
5386 static void s2io_vpd_read(struct s2io_nic
*nic
)
5390 int i
=0, cnt
, fail
= 0;
5391 int vpd_addr
= 0x80;
5393 if (nic
->device_type
== XFRAME_II_DEVICE
) {
5394 strcpy(nic
->product_name
, "Xframe II 10GbE network adapter");
5398 strcpy(nic
->product_name
, "Xframe I 10GbE network adapter");
5401 strcpy(nic
->serial_num
, "NOT AVAILABLE");
5403 vpd_data
= kmalloc(256, GFP_KERNEL
);
5405 nic
->mac_control
.stats_info
->sw_stat
.mem_alloc_fail_cnt
++;
5408 nic
->mac_control
.stats_info
->sw_stat
.mem_allocated
+= 256;
5410 for (i
= 0; i
< 256; i
+=4 ) {
5411 pci_write_config_byte(nic
->pdev
, (vpd_addr
+ 2), i
);
5412 pci_read_config_byte(nic
->pdev
, (vpd_addr
+ 2), &data
);
5413 pci_write_config_byte(nic
->pdev
, (vpd_addr
+ 3), 0);
5414 for (cnt
= 0; cnt
<5; cnt
++) {
5416 pci_read_config_byte(nic
->pdev
, (vpd_addr
+ 3), &data
);
5421 DBG_PRINT(ERR_DBG
, "Read of VPD data failed\n");
5425 pci_read_config_dword(nic
->pdev
, (vpd_addr
+ 4),
5426 (u32
*)&vpd_data
[i
]);
5430 /* read serial number of adapter */
5431 for (cnt
= 0; cnt
< 256; cnt
++) {
5432 if ((vpd_data
[cnt
] == 'S') &&
5433 (vpd_data
[cnt
+1] == 'N') &&
5434 (vpd_data
[cnt
+2] < VPD_STRING_LEN
)) {
5435 memset(nic
->serial_num
, 0, VPD_STRING_LEN
);
5436 memcpy(nic
->serial_num
, &vpd_data
[cnt
+ 3],
5443 if ((!fail
) && (vpd_data
[1] < VPD_STRING_LEN
)) {
5444 memset(nic
->product_name
, 0, vpd_data
[1]);
5445 memcpy(nic
->product_name
, &vpd_data
[3], vpd_data
[1]);
5448 nic
->mac_control
.stats_info
->sw_stat
.mem_freed
+= 256;
5452 * s2io_ethtool_geeprom - reads the value stored in the Eeprom.
5453 * @sp : private member of the device structure, which is a pointer to the * s2io_nic structure.
5454 * @eeprom : pointer to the user level structure provided by ethtool,
5455 * containing all relevant information.
5456 * @data_buf : user defined value to be written into Eeprom.
5457 * Description: Reads the values stored in the Eeprom at given offset
5458 * for a given length. Stores these values int the input argument data
5459 * buffer 'data_buf' and returns these to the caller (ethtool.)
5464 static int s2io_ethtool_geeprom(struct net_device
*dev
,
5465 struct ethtool_eeprom
*eeprom
, u8
* data_buf
)
5469 struct s2io_nic
*sp
= dev
->priv
;
5471 eeprom
->magic
= sp
->pdev
->vendor
| (sp
->pdev
->device
<< 16);
5473 if ((eeprom
->offset
+ eeprom
->len
) > (XENA_EEPROM_SPACE
))
5474 eeprom
->len
= XENA_EEPROM_SPACE
- eeprom
->offset
;
5476 for (i
= 0; i
< eeprom
->len
; i
+= 4) {
5477 if (read_eeprom(sp
, (eeprom
->offset
+ i
), &data
)) {
5478 DBG_PRINT(ERR_DBG
, "Read of EEPROM failed\n");
5482 memcpy((data_buf
+ i
), &valid
, 4);
5488 * s2io_ethtool_seeprom - tries to write the user provided value in Eeprom
5489 * @sp : private member of the device structure, which is a pointer to the
5490 * s2io_nic structure.
5491 * @eeprom : pointer to the user level structure provided by ethtool,
5492 * containing all relevant information.
5493 * @data_buf ; user defined value to be written into Eeprom.
5495 * Tries to write the user provided value in the Eeprom, at the offset
5496 * given by the user.
5498 * 0 on success, -EFAULT on failure.
5501 static int s2io_ethtool_seeprom(struct net_device
*dev
,
5502 struct ethtool_eeprom
*eeprom
,
5505 int len
= eeprom
->len
, cnt
= 0;
5506 u64 valid
= 0, data
;
5507 struct s2io_nic
*sp
= dev
->priv
;
5509 if (eeprom
->magic
!= (sp
->pdev
->vendor
| (sp
->pdev
->device
<< 16))) {
5511 "ETHTOOL_WRITE_EEPROM Err: Magic value ");
5512 DBG_PRINT(ERR_DBG
, "is wrong, Its not 0x%x\n",
5518 data
= (u32
) data_buf
[cnt
] & 0x000000FF;
5520 valid
= (u32
) (data
<< 24);
5524 if (write_eeprom(sp
, (eeprom
->offset
+ cnt
), valid
, 0)) {
5526 "ETHTOOL_WRITE_EEPROM Err: Cannot ");
5528 "write into the specified offset\n");
5539 * s2io_register_test - reads and writes into all clock domains.
5540 * @sp : private member of the device structure, which is a pointer to the
5541 * s2io_nic structure.
5542 * @data : variable that returns the result of each of the test conducted b
5545 * Read and write into all clock domains. The NIC has 3 clock domains,
5546 * see that registers in all the three regions are accessible.
5551 static int s2io_register_test(struct s2io_nic
* sp
, uint64_t * data
)
5553 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
5554 u64 val64
= 0, exp_val
;
5557 val64
= readq(&bar0
->pif_rd_swapper_fb
);
5558 if (val64
!= 0x123456789abcdefULL
) {
5560 DBG_PRINT(INFO_DBG
, "Read Test level 1 fails\n");
5563 val64
= readq(&bar0
->rmac_pause_cfg
);
5564 if (val64
!= 0xc000ffff00000000ULL
) {
5566 DBG_PRINT(INFO_DBG
, "Read Test level 2 fails\n");
5569 val64
= readq(&bar0
->rx_queue_cfg
);
5570 if (sp
->device_type
== XFRAME_II_DEVICE
)
5571 exp_val
= 0x0404040404040404ULL
;
5573 exp_val
= 0x0808080808080808ULL
;
5574 if (val64
!= exp_val
) {
5576 DBG_PRINT(INFO_DBG
, "Read Test level 3 fails\n");
5579 val64
= readq(&bar0
->xgxs_efifo_cfg
);
5580 if (val64
!= 0x000000001923141EULL
) {
5582 DBG_PRINT(INFO_DBG
, "Read Test level 4 fails\n");
5585 val64
= 0x5A5A5A5A5A5A5A5AULL
;
5586 writeq(val64
, &bar0
->xmsi_data
);
5587 val64
= readq(&bar0
->xmsi_data
);
5588 if (val64
!= 0x5A5A5A5A5A5A5A5AULL
) {
5590 DBG_PRINT(ERR_DBG
, "Write Test level 1 fails\n");
5593 val64
= 0xA5A5A5A5A5A5A5A5ULL
;
5594 writeq(val64
, &bar0
->xmsi_data
);
5595 val64
= readq(&bar0
->xmsi_data
);
5596 if (val64
!= 0xA5A5A5A5A5A5A5A5ULL
) {
5598 DBG_PRINT(ERR_DBG
, "Write Test level 2 fails\n");
5606 * s2io_eeprom_test - to verify that EEprom in the xena can be programmed.
5607 * @sp : private member of the device structure, which is a pointer to the
5608 * s2io_nic structure.
5609 * @data:variable that returns the result of each of the test conducted by
5612 * Verify that EEPROM in the xena can be programmed using I2C_CONTROL
5618 static int s2io_eeprom_test(struct s2io_nic
* sp
, uint64_t * data
)
5621 u64 ret_data
, org_4F0
, org_7F0
;
5622 u8 saved_4F0
= 0, saved_7F0
= 0;
5623 struct net_device
*dev
= sp
->dev
;
5625 /* Test Write Error at offset 0 */
5626 /* Note that SPI interface allows write access to all areas
5627 * of EEPROM. Hence doing all negative testing only for Xframe I.
5629 if (sp
->device_type
== XFRAME_I_DEVICE
)
5630 if (!write_eeprom(sp
, 0, 0, 3))
5633 /* Save current values at offsets 0x4F0 and 0x7F0 */
5634 if (!read_eeprom(sp
, 0x4F0, &org_4F0
))
5636 if (!read_eeprom(sp
, 0x7F0, &org_7F0
))
5639 /* Test Write at offset 4f0 */
5640 if (write_eeprom(sp
, 0x4F0, 0x012345, 3))
5642 if (read_eeprom(sp
, 0x4F0, &ret_data
))
5645 if (ret_data
!= 0x012345) {
5646 DBG_PRINT(ERR_DBG
, "%s: eeprom test error at offset 0x4F0. "
5647 "Data written %llx Data read %llx\n",
5648 dev
->name
, (unsigned long long)0x12345,
5649 (unsigned long long)ret_data
);
5653 /* Reset the EEPROM data go FFFF */
5654 write_eeprom(sp
, 0x4F0, 0xFFFFFF, 3);
5656 /* Test Write Request Error at offset 0x7c */
5657 if (sp
->device_type
== XFRAME_I_DEVICE
)
5658 if (!write_eeprom(sp
, 0x07C, 0, 3))
5661 /* Test Write Request at offset 0x7f0 */
5662 if (write_eeprom(sp
, 0x7F0, 0x012345, 3))
5664 if (read_eeprom(sp
, 0x7F0, &ret_data
))
5667 if (ret_data
!= 0x012345) {
5668 DBG_PRINT(ERR_DBG
, "%s: eeprom test error at offset 0x7F0. "
5669 "Data written %llx Data read %llx\n",
5670 dev
->name
, (unsigned long long)0x12345,
5671 (unsigned long long)ret_data
);
5675 /* Reset the EEPROM data go FFFF */
5676 write_eeprom(sp
, 0x7F0, 0xFFFFFF, 3);
5678 if (sp
->device_type
== XFRAME_I_DEVICE
) {
5679 /* Test Write Error at offset 0x80 */
5680 if (!write_eeprom(sp
, 0x080, 0, 3))
5683 /* Test Write Error at offset 0xfc */
5684 if (!write_eeprom(sp
, 0x0FC, 0, 3))
5687 /* Test Write Error at offset 0x100 */
5688 if (!write_eeprom(sp
, 0x100, 0, 3))
5691 /* Test Write Error at offset 4ec */
5692 if (!write_eeprom(sp
, 0x4EC, 0, 3))
5696 /* Restore values at offsets 0x4F0 and 0x7F0 */
5698 write_eeprom(sp
, 0x4F0, org_4F0
, 3);
5700 write_eeprom(sp
, 0x7F0, org_7F0
, 3);
5707 * s2io_bist_test - invokes the MemBist test of the card .
5708 * @sp : private member of the device structure, which is a pointer to the
5709 * s2io_nic structure.
5710 * @data:variable that returns the result of each of the test conducted by
5713 * This invokes the MemBist test of the card. We give around
5714 * 2 secs time for the Test to complete. If it's still not complete
5715 * within this peiod, we consider that the test failed.
5717 * 0 on success and -1 on failure.
5720 static int s2io_bist_test(struct s2io_nic
* sp
, uint64_t * data
)
5723 int cnt
= 0, ret
= -1;
5725 pci_read_config_byte(sp
->pdev
, PCI_BIST
, &bist
);
5726 bist
|= PCI_BIST_START
;
5727 pci_write_config_word(sp
->pdev
, PCI_BIST
, bist
);
5730 pci_read_config_byte(sp
->pdev
, PCI_BIST
, &bist
);
5731 if (!(bist
& PCI_BIST_START
)) {
5732 *data
= (bist
& PCI_BIST_CODE_MASK
);
5744 * s2io-link_test - verifies the link state of the nic
5745 * @sp ; private member of the device structure, which is a pointer to the
5746 * s2io_nic structure.
5747 * @data: variable that returns the result of each of the test conducted by
5750 * The function verifies the link state of the NIC and updates the input
5751 * argument 'data' appropriately.
5756 static int s2io_link_test(struct s2io_nic
* sp
, uint64_t * data
)
5758 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
5761 val64
= readq(&bar0
->adapter_status
);
5762 if(!(LINK_IS_UP(val64
)))
5771 * s2io_rldram_test - offline test for access to the RldRam chip on the NIC
5772 * @sp - private member of the device structure, which is a pointer to the
5773 * s2io_nic structure.
5774 * @data - variable that returns the result of each of the test
5775 * conducted by the driver.
5777 * This is one of the offline test that tests the read and write
5778 * access to the RldRam chip on the NIC.
