2 * Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved.
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
34 #include <linux/module.h>
35 #include <linux/moduleparam.h>
36 #include <linux/netdevice.h>
37 #include <linux/etherdevice.h>
38 #include <linux/if_vlan.h>
39 #include <linux/slab.h>
43 static int wide_ppm_offset;
44 module_param(wide_ppm_offset, int, 0644);
45 MODULE_PARM_DESC(wide_ppm_offset, "Increase CX4 interface clock ppm offset, 0=100ppm (default), 1=300ppm");
47 static u32 crit_err_count;
48 u32 int_mod_timer_init;
49 u32 int_mod_cq_depth_256;
50 u32 int_mod_cq_depth_128;
51 u32 int_mod_cq_depth_32;
52 u32 int_mod_cq_depth_24;
53 u32 int_mod_cq_depth_16;
54 u32 int_mod_cq_depth_4;
55 u32 int_mod_cq_depth_1;
56 static const u8 nes_max_critical_error_count = 100;
59 static void nes_cqp_ce_handler(struct nes_device *nesdev, struct nes_hw_cq *cq);
60 static void nes_init_csr_ne020(struct nes_device *nesdev, u8 hw_rev, u8 port_count);
61 static int nes_init_serdes(struct nes_device *nesdev, u8 hw_rev, u8 port_count,
62 struct nes_adapter *nesadapter, u8 OneG_Mode);
63 static void nes_nic_napi_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *cq);
64 static void nes_process_aeq(struct nes_device *nesdev, struct nes_hw_aeq *aeq);
65 static void nes_process_ceq(struct nes_device *nesdev, struct nes_hw_ceq *ceq);
66 static void nes_process_iwarp_aeqe(struct nes_device *nesdev,
67 struct nes_hw_aeqe *aeqe);
68 static void process_critical_error(struct nes_device *nesdev);
69 static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number);
70 static unsigned int nes_reset_adapter_ne020(struct nes_device *nesdev, u8 *OneG_Mode);
71 static void nes_terminate_start_timer(struct nes_qp *nesqp);
73 #ifdef CONFIG_INFINIBAND_NES_DEBUG
74 static unsigned char *nes_iwarp_state_str[] = {
85 static unsigned char *nes_tcp_state_str[] = {
105 static inline void print_ip(struct nes_cm_node *cm_node)
107 unsigned char *rem_addr;
109 rem_addr = (unsigned char *)&cm_node->rem_addr;
110 printk(KERN_ERR PFX "Remote IP addr: %pI4\n", rem_addr);
115 * nes_nic_init_timer_defaults
117 void nes_nic_init_timer_defaults(struct nes_device *nesdev, u8 jumbomode)
120 struct nes_adapter *nesadapter = nesdev->nesadapter;
121 struct nes_hw_tune_timer *shared_timer = &nesadapter->tune_timer;
123 spin_lock_irqsave(&nesadapter->periodic_timer_lock, flags);
125 shared_timer->timer_in_use_min = NES_NIC_FAST_TIMER_LOW;
126 shared_timer->timer_in_use_max = NES_NIC_FAST_TIMER_HIGH;
128 shared_timer->threshold_low = DEFAULT_JUMBO_NES_QL_LOW;
129 shared_timer->threshold_target = DEFAULT_JUMBO_NES_QL_TARGET;
130 shared_timer->threshold_high = DEFAULT_JUMBO_NES_QL_HIGH;
132 shared_timer->threshold_low = DEFAULT_NES_QL_LOW;
133 shared_timer->threshold_target = DEFAULT_NES_QL_TARGET;
134 shared_timer->threshold_high = DEFAULT_NES_QL_HIGH;
137 /* todo use netdev->mtu to set thresholds */
138 spin_unlock_irqrestore(&nesadapter->periodic_timer_lock, flags);
145 static void nes_nic_init_timer(struct nes_device *nesdev)
148 struct nes_adapter *nesadapter = nesdev->nesadapter;
149 struct nes_hw_tune_timer *shared_timer = &nesadapter->tune_timer;
151 spin_lock_irqsave(&nesadapter->periodic_timer_lock, flags);
153 if (shared_timer->timer_in_use_old == 0) {
154 nesdev->deepcq_count = 0;
155 shared_timer->timer_direction_upward = 0;
156 shared_timer->timer_direction_downward = 0;
157 shared_timer->timer_in_use = NES_NIC_FAST_TIMER;
158 shared_timer->timer_in_use_old = 0;
161 if (shared_timer->timer_in_use != shared_timer->timer_in_use_old) {
162 shared_timer->timer_in_use_old = shared_timer->timer_in_use;
163 nes_write32(nesdev->regs+NES_PERIODIC_CONTROL,
164 0x80000000 | ((u32)(shared_timer->timer_in_use*8)));
166 /* todo use netdev->mtu to set thresholds */
167 spin_unlock_irqrestore(&nesadapter->periodic_timer_lock, flags);
174 static void nes_nic_tune_timer(struct nes_device *nesdev)
177 struct nes_adapter *nesadapter = nesdev->nesadapter;
178 struct nes_hw_tune_timer *shared_timer = &nesadapter->tune_timer;
179 u16 cq_count = nesdev->currcq_count;
181 spin_lock_irqsave(&nesadapter->periodic_timer_lock, flags);
183 if (shared_timer->cq_count_old <= cq_count)
184 shared_timer->cq_direction_downward = 0;
186 shared_timer->cq_direction_downward++;
187 shared_timer->cq_count_old = cq_count;
188 if (shared_timer->cq_direction_downward > NES_NIC_CQ_DOWNWARD_TREND) {
189 if (cq_count <= shared_timer->threshold_low &&
190 shared_timer->threshold_low > 4) {
191 shared_timer->threshold_low = shared_timer->threshold_low/2;
192 shared_timer->cq_direction_downward=0;
193 nesdev->currcq_count = 0;
194 spin_unlock_irqrestore(&nesadapter->periodic_timer_lock, flags);