5783 static int s2io_rldram_test(struct s2io_nic
* sp
, uint64_t * data
)
5785 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
5787 int cnt
, iteration
= 0, test_fail
= 0;
5789 val64
= readq(&bar0
->adapter_control
);
5790 val64
&= ~ADAPTER_ECC_EN
;
5791 writeq(val64
, &bar0
->adapter_control
);
5793 val64
= readq(&bar0
->mc_rldram_test_ctrl
);
5794 val64
|= MC_RLDRAM_TEST_MODE
;
5795 SPECIAL_REG_WRITE(val64
, &bar0
->mc_rldram_test_ctrl
, LF
);
5797 val64
= readq(&bar0
->mc_rldram_mrs
);
5798 val64
|= MC_RLDRAM_QUEUE_SIZE_ENABLE
;
5799 SPECIAL_REG_WRITE(val64
, &bar0
->mc_rldram_mrs
, UF
);
5801 val64
|= MC_RLDRAM_MRS_ENABLE
;
5802 SPECIAL_REG_WRITE(val64
, &bar0
->mc_rldram_mrs
, UF
);
5804 while (iteration
< 2) {
5805 val64
= 0x55555555aaaa0000ULL
;
5806 if (iteration
== 1) {
5807 val64
^= 0xFFFFFFFFFFFF0000ULL
;
5809 writeq(val64
, &bar0
->mc_rldram_test_d0
);
5811 val64
= 0xaaaa5a5555550000ULL
;
5812 if (iteration
== 1) {
5813 val64
^= 0xFFFFFFFFFFFF0000ULL
;
5815 writeq(val64
, &bar0
->mc_rldram_test_d1
);
5817 val64
= 0x55aaaaaaaa5a0000ULL
;
5818 if (iteration
== 1) {
5819 val64
^= 0xFFFFFFFFFFFF0000ULL
;
5821 writeq(val64
, &bar0
->mc_rldram_test_d2
);
5823 val64
= (u64
) (0x0000003ffffe0100ULL
);
5824 writeq(val64
, &bar0
->mc_rldram_test_add
);
5826 val64
= MC_RLDRAM_TEST_MODE
| MC_RLDRAM_TEST_WRITE
|
5828 SPECIAL_REG_WRITE(val64
, &bar0
->mc_rldram_test_ctrl
, LF
);
5830 for (cnt
= 0; cnt
< 5; cnt
++) {
5831 val64
= readq(&bar0
->mc_rldram_test_ctrl
);
5832 if (val64
& MC_RLDRAM_TEST_DONE
)
5840 val64
= MC_RLDRAM_TEST_MODE
| MC_RLDRAM_TEST_GO
;
5841 SPECIAL_REG_WRITE(val64
, &bar0
->mc_rldram_test_ctrl
, LF
);
5843 for (cnt
= 0; cnt
< 5; cnt
++) {
5844 val64
= readq(&bar0
->mc_rldram_test_ctrl
);
5845 if (val64
& MC_RLDRAM_TEST_DONE
)
5853 val64
= readq(&bar0
->mc_rldram_test_ctrl
);
5854 if (!(val64
& MC_RLDRAM_TEST_PASS
))
5862 /* Bring the adapter out of test mode */
5863 SPECIAL_REG_WRITE(0, &bar0
->mc_rldram_test_ctrl
, LF
);
5869 * s2io_ethtool_test - conducts 6 tsets to determine the health of card.
5870 * @sp : private member of the device structure, which is a pointer to the
5871 * s2io_nic structure.
5872 * @ethtest : pointer to a ethtool command specific structure that will be
5873 * returned to the user.
5874 * @data : variable that returns the result of each of the test
5875 * conducted by the driver.
5877 * This function conducts 6 tests ( 4 offline and 2 online) to determine
5878 * the health of the card.
5883 static void s2io_ethtool_test(struct net_device
*dev
,
5884 struct ethtool_test
*ethtest
,
5887 struct s2io_nic
*sp
= dev
->priv
;
5888 int orig_state
= netif_running(sp
->dev
);
5890 if (ethtest
->flags
== ETH_TEST_FL_OFFLINE
) {
5891 /* Offline Tests. */
5893 s2io_close(sp
->dev
);
5895 if (s2io_register_test(sp
, &data
[0]))
5896 ethtest
->flags
|= ETH_TEST_FL_FAILED
;
5900 if (s2io_rldram_test(sp
, &data
[3]))
5901 ethtest
->flags
|= ETH_TEST_FL_FAILED
;
5905 if (s2io_eeprom_test(sp
, &data
[1]))
5906 ethtest
->flags
|= ETH_TEST_FL_FAILED
;
5908 if (s2io_bist_test(sp
, &data
[4]))
5909 ethtest
->flags
|= ETH_TEST_FL_FAILED
;
5919 "%s: is not up, cannot run test\n",
5928 if (s2io_link_test(sp
, &data
[2]))
5929 ethtest
->flags
|= ETH_TEST_FL_FAILED
;
5938 static void s2io_get_ethtool_stats(struct net_device
*dev
,
5939 struct ethtool_stats
*estats
,
5943 struct s2io_nic
*sp
= dev
->priv
;
5944 struct stat_block
*stat_info
= sp
->mac_control
.stats_info
;
5946 s2io_updt_stats(sp
);
5948 (u64
)le32_to_cpu(stat_info
->tmac_frms_oflow
) << 32 |
5949 le32_to_cpu(stat_info
->tmac_frms
);
5951 (u64
)le32_to_cpu(stat_info
->tmac_data_octets_oflow
) << 32 |
5952 le32_to_cpu(stat_info
->tmac_data_octets
);
5953 tmp_stats
[i
++] = le64_to_cpu(stat_info
->tmac_drop_frms
);
5955 (u64
)le32_to_cpu(stat_info
->tmac_mcst_frms_oflow
) << 32 |
5956 le32_to_cpu(stat_info
->tmac_mcst_frms
);
5958 (u64
)le32_to_cpu(stat_info
->tmac_bcst_frms_oflow
) << 32 |
5959 le32_to_cpu(stat_info
->tmac_bcst_frms
);
5960 tmp_stats
[i
++] = le64_to_cpu(stat_info
->tmac_pause_ctrl_frms
);
5962 (u64
)le32_to_cpu(stat_info
->tmac_ttl_octets_oflow
) << 32 |
5963 le32_to_cpu(stat_info
->tmac_ttl_octets
);
5965 (u64
)le32_to_cpu(stat_info
->tmac_ucst_frms_oflow
) << 32 |
5966 le32_to_cpu(stat_info
->tmac_ucst_frms
);
5968 (u64
)le32_to_cpu(stat_info
->tmac_nucst_frms_oflow
) << 32 |
5969 le32_to_cpu(stat_info
->tmac_nucst_frms
);
5971 (u64
)le32_to_cpu(stat_info
->tmac_any_err_frms_oflow
) << 32 |
5972 le32_to_cpu(stat_info
->tmac_any_err_frms
);
5973 tmp_stats
[i
++] = le64_to_cpu(stat_info
->tmac_ttl_less_fb_octets
);
5974 tmp_stats
[i
++] = le64_to_cpu(stat_info
->tmac_vld_ip_octets
);
5976 (u64
)le32_to_cpu(stat_info
->tmac_vld_ip_oflow
) << 32 |
5977 le32_to_cpu(stat_info
->tmac_vld_ip
);
5979 (u64
)le32_to_cpu(stat_info
->tmac_drop_ip_oflow
) << 32 |
5980 le32_to_cpu(stat_info
->tmac_drop_ip
);
5982 (u64
)le32_to_cpu(stat_info
->tmac_icmp_oflow
) << 32 |
5983 le32_to_cpu(stat_info
->tmac_icmp
);
5985 (u64
)le32_to_cpu(stat_info
->tmac_rst_tcp_oflow
) << 32 |
5986 le32_to_cpu(stat_info
->tmac_rst_tcp
);
5987 tmp_stats
[i
++] = le64_to_cpu(stat_info
->tmac_tcp
);
5988 tmp_stats
[i
++] = (u64
)le32_to_cpu(stat_info
->tmac_udp_oflow
) << 32 |
5989 le32_to_cpu(stat_info
->tmac_udp
);
5991 (u64
)le32_to_cpu(stat_info
->rmac_vld_frms_oflow
) << 32 |
5992 le32_to_cpu(stat_info
->rmac_vld_frms
);
5994 (u64
)le32_to_cpu(stat_info
->rmac_data_octets_oflow
) << 32 |
5995 le32_to_cpu(stat_info
->rmac_data_octets
);
5996 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_fcs_err_frms
);
5997 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_drop_frms
);
5999 (u64
)le32_to_cpu(stat_info
->rmac_vld_mcst_frms_oflow
) << 32 |
6000 le32_to_cpu(stat_info
->rmac_vld_mcst_frms
);
6002 (u64
)le32_to_cpu(stat_info
->rmac_vld_bcst_frms_oflow
) << 32 |
6003 le32_to_cpu(stat_info
->rmac_vld_bcst_frms
);
6004 tmp_stats
[i
++] = le32_to_cpu(stat_info
->rmac_in_rng_len_err_frms
);
6005 tmp_stats
[i
++] = le32_to_cpu(stat_info
->rmac_out_rng_len_err_frms
);
6006 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_long_frms
);
6007 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_pause_ctrl_frms
);
6008 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_unsup_ctrl_frms
);
6010 (u64
)le32_to_cpu(stat_info
->rmac_ttl_octets_oflow
) << 32 |
6011 le32_to_cpu(stat_info
->rmac_ttl_octets
);
6013 (u64
)le32_to_cpu(stat_info
->rmac_accepted_ucst_frms_oflow
)
6014 << 32 | le32_to_cpu(stat_info
->rmac_accepted_ucst_frms
);
6016 (u64
)le32_to_cpu(stat_info
->rmac_accepted_nucst_frms_oflow
)
6017 << 32 | le32_to_cpu(stat_info
->rmac_accepted_nucst_frms
);
6019 (u64
)le32_to_cpu(stat_info
->rmac_discarded_frms_oflow
) << 32 |
6020 le32_to_cpu(stat_info
->rmac_discarded_frms
);
6022 (u64
)le32_to_cpu(stat_info
->rmac_drop_events_oflow
)
6023 << 32 | le32_to_cpu(stat_info
->rmac_drop_events
);
6024 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_ttl_less_fb_octets
);
6025 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_ttl_frms
);
6027 (u64
)le32_to_cpu(stat_info
->rmac_usized_frms_oflow
) << 32 |
6028 le32_to_cpu(stat_info
->rmac_usized_frms
);
6030 (u64
)le32_to_cpu(stat_info
->rmac_osized_frms_oflow
) << 32 |
6031 le32_to_cpu(stat_info
->rmac_osized_frms
);
6033 (u64
)le32_to_cpu(stat_info
->rmac_frag_frms_oflow
) << 32 |
6034 le32_to_cpu(stat_info
->rmac_frag_frms
);
6036 (u64
)le32_to_cpu(stat_info
->rmac_jabber_frms_oflow
) << 32 |
6037 le32_to_cpu(stat_info
->rmac_jabber_frms
);
6038 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_ttl_64_frms
);
6039 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_ttl_65_127_frms
);
6040 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_ttl_128_255_frms
);
6041 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_ttl_256_511_frms
);
6042 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_ttl_512_1023_frms
);
6043 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_ttl_1024_1518_frms
);
6045 (u64
)le32_to_cpu(stat_info
->rmac_ip_oflow
) << 32 |
6046 le32_to_cpu(stat_info
->rmac_ip
);
6047 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_ip_octets
);
6048 tmp_stats
[i
++] = le32_to_cpu(stat_info
->rmac_hdr_err_ip
);
6050 (u64
)le32_to_cpu(stat_info
->rmac_drop_ip_oflow
) << 32 |
6051 le32_to_cpu(stat_info
->rmac_drop_ip
);
6053 (u64
)le32_to_cpu(stat_info
->rmac_icmp_oflow
) << 32 |
6054 le32_to_cpu(stat_info
->rmac_icmp
);
6055 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_tcp
);
6057 (u64
)le32_to_cpu(stat_info
->rmac_udp_oflow
) << 32 |
6058 le32_to_cpu(stat_info
->rmac_udp
);
6060 (u64
)le32_to_cpu(stat_info
->rmac_err_drp_udp_oflow
) << 32 |
6061 le32_to_cpu(stat_info
->rmac_err_drp_udp
);
6062 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_xgmii_err_sym
);
6063 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_frms_q0
);
6064 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_frms_q1
);
6065 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_frms_q2
);
6066 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_frms_q3
);
6067 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_frms_q4
);
6068 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_frms_q5
);
6069 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_frms_q6
);
6070 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_frms_q7
);
6071 tmp_stats
[i
++] = le16_to_cpu(stat_info
->rmac_full_q0
);
6072 tmp_stats
[i
++] = le16_to_cpu(stat_info
->rmac_full_q1
);
6073 tmp_stats
[i
++] = le16_to_cpu(stat_info
->rmac_full_q2
);
6074 tmp_stats
[i
++] = le16_to_cpu(stat_info
->rmac_full_q3
);
6075 tmp_stats
[i
++] = le16_to_cpu(stat_info
->rmac_full_q4
);
6076 tmp_stats
[i
++] = le16_to_cpu(stat_info
->rmac_full_q5
);
6077 tmp_stats
[i
++] = le16_to_cpu(stat_info
->rmac_full_q6
);
6078 tmp_stats
[i
++] = le16_to_cpu(stat_info
->rmac_full_q7
);
6080 (u64
)le32_to_cpu(stat_info
->rmac_pause_cnt_oflow
) << 32 |
6081 le32_to_cpu(stat_info
->rmac_pause_cnt
);
6082 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_xgmii_data_err_cnt
);
6083 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_xgmii_ctrl_err_cnt
);
6085 (u64
)le32_to_cpu(stat_info
->rmac_accepted_ip_oflow
) << 32 |
6086 le32_to_cpu(stat_info
->rmac_accepted_ip
);
6087 tmp_stats
[i
++] = le32_to_cpu(stat_info
->rmac_err_tcp
);
6088 tmp_stats
[i
++] = le32_to_cpu(stat_info
->rd_req_cnt
);
6089 tmp_stats
[i
++] = le32_to_cpu(stat_info
->new_rd_req_cnt
);
6090 tmp_stats
[i
++] = le32_to_cpu(stat_info
->new_rd_req_rtry_cnt
);
6091 tmp_stats
[i
++] = le32_to_cpu(stat_info
->rd_rtry_cnt
);
6092 tmp_stats
[i
++] = le32_to_cpu(stat_info
->wr_rtry_rd_ack_cnt
);
6093 tmp_stats
[i
++] = le32_to_cpu(stat_info
->wr_req_cnt
);
6094 tmp_stats
[i
++] = le32_to_cpu(stat_info
->new_wr_req_cnt
);
6095 tmp_stats
[i
++] = le32_to_cpu(stat_info
->new_wr_req_rtry_cnt
);
6096 tmp_stats
[i
++] = le32_to_cpu(stat_info
->wr_rtry_cnt
);
6097 tmp_stats
[i
++] = le32_to_cpu(stat_info
->wr_disc_cnt
);
6098 tmp_stats
[i
++] = le32_to_cpu(stat_info
->rd_rtry_wr_ack_cnt
);
6099 tmp_stats
[i
++] = le32_to_cpu(stat_info
->txp_wr_cnt
);
6100 tmp_stats
[i
++] = le32_to_cpu(stat_info
->txd_rd_cnt
);
6101 tmp_stats
[i
++] = le32_to_cpu(stat_info
->txd_wr_cnt
);
6102 tmp_stats
[i
++] = le32_to_cpu(stat_info
->rxd_rd_cnt
);
6103 tmp_stats
[i
++] = le32_to_cpu(stat_info
->rxd_wr_cnt
);
6104 tmp_stats
[i
++] = le32_to_cpu(stat_info
->txf_rd_cnt
);
6105 tmp_stats
[i
++] = le32_to_cpu(stat_info
->rxf_wr_cnt
);
6107 /* Enhanced statistics exist only for Hercules */
6108 if(sp
->device_type
== XFRAME_II_DEVICE
) {
6110 le64_to_cpu(stat_info
->rmac_ttl_1519_4095_frms
);
6112 le64_to_cpu(stat_info
->rmac_ttl_4096_8191_frms
);
6114 le64_to_cpu(stat_info
->rmac_ttl_8192_max_frms
);
6115 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_ttl_gt_max_frms
);
6116 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_osized_alt_frms
);
6117 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_jabber_alt_frms
);
6118 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_gt_max_alt_frms
);
6119 tmp_stats
[i
++] = le64_to_cpu(stat_info
->rmac_vlan_frms
);
6120 tmp_stats
[i
++] = le32_to_cpu(stat_info
->rmac_len_discard
);
6121 tmp_stats
[i
++] = le32_to_cpu(stat_info
->rmac_fcs_discard
);
6122 tmp_stats
[i
++] = le32_to_cpu(stat_info
->rmac_pf_discard
);
6123 tmp_stats
[i
++] = le32_to_cpu(stat_info
->rmac_da_discard
);
6124 tmp_stats
[i
++] = le32_to_cpu(stat_info
->rmac_red_discard
);
6125 tmp_stats
[i
++] = le32_to_cpu(stat_info
->rmac_rts_discard
);
6126 tmp_stats
[i
++] = le32_to_cpu(stat_info
->rmac_ingm_full_discard
);
6127 tmp_stats
[i
++] = le32_to_cpu(stat_info
->link_fault_cnt
);
6131 tmp_stats
[i
++] = stat_info
->sw_stat
.single_ecc_errs
;
6132 tmp_stats
[i
++] = stat_info
->sw_stat
.double_ecc_errs
;
6133 tmp_stats
[i
++] = stat_info
->sw_stat
.parity_err_cnt
;
6134 tmp_stats
[i
++] = stat_info
->sw_stat
.serious_err_cnt
;
6135 tmp_stats
[i
++] = stat_info
->sw_stat
.soft_reset_cnt
;
6136 tmp_stats
[i
++] = stat_info
->sw_stat
.fifo_full_cnt
;
6137 for (k
= 0; k
< MAX_RX_RINGS
; k
++)
6138 tmp_stats
[i
++] = stat_info
->sw_stat
.ring_full_cnt
[k
];
6139 tmp_stats
[i
++] = stat_info
->xpak_stat
.alarm_transceiver_temp_high
;
6140 tmp_stats
[i
++] = stat_info
->xpak_stat
.alarm_transceiver_temp_low
;
6141 tmp_stats
[i
++] = stat_info
->xpak_stat
.alarm_laser_bias_current_high
;
6142 tmp_stats
[i
++] = stat_info
->xpak_stat
.alarm_laser_bias_current_low
;
6143 tmp_stats
[i
++] = stat_info
->xpak_stat
.alarm_laser_output_power_high
;
6144 tmp_stats
[i
++] = stat_info
->xpak_stat
.alarm_laser_output_power_low
;
6145 tmp_stats
[i
++] = stat_info
->xpak_stat
.warn_transceiver_temp_high
;
6146 tmp_stats
[i
++] = stat_info
->xpak_stat
.warn_transceiver_temp_low
;
6147 tmp_stats
[i
++] = stat_info
->xpak_stat
.warn_laser_bias_current_high
;
6148 tmp_stats
[i
++] = stat_info
->xpak_stat
.warn_laser_bias_current_low
;
6149 tmp_stats
[i
++] = stat_info
->xpak_stat
.warn_laser_output_power_high
;
6150 tmp_stats
[i
++] = stat_info
->xpak_stat
.warn_laser_output_power_low
;
6151 tmp_stats
[i
++] = stat_info
->sw_stat
.clubbed_frms_cnt
;
6152 tmp_stats
[i
++] = stat_info
->sw_stat
.sending_both
;
6153 tmp_stats
[i
++] = stat_info
->sw_stat
.outof_sequence_pkts
;
6154 tmp_stats
[i
++] = stat_info
->sw_stat
.flush_max_pkts
;
6155 if (stat_info
->sw_stat
.num_aggregations
) {
6156 u64 tmp
= stat_info
->sw_stat
.sum_avg_pkts_aggregated
;
6159 * Since 64-bit divide does not work on all platforms,
6160 * do repeated subtraction.
6162 while (tmp
>= stat_info
->sw_stat
.num_aggregations
) {
6163 tmp
-= stat_info
->sw_stat
.num_aggregations
;
6166 tmp_stats
[i
++] = count
;
6170 tmp_stats
[i
++] = stat_info
->sw_stat
.mem_alloc_fail_cnt
;
6171 tmp_stats
[i
++] = stat_info
->sw_stat
.pci_map_fail_cnt
;
6172 tmp_stats
[i
++] = stat_info
->sw_stat
.watchdog_timer_cnt
;
6173 tmp_stats
[i
++] = stat_info
->sw_stat
.mem_allocated
;
6174 tmp_stats
[i
++] = stat_info
->sw_stat
.mem_freed
;
6175 tmp_stats
[i
++] = stat_info
->sw_stat
.link_up_cnt
;
6176 tmp_stats
[i
++] = stat_info
->sw_stat
.link_down_cnt
;
6177 tmp_stats
[i
++] = stat_info
->sw_stat
.link_up_time
;
6178 tmp_stats
[i
++] = stat_info
->sw_stat
.link_down_time
;
6180 tmp_stats
[i
++] = stat_info
->sw_stat
.tx_buf_abort_cnt
;
6181 tmp_stats
[i
++] = stat_info
->sw_stat
.tx_desc_abort_cnt
;
6182 tmp_stats
[i
++] = stat_info
->sw_stat
.tx_parity_err_cnt
;
6183 tmp_stats
[i
++] = stat_info
->sw_stat
.tx_link_loss_cnt
;
6184 tmp_stats
[i
++] = stat_info
->sw_stat
.tx_list_proc_err_cnt
;
6186 tmp_stats
[i
++] = stat_info
->sw_stat
.rx_parity_err_cnt
;
6187 tmp_stats
[i
++] = stat_info
->sw_stat
.rx_abort_cnt
;
6188 tmp_stats
[i
++] = stat_info
->sw_stat
.rx_parity_abort_cnt
;
6189 tmp_stats
[i
++] = stat_info
->sw_stat
.rx_rda_fail_cnt
;
6190 tmp_stats
[i
++] = stat_info
->sw_stat
.rx_unkn_prot_cnt
;
6191 tmp_stats
[i
++] = stat_info
->sw_stat
.rx_fcs_err_cnt
;
6192 tmp_stats
[i
++] = stat_info
->sw_stat
.rx_buf_size_err_cnt
;
6193 tmp_stats
[i
++] = stat_info
->sw_stat
.rx_rxd_corrupt_cnt
;
6194 tmp_stats
[i
++] = stat_info
->sw_stat
.rx_unkn_err_cnt
;
6195 tmp_stats
[i
++] = stat_info
->sw_stat
.tda_err_cnt
;
6196 tmp_stats
[i
++] = stat_info
->sw_stat
.pfc_err_cnt
;
6197 tmp_stats
[i
++] = stat_info
->sw_stat
.pcc_err_cnt
;
6198 tmp_stats
[i
++] = stat_info
->sw_stat
.tti_err_cnt
;
6199 tmp_stats
[i
++] = stat_info
->sw_stat
.tpa_err_cnt
;
6200 tmp_stats
[i
++] = stat_info
->sw_stat
.sm_err_cnt
;
6201 tmp_stats
[i
++] = stat_info
->sw_stat
.lso_err_cnt
;
6202 tmp_stats
[i
++] = stat_info
->sw_stat
.mac_tmac_err_cnt
;
6203 tmp_stats
[i
++] = stat_info
->sw_stat
.mac_rmac_err_cnt
;
6204 tmp_stats
[i
++] = stat_info
->sw_stat
.xgxs_txgxs_err_cnt
;
6205 tmp_stats
[i
++] = stat_info
->sw_stat
.xgxs_rxgxs_err_cnt
;
6206 tmp_stats
[i
++] = stat_info
->sw_stat
.rc_err_cnt
;
6207 tmp_stats
[i
++] = stat_info
->sw_stat
.prc_pcix_err_cnt
;
6208 tmp_stats
[i
++] = stat_info
->sw_stat
.rpa_err_cnt
;
6209 tmp_stats
[i
++] = stat_info
->sw_stat
.rda_err_cnt
;
6210 tmp_stats
[i
++] = stat_info
->sw_stat
.rti_err_cnt
;
6211 tmp_stats
[i
++] = stat_info
->sw_stat
.mc_err_cnt
;
6214 static int s2io_ethtool_get_regs_len(struct net_device
*dev
)
6216 return (XENA_REG_SPACE
);
6220 static u32
s2io_ethtool_get_rx_csum(struct net_device
* dev
)
6222 struct s2io_nic
*sp
= dev
->priv
;
6224 return (sp
->rx_csum
);
6227 static int s2io_ethtool_set_rx_csum(struct net_device
*dev
, u32 data
)
6229 struct s2io_nic
*sp
= dev
->priv
;
6239 static int s2io_get_eeprom_len(struct net_device
*dev
)
6241 return (XENA_EEPROM_SPACE
);
6244 static int s2io_ethtool_self_test_count(struct net_device
*dev
)
6246 return (S2IO_TEST_LEN
);
6249 static void s2io_ethtool_get_strings(struct net_device
*dev
,
6250 u32 stringset
, u8
* data
)
6253 struct s2io_nic
*sp
= dev
->priv
;
6255 switch (stringset
) {
6257 memcpy(data
, s2io_gstrings
, S2IO_STRINGS_LEN
);
6260 stat_size
= sizeof(ethtool_xena_stats_keys
);
6261 memcpy(data
, ðtool_xena_stats_keys
,stat_size
);
6262 if(sp
->device_type
== XFRAME_II_DEVICE
) {
6263 memcpy(data
+ stat_size
,
6264 ðtool_enhanced_stats_keys
,
6265 sizeof(ethtool_enhanced_stats_keys
));
6266 stat_size
+= sizeof(ethtool_enhanced_stats_keys
);
6269 memcpy(data
+ stat_size
, ðtool_driver_stats_keys
,
6270 sizeof(ethtool_driver_stats_keys
));
6273 static int s2io_ethtool_get_stats_count(struct net_device
*dev
)
6275 struct s2io_nic
*sp
= dev
->priv
;
6277 switch(sp
->device_type
) {
6278 case XFRAME_I_DEVICE
:
6279 stat_count
= XFRAME_I_STAT_LEN
;
6282 case XFRAME_II_DEVICE
:
6283 stat_count
= XFRAME_II_STAT_LEN
;
6290 static int s2io_ethtool_op_set_tx_csum(struct net_device
*dev
, u32 data
)
6293 dev
->features
|= NETIF_F_IP_CSUM
;
6295 dev
->features
&= ~NETIF_F_IP_CSUM
;
6300 static u32
s2io_ethtool_op_get_tso(struct net_device
*dev
)
6302 return (dev
->features
& NETIF_F_TSO
) != 0;
6304 static int s2io_ethtool_op_set_tso(struct net_device
*dev
, u32 data
)
6307 dev
->features
|= (NETIF_F_TSO
| NETIF_F_TSO6
);
6309 dev
->features
&= ~(NETIF_F_TSO
| NETIF_F_TSO6
);
6314 static const struct ethtool_ops netdev_ethtool_ops
= {
6315 .get_settings
= s2io_ethtool_gset
,
6316 .set_settings
= s2io_ethtool_sset
,
6317 .get_drvinfo
= s2io_ethtool_gdrvinfo
,
6318 .get_regs_len
= s2io_ethtool_get_regs_len
,
6319 .get_regs
= s2io_ethtool_gregs
,
6320 .get_link
= ethtool_op_get_link
,
6321 .get_eeprom_len
= s2io_get_eeprom_len
,
6322 .get_eeprom
= s2io_ethtool_geeprom
,
6323 .set_eeprom
= s2io_ethtool_seeprom
,
6324 .get_ringparam
= s2io_ethtool_gringparam
,
6325 .get_pauseparam
= s2io_ethtool_getpause_data
,
6326 .set_pauseparam
= s2io_ethtool_setpause_data
,
6327 .get_rx_csum
= s2io_ethtool_get_rx_csum
,
6328 .set_rx_csum
= s2io_ethtool_set_rx_csum
,
6329 .set_tx_csum
= s2io_ethtool_op_set_tx_csum
,
6330 .set_sg
= ethtool_op_set_sg
,
6331 .get_tso
= s2io_ethtool_op_get_tso
,
6332 .set_tso
= s2io_ethtool_op_set_tso
,
6333 .set_ufo
= ethtool_op_set_ufo
,
6334 .self_test_count
= s2io_ethtool_self_test_count
,
6335 .self_test
= s2io_ethtool_test
,
6336 .get_strings
= s2io_ethtool_get_strings
,
6337 .phys_id
= s2io_ethtool_idnic
,
6338 .get_stats_count
= s2io_ethtool_get_stats_count
,
6339 .get_ethtool_stats
= s2io_get_ethtool_stats
6343 * s2io_ioctl - Entry point for the Ioctl
6344 * @dev : Device pointer.