200 nesdev->deepcq_count += cq_count;
201 if (cq_count <= shared_timer->threshold_low) { /* increase timer gently */
202 shared_timer->timer_direction_upward++;
203 shared_timer->timer_direction_downward = 0;
204 } else if (cq_count <= shared_timer->threshold_target) { /* balanced */
205 shared_timer->timer_direction_upward = 0;
206 shared_timer->timer_direction_downward = 0;
207 } else if (cq_count <= shared_timer->threshold_high) { /* decrease timer gently */
208 shared_timer->timer_direction_downward++;
209 shared_timer->timer_direction_upward = 0;
210 } else if (cq_count <= (shared_timer->threshold_high) * 2) {
211 shared_timer->timer_in_use -= 2;
212 shared_timer->timer_direction_upward = 0;
213 shared_timer->timer_direction_downward++;
215 shared_timer->timer_in_use -= 4;
216 shared_timer->timer_direction_upward = 0;
217 shared_timer->timer_direction_downward++;
220 if (shared_timer->timer_direction_upward > 3 ) { /* using history */
221 shared_timer->timer_in_use += 3;
222 shared_timer->timer_direction_upward = 0;
223 shared_timer->timer_direction_downward = 0;
225 if (shared_timer->timer_direction_downward > 5) { /* using history */
226 shared_timer->timer_in_use -= 4 ;
227 shared_timer->timer_direction_downward = 0;
228 shared_timer->timer_direction_upward = 0;
232 /* boundary checking */
233 if (shared_timer->timer_in_use > shared_timer->threshold_high)
234 shared_timer->timer_in_use = shared_timer->threshold_high;
235 else if (shared_timer->timer_in_use < shared_timer->threshold_low)
236 shared_timer->timer_in_use = shared_timer->threshold_low;
238 nesdev->currcq_count = 0;
240 spin_unlock_irqrestore(&nesadapter->periodic_timer_lock, flags);
245 * nes_init_adapter - initialize adapter
247 struct nes_adapter *nes_init_adapter(struct nes_device *nesdev, u8 hw_rev) {
248 struct nes_adapter *nesadapter = NULL;
249 unsigned long num_pds;
268 /* search the list of existing adapters */
269 list_for_each_entry(nesadapter, &nes_adapter_list, list) {
270 nes_debug(NES_DBG_INIT, "Searching Adapter list for PCI devfn = 0x%X,"
271 " adapter PCI slot/bus = %u/%u, pci devices PCI slot/bus = %u/%u, .\n",
272 nesdev->pcidev->devfn,
273 PCI_SLOT(nesadapter->devfn),
274 nesadapter->bus_number,
275 PCI_SLOT(nesdev->pcidev->devfn),
276 nesdev->pcidev->bus->number );
277 if ((PCI_SLOT(nesadapter->devfn) == PCI_SLOT(nesdev->pcidev->devfn)) &&
278 (nesadapter->bus_number == nesdev->pcidev->bus->number)) {
279 nesadapter->ref_count++;
284 /* no adapter found */
285 num_pds = pci_resource_len(nesdev->pcidev, BAR_1) >> PAGE_SHIFT;
286 if ((hw_rev != NE020_REV) && (hw_rev != NE020_REV1)) {
287 nes_debug(NES_DBG_INIT, "NE020 driver detected unknown hardware revision 0x%x\n",
292 nes_debug(NES_DBG_INIT, "Determine Soft Reset, QP_control=0x%x, CPU0=0x%x, CPU1=0x%x, CPU2=0x%x\n",
293 nes_read_indexed(nesdev, NES_IDX_QP_CONTROL + PCI_FUNC(nesdev->pcidev->devfn) * 8),
294 nes_read_indexed(nesdev, NES_IDX_INT_CPU_STATUS),
295 nes_read_indexed(nesdev, NES_IDX_INT_CPU_STATUS + 4),
296 nes_read_indexed(nesdev, NES_IDX_INT_CPU_STATUS + 8));
298 nes_debug(NES_DBG_INIT, "Reset and init NE020\n");
301 if ((port_count = nes_reset_adapter_ne020(nesdev, &OneG_Mode)) == 0)
304 max_qp = nes_read_indexed(nesdev, NES_IDX_QP_CTX_SIZE);
305 nes_debug(NES_DBG_INIT, "QP_CTX_SIZE=%u\n", max_qp);
307 u32temp = nes_read_indexed(nesdev, NES_IDX_QUAD_HASH_TABLE_SIZE);
308 if (max_qp > ((u32)1 << (u32temp & 0x001f))) {
309 nes_debug(NES_DBG_INIT, "Reducing Max QPs to %u due to hash table size = 0x%08X\n",
311 max_qp = (u32)1 << (u32temp & 0x001f);
314 hte_index_mask = ((u32)1 << ((u32temp & 0x001f)+1))-1;
315 nes_debug(NES_DBG_INIT, "Max QP = %u, hte_index_mask = 0x%08X.\n",
316 max_qp, hte_index_mask);
318 u32temp = nes_read_indexed(nesdev, NES_IDX_IRRQ_COUNT);
320 max_irrq = 1 << (u32temp & 0x001f);
322 if (max_qp > max_irrq) {
324 nes_debug(NES_DBG_INIT, "Reducing Max QPs to %u due to Available Q1s.\n",
328 /* there should be no reason to allocate more pds than qps */
329 if (num_pds > max_qp)
332 u32temp = nes_read_indexed(nesdev, NES_IDX_MRT_SIZE);
333 max_mr = (u32)8192 << (u32temp & 0x7);
335 u32temp = nes_read_indexed(nesdev, NES_IDX_PBL_REGION_SIZE);
336 max_256pbl = (u32)1 << (u32temp & 0x0000001f);
337 max_4kpbl = (u32)1 << ((u32temp >> 16) & 0x0000001f);
338 max_cq = nes_read_indexed(nesdev, NES_IDX_CQ_CTX_SIZE);
340 u32temp = nes_read_indexed(nesdev, NES_IDX_ARP_CACHE_SIZE);
341 arp_table_size = 1 << u32temp;
343 adapter_size = (sizeof(struct nes_adapter) +
344 (sizeof(unsigned long)-1)) & (~(sizeof(unsigned long)-1));
345 adapter_size += sizeof(unsigned long) * BITS_TO_LONGS(max_qp);
346 adapter_size += sizeof(unsigned long) * BITS_TO_LONGS(max_mr);
347 adapter_size += sizeof(unsigned long) * BITS_TO_LONGS(max_cq);
348 adapter_size += sizeof(unsigned long) * BITS_TO_LONGS(num_pds);
349 adapter_size += sizeof(unsigned long) * BITS_TO_LONGS(arp_table_size);
350 adapter_size += sizeof(struct nes_qp **) * max_qp;
352 /* allocate a new adapter struct */
353 nesadapter = kzalloc(adapter_size, GFP_KERNEL);
354 if (nesadapter == NULL) {
358 nes_debug(NES_DBG_INIT, "Allocating new nesadapter @ %p, size = %u (actual size = %u).\n",
359 nesadapter, (u32)sizeof(struct nes_adapter), adapter_size);
361 if (nes_read_eeprom_values(nesdev, nesadapter)) {
362 printk(KERN_ERR PFX "Unable to read EEPROM data.\n");
367 nesadapter->vendor_id = (((u32) nesadapter->mac_addr_high) << 8) |
368 (nesadapter->mac_addr_low >> 24);
370 pci_bus_read_config_word(nesdev->pcidev->bus, nesdev->pcidev->devfn,
371 PCI_DEVICE_ID, &device_id);
372 nesadapter->vendor_part_id = device_id;
374 if (nes_init_serdes(nesdev, hw_rev, port_count, nesadapter,
379 nes_init_csr_ne020(nesdev, hw_rev, port_count);
381 memset(nesadapter->pft_mcast_map, 255,
382 sizeof nesadapter->pft_mcast_map);
384 /* populate the new nesadapter */
385 nesadapter->devfn = nesdev->pcidev->devfn;
386 nesadapter->bus_number = nesdev->pcidev->bus->number;
387 nesadapter->ref_count = 1;
388 nesadapter->timer_int_req = 0xffff0000;
389 nesadapter->OneG_Mode = OneG_Mode;
390 nesadapter->doorbell_start = nesdev->doorbell_region;
392 /* nesadapter->tick_delta = clk_divisor; */
393 nesadapter->hw_rev = hw_rev;
394 nesadapter->port_count = port_count;
396 nesadapter->max_qp = max_qp;
397 nesadapter->hte_index_mask = hte_index_mask;
398 nesadapter->max_irrq = max_irrq;
399 nesadapter->max_mr = max_mr;
400 nesadapter->max_256pbl = max_256pbl - 1;
401 nesadapter->max_4kpbl = max_4kpbl - 1;
402 nesadapter->max_cq = max_cq;
403 nesadapter->free_256pbl = max_256pbl - 1;
404 nesadapter->free_4kpbl = max_4kpbl - 1;
405 nesadapter->max_pd = num_pds;
406 nesadapter->arp_table_size = arp_table_size;
408 nesadapter->et_pkt_rate_low = NES_TIMER_ENABLE_LIMIT;
409 if (nes_drv_opt & NES_DRV_OPT_DISABLE_INT_MOD) {
410 nesadapter->et_use_adaptive_rx_coalesce = 0;
411 nesadapter->timer_int_limit = NES_TIMER_INT_LIMIT;
412 nesadapter->et_rx_coalesce_usecs_irq = interrupt_mod_interval;
414 nesadapter->et_use_adaptive_rx_coalesce = 1;
415 nesadapter->timer_int_limit = NES_TIMER_INT_LIMIT_DYNAMIC;
416 nesadapter->et_rx_coalesce_usecs_irq = 0;
417 printk(PFX "%s: Using Adaptive Interrupt Moderation\n", __func__);
419 /* Setup and enable the periodic timer */
420 if (nesadapter->et_rx_coalesce_usecs_irq)
421 nes_write32(nesdev->regs+NES_PERIODIC_CONTROL, 0x80000000 |
422 ((u32)(nesadapter->et_rx_coalesce_usecs_irq * 8)));
424 nes_write32(nesdev->regs+NES_PERIODIC_CONTROL, 0x00000000);
426 nesadapter->base_pd = 1;
428 nesadapter->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY |
429 IB_DEVICE_MEM_WINDOW |
430 IB_DEVICE_MEM_MGT_EXTENSIONS;
432 nesadapter->allocated_qps = (unsigned long *)&(((unsigned char *)nesadapter)
433 [(sizeof(struct nes_adapter)+(sizeof(unsigned long)-1))&(~(sizeof(unsigned long)-1))]);
434 nesadapter->allocated_cqs = &nesadapter->allocated_qps[BITS_TO_LONGS(max_qp)];
435 nesadapter->allocated_mrs = &nesadapter->allocated_cqs[BITS_TO_LONGS(max_cq)];
436 nesadapter->allocated_pds = &nesadapter->allocated_mrs[BITS_TO_LONGS(max_mr)];
437 nesadapter->allocated_arps = &nesadapter->allocated_pds[BITS_TO_LONGS(num_pds)];
438 nesadapter->qp_table = (struct nes_qp **)(&nesadapter->allocated_arps[BITS_TO_LONGS(arp_table_size)]);
441 /* mark the usual suspect QPs, MR and CQs as in use */
442 for (u32temp = 0; u32temp < NES_FIRST_QPN; u32temp++) {
443 set_bit(u32temp, nesadapter->allocated_qps);
444 set_bit(u32temp, nesadapter->allocated_cqs);
446 set_bit(0, nesadapter->allocated_mrs);
448 for (u32temp = 0; u32temp < 20; u32temp++)
449 set_bit(u32temp, nesadapter->allocated_pds);
450 u32temp = nes_read_indexed(nesdev, NES_IDX_QP_MAX_CFG_SIZES);
452 max_rq_wrs = ((u32temp >> 8) & 3);
453 switch (max_rq_wrs) {
468 max_sq_wrs = (u32temp & 3);
469 switch (max_sq_wrs) {
483 nesadapter->max_qp_wr = min(max_rq_wrs, max_sq_wrs);
484 nesadapter->max_irrq_wr = (u32temp >> 16) & 3;
486 nesadapter->max_sge = 4;
487 nesadapter->max_cqe = 32766;
489 if (nes_read_eeprom_values(nesdev, nesadapter)) {
490 printk(KERN_ERR PFX "Unable to read EEPROM data.\n");
495 u32temp = nes_read_indexed(nesdev, NES_IDX_TCP_TIMER_CONFIG);
496 nes_write_indexed(nesdev, NES_IDX_TCP_TIMER_CONFIG,
497 (u32temp & 0xff000000) | (nesadapter->tcp_timer_core_clk_divisor & 0x00ffffff));
499 /* setup port configuration */
500 if (nesadapter->port_count == 1) {
501 nesadapter->log_port = 0x00000000;