6345 * @ifr : An IOCTL specefic structure, that can contain a pointer to
6346 * a proprietary structure used to pass information to the driver.
6347 * @cmd : This is used to distinguish between the different commands that
6348 * can be passed to the IOCTL functions.
6350 * Currently there are no special functionality supported in IOCTL, hence
6351 * function always return EOPNOTSUPPORTED
6354 static int s2io_ioctl(struct net_device
*dev
, struct ifreq
*rq
, int cmd
)
6360 * s2io_change_mtu - entry point to change MTU size for the device.
6361 * @dev : device pointer.
6362 * @new_mtu : the new MTU size for the device.
6363 * Description: A driver entry point to change MTU size for the device.
6364 * Before changing the MTU the device must be stopped.
6366 * 0 on success and an appropriate (-)ve integer as defined in errno.h
6370 static int s2io_change_mtu(struct net_device
*dev
, int new_mtu
)
6372 struct s2io_nic
*sp
= dev
->priv
;
6374 if ((new_mtu
< MIN_MTU
) || (new_mtu
> S2IO_JUMBO_SIZE
)) {
6375 DBG_PRINT(ERR_DBG
, "%s: MTU size is invalid.\n",
6381 if (netif_running(dev
)) {
6383 netif_stop_queue(dev
);
6384 if (s2io_card_up(sp
)) {
6385 DBG_PRINT(ERR_DBG
, "%s: Device bring up failed\n",
6388 if (netif_queue_stopped(dev
))
6389 netif_wake_queue(dev
);
6390 } else { /* Device is down */
6391 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
6392 u64 val64
= new_mtu
;
6394 writeq(vBIT(val64
, 2, 14), &bar0
->rmac_max_pyld_len
);
6401 * s2io_tasklet - Bottom half of the ISR.
6402 * @dev_adr : address of the device structure in dma_addr_t format.
6404 * This is the tasklet or the bottom half of the ISR. This is
6405 * an extension of the ISR which is scheduled by the scheduler to be run
6406 * when the load on the CPU is low. All low priority tasks of the ISR can
6407 * be pushed into the tasklet. For now the tasklet is used only to
6408 * replenish the Rx buffers in the Rx buffer descriptors.
6413 static void s2io_tasklet(unsigned long dev_addr
)
6415 struct net_device
*dev
= (struct net_device
*) dev_addr
;
6416 struct s2io_nic
*sp
= dev
->priv
;
6418 struct mac_info
*mac_control
;
6419 struct config_param
*config
;
6421 mac_control
= &sp
->mac_control
;
6422 config
= &sp
->config
;
6424 if (!TASKLET_IN_USE
) {
6425 for (i
= 0; i
< config
->rx_ring_num
; i
++) {
6426 ret
= fill_rx_buffers(sp
, i
);
6427 if (ret
== -ENOMEM
) {
6428 DBG_PRINT(INFO_DBG
, "%s: Out of ",
6430 DBG_PRINT(INFO_DBG
, "memory in tasklet\n");
6432 } else if (ret
== -EFILL
) {
6434 "%s: Rx Ring %d is full\n",
6439 clear_bit(0, (&sp
->tasklet_status
));
6444 * s2io_set_link - Set the LInk status
6445 * @data: long pointer to device private structue
6446 * Description: Sets the link status for the adapter
6449 static void s2io_set_link(struct work_struct
*work
)
6451 struct s2io_nic
*nic
= container_of(work
, struct s2io_nic
, set_link_task
);
6452 struct net_device
*dev
= nic
->dev
;
6453 struct XENA_dev_config __iomem
*bar0
= nic
->bar0
;
6459 if (!netif_running(dev
))
6462 if (test_and_set_bit(__S2IO_STATE_LINK_TASK
, &(nic
->state
))) {
6463 /* The card is being reset, no point doing anything */
6467 subid
= nic
->pdev
->subsystem_device
;
6468 if (s2io_link_fault_indication(nic
) == MAC_RMAC_ERR_TIMER
) {
6470 * Allow a small delay for the NICs self initiated
6471 * cleanup to complete.
6476 val64
= readq(&bar0
->adapter_status
);
6477 if (LINK_IS_UP(val64
)) {
6478 if (!(readq(&bar0
->adapter_control
) & ADAPTER_CNTL_EN
)) {
6479 if (verify_xena_quiescence(nic
)) {
6480 val64
= readq(&bar0
->adapter_control
);
6481 val64
|= ADAPTER_CNTL_EN
;
6482 writeq(val64
, &bar0
->adapter_control
);
6483 if (CARDS_WITH_FAULTY_LINK_INDICATORS(
6484 nic
->device_type
, subid
)) {
6485 val64
= readq(&bar0
->gpio_control
);
6486 val64
|= GPIO_CTRL_GPIO_0
;
6487 writeq(val64
, &bar0
->gpio_control
);
6488 val64
= readq(&bar0
->gpio_control
);
6490 val64
|= ADAPTER_LED_ON
;
6491 writeq(val64
, &bar0
->adapter_control
);
6493 nic
->device_enabled_once
= TRUE
;
6495 DBG_PRINT(ERR_DBG
, "%s: Error: ", dev
->name
);
6496 DBG_PRINT(ERR_DBG
, "device is not Quiescent\n");
6497 netif_stop_queue(dev
);
6500 val64
= readq(&bar0
->adapter_control
);
6501 val64
|= ADAPTER_LED_ON
;
6502 writeq(val64
, &bar0
->adapter_control
);
6503 s2io_link(nic
, LINK_UP
);
6505 if (CARDS_WITH_FAULTY_LINK_INDICATORS(nic
->device_type
,
6507 val64
= readq(&bar0
->gpio_control
);
6508 val64
&= ~GPIO_CTRL_GPIO_0
;
6509 writeq(val64
, &bar0
->gpio_control
);
6510 val64
= readq(&bar0
->gpio_control
);
6513 val64
= readq(&bar0
->adapter_control
);
6514 val64
= val64
&(~ADAPTER_LED_ON
);
6515 writeq(val64
, &bar0
->adapter_control
);
6516 s2io_link(nic
, LINK_DOWN
);
6518 clear_bit(__S2IO_STATE_LINK_TASK
, &(nic
->state
));
6524 static int set_rxd_buffer_pointer(struct s2io_nic
*sp
, struct RxD_t
*rxdp
,
6526 struct sk_buff
**skb
, u64
*temp0
, u64
*temp1
,
6527 u64
*temp2
, int size
)
6529 struct net_device
*dev
= sp
->dev
;
6530 struct swStat
*stats
= &sp
->mac_control
.stats_info
->sw_stat
;
6532 if ((sp
->rxd_mode
== RXD_MODE_1
) && (rxdp
->Host_Control
== 0)) {
6533 struct RxD1
*rxdp1
= (struct RxD1
*)rxdp
;
6536 DBG_PRINT(INFO_DBG
, "SKB is not NULL\n");
6538 * As Rx frame are not going to be processed,
6539 * using same mapped address for the Rxd
6542 rxdp1
->Buffer0_ptr
= *temp0
;
6544 *skb
= dev_alloc_skb(size
);
6546 DBG_PRINT(INFO_DBG
, "%s: Out of ", dev
->name
);
6547 DBG_PRINT(INFO_DBG
, "memory to allocate ");
6548 DBG_PRINT(INFO_DBG
, "1 buf mode SKBs\n");
6549 sp
->mac_control
.stats_info
->sw_stat
. \
6550 mem_alloc_fail_cnt
++;
6553 sp
->mac_control
.stats_info
->sw_stat
.mem_allocated
6554 += (*skb
)->truesize
;
6555 /* storing the mapped addr in a temp variable
6556 * such it will be used for next rxd whose
6557 * Host Control is NULL
6559 rxdp1
->Buffer0_ptr
= *temp0
=
6560 pci_map_single( sp
->pdev
, (*skb
)->data
,
6561 size
- NET_IP_ALIGN
,
6562 PCI_DMA_FROMDEVICE
);
6563 if( (rxdp1
->Buffer0_ptr
== 0) ||
6564 (rxdp1
->Buffer0_ptr
== DMA_ERROR_CODE
)) {
6565 goto memalloc_failed
;
6567 rxdp
->Host_Control
= (unsigned long) (*skb
);
6569 } else if ((sp
->rxd_mode
== RXD_MODE_3B
) && (rxdp
->Host_Control
== 0)) {
6570 struct RxD3
*rxdp3
= (struct RxD3
*)rxdp
;
6571 /* Two buffer Mode */
6573 rxdp3
->Buffer2_ptr
= *temp2
;
6574 rxdp3
->Buffer0_ptr
= *temp0
;
6575 rxdp3
->Buffer1_ptr
= *temp1
;
6577 *skb
= dev_alloc_skb(size
);
6579 DBG_PRINT(INFO_DBG
, "%s: Out of ", dev
->name
);
6580 DBG_PRINT(INFO_DBG
, "memory to allocate ");
6581 DBG_PRINT(INFO_DBG
, "2 buf mode SKBs\n");
6582 sp
->mac_control
.stats_info
->sw_stat
. \
6583 mem_alloc_fail_cnt
++;
6586 sp
->mac_control
.stats_info
->sw_stat
.mem_allocated
6587 += (*skb
)->truesize
;
6588 rxdp3
->Buffer2_ptr
= *temp2
=
6589 pci_map_single(sp
->pdev
, (*skb
)->data
,
6591 PCI_DMA_FROMDEVICE
);
6592 if( (rxdp3
->Buffer2_ptr
== 0) ||
6593 (rxdp3
->Buffer2_ptr
== DMA_ERROR_CODE
)) {
6594 goto memalloc_failed
;
6596 rxdp3
->Buffer0_ptr
= *temp0
=
6597 pci_map_single( sp
->pdev
, ba
->ba_0
, BUF0_LEN
,
6598 PCI_DMA_FROMDEVICE
);
6599 if( (rxdp3
->Buffer0_ptr
== 0) ||
6600 (rxdp3
->Buffer0_ptr
== DMA_ERROR_CODE
)) {
6601 pci_unmap_single (sp
->pdev
,
6602 (dma_addr_t
)rxdp3
->Buffer2_ptr
,
6603 dev
->mtu
+ 4, PCI_DMA_FROMDEVICE
);
6604 goto memalloc_failed
;
6606 rxdp
->Host_Control
= (unsigned long) (*skb
);
6608 /* Buffer-1 will be dummy buffer not used */
6609 rxdp3
->Buffer1_ptr
= *temp1
=
6610 pci_map_single(sp
->pdev
, ba
->ba_1
, BUF1_LEN
,
6611 PCI_DMA_FROMDEVICE
);
6612 if( (rxdp3
->Buffer1_ptr
== 0) ||
6613 (rxdp3
->Buffer1_ptr
== DMA_ERROR_CODE
)) {
6614 pci_unmap_single (sp
->pdev
,
6615 (dma_addr_t
)rxdp3
->Buffer0_ptr
,
6616 BUF0_LEN
, PCI_DMA_FROMDEVICE
);
6617 pci_unmap_single (sp
->pdev
,
6618 (dma_addr_t
)rxdp3
->Buffer2_ptr
,
6619 dev
->mtu
+ 4, PCI_DMA_FROMDEVICE
);
6620 goto memalloc_failed
;
6626 stats
->pci_map_fail_cnt
++;
6627 stats
->mem_freed
+= (*skb
)->truesize
;
6628 dev_kfree_skb(*skb
);
6632 static void set_rxd_buffer_size(struct s2io_nic
*sp
, struct RxD_t
*rxdp
,
6635 struct net_device
*dev
= sp
->dev
;
6636 if (sp
->rxd_mode
== RXD_MODE_1
) {
6637 rxdp
->Control_2
= SET_BUFFER0_SIZE_1( size
- NET_IP_ALIGN
);
6638 } else if (sp
->rxd_mode
== RXD_MODE_3B
) {
6639 rxdp
->Control_2
= SET_BUFFER0_SIZE_3(BUF0_LEN
);
6640 rxdp
->Control_2
|= SET_BUFFER1_SIZE_3(1);
6641 rxdp
->Control_2
|= SET_BUFFER2_SIZE_3( dev
->mtu
+ 4);
6645 static int rxd_owner_bit_reset(struct s2io_nic
*sp
)
6647 int i
, j
, k
, blk_cnt
= 0, size
;
6648 struct mac_info
* mac_control
= &sp
->mac_control
;
6649 struct config_param
*config
= &sp
->config
;
6650 struct net_device
*dev
= sp
->dev
;
6651 struct RxD_t
*rxdp
= NULL
;
6652 struct sk_buff
*skb
= NULL
;
6653 struct buffAdd
*ba
= NULL
;
6654 u64 temp0_64
= 0, temp1_64
= 0, temp2_64
= 0;
6656 /* Calculate the size based on ring mode */
6657 size
= dev
->mtu
+ HEADER_ETHERNET_II_802_3_SIZE
+
6658 HEADER_802_2_SIZE
+ HEADER_SNAP_SIZE
;
6659 if (sp
->rxd_mode
== RXD_MODE_1
)
6660 size
+= NET_IP_ALIGN
;
6661 else if (sp
->rxd_mode
== RXD_MODE_3B
)
6662 size
= dev
->mtu
+ ALIGN_SIZE
+ BUF0_LEN
+ 4;
6664 for (i
= 0; i
< config
->rx_ring_num
; i
++) {
6665 blk_cnt
= config
->rx_cfg
[i
].num_rxd
/
6666 (rxd_count
[sp
->rxd_mode
] +1);
6668 for (j
= 0; j
< blk_cnt
; j
++) {
6669 for (k
= 0; k
< rxd_count
[sp
->rxd_mode
]; k
++) {
6670 rxdp
= mac_control
->rings
[i
].