502 if (nes_drv_opt & NES_DRV_OPT_DUAL_LOGICAL_PORT)
503 nes_write_indexed(nesdev, NES_IDX_TX_POOL_SIZE, 0x00000002);
505 nes_write_indexed(nesdev, NES_IDX_TX_POOL_SIZE, 0x00000003);
507 if (nesadapter->phy_type[0] == NES_PHY_TYPE_PUMA_1G) {
508 nesadapter->log_port = 0x000000D8;
510 if (nesadapter->port_count == 2)
511 nesadapter->log_port = 0x00000044;
513 nesadapter->log_port = 0x000000e4;
515 nes_write_indexed(nesdev, NES_IDX_TX_POOL_SIZE, 0x00000003);
518 nes_write_indexed(nesdev, NES_IDX_NIC_LOGPORT_TO_PHYPORT,
519 nesadapter->log_port);
520 nes_debug(NES_DBG_INIT, "Probe time, LOG2PHY=%u\n",
521 nes_read_indexed(nesdev, NES_IDX_NIC_LOGPORT_TO_PHYPORT));
523 spin_lock_init(&nesadapter->resource_lock);
524 spin_lock_init(&nesadapter->phy_lock);
525 spin_lock_init(&nesadapter->pbl_lock);
526 spin_lock_init(&nesadapter->periodic_timer_lock);
528 INIT_LIST_HEAD(&nesadapter->nesvnic_list[0]);
529 INIT_LIST_HEAD(&nesadapter->nesvnic_list[1]);
530 INIT_LIST_HEAD(&nesadapter->nesvnic_list[2]);
531 INIT_LIST_HEAD(&nesadapter->nesvnic_list[3]);
533 if ((!nesadapter->OneG_Mode) && (nesadapter->port_count == 2)) {
534 u32 pcs_control_status0, pcs_control_status1;
542 pcs_control_status0 = nes_read_indexed(nesdev,
543 NES_IDX_PHY_PCS_CONTROL_STATUS0);
544 pcs_control_status1 = nes_read_indexed(nesdev,
545 NES_IDX_PHY_PCS_CONTROL_STATUS0 + 0x200);
547 for (i = 0; i < NES_MAX_LINK_CHECK; i++) {
548 pcs_control_status0 = nes_read_indexed(nesdev,
549 NES_IDX_PHY_PCS_CONTROL_STATUS0);
550 pcs_control_status1 = nes_read_indexed(nesdev,
551 NES_IDX_PHY_PCS_CONTROL_STATUS0 + 0x200);
552 if ((0x0F000100 == (pcs_control_status0 & 0x0F000100))
553 || (0x0F000100 == (pcs_control_status1 & 0x0F000100)))
558 spin_lock_irqsave(&nesadapter->phy_lock, flags);
559 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1, 0x0000F0C8);
561 reset_value = nes_read32(nesdev->regs+NES_SOFTWARE_RESET);
562 reset_value |= 0x0000003d;
563 nes_write32(nesdev->regs+NES_SOFTWARE_RESET, reset_value);
565 while (((nes_read32(nesdev->regs+NES_SOFTWARE_RESET)
566 & 0x00000040) != 0x00000040) && (j++ < 5000));
567 spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
569 pcs_control_status0 = nes_read_indexed(nesdev,
570 NES_IDX_PHY_PCS_CONTROL_STATUS0);
571 pcs_control_status1 = nes_read_indexed(nesdev,
572 NES_IDX_PHY_PCS_CONTROL_STATUS0 + 0x200);
574 for (i = 0; i < NES_MAX_LINK_CHECK; i++) {
575 pcs_control_status0 = nes_read_indexed(nesdev,
576 NES_IDX_PHY_PCS_CONTROL_STATUS0);
577 pcs_control_status1 = nes_read_indexed(nesdev,
578 NES_IDX_PHY_PCS_CONTROL_STATUS0 + 0x200);
579 if ((0x0F000100 == (pcs_control_status0 & 0x0F000100))
580 || (0x0F000100 == (pcs_control_status1 & 0x0F000100))) {
581 if (++ext_cnt > int_cnt) {
582 spin_lock_irqsave(&nesadapter->phy_lock, flags);
583 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1,
586 reset_value = nes_read32(nesdev->regs+NES_SOFTWARE_RESET);
587 reset_value |= 0x0000003d;
588 nes_write32(nesdev->regs+NES_SOFTWARE_RESET, reset_value);
590 while (((nes_read32(nesdev->regs+NES_SOFTWARE_RESET)
591 & 0x00000040) != 0x00000040) && (j++ < 5000));
592 spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
601 if (nesadapter->hw_rev == NE020_REV) {
602 init_timer(&nesadapter->mh_timer);
603 nesadapter->mh_timer.function = nes_mh_fix;
604 nesadapter->mh_timer.expires = jiffies + (HZ/5); /* 1 second */
605 nesadapter->mh_timer.data = (unsigned long)nesdev;
606 add_timer(&nesadapter->mh_timer);
608 nes_write32(nesdev->regs+NES_INTF_INT_STAT, 0x0f000000);
611 init_timer(&nesadapter->lc_timer);
612 nesadapter->lc_timer.function = nes_clc;
613 nesadapter->lc_timer.expires = jiffies + 3600 * HZ; /* 1 hour */
614 nesadapter->lc_timer.data = (unsigned long)nesdev;
615 add_timer(&nesadapter->lc_timer);
617 list_add_tail(&nesadapter->list, &nes_adapter_list);
619 for (func_index = 0; func_index < 8; func_index++) {
620 pci_bus_read_config_word(nesdev->pcidev->bus,
621 PCI_DEVFN(PCI_SLOT(nesdev->pcidev->devfn),
622 func_index), 0, &vendor_id);
623 if (vendor_id == 0xffff)
626 nes_debug(NES_DBG_INIT, "%s %d functions found for %s.\n", __func__,
627 func_index, pci_name(nesdev->pcidev));
628 nesadapter->adapter_fcn_count = func_index;
635 * nes_reset_adapter_ne020
637 static unsigned int nes_reset_adapter_ne020(struct nes_device *nesdev, u8 *OneG_Mode)
643 u32temp = nes_read32(nesdev->regs+NES_SOFTWARE_RESET);
644 port_count = ((u32temp & 0x00000300) >> 8) + 1;
645 /* TODO: assuming that both SERDES are set the same for now */
646 *OneG_Mode = (u32temp & 0x00003c00) ? 0 : 1;
647 nes_debug(NES_DBG_INIT, "Initial Software Reset = 0x%08X, port_count=%u\n",
648 u32temp, port_count);
650 nes_debug(NES_DBG_INIT, "Running in 1G mode.\n");
651 u32temp &= 0xff00ffc0;
652 switch (port_count) {
654 u32temp |= 0x00ee0000;
657 u32temp |= 0x00cc0000;
660 u32temp |= 0x00000000;
667 /* check and do full reset if needed */
668 if (nes_read_indexed(nesdev, NES_IDX_QP_CONTROL+(PCI_FUNC(nesdev->pcidev->devfn)*8))) {
669 nes_debug(NES_DBG_INIT, "Issuing Full Soft reset = 0x%08X\n", u32temp | 0xd);
670 nes_write32(nesdev->regs+NES_SOFTWARE_RESET, u32temp | 0xd);
673 while (((nes_read32(nesdev->regs+NES_SOFTWARE_RESET) & 0x00000040) == 0) && i++ < 10000)
676 nes_debug(NES_DBG_INIT, "Did not see full soft reset done.\n");
681 while ((nes_read_indexed(nesdev, NES_IDX_INT_CPU_STATUS) != 0x80) && i++ < 10000)
684 printk(KERN_ERR PFX "Internal CPU not ready, status = %02X\n",
685 nes_read_indexed(nesdev, NES_IDX_INT_CPU_STATUS));
691 switch (port_count) {
693 u32temp |= 0x00ee0010;
696 u32temp |= 0x00cc0030;
699 u32temp |= 0x00000030;
703 nes_debug(NES_DBG_INIT, "Issuing Port Soft reset = 0x%08X\n", u32temp | 0xd);
704 nes_write32(nesdev->regs+NES_SOFTWARE_RESET, u32temp | 0xd);
707 while (((nes_read32(nesdev->regs+NES_SOFTWARE_RESET) & 0x00000040) == 0) && i++ < 10000)
710 nes_debug(NES_DBG_INIT, "Did not see port soft reset done.\n");
716 while (((u32temp = (nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_STATUS0)
717 & 0x0000000f)) != 0x0000000f) && i++ < 5000)
720 nes_debug(NES_DBG_INIT, "Serdes 0 not ready, status=%x\n", u32temp);
725 if (port_count > 1) {
727 while (((u32temp = (nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_STATUS1)
728 & 0x0000000f)) != 0x0000000f) && i++ < 5000)
731 nes_debug(NES_DBG_INIT, "Serdes 1 not ready, status=%x\n", u32temp);
743 static int nes_init_serdes(struct nes_device *nesdev, u8 hw_rev, u8 port_count,
744 struct nes_adapter *nesadapter, u8 OneG_Mode)
750 if (hw_rev != NE020_REV) {
752 switch (nesadapter->phy_type[0]) {
753 case NES_PHY_TYPE_CX4:
755 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL0, 0x000FFFAA);
757 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL0, 0x000000FF);
759 case NES_PHY_TYPE_KR:
760 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL0, 0x000000FF);
761 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_EMP0, 0x00000000);
763 case NES_PHY_TYPE_PUMA_1G:
764 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL0, 0x000000FF);
765 sds = nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0);
767 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0, sds);
770 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL0, 0x000000FF);
775 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_HIGHZ_LANE_MODE0, 0x11110000);
781 if (!(OneG_Mode && (nesadapter->phy_type[1] != NES_PHY_TYPE_PUMA_1G)))
782 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL1, 0x000000FF);
784 switch (nesadapter->phy_type[1]) {
785 case NES_PHY_TYPE_ARGUS:
786 case NES_PHY_TYPE_SFP_D:
787 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_EMP0, 0x00000000);
788 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_EMP1, 0x00000000);
790 case NES_PHY_TYPE_CX4:
792 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL1, 0x000FFFAA);
794 case NES_PHY_TYPE_KR:
795 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_EMP1, 0x00000000);
797 case NES_PHY_TYPE_PUMA_1G:
798 sds = nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1);
800 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1, sds);
803 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_HIGHZ_LANE_MODE1, 0x11110000);
804 sds = nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1);
806 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1, sds);
810 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0, 0x00000008);
812 while (((u32temp = (nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_STATUS0)
813 & 0x0000000f)) != 0x0000000f) && i++ < 5000)
816 nes_debug(NES_DBG_PHY, "Init: serdes 0 not ready, status=%x\n", u32temp);
819 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_EMP0, 0x000bdef7);
820 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_DRIVE0, 0x9ce73000);
821 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_MODE0, 0x0ff00000);
822 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_SIGDET0, 0x00000000);
823 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_BYPASS0, 0x00000000);
824 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_LOOPBACK_CONTROL0, 0x00000000);
826 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_EQ_CONTROL0, 0xf0182222);
828 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_EQ_CONTROL0, 0xf0042222);
830 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL0, 0x000000ff);
831 if (port_count > 1) {
833 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1, 0x00000048);