6671 rx_blocks
[j
].rxds
[k
].virt_addr
;
6672 if(sp
->rxd_mode
== RXD_MODE_3B
)
6673 ba
= &mac_control
->rings
[i
].ba
[j
][k
];
6674 if (set_rxd_buffer_pointer(sp
, rxdp
, ba
,
6675 &skb
,(u64
*)&temp0_64
,
6682 set_rxd_buffer_size(sp
, rxdp
, size
);
6684 /* flip the Ownership bit to Hardware */
6685 rxdp
->Control_1
|= RXD_OWN_XENA
;
6693 static int s2io_add_isr(struct s2io_nic
* sp
)
6696 struct net_device
*dev
= sp
->dev
;
6699 if (sp
->config
.intr_type
== MSI_X
)
6700 ret
= s2io_enable_msi_x(sp
);
6702 DBG_PRINT(ERR_DBG
, "%s: Defaulting to INTA\n", dev
->name
);
6703 sp
->config
.intr_type
= INTA
;
6706 /* Store the values of the MSIX table in the struct s2io_nic structure */
6707 store_xmsi_data(sp
);
6709 /* After proper initialization of H/W, register ISR */
6710 if (sp
->config
.intr_type
== MSI_X
) {
6711 int i
, msix_tx_cnt
=0,msix_rx_cnt
=0;
6713 for (i
=1; (sp
->s2io_entries
[i
].in_use
== MSIX_FLG
); i
++) {
6714 if (sp
->s2io_entries
[i
].type
== MSIX_FIFO_TYPE
) {
6715 sprintf(sp
->desc
[i
], "%s:MSI-X-%d-TX",
6717 err
= request_irq(sp
->entries
[i
].vector
,
6718 s2io_msix_fifo_handle
, 0, sp
->desc
[i
],
6719 sp
->s2io_entries
[i
].arg
);
6720 /* If either data or addr is zero print it */
6721 if(!(sp
->msix_info
[i
].addr
&&
6722 sp
->msix_info
[i
].data
)) {
6723 DBG_PRINT(ERR_DBG
, "%s @ Addr:0x%llx"
6724 "Data:0x%lx\n",sp
->desc
[i
],
6725 (unsigned long long)
6726 sp
->msix_info
[i
].addr
,
6728 ntohl(sp
->msix_info
[i
].data
));
6733 sprintf(sp
->desc
[i
], "%s:MSI-X-%d-RX",
6735 err
= request_irq(sp
->entries
[i
].vector
,
6736 s2io_msix_ring_handle
, 0, sp
->desc
[i
],
6737 sp
->s2io_entries
[i
].arg
);
6738 /* If either data or addr is zero print it */
6739 if(!(sp
->msix_info
[i
].addr
&&
6740 sp
->msix_info
[i
].data
)) {
6741 DBG_PRINT(ERR_DBG
, "%s @ Addr:0x%llx"
6742 "Data:0x%lx\n",sp
->desc
[i
],
6743 (unsigned long long)
6744 sp
->msix_info
[i
].addr
,
6746 ntohl(sp
->msix_info
[i
].data
));
6752 DBG_PRINT(ERR_DBG
,"%s:MSI-X-%d registration "
6753 "failed\n", dev
->name
, i
);
6754 DBG_PRINT(ERR_DBG
, "Returned: %d\n", err
);
6757 sp
->s2io_entries
[i
].in_use
= MSIX_REGISTERED_SUCCESS
;
6759 printk("MSI-X-TX %d entries enabled\n",msix_tx_cnt
);
6760 printk("MSI-X-RX %d entries enabled\n",msix_rx_cnt
);
6762 if (sp
->config
.intr_type
== INTA
) {
6763 err
= request_irq((int) sp
->pdev
->irq
, s2io_isr
, IRQF_SHARED
,
6766 DBG_PRINT(ERR_DBG
, "%s: ISR registration failed\n",
6773 static void s2io_rem_isr(struct s2io_nic
* sp
)
6775 struct net_device
*dev
= sp
->dev
;
6776 struct swStat
*stats
= &sp
->mac_control
.stats_info
->sw_stat
;
6778 if (sp
->config
.intr_type
== MSI_X
) {
6782 for (i
=1; (sp
->s2io_entries
[i
].in_use
==
6783 MSIX_REGISTERED_SUCCESS
); i
++) {
6784 int vector
= sp
->entries
[i
].vector
;
6785 void *arg
= sp
->s2io_entries
[i
].arg
;
6787 synchronize_irq(vector
);
6788 free_irq(vector
, arg
);
6793 (MAX_REQUESTED_MSI_X
* sizeof(struct msix_entry
));
6794 kfree(sp
->s2io_entries
);
6796 (MAX_REQUESTED_MSI_X
* sizeof(struct s2io_msix_entry
));
6798 sp
->s2io_entries
= NULL
;
6800 pci_read_config_word(sp
->pdev
, 0x42, &msi_control
);
6801 msi_control
&= 0xFFFE; /* Disable MSI */
6802 pci_write_config_word(sp
->pdev
, 0x42, msi_control
);
6804 pci_disable_msix(sp
->pdev
);
6806 synchronize_irq(sp
->pdev
->irq
);
6807 free_irq(sp
->pdev
->irq
, dev
);
6811 static void do_s2io_card_down(struct s2io_nic
* sp
, int do_io
)
6814 struct XENA_dev_config __iomem
*bar0
= sp
->bar0
;
6815 unsigned long flags
;
6816 register u64 val64
= 0;
6818 del_timer_sync(&sp
->alarm_timer
);
6819 /* If s2io_set_link task is executing, wait till it completes. */
6820 while (test_and_set_bit(__S2IO_STATE_LINK_TASK
, &(sp
->state
))) {
6823 clear_bit(__S2IO_STATE_CARD_UP
, &sp
->state
);
6825 /* disable Tx and Rx traffic on the NIC */
6832 tasklet_kill(&sp
->task
);
6834 /* Check if the device is Quiescent and then Reset the NIC */
6836 /* As per the HW requirement we need to replenish the
6837 * receive buffer to avoid the ring bump. Since there is
6838 * no intention of processing the Rx frame at this pointwe are
6839 * just settting the ownership bit of rxd in Each Rx
6840 * ring to HW and set the appropriate buffer size
6841 * based on the ring mode
6843 rxd_owner_bit_reset(sp
);
6845 val64
= readq(&bar0
->adapter_status
);
6846 if (verify_xena_quiescence(sp
)) {
6847 if(verify_pcc_quiescent(sp
, sp
->device_enabled_once
))
6855 "s2io_close:Device not Quiescent ");
6856 DBG_PRINT(ERR_DBG
, "adaper status reads 0x%llx\n",
6857 (unsigned long long) val64
);
6864 spin_lock_irqsave(&sp
->tx_lock
, flags
);
6865 /* Free all Tx buffers */
6866 free_tx_buffers(sp
);
6867 spin_unlock_irqrestore(&sp
->tx_lock
, flags
);
6869 /* Free all Rx buffers */
6870 spin_lock_irqsave(&sp
->rx_lock
, flags
);
6871 free_rx_buffers(sp
);
6872 spin_unlock_irqrestore(&sp
->rx_lock
, flags
);
6874 clear_bit(__S2IO_STATE_LINK_TASK
, &(sp
->state
));
6877 static void s2io_card_down(struct s2io_nic
* sp
)
6879 do_s2io_card_down(sp
, 1);
6882 static int s2io_card_up(struct s2io_nic
* sp
)
6885 struct mac_info
*mac_control
;
6886 struct config_param
*config
;
6887 struct net_device
*dev
= (struct net_device
*) sp
->dev
;
6890 /* Initialize the H/W I/O registers */
6891 if (init_nic(sp
) != 0) {
6892 DBG_PRINT(ERR_DBG
, "%s: H/W initialization failed\n",
6899 * Initializing the Rx buffers. For now we are considering only 1
6900 * Rx ring and initializing buffers into 30 Rx blocks
6902 mac_control
= &sp
->mac_control
;
6903 config
= &sp
->config
;
6905 for (i
= 0; i
< config
->rx_ring_num
; i
++) {
6906 if ((ret
= fill_rx_buffers(sp
, i
))) {
6907 DBG_PRINT(ERR_DBG
, "%s: Out of memory in Open\n",
6910 free_rx_buffers(sp
);
6913 DBG_PRINT(INFO_DBG
, "Buf in ring:%d is %d:\n", i
,
6914 atomic_read(&sp
->rx_bufs_left
[i
]));
6916 /* Maintain the state prior to the open */
6917 if (sp
->promisc_flg
)
6918 sp
->promisc_flg
= 0;
6919 if (sp
->m_cast_flg
) {
6921 sp
->all_multi_pos
= 0;
6924 /* Setting its receive mode */
6925 s2io_set_multicast(dev
);
6928 /* Initialize max aggregatable pkts per session based on MTU */
6929 sp
->lro_max_aggr_per_sess
= ((1<<16) - 1) / dev
->mtu
;
6930 /* Check if we can use(if specified) user provided value */
6931 if (lro_max_pkts
< sp
->lro_max_aggr_per_sess
)
6932 sp
->lro_max_aggr_per_sess
= lro_max_pkts
;
6935 /* Enable Rx Traffic and interrupts on the NIC */
6936 if (start_nic(sp
)) {
6937 DBG_PRINT(ERR_DBG
, "%s: Starting NIC failed\n", dev
->name
);
6939 free_rx_buffers(sp
);
6943 /* Add interrupt service routine */
6944 if (s2io_add_isr(sp
) != 0) {
6945 if (sp
->config
.intr_type
== MSI_X
)
6948 free_rx_buffers(sp
);
6952 S2IO_TIMER_CONF(sp
->alarm_timer
, s2io_alarm_handle
, sp
, (HZ
/2));
6954 /* Enable tasklet for the device */
6955 tasklet_init(&sp
->task
, s2io_tasklet
, (unsigned long) dev
);
6957 /* Enable select interrupts */
6958 en_dis_err_alarms(sp
, ENA_ALL_INTRS
, ENABLE_INTRS
);
6959 if (sp
->config
.intr_type
!= INTA
)
6960 en_dis_able_nic_intrs(sp
, ENA_ALL_INTRS
, DISABLE_INTRS
);
6962 interruptible
= TX_TRAFFIC_INTR
| RX_TRAFFIC_INTR
;
6963 interruptible
|= TX_PIC_INTR
;
6964 en_dis_able_nic_intrs(sp
, interruptible
, ENABLE_INTRS
);
6967 set_bit(__S2IO_STATE_CARD_UP
, &sp
->state
);
6972 * s2io_restart_nic - Resets the NIC.
6973 * @data : long pointer to the device private structure
6975 * This function is scheduled to be run by the s2io_tx_watchdog
6976 * function after 0.5 secs to reset the NIC. The idea is to reduce
6977 * the run time of the watch dog routine which is run holding a
6981 static void s2io_restart_nic(struct work_struct
*work
)
6983 struct s2io_nic
*sp
= container_of(work
, struct s2io_nic
, rst_timer_task
);
6984 struct net_device
*dev
= sp
->dev
;
6988 if (!netif_running(dev
))
6992 if (s2io_card_up(sp
)) {
6993 DBG_PRINT(ERR_DBG
, "%s: Device bring up failed\n",
6996 netif_wake_queue(dev
);
6997 DBG_PRINT(ERR_DBG
, "%s: was reset by Tx watchdog timer\n",
7004 * s2io_tx_watchdog - Watchdog for transmit side.
7005 * @dev : Pointer to net device structure
7007 * This function is triggered if the Tx Queue is stopped
7008 * for a pre-defined amount of time when the Interface is still up.
7009 * If the Interface is jammed in such a situation, the hardware is
7010 * reset (by s2io_close) and restarted again (by s2io_open) to
7011 * overcome any problem that might have been caused in the hardware.
7016 static void s2io_tx_watchdog(struct net_device
*dev
)
7018 struct s2io_nic
*sp
= dev
->priv
;
7020 if (netif_carrier_ok(dev
)) {
7021 sp
->mac_control
.stats_info
->sw_stat
.watchdog_timer_cnt
++;
7022 schedule_work(&sp
->rst_timer_task
);
7023 sp
->mac_control
.stats_info
->sw_stat
.soft_reset_cnt
++;
7028 * rx_osm_handler - To perform some OS related operations on SKB.
7029 * @sp: private member of the device structure,pointer to s2io_nic structure.
7030 * @skb : the socket buffer pointer.
7031 * @len : length of the packet
7032 * @cksum : FCS checksum of the frame.
7033 * @ring_no : the ring from which this RxD was extracted.
7035 * This function is called by the Rx interrupt serivce routine to perform
7036 * some OS related operations on the SKB before passing it to the upper
7037 * layers. It mainly checks if the checksum is OK, if so adds it to the
7038 * SKBs cksum variable, increments the Rx packet count and passes the SKB
7039 * to the upper layer. If the checksum is wrong, it increments the Rx
7040 * packet error count, frees the SKB and returns error.
7042 * SUCCESS on success and -1 on failure.
7044 static int rx_osm_handler(struct ring_info
*ring_data
, struct RxD_t
* rxdp
)
7046 struct s2io_nic
*sp
= ring_data
->nic
;
7047 struct net_device
*dev
= (struct net_device
*) sp
->dev
;
7048 struct sk_buff
*skb
= (struct sk_buff
*)
7049 ((unsigned long) rxdp
->Host_Control
);
7050 int ring_no
= ring_data
->ring_no
;
7051 u16 l3_csum
, l4_csum
;
7052 unsigned long long err
= rxdp
->Control_1
& RXD_T_CODE
;
7059 /* Check for parity error */
7061 sp
->mac_control
.stats_info
->sw_stat
.parity_err_cnt
++;
7063 err_mask
= err
>> 48;
7066 sp
->mac_control
.stats_info
->sw_stat
.
7067 rx_parity_err_cnt
++;
7071 sp
->mac_control
.stats_info
->sw_stat
.
7076 sp
->mac_control
.stats_info
->sw_stat
.
7077 rx_parity_abort_cnt
++;
7081 sp
->mac_control
.stats_info
->sw_stat
.
7086 sp
->mac_control
.stats_info
->sw_stat
.
7091 sp
->mac_control
.stats_info
->sw_stat
.
7096 sp
->mac_control
.stats_info
->sw_stat
.
7097 rx_buf_size_err_cnt
++;
7101 sp
->mac_control
.stats_info
->sw_stat
.
7102 rx_rxd_corrupt_cnt
++;
7106 sp
->mac_control
.stats_info
->sw_stat
.
7111 * Drop the packet if bad transfer code. Exception being
7112 * 0x5, which could be due to unsupported IPv6 extension header.
7113 * In this case, we let stack handle the packet.
7114 * Note that in this case, since checksum will be incorrect,
7115 * stack will validate the same.
7117 if (err_mask
!= 0x5) {
7118 DBG_PRINT(ERR_DBG
, "%s: Rx error Value: 0x%x\n",
7119 dev
->name
, err_mask
);
7120 sp
->stats
.rx_crc_errors
++;
7121 sp
->mac_control
.stats_info
->sw_stat
.mem_freed
7124 atomic_dec(&sp
->rx_bufs_left
[ring_no
]);
7125 rxdp
->Host_Control
= 0;
7130 /* Updating statistics */
7131 sp
->stats
.rx_packets
++;
7132 rxdp
->Host_Control
= 0;
7133 if (sp
->rxd_mode
== RXD_MODE_1
) {
7134 int len
= RXD_GET_BUFFER0_SIZE_1(rxdp
->Control_2
);
7136 sp
->stats
.rx_bytes
+= len
;
7139 } else if (sp
->rxd_mode
== RXD_MODE_3B
) {
7140 int get_block
= ring_data
->rx_curr_get_info
.block_index
;
7141 int get_off
= ring_data
->rx_curr_get_info
.offset
;
7142 int buf0_len
= RXD_GET_BUFFER0_SIZE_3(rxdp
->Control_2
);
7143 int buf2_len
= RXD_GET_BUFFER2_SIZE_3(rxdp
->Control_2
);
7144 unsigned char *buff
= skb_push(skb
, buf0_len
);
7146 struct buffAdd
*ba
= &ring_data
->ba
[get_block
][get_off
];
7147 sp
->stats
.rx_bytes
+= buf0_len
+ buf2_len
;
7148 memcpy(buff
, ba
->ba_0
, buf0_len
);
7149 skb_put(skb
, buf2_len
);
7152 if ((rxdp
->Control_1
& TCP_OR_UDP_FRAME
) && ((!sp
->lro
) ||
7153 (sp
->lro
&& (!(rxdp
->Control_1
& RXD_FRAME_IP_FRAG
)))) &&
7155 l3_csum
= RXD_GET_L3_CKSUM(rxdp
->Control_1
);
7156 l4_csum
= RXD_GET_L4_CKSUM(rxdp
->Control_1
);
7157 if ((l3_csum
== L3_CKSUM_OK
) && (l4_csum
== L4_CKSUM_OK
)) {
7159 * NIC verifies if the Checksum of the received
7160 * frame is Ok or not and accordingly returns
7161 * a flag in the RxD.
7163 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
7169 ret
= s2io_club_tcp_session(skb
->data
, &tcp
,
7170 &tcp_len
, &lro
, rxdp
, sp
);
7172 case 3: /* Begin anew */
7175 case 1: /* Aggregate */
7177 lro_append_pkt(sp
, lro
,
7181 case 4: /* Flush session */
7183 lro_append_pkt(sp
, lro
,
7185 queue_rx_frame(lro
->parent
);
7186 clear_lro_session(lro
);
7187 sp
->mac_control
.stats_info
->
7188 sw_stat
.flush_max_pkts
++;
7191 case 2: /* Flush both */
7192 lro
->parent
->data_len
=
7194 sp
->mac_control
.stats_info
->
7195 sw_stat
.sending_both
++;
7196 queue_rx_frame(lro
->parent
);
7197 clear_lro_session(lro
);
7199 case 0: /* sessions exceeded */
7200 case -1: /* non-TCP or not
7204 * First pkt in session not
7205 * L3/L4 aggregatable
7210 "%s: Samadhana!!\n",
7217 * Packet with erroneous checksum, let the
7218 * upper layers deal with it.
7220 skb
->ip_summed
= CHECKSUM_NONE
;
7223 skb
->ip_summed
= CHECKSUM_NONE
;
7225 sp
->mac_control
.stats_info
->sw_stat
.mem_freed
+= skb
->truesize
;
7227 skb
->protocol
= eth_type_trans(skb
, dev
);
7228 if ((sp
->vlgrp
&& RXD_GET_VLAN_TAG(rxdp
->Control_2
) &&
7230 /* Queueing the vlan frame to the upper layer */
7232 vlan_hwaccel_receive_skb(skb
, sp
->vlgrp
,
7233 RXD_GET_VLAN_TAG(rxdp
->Control_2
));
7235 vlan_hwaccel_rx(skb
, sp
->vlgrp
,
7236 RXD_GET_VLAN_TAG(rxdp
->Control_2
));
7239 netif_receive_skb(skb
);
7245 queue_rx_frame(skb
);
7247 dev
->last_rx
= jiffies
;
7249 atomic_dec(&sp
->rx_bufs_left
[ring_no
]);
7254 * s2io_link - stops/starts the Tx queue.
7255 * @sp : private member of the device structure, which is a pointer to the
7256 * s2io_nic structure.
7257 * @link : inidicates whether link is UP/DOWN.
7259 * This function stops/starts the Tx queue depending on whether the link
7260 * status of the NIC is is down or up. This is called by the Alarm
7261 * interrupt handler whenever a link change interrupt comes up.
7266 static void s2io_link(struct s2io_nic
* sp
, int link
)
7268 struct net_device
*dev
= (struct net_device
*) sp
->dev
;
7270 if (link
!= sp
->last_link_state
) {
7271 if (link
== LINK_DOWN
) {
7272 DBG_PRINT(ERR_DBG
, "%s: Link down\n", dev
->name
);
7273 netif_carrier_off(dev
);
7274 if(sp
->mac_control
.stats_info
->sw_stat
.link_up_cnt
)
7275 sp
->mac_control
.stats_info
->sw_stat
.link_up_time
=
7276 jiffies
- sp
->start_time
;
7277 sp
->mac_control
.stats_info
->sw_stat
.link_down_cnt
++;
7279 DBG_PRINT(ERR_DBG
, "%s: Link Up\n", dev
->name
);
7280 if (sp
->mac_control
.stats_info
->sw_stat
.link_down_cnt
)
7281 sp
->mac_control
.stats_info
->sw_stat
.link_down_time
=
7282 jiffies
- sp
->start_time
;
7283 sp
->mac_control
.stats_info
->sw_stat
.link_up_cnt
++;
7284 netif_carrier_on(dev
);
7287 sp
->last_link_state
= link
;
7288 sp
->start_time
= jiffies
;
7292 * s2io_init_pci -Initialization of PCI and PCI-X configuration registers .
7293 * @sp : private member of the device structure, which is a pointer to the
7294 * s2io_nic structure.
7296 * This function initializes a few of the PCI and PCI-X configuration registers
7297 * with recommended values.
7302 static void s2io_init_pci(struct s2io_nic
* sp
)
7304 u16 pci_cmd
= 0, pcix_cmd
= 0;
7306 /* Enable Data Parity Error Recovery in PCI-X command register. */
7307 pci_read_config_word(sp
->pdev
, PCIX_COMMAND_REGISTER
,
7309 pci_write_config_word(sp
->pdev
, PCIX_COMMAND_REGISTER
,
7311 pci_read_config_word(sp
->pdev
, PCIX_COMMAND_REGISTER
,
7314 /* Set the PErr Response bit in PCI command register. */
7315 pci_read_config_word(sp
->pdev
, PCI_COMMAND
, &pci_cmd
);
7316 pci_write_config_word(sp
->pdev
, PCI_COMMAND
,
7317 (pci_cmd
| PCI_COMMAND_PARITY
));
7318 pci_read_config_word(sp
->pdev
, PCI_COMMAND
, &pci_cmd
);
7321 static int s2io_verify_parm(struct pci_dev
*pdev
, u8
*dev_intr_type
)
7323 if ( tx_fifo_num
> 8) {
7324 DBG_PRINT(ERR_DBG
, "s2io: Requested number of Tx fifos not "
7326 DBG_PRINT(ERR_DBG
, "s2io: Default to 8 Tx fifos\n");
7329 if ( rx_ring_num
> 8) {
7330 DBG_PRINT(ERR_DBG
, "s2io: Requested number of Rx rings not "
7332 DBG_PRINT(ERR_DBG
, "s2io: Default to 8 Rx rings\n");
7335 if (*dev_intr_type
!= INTA
)
7338 if ((*dev_intr_type
!= INTA
) && (*dev_intr_type
!= MSI_X
)) {
7339 DBG_PRINT(ERR_DBG
, "s2io: Wrong intr_type requested. "
7340 "Defaulting to INTA\n");
7341 *dev_intr_type
= INTA
;
7344 if ((*dev_intr_type
== MSI_X
) &&
7345 ((pdev
->device
!= PCI_DEVICE_ID_HERC_WIN
) &&
7346 (pdev
->device
!= PCI_DEVICE_ID_HERC_UNI
))) {
7347 DBG_PRINT(ERR_DBG
, "s2io: Xframe I does not support MSI_X. "
7348 "Defaulting to INTA\n");
7349 *dev_intr_type
= INTA
;
7352 if ((rx_ring_mode
!= 1) && (rx_ring_mode
!= 2)) {
7353 DBG_PRINT(ERR_DBG
, "s2io: Requested ring mode not supported\n");
7354 DBG_PRINT(ERR_DBG
, "s2io: Defaulting to 1-buffer mode\n");
7361 * rts_ds_steer - Receive traffic steering based on IPv4 or IPv6 TOS
7362 * or Traffic class respectively.
7363 * @nic: device peivate variable
7364 * Description: The function configures the receive steering to
7365 * desired receive ring.
7366 * Return Value: SUCCESS on success and
7367 * '-1' on failure (endian settings incorrect).
7369 static int rts_ds_steer(struct s2io_nic
*nic
, u8 ds_codepoint
, u8 ring
)
7371 struct XENA_dev_config __iomem
*bar0
= nic
->bar0
;
7372 register u64 val64
= 0;
7374 if (ds_codepoint
> 63)
7377 val64
= RTS_DS_MEM_DATA(ring
);
7378 writeq(val64
, &bar0
->rts_ds_mem_data
);
7380 val64
= RTS_DS_MEM_CTRL_WE
|
7381 RTS_DS_MEM_CTRL_STROBE_NEW_CMD
|
7382 RTS_DS_MEM_CTRL_OFFSET(ds_codepoint
);
7384 writeq(val64
, &bar0
->rts_ds_mem_ctrl
);
7386 return wait_for_cmd_complete(&bar0
->rts_ds_mem_ctrl
,
7387 RTS_DS_MEM_CTRL_STROBE_CMD_BEING_EXECUTED
,
7392 * s2io_init_nic - Initialization of the adapter .
7393 * @pdev : structure containing the PCI related information of the device.
7394 * @pre: List of PCI devices supported by the driver listed in s2io_tbl.
7396 * The function initializes an adapter identified by the pci_dec structure.
7397 * All OS related initialization including memory and device structure and
7398 * initlaization of the device private variable is done. Also the swapper
7399 * control register is initialized to enable read and write into the I/O
7400 * registers of the device.
7402 * returns 0 on success and negative on failure.
7405 static int __devinit
7406 s2io_init_nic(struct pci_dev
*pdev
, const struct pci_device_id
*pre
)
7408 struct s2io_nic
*sp
;
7409 struct net_device
*dev
;
7411 int dma_flag
= FALSE
;
7412 u32 mac_up
, mac_down
;
7413 u64 val64
= 0, tmp64
= 0;
7414 struct XENA_dev_config __iomem
*bar0
= NULL
;
7416 struct mac_info
*mac_control
;
7417 struct config_param
*config
;
7419 u8 dev_intr_type
= intr_type
;
7420 DECLARE_MAC_BUF(mac
);
7422 if ((ret
= s2io_verify_parm(pdev
, &dev_intr_type
)))
7425 if ((ret
= pci_enable_device(pdev
))) {
7427 "s2io_init_nic: pci_enable_device failed\n");
7431 if (!pci_set_dma_mask(pdev
, DMA_64BIT_MASK
)) {
7432 DBG_PRINT(INIT_DBG
, "s2io_init_nic: Using 64bit DMA\n");
7434 if (pci_set_consistent_dma_mask
7435 (pdev
, DMA_64BIT_MASK
)) {
7437 "Unable to obtain 64bit DMA for \
7438 consistent allocations\n");
7439 pci_disable_device(pdev
);
7442 } else if (!pci_set_dma_mask(pdev
, DMA_32BIT_MASK
)) {
7443 DBG_PRINT(INIT_DBG
, "s2io_init_nic: Using 32bit DMA\n");
7445 pci_disable_device(pdev
);
7448 if ((ret
= pci_request_regions(pdev
, s2io_driver_name
))) {
7449 DBG_PRINT(ERR_DBG
, "%s: Request Regions failed - %x \n", __FUNCTION__
, ret
);
7450 pci_disable_device(pdev
);
7454 dev
= alloc_etherdev(sizeof(struct s2io_nic
));
7456 DBG_PRINT(ERR_DBG
, "Device allocation failed\n");
7457 pci_disable_device(pdev
);
7458 pci_release_regions(pdev
);
7462 pci_set_master(pdev
);
7463 pci_set_drvdata(pdev
, dev
);
7464 SET_NETDEV_DEV(dev
, &pdev
->dev
);
7466 /* Private member variable initialized to s2io NIC structure */
7468 memset(sp
, 0, sizeof(struct s2io_nic
));
7471 sp
->high_dma_flag
= dma_flag
;
7472 sp
->device_enabled_once
= FALSE
;
7473 if (rx_ring_mode
== 1)
7474 sp
->rxd_mode
= RXD_MODE_1
;
7475 if (rx_ring_mode
== 2)
7476 sp
->rxd_mode
= RXD_MODE_3B
;
7478 sp
->config
.intr_type
= dev_intr_type
;
7480 if ((pdev
->device
== PCI_DEVICE_ID_HERC_WIN
) ||
7481 (pdev
->device
== PCI_DEVICE_ID_HERC_UNI
))
7482 sp
->device_type
= XFRAME_II_DEVICE
;
7484 sp
->device_type
= XFRAME_I_DEVICE
;
7488 /* Initialize some PCI/PCI-X fields of the NIC. */
7492 * Setting the device configuration parameters.