835 while (((u32temp = (nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_STATUS1)
836 & 0x0000000f)) != 0x0000000f) && (i++ < 5000))
839 printk("%s: Init: serdes 1 not ready, status=%x\n", __func__, u32temp);
842 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_EMP1, 0x000bdef7);
843 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_TX_DRIVE1, 0x9ce73000);
844 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_MODE1, 0x0ff00000);
845 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_SIGDET1, 0x00000000);
846 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_BYPASS1, 0x00000000);
847 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_LOOPBACK_CONTROL1, 0x00000000);
848 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_RX_EQ_CONTROL1, 0xf0002222);
849 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_CDR_CONTROL1, 0x000000ff);
858 * Initialize registers for ne020 hardware
860 static void nes_init_csr_ne020(struct nes_device *nesdev, u8 hw_rev, u8 port_count)
864 nes_debug(NES_DBG_INIT, "port_count=%d\n", port_count);
866 nes_write_indexed(nesdev, 0x000001E4, 0x00000007);
867 /* nes_write_indexed(nesdev, 0x000001E8, 0x000208C4); */
868 nes_write_indexed(nesdev, 0x000001E8, 0x00020874);
869 nes_write_indexed(nesdev, 0x000001D8, 0x00048002);
870 /* nes_write_indexed(nesdev, 0x000001D8, 0x0004B002); */
871 nes_write_indexed(nesdev, 0x000001FC, 0x00050005);
872 nes_write_indexed(nesdev, 0x00000600, 0x55555555);
873 nes_write_indexed(nesdev, 0x00000604, 0x55555555);
875 /* TODO: move these MAC register settings to NIC bringup */
876 nes_write_indexed(nesdev, 0x00002000, 0x00000001);
877 nes_write_indexed(nesdev, 0x00002004, 0x00000001);
878 nes_write_indexed(nesdev, 0x00002008, 0x0000FFFF);
879 nes_write_indexed(nesdev, 0x0000200C, 0x00000001);
880 nes_write_indexed(nesdev, 0x00002010, 0x000003c1);
881 nes_write_indexed(nesdev, 0x0000201C, 0x75345678);
882 if (port_count > 1) {
883 nes_write_indexed(nesdev, 0x00002200, 0x00000001);
884 nes_write_indexed(nesdev, 0x00002204, 0x00000001);
885 nes_write_indexed(nesdev, 0x00002208, 0x0000FFFF);
886 nes_write_indexed(nesdev, 0x0000220C, 0x00000001);
887 nes_write_indexed(nesdev, 0x00002210, 0x000003c1);
888 nes_write_indexed(nesdev, 0x0000221C, 0x75345678);
889 nes_write_indexed(nesdev, 0x00000908, 0x20000001);
891 if (port_count > 2) {
892 nes_write_indexed(nesdev, 0x00002400, 0x00000001);
893 nes_write_indexed(nesdev, 0x00002404, 0x00000001);
894 nes_write_indexed(nesdev, 0x00002408, 0x0000FFFF);
895 nes_write_indexed(nesdev, 0x0000240C, 0x00000001);
896 nes_write_indexed(nesdev, 0x00002410, 0x000003c1);
897 nes_write_indexed(nesdev, 0x0000241C, 0x75345678);
898 nes_write_indexed(nesdev, 0x00000910, 0x20000001);
900 nes_write_indexed(nesdev, 0x00002600, 0x00000001);
901 nes_write_indexed(nesdev, 0x00002604, 0x00000001);
902 nes_write_indexed(nesdev, 0x00002608, 0x0000FFFF);
903 nes_write_indexed(nesdev, 0x0000260C, 0x00000001);
904 nes_write_indexed(nesdev, 0x00002610, 0x000003c1);
905 nes_write_indexed(nesdev, 0x0000261C, 0x75345678);
906 nes_write_indexed(nesdev, 0x00000918, 0x20000001);
909 nes_write_indexed(nesdev, 0x00005000, 0x00018000);
910 /* nes_write_indexed(nesdev, 0x00005000, 0x00010000); */
911 nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG1, (wqm_quanta << 1) |
913 nes_write_indexed(nesdev, 0x00005008, 0x1F1F1F1F);
914 nes_write_indexed(nesdev, 0x00005010, 0x1F1F1F1F);
915 nes_write_indexed(nesdev, 0x00005018, 0x1F1F1F1F);
916 nes_write_indexed(nesdev, 0x00005020, 0x1F1F1F1F);
917 nes_write_indexed(nesdev, 0x00006090, 0xFFFFFFFF);
919 /* TODO: move this to code, get from EEPROM */
920 nes_write_indexed(nesdev, 0x00000900, 0x20000001);
921 nes_write_indexed(nesdev, 0x000060C0, 0x0000028e);
922 nes_write_indexed(nesdev, 0x000060C8, 0x00000020);
924 nes_write_indexed(nesdev, 0x000001EC, 0x7b2625a0);
925 /* nes_write_indexed(nesdev, 0x000001EC, 0x5f2625a0); */
927 if (hw_rev != NE020_REV) {
928 u32temp = nes_read_indexed(nesdev, 0x000008e8);
929 u32temp |= 0x80000000;
930 nes_write_indexed(nesdev, 0x000008e8, u32temp);
931 u32temp = nes_read_indexed(nesdev, 0x000021f8);
932 u32temp &= 0x7fffffff;
933 u32temp |= 0x7fff0010;
934 nes_write_indexed(nesdev, 0x000021f8, u32temp);
935 if (port_count > 1) {
936 u32temp = nes_read_indexed(nesdev, 0x000023f8);
937 u32temp &= 0x7fffffff;
938 u32temp |= 0x7fff0010;
939 nes_write_indexed(nesdev, 0x000023f8, u32temp);
946 * nes_destroy_adapter - destroy the adapter structure
948 void nes_destroy_adapter(struct nes_adapter *nesadapter)
950 struct nes_adapter *tmp_adapter;
952 list_for_each_entry(tmp_adapter, &nes_adapter_list, list) {
953 nes_debug(NES_DBG_SHUTDOWN, "Nes Adapter list entry = 0x%p.\n",