7493 * Most of these parameters can be specified by the user during
7494 * module insertion as they are module loadable parameters. If
7495 * these parameters are not not specified during load time, they
7496 * are initialized with default values.
7498 mac_control
= &sp
->mac_control
;
7499 config
= &sp
->config
;
7501 config
->napi
= napi
;
7503 /* Tx side parameters. */
7504 config
->tx_fifo_num
= tx_fifo_num
;
7505 for (i
= 0; i
< MAX_TX_FIFOS
; i
++) {
7506 config
->tx_cfg
[i
].fifo_len
= tx_fifo_len
[i
];
7507 config
->tx_cfg
[i
].fifo_priority
= i
;
7510 /* mapping the QoS priority to the configured fifos */
7511 for (i
= 0; i
< MAX_TX_FIFOS
; i
++)
7512 config
->fifo_mapping
[i
] = fifo_map
[config
->tx_fifo_num
][i
];
7514 config
->tx_intr_type
= TXD_INT_TYPE_UTILZ
;
7515 for (i
= 0; i
< config
->tx_fifo_num
; i
++) {
7516 config
->tx_cfg
[i
].f_no_snoop
=
7517 (NO_SNOOP_TXD
| NO_SNOOP_TXD_BUFFER
);
7518 if (config
->tx_cfg
[i
].fifo_len
< 65) {
7519 config
->tx_intr_type
= TXD_INT_TYPE_PER_LIST
;
7523 /* + 2 because one Txd for skb->data and one Txd for UFO */
7524 config
->max_txds
= MAX_SKB_FRAGS
+ 2;
7526 /* Rx side parameters. */
7527 config
->rx_ring_num
= rx_ring_num
;
7528 for (i
= 0; i
< MAX_RX_RINGS
; i
++) {
7529 config
->rx_cfg
[i
].num_rxd
= rx_ring_sz
[i
] *
7530 (rxd_count
[sp
->rxd_mode
] + 1);
7531 config
->rx_cfg
[i
].ring_priority
= i
;
7534 for (i
= 0; i
< rx_ring_num
; i
++) {
7535 config
->rx_cfg
[i
].ring_org
= RING_ORG_BUFF1
;
7536 config
->rx_cfg
[i
].f_no_snoop
=
7537 (NO_SNOOP_RXD
| NO_SNOOP_RXD_BUFFER
);
7540 /* Setting Mac Control parameters */
7541 mac_control
->rmac_pause_time
= rmac_pause_time
;
7542 mac_control
->mc_pause_threshold_q0q3
= mc_pause_threshold_q0q3
;
7543 mac_control
->mc_pause_threshold_q4q7
= mc_pause_threshold_q4q7
;
7546 /* Initialize Ring buffer parameters. */
7547 for (i
= 0; i
< config
->rx_ring_num
; i
++)
7548 atomic_set(&sp
->rx_bufs_left
[i
], 0);
7550 /* initialize the shared memory used by the NIC and the host */
7551 if (init_shared_mem(sp
)) {
7552 DBG_PRINT(ERR_DBG
, "%s: Memory allocation failed\n",
7555 goto mem_alloc_failed
;
7558 sp
->bar0
= ioremap(pci_resource_start(pdev
, 0),
7559 pci_resource_len(pdev
, 0));
7561 DBG_PRINT(ERR_DBG
, "%s: Neterion: cannot remap io mem1\n",
7564 goto bar0_remap_failed
;
7567 sp
->bar1
= ioremap(pci_resource_start(pdev
, 2),
7568 pci_resource_len(pdev
, 2));
7570 DBG_PRINT(ERR_DBG
, "%s: Neterion: cannot remap io mem2\n",
7573 goto bar1_remap_failed
;
7576 dev
->irq
= pdev
->irq
;
7577 dev
->base_addr
= (unsigned long) sp
->bar0
;
7579 /* Initializing the BAR1 address as the start of the FIFO pointer. */
7580 for (j
= 0; j
< MAX_TX_FIFOS
; j
++) {
7581 mac_control
->tx_FIFO_start
[j
] = (struct TxFIFO_element __iomem
*)
7582 (sp
->bar1
+ (j
* 0x00020000));
7585 /* Driver entry points */
7586 dev
->open
= &s2io_open
;
7587 dev
->stop
= &s2io_close
;
7588 dev
->hard_start_xmit
= &s2io_xmit
;
7589 dev
->get_stats
= &s2io_get_stats
;
7590 dev
->set_multicast_list
= &s2io_set_multicast
;
7591 dev
->do_ioctl
= &s2io_ioctl
;
7592 dev
->change_mtu
= &s2io_change_mtu
;
7593 SET_ETHTOOL_OPS(dev
, &netdev_ethtool_ops
);
7594 dev
->features
|= NETIF_F_HW_VLAN_TX
| NETIF_F_HW_VLAN_RX
;
7595 dev
->vlan_rx_register
= s2io_vlan_rx_register
;
7598 * will use eth_mac_addr() for dev->set_mac_address
7599 * mac address will be set every time dev->open() is called
7601 netif_napi_add(dev
, &sp
->napi
, s2io_poll
, 32);
7603 #ifdef CONFIG_NET_POLL_CONTROLLER
7604 dev
->poll_controller
= s2io_netpoll
;
7607 dev
->features
|= NETIF_F_SG
| NETIF_F_IP_CSUM
;
7608 if (sp
->high_dma_flag
== TRUE
)
7609 dev
->features
|= NETIF_F_HIGHDMA
;
7610 dev
->features
|= NETIF_F_TSO
;
7611 dev
->features
|= NETIF_F_TSO6
;
7612 if ((sp
->device_type
& XFRAME_II_DEVICE
) && (ufo
)) {
7613 dev
->features
|= NETIF_F_UFO
;
7614 dev
->features
|= NETIF_F_HW_CSUM
;
7617 dev
->tx_timeout
= &s2io_tx_watchdog
;
7618 dev
->watchdog_timeo
= WATCH_DOG_TIMEOUT
;
7619 INIT_WORK(&sp
->rst_timer_task
, s2io_restart_nic
);
7620 INIT_WORK(&sp
->set_link_task
, s2io_set_link
);
7622 pci_save_state(sp
->pdev
);
7624 /* Setting swapper control on the NIC, for proper reset operation */
7625 if (s2io_set_swapper(sp
)) {
7626 DBG_PRINT(ERR_DBG
, "%s:swapper settings are wrong\n",
7629 goto set_swap_failed
;
7632 /* Verify if the Herc works on the slot its placed into */
7633 if (sp
->device_type
& XFRAME_II_DEVICE
) {
7634 mode
= s2io_verify_pci_mode(sp
);
7636 DBG_PRINT(ERR_DBG
, "%s: ", __FUNCTION__
);
7637 DBG_PRINT(ERR_DBG
, " Unsupported PCI bus mode\n");
7639 goto set_swap_failed
;
7643 /* Not needed for Herc */
7644 if (sp
->device_type
& XFRAME_I_DEVICE
) {
7646 * Fix for all "FFs" MAC address problems observed on
7649 fix_mac_address(sp
);
7654 * MAC address initialization.
7655 * For now only one mac address will be read and used.
7658 val64
= RMAC_ADDR_CMD_MEM_RD
| RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD
|
7659 RMAC_ADDR_CMD_MEM_OFFSET(0 + MAC_MAC_ADDR_START_OFFSET
);
7660 writeq(val64
, &bar0
->rmac_addr_cmd_mem
);
7661 wait_for_cmd_complete(&bar0
->rmac_addr_cmd_mem
,
7662 RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING
, S2IO_BIT_RESET
);
7663 tmp64
= readq(&bar0
->rmac_addr_data0_mem
);
7664 mac_down
= (u32
) tmp64
;
7665 mac_up
= (u32
) (tmp64
>> 32);
7667 sp
->def_mac_addr
[0].mac_addr
[3] = (u8
) (mac_up
);
7668 sp
->def_mac_addr
[0].mac_addr
[2] = (u8
) (mac_up
>> 8);
7669 sp
->def_mac_addr
[0].mac_addr
[1] = (u8
) (mac_up
>> 16);
7670 sp
->def_mac_addr
[0].mac_addr
[0] = (u8
) (mac_up
>> 24);
7671 sp
->def_mac_addr
[0].mac_addr
[5] = (u8
) (mac_down
>> 16);
7672 sp
->def_mac_addr
[0].mac_addr
[4] = (u8
) (mac_down
>> 24);
7674 /* Set the factory defined MAC address initially */
7675 dev
->addr_len
= ETH_ALEN
;
7676 memcpy(dev
->dev_addr
, sp
->def_mac_addr
, ETH_ALEN
);
7678 /* Store the values of the MSIX table in the s2io_nic structure */
7679 store_xmsi_data(sp
);
7680 /* reset Nic and bring it to known state */
7684 * Initialize the tasklet status and link state flags
7685 * and the card state parameter
7687 sp
->tasklet_status
= 0;
7690 /* Initialize spinlocks */
7691 spin_lock_init(&sp
->tx_lock
);
7694 spin_lock_init(&sp
->put_lock
);
7695 spin_lock_init(&sp
->rx_lock
);
7698 * SXE-002: Configure link and activity LED to init state
7701 subid
= sp
->pdev
->subsystem_device
;
7702 if ((subid
& 0xFF) >= 0x07) {
7703 val64
= readq(&bar0
->gpio_control
);
7704 val64
|= 0x0000800000000000ULL
;
7705 writeq(val64
, &bar0
->gpio_control
);
7706 val64
= 0x0411040400000000ULL
;
7707 writeq(val64
, (void __iomem
*) bar0
+ 0x2700);
7708 val64
= readq(&bar0
->gpio_control
);
7711 sp
->rx_csum
= 1; /* Rx chksum verify enabled by default */
7713 if (register_netdev(dev
)) {
7714 DBG_PRINT(ERR_DBG
, "Device registration failed\n");
7716 goto register_failed
;
7719 DBG_PRINT(ERR_DBG
, "Copyright(c) 2002-2007 Neterion Inc.\n");
7720 DBG_PRINT(ERR_DBG
, "%s: Neterion %s (rev %d)\n",dev
->name
,
7721 sp
->product_name
, pdev
->revision
);
7722 DBG_PRINT(ERR_DBG
, "%s: Driver version %s\n", dev
->name
,
7723 s2io_driver_version
);
7724 DBG_PRINT(ERR_DBG
, "%s: MAC ADDR: %s\n",
7725 dev
->name
, print_mac(mac
, dev
->dev_addr
));
7726 DBG_PRINT(ERR_DBG
, "SERIAL NUMBER: %s\n", sp
->serial_num
);
7727 if (sp
->device_type
& XFRAME_II_DEVICE
) {
7728 mode
= s2io_print_pci_mode(sp
);
7730 DBG_PRINT(ERR_DBG
, " Unsupported PCI bus mode\n");
7732 unregister_netdev(dev
);
7733 goto set_swap_failed
;
7736 switch(sp
->rxd_mode
) {
7738 DBG_PRINT(ERR_DBG
, "%s: 1-Buffer receive mode enabled\n",
7742 DBG_PRINT(ERR_DBG
, "%s: 2-Buffer receive mode enabled\n",
7748 DBG_PRINT(ERR_DBG
, "%s: NAPI enabled\n", dev
->name
);
7749 switch(sp
->config
.intr_type
) {
7751 DBG_PRINT(ERR_DBG
, "%s: Interrupt type INTA\n", dev
->name
);
7754 DBG_PRINT(ERR_DBG
, "%s: Interrupt type MSI-X\n", dev
->name
);
7758 DBG_PRINT(ERR_DBG
, "%s: Large receive offload enabled\n",
7761 DBG_PRINT(ERR_DBG
, "%s: UDP Fragmentation Offload(UFO)"
7762 " enabled\n", dev
->name
);
7763 /* Initialize device name */
7764 sprintf(sp
->name
, "%s Neterion %s", dev
->name
, sp
->product_name
);
7766 /* Initialize bimodal Interrupts */
7767 sp
->config
.bimodal
= bimodal
;
7768 if (!(sp
->device_type
& XFRAME_II_DEVICE
) && bimodal
) {
7769 sp
->config
.bimodal
= 0;
7770 DBG_PRINT(ERR_DBG
,"%s:Bimodal intr not supported by Xframe I\n",
7775 * Make Link state as off at this point, when the Link change
7776 * interrupt comes the state will be automatically changed to
7779 netif_carrier_off(dev
);
7790 free_shared_mem(sp
);
7791 pci_disable_device(pdev
);
7792 pci_release_regions(pdev
);
7793 pci_set_drvdata(pdev
, NULL
);
7800 * s2io_rem_nic - Free the PCI device
7801 * @pdev: structure containing the PCI related information of the device.
7802 * Description: This function is called by the Pci subsystem to release a
7803 * PCI device and free up all resource held up by the device. This could
7804 * be in response to a Hot plug event or when the driver is to be removed
7808 static void __devexit
s2io_rem_nic(struct pci_dev
*pdev
)
7810 struct net_device
*dev
=
7811 (struct net_device
*) pci_get_drvdata(pdev
);
7812 struct s2io_nic
*sp
;
7815 DBG_PRINT(ERR_DBG
, "Driver Data is NULL!!\n");
7819 flush_scheduled_work();
7822 unregister_netdev(dev
);
7824 free_shared_mem(sp
);
7827 pci_release_regions(pdev
);
7828 pci_set_drvdata(pdev
, NULL
);
7830 pci_disable_device(pdev
);
7834 * s2io_starter - Entry point for the driver
7835 * Description: This function is the entry point for the driver. It verifies
7836 * the module loadable parameters and initializes PCI configuration space.