957 nesadapter->ref_count--;
958 if (!nesadapter->ref_count) {
959 if (nesadapter->hw_rev == NE020_REV) {
960 del_timer(&nesadapter->mh_timer);
962 del_timer(&nesadapter->lc_timer);
964 list_del(&nesadapter->list);
973 int nes_init_cqp(struct nes_device *nesdev)
975 struct nes_adapter *nesadapter = nesdev->nesadapter;
976 struct nes_hw_cqp_qp_context *cqp_qp_context;
977 struct nes_hw_cqp_wqe *cqp_wqe;
978 struct nes_hw_ceq *ceq;
979 struct nes_hw_ceq *nic_ceq;
980 struct nes_hw_aeq *aeq;
988 /* allocate CQP memory */
989 /* Need to add max_cq to the aeq size once cq overflow checking is added back */
990 /* SQ is 512 byte aligned, others are 256 byte aligned */
991 nesdev->cqp_mem_size = 512 +
992 (sizeof(struct nes_hw_cqp_wqe) * NES_CQP_SQ_SIZE) +
993 (sizeof(struct nes_hw_cqe) * NES_CCQ_SIZE) +
994 max(((u32)sizeof(struct nes_hw_ceqe) * NES_CCEQ_SIZE), (u32)256) +
995 max(((u32)sizeof(struct nes_hw_ceqe) * NES_NIC_CEQ_SIZE), (u32)256) +
996 (sizeof(struct nes_hw_aeqe) * nesadapter->max_qp) +
997 sizeof(struct nes_hw_cqp_qp_context);
999 nesdev->cqp_vbase = pci_zalloc_consistent(nesdev->pcidev,
1000 nesdev->cqp_mem_size,
1001 &nesdev->cqp_pbase);
1002 if (!nesdev->cqp_vbase) {
1003 nes_debug(NES_DBG_INIT, "Unable to allocate memory for host descriptor rings\n");
1007 /* Allocate a twice the number of CQP requests as the SQ size */
1008 nesdev->nes_cqp_requests = kzalloc(sizeof(struct nes_cqp_request) *
1009 2 * NES_CQP_SQ_SIZE, GFP_KERNEL);
1010 if (nesdev->nes_cqp_requests == NULL) {
1011 nes_debug(NES_DBG_INIT, "Unable to allocate memory CQP request entries.\n");
1012 pci_free_consistent(nesdev->pcidev, nesdev->cqp_mem_size, nesdev->cqp.sq_vbase,
1013 nesdev->cqp.sq_pbase);
1017 nes_debug(NES_DBG_INIT, "Allocated CQP structures at %p (phys = %016lX), size = %u.\n",
1018 nesdev->cqp_vbase, (unsigned long)nesdev->cqp_pbase, nesdev->cqp_mem_size);
1020 spin_lock_init(&nesdev->cqp.lock);
1021 init_waitqueue_head(&nesdev->cqp.waitq);
1023 /* Setup Various Structures */
1024 vmem = (void *)(((unsigned long)nesdev->cqp_vbase + (512 - 1)) &
1025 ~(unsigned long)(512 - 1));
1026 pmem = (dma_addr_t)(((unsigned long long)nesdev->cqp_pbase + (512 - 1)) &
1027 ~(unsigned long long)(512 - 1));
1029 nesdev->cqp.sq_vbase = vmem;
1030 nesdev->cqp.sq_pbase = pmem;
1031 nesdev->cqp.sq_size = NES_CQP_SQ_SIZE;
1032 nesdev->cqp.sq_head = 0;
1033 nesdev->cqp.sq_tail = 0;
1034 nesdev->cqp.qp_id = PCI_FUNC(nesdev->pcidev->devfn);
1036 vmem += (sizeof(struct nes_hw_cqp_wqe) * nesdev->cqp.sq_size);
1037 pmem += (sizeof(struct nes_hw_cqp_wqe) * nesdev->cqp.sq_size);
1039 nesdev->ccq.cq_vbase = vmem;
1040 nesdev->ccq.cq_pbase = pmem;
1041 nesdev->ccq.cq_size = NES_CCQ_SIZE;
1042 nesdev->ccq.cq_head = 0;
1043 nesdev->ccq.ce_handler = nes_cqp_ce_handler;
1044 nesdev->ccq.cq_number = PCI_FUNC(nesdev->pcidev->devfn);
1046 vmem += (sizeof(struct nes_hw_cqe) * nesdev->ccq.cq_size);
1047 pmem += (sizeof(struct nes_hw_cqe) * nesdev->ccq.cq_size);
1049 nesdev->ceq_index = PCI_FUNC(nesdev->pcidev->devfn);
1050 ceq = &nesadapter->ceq[nesdev->ceq_index];
1051 ceq->ceq_vbase = vmem;
1052 ceq->ceq_pbase = pmem;
1053 ceq->ceq_size = NES_CCEQ_SIZE;
1056 vmem += max(((u32)sizeof(struct nes_hw_ceqe) * ceq->ceq_size), (u32)256);
1057 pmem += max(((u32)sizeof(struct nes_hw_ceqe) * ceq->ceq_size), (u32)256);
1059 nesdev->nic_ceq_index = PCI_FUNC(nesdev->pcidev->devfn) + 8;
1060 nic_ceq = &nesadapter->ceq[nesdev->nic_ceq_index];
1061 nic_ceq->ceq_vbase = vmem;
1062 nic_ceq->ceq_pbase = pmem;
1063 nic_ceq->ceq_size = NES_NIC_CEQ_SIZE;
1064 nic_ceq->ceq_head = 0;
1066 vmem += max(((u32)sizeof(struct nes_hw_ceqe) * nic_ceq->ceq_size), (u32)256);
1067 pmem += max(((u32)sizeof(struct nes_hw_ceqe) * nic_ceq->ceq_size), (u32)256);
1069 aeq = &nesadapter->aeq[PCI_FUNC(nesdev->pcidev->devfn)];
1070 aeq->aeq_vbase = vmem;
1071 aeq->aeq_pbase = pmem;
1072 aeq->aeq_size = nesadapter->max_qp;
1075 /* Setup QP Context */
1076 vmem += (sizeof(struct nes_hw_aeqe) * aeq->aeq_size);
1077 pmem += (sizeof(struct nes_hw_aeqe) * aeq->aeq_size);
1079 cqp_qp_context = vmem;
1080 cqp_qp_context->context_words[0] =
1081 cpu_to_le32((PCI_FUNC(nesdev->pcidev->devfn) << 12) + (2 << 10));
1082 cqp_qp_context->context_words[1] = 0;
1083 cqp_qp_context->context_words[2] = cpu_to_le32((u32)nesdev->cqp.sq_pbase);
1084 cqp_qp_context->context_words[3] = cpu_to_le32(((u64)nesdev->cqp.sq_pbase) >> 32);
1087 /* Write the address to Create CQP */
1088 if ((sizeof(dma_addr_t) > 4)) {
1089 nes_write_indexed(nesdev,
1090 NES_IDX_CREATE_CQP_HIGH + (PCI_FUNC(nesdev->pcidev->devfn) * 8),
1093 nes_write_indexed(nesdev,
1094 NES_IDX_CREATE_CQP_HIGH + (PCI_FUNC(nesdev->pcidev->devfn) * 8), 0);
1096 nes_write_indexed(nesdev,