7839 int __init
s2io_starter(void)
7841 return pci_register_driver(&s2io_driver
);
7845 * s2io_closer - Cleanup routine for the driver
7846 * Description: This function is the cleanup routine for the driver. It unregist * ers the driver.
7849 static __exit
void s2io_closer(void)
7851 pci_unregister_driver(&s2io_driver
);
7852 DBG_PRINT(INIT_DBG
, "cleanup done\n");
7855 module_init(s2io_starter
);
7856 module_exit(s2io_closer
);
7858 static int check_L2_lro_capable(u8
*buffer
, struct iphdr
**ip
,
7859 struct tcphdr
**tcp
, struct RxD_t
*rxdp
)
7862 u8 l2_type
= (u8
)((rxdp
->Control_1
>> 37) & 0x7), ip_len
;
7864 if (!(rxdp
->Control_1
& RXD_FRAME_PROTO_TCP
)) {
7865 DBG_PRINT(INIT_DBG
,"%s: Non-TCP frames not supported for LRO\n",
7871 * By default the VLAN field in the MAC is stripped by the card, if this
7872 * feature is turned off in rx_pa_cfg register, then the ip_off field
7873 * has to be shifted by a further 2 bytes
7876 case 0: /* DIX type */
7877 case 4: /* DIX type with VLAN */
7878 ip_off
= HEADER_ETHERNET_II_802_3_SIZE
;
7880 /* LLC, SNAP etc are considered non-mergeable */
7885 *ip
= (struct iphdr
*)((u8
*)buffer
+ ip_off
);
7886 ip_len
= (u8
)((*ip
)->ihl
);
7888 *tcp
= (struct tcphdr
*)((unsigned long)*ip
+ ip_len
);
7893 static int check_for_socket_match(struct lro
*lro
, struct iphdr
*ip
,
7896 DBG_PRINT(INFO_DBG
,"%s: Been here...\n", __FUNCTION__
);
7897 if ((lro
->iph
->saddr
!= ip
->saddr
) || (lro
->iph
->daddr
!= ip
->daddr
) ||
7898 (lro
->tcph
->source
!= tcp
->source
) || (lro
->tcph
->dest
!= tcp
->dest
))
7903 static inline int get_l4_pyld_length(struct iphdr
*ip
, struct tcphdr
*tcp
)
7905 return(ntohs(ip
->tot_len
) - (ip
->ihl
<< 2) - (tcp
->doff
<< 2));
7908 static void initiate_new_session(struct lro
*lro
, u8
*l2h
,
7909 struct iphdr
*ip
, struct tcphdr
*tcp
, u32 tcp_pyld_len
)
7911 DBG_PRINT(INFO_DBG
,"%s: Been here...\n", __FUNCTION__
);
7915 lro
->tcp_next_seq
= tcp_pyld_len
+ ntohl(tcp
->seq
);
7916 lro
->tcp_ack
= ntohl(tcp
->ack_seq
);
7918 lro
->total_len
= ntohs(ip
->tot_len
);
7921 * check if we saw TCP timestamp. Other consistency checks have
7922 * already been done.
7924 if (tcp
->doff
== 8) {
7926 ptr
= (u32
*)(tcp
+1);
7928 lro
->cur_tsval
= *(ptr
+1);
7929 lro
->cur_tsecr
= *(ptr
+2);
7934 static void update_L3L4_header(struct s2io_nic
*sp
, struct lro
*lro
)
7936 struct iphdr
*ip
= lro
->iph
;
7937 struct tcphdr
*tcp
= lro
->tcph
;
7939 struct stat_block
*statinfo
= sp
->mac_control
.stats_info
;
7940 DBG_PRINT(INFO_DBG
,"%s: Been here...\n", __FUNCTION__
);
7942 /* Update L3 header */
7943 ip
->tot_len
= htons(lro
->total_len
);
7945 nchk
= ip_fast_csum((u8
*)lro
->iph
, ip
->ihl
);
7948 /* Update L4 header */
7949 tcp
->ack_seq
= lro
->tcp_ack
;
7950 tcp
->window
= lro
->window
;
7952 /* Update tsecr field if this session has timestamps enabled */
7954 u32
*ptr
= (u32
*)(tcp
+ 1);
7955 *(ptr
+2) = lro
->cur_tsecr
;
7958 /* Update counters required for calculation of
7959 * average no. of packets aggregated.
7961 statinfo
->sw_stat
.sum_avg_pkts_aggregated
+= lro
->sg_num
;
7962 statinfo
->sw_stat
.num_aggregations
++;
7965 static void aggregate_new_rx(struct lro
*lro
, struct iphdr
*ip
,
7966 struct tcphdr
*tcp
, u32 l4_pyld
)
7968 DBG_PRINT(INFO_DBG
,"%s: Been here...\n", __FUNCTION__
);
7969 lro
->total_len
+= l4_pyld
;
7970 lro
->frags_len
+= l4_pyld
;
7971 lro
->tcp_next_seq
+= l4_pyld
;
7974 /* Update ack seq no. and window ad(from this pkt) in LRO object */
7975 lro
->tcp_ack
= tcp
->ack_seq
;
7976 lro
->window
= tcp
->window
;
7980 /* Update tsecr and tsval from this packet */
7981 ptr
= (u32
*) (tcp
+ 1);
7982 lro
->cur_tsval
= *(ptr
+ 1);
7983 lro
->cur_tsecr
= *(ptr
+ 2);
7987 static int verify_l3_l4_lro_capable(struct lro
*l_lro
, struct iphdr
*ip
,
7988 struct tcphdr
*tcp
, u32 tcp_pyld_len
)
7992 DBG_PRINT(INFO_DBG
,"%s: Been here...\n", __FUNCTION__
);
7994 if (!tcp_pyld_len
) {
7995 /* Runt frame or a pure ack */
7999 if (ip
->ihl
!= 5) /* IP has options */
8002 /* If we see CE codepoint in IP header, packet is not mergeable */
8003 if (INET_ECN_is_ce(ipv4_get_dsfield(ip
)))
8006 /* If we see ECE or CWR flags in TCP header, packet is not mergeable */
8007 if (tcp
->urg
|| tcp
->psh
|| tcp
->rst
|| tcp
->syn
|| tcp
->fin
||
8008 tcp
->ece
|| tcp
->cwr
|| !tcp
->ack
) {
8010 * Currently recognize only the ack control word and
8011 * any other control field being set would result in
8012 * flushing the LRO session
8018 * Allow only one TCP timestamp option. Don't aggregate if
8019 * any other options are detected.
8021 if (tcp
->doff
!= 5 && tcp
->doff
!= 8)
8024 if (tcp
->doff
== 8) {
8025 ptr
= (u8
*)(tcp
+ 1);
8026 while (*ptr
== TCPOPT_NOP
)
8028 if (*ptr
!= TCPOPT_TIMESTAMP
|| *(ptr
+1) != TCPOLEN_TIMESTAMP
)
8031 /* Ensure timestamp value increases monotonically */
8033 if (l_lro
->cur_tsval
> *((u32
*)(ptr
+2)))
8036 /* timestamp echo reply should be non-zero */
8037 if (*((u32
*)(ptr
+6)) == 0)
8045 s2io_club_tcp_session(u8
*buffer
, u8
**tcp
, u32
*tcp_len
, struct lro
**lro
,
8046 struct RxD_t
*rxdp
, struct s2io_nic
*sp
)
8049 struct tcphdr
*tcph
;
8052 if (!(ret
= check_L2_lro_capable(buffer
, &ip
, (struct tcphdr
**)tcp
,
8054 DBG_PRINT(INFO_DBG
,"IP Saddr: %x Daddr: %x\n",
8055 ip
->saddr
, ip
->daddr
);
8060 tcph
= (struct tcphdr
*)*tcp
;
8061 *tcp_len
= get_l4_pyld_length(ip
, tcph
);
8062 for (i
=0; i
<MAX_LRO_SESSIONS
; i
++) {
8063 struct lro
*l_lro
= &sp
->lro0_n
[i
];
8064 if (l_lro
->in_use
) {
8065 if (check_for_socket_match(l_lro
, ip
, tcph
))
8067 /* Sock pair matched */
8070 if ((*lro
)->tcp_next_seq
!= ntohl(tcph
->seq
)) {
8071 DBG_PRINT(INFO_DBG
, "%s:Out of order. expected "
8072 "0x%x, actual 0x%x\n", __FUNCTION__
,
8073 (*lro
)->tcp_next_seq
,
8076 sp
->mac_control
.stats_info
->
8077 sw_stat
.outof_sequence_pkts
++;
8082 if (!verify_l3_l4_lro_capable(l_lro
, ip
, tcph
,*tcp_len
))
8083 ret
= 1; /* Aggregate */
8085 ret
= 2; /* Flush both */
8091 /* Before searching for available LRO objects,
8092 * check if the pkt is L3/L4 aggregatable. If not
8093 * don't create new LRO session. Just send this
8096 if (verify_l3_l4_lro_capable(NULL
, ip
, tcph
, *tcp_len
)) {
8100 for (i
=0; i
<MAX_LRO_SESSIONS
; i
++) {
8101 struct lro
*l_lro
= &sp
->lro0_n
[i
];
8102 if (!(l_lro
->in_use
)) {
8104 ret
= 3; /* Begin anew */
8110 if (ret
== 0) { /* sessions exceeded */
8111 DBG_PRINT(INFO_DBG
,"%s:All LRO sessions already in use\n",
8119 initiate_new_session(*lro
, buffer
, ip
, tcph
, *tcp_len
);
8122 update_L3L4_header(sp
, *lro
);
8125 aggregate_new_rx(*lro
, ip
, tcph
, *tcp_len
);
8126 if ((*lro
)->sg_num
== sp
->lro_max_aggr_per_sess
) {
8127 update_L3L4_header(sp
, *lro
);
8128 ret
= 4; /* Flush the LRO */
8132 DBG_PRINT(ERR_DBG
,"%s:Dont know, can't say!!\n",
8140 static void clear_lro_session(struct lro
*lro
)
8142 static u16 lro_struct_size
= sizeof(struct lro
);
8144 memset(lro
, 0, lro_struct_size
);
8147 static void queue_rx_frame(struct sk_buff
*skb
)
8149 struct net_device
*dev
= skb
->dev
;
8151 skb
->protocol
= eth_type_trans(skb
, dev
);
8153 netif_receive_skb(skb
);
8158 static void lro_append_pkt(struct s2io_nic
*sp
, struct lro
*lro
,
8159 struct sk_buff
*skb
,
8162 struct sk_buff
*first
= lro
->parent
;
8164 first
->len
+= tcp_len
;
8165 first
->data_len
= lro
->frags_len
;
8166 skb_pull(skb
, (skb
->len
- tcp_len
));
8167 if (skb_shinfo(first
)->frag_list
)
8168 lro
->last_frag
->next
= skb
;
8170 skb_shinfo(first
)->frag_list
= skb
;
8171 first
->truesize
+= skb
->truesize
;
8172 lro
->last_frag
= skb
;
8173 sp
->mac_control
.stats_info
->sw_stat
.clubbed_frms_cnt
++;
8178 * s2io_io_error_detected - called when PCI error is detected
8179 * @pdev: Pointer to PCI device
8180 * @state: The current pci connection state
8182 * This function is called after a PCI bus error affecting
8183 * this device has been detected.
8185 static pci_ers_result_t
s2io_io_error_detected(struct pci_dev
*pdev
,
8186 pci_channel_state_t state
)
8188 struct net_device
*netdev
= pci_get_drvdata(pdev
);
8189 struct s2io_nic
*sp
= netdev
->priv
;
8191 netif_device_detach(netdev
);
8193 if (netif_running(netdev
)) {
8194 /* Bring down the card, while avoiding PCI I/O */
8195 do_s2io_card_down(sp
, 0);
8197 pci_disable_device(pdev
);
8199 return PCI_ERS_RESULT_NEED_RESET
;
8203 * s2io_io_slot_reset - called after the pci bus has been reset.
8204 * @pdev: Pointer to PCI device
8206 * Restart the card from scratch, as if from a cold-boot.
8207 * At this point, the card has exprienced a hard reset,
8208 * followed by fixups by BIOS, and has its config space
8209 * set up identically to what it was at cold boot.
8211 static pci_ers_result_t
s2io_io_slot_reset(struct pci_dev
*pdev
)
8213 struct net_device
*netdev
= pci_get_drvdata(pdev
);
8214 struct s2io_nic
*sp
= netdev
->priv
;
8216 if (pci_enable_device(pdev
)) {
8217 printk(KERN_ERR
"s2io: "
8218 "Cannot re-enable PCI device after reset.\n");
8219 return PCI_ERS_RESULT_DISCONNECT
;
8222 pci_set_master(pdev
);
8225 return PCI_ERS_RESULT_RECOVERED
;
8229 * s2io_io_resume - called when traffic can start flowing again.
8230 * @pdev: Pointer to PCI device
8232 * This callback is called when the error recovery driver tells
8233 * us that its OK to resume normal operation.
8235 static void s2io_io_resume(struct pci_dev
*pdev
)
8237 struct net_device
*netdev
= pci_get_drvdata(pdev
);
8238 struct s2io_nic
*sp
= netdev
->priv
;
8240 if (netif_running(netdev
)) {
8241 if (s2io_card_up(sp
)) {
8242 printk(KERN_ERR
"s2io: "
8243 "Can't bring device back up after reset.\n");
8247 if (s2io_set_mac_addr(netdev
, netdev
->dev_addr
) == FAILURE
) {
8249 printk(KERN_ERR
"s2io: "
8250 "Can't resetore mac addr after reset.\n");
8255 netif_device_attach(netdev
);
8256 netif_wake_queue(netdev
);