1097 NES_IDX_CREATE_CQP_LOW + (PCI_FUNC(nesdev->pcidev->devfn) * 8),
1100 INIT_LIST_HEAD(&nesdev->cqp_avail_reqs);
1101 INIT_LIST_HEAD(&nesdev->cqp_pending_reqs);
1103 for (count = 0; count < 2*NES_CQP_SQ_SIZE; count++) {
1104 init_waitqueue_head(&nesdev->nes_cqp_requests[count].waitq);
1105 list_add_tail(&nesdev->nes_cqp_requests[count].list, &nesdev->cqp_avail_reqs);
1108 /* Write Create CCQ WQE */
1109 cqp_head = nesdev->cqp.sq_head++;
1110 cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
1111 nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
1112 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX,
1113 (NES_CQP_CREATE_CQ | NES_CQP_CQ_CEQ_VALID |
1114 NES_CQP_CQ_CHK_OVERFLOW | ((u32)nesdev->ccq.cq_size << 16)));
1115 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX,
1116 (nesdev->ccq.cq_number |
1117 ((u32)nesdev->ceq_index << 16)));
1118 u64temp = (u64)nesdev->ccq.cq_pbase;
1119 set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_CQ_WQE_PBL_LOW_IDX, u64temp);
1120 cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_HIGH_IDX] = 0;
1121 u64temp = (unsigned long)&nesdev->ccq;
1122 cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_LOW_IDX] =
1123 cpu_to_le32((u32)(u64temp >> 1));
1124 cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_HIGH_IDX] =
1125 cpu_to_le32(((u32)((u64temp) >> 33)) & 0x7FFFFFFF);
1126 cqp_wqe->wqe_words[NES_CQP_CQ_WQE_DOORBELL_INDEX_HIGH_IDX] = 0;
1128 /* Write Create CEQ WQE */
1129 cqp_head = nesdev->cqp.sq_head++;
1130 cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
1131 nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
1132 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX,
1133 (NES_CQP_CREATE_CEQ + ((u32)nesdev->ceq_index << 8)));
1134 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_CEQ_WQE_ELEMENT_COUNT_IDX, ceq->ceq_size);
1135 u64temp = (u64)ceq->ceq_pbase;
1136 set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_CQ_WQE_PBL_LOW_IDX, u64temp);
1138 /* Write Create AEQ WQE */
1139 cqp_head = nesdev->cqp.sq_head++;
1140 cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
1141 nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
1142 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX,
1143 (NES_CQP_CREATE_AEQ + ((u32)PCI_FUNC(nesdev->pcidev->devfn) << 8)));
1144 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_AEQ_WQE_ELEMENT_COUNT_IDX, aeq->aeq_size);
1145 u64temp = (u64)aeq->aeq_pbase;
1146 set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_CQ_WQE_PBL_LOW_IDX, u64temp);
1148 /* Write Create NIC CEQ WQE */
1149 cqp_head = nesdev->cqp.sq_head++;
1150 cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
1151 nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
1152 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX,
1153 (NES_CQP_CREATE_CEQ + ((u32)nesdev->nic_ceq_index << 8)));
1154 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_CEQ_WQE_ELEMENT_COUNT_IDX, nic_ceq->ceq_size);
1155 u64temp = (u64)nic_ceq->ceq_pbase;
1156 set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_CQ_WQE_PBL_LOW_IDX, u64temp);
1158 /* Poll until CCQP done */
1161 if (count++ > 1000) {
1162 printk(KERN_ERR PFX "Error creating CQP\n");
1163 pci_free_consistent(nesdev->pcidev, nesdev->cqp_mem_size,
1164 nesdev->cqp_vbase, nesdev->cqp_pbase);
1168 } while (!(nes_read_indexed(nesdev,
1169 NES_IDX_QP_CONTROL + (PCI_FUNC(nesdev->pcidev->devfn) * 8)) & (1 << 8)));
1171 nes_debug(NES_DBG_INIT, "CQP Status = 0x%08X\n", nes_read_indexed(nesdev,
1172 NES_IDX_QP_CONTROL+(PCI_FUNC(nesdev->pcidev->devfn)*8)));
1174 u32temp = 0x04800000;
1175 nes_write32(nesdev->regs+NES_WQE_ALLOC, u32temp | nesdev->cqp.qp_id);
1177 /* wait for the CCQ, CEQ, and AEQ to get created */
1180 if (count++ > 1000) {
1181 printk(KERN_ERR PFX "Error creating CCQ, CEQ, and AEQ\n");
1182 pci_free_consistent(nesdev->pcidev, nesdev->cqp_mem_size,
1183 nesdev->cqp_vbase, nesdev->cqp_pbase);
1187 } while (((nes_read_indexed(nesdev,
1188 NES_IDX_QP_CONTROL+(PCI_FUNC(nesdev->pcidev->devfn)*8)) & (15<<8)) != (15<<8)));
1190 /* dump the QP status value */
1191 nes_debug(NES_DBG_INIT, "QP Status = 0x%08X\n", nes_read_indexed(nesdev,
1192 NES_IDX_QP_CONTROL+(PCI_FUNC(nesdev->pcidev->devfn)*8)));
1194 nesdev->cqp.sq_tail++;
1203 int nes_destroy_cqp(struct nes_device *nesdev)
1205 struct nes_hw_cqp_wqe *cqp_wqe;
1208 unsigned long flags;
1214 } while (!(nesdev->cqp.sq_head == nesdev->cqp.sq_tail));
1217 nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_RESET |
1218 nesdev->ccq.cq_number);
1220 /* Disable device interrupts */
1221 nes_write32(nesdev->regs+NES_INT_MASK, 0x7fffffff);
1223 spin_lock_irqsave(&nesdev->cqp.lock, flags);
1225 /* Destroy the AEQ */
1226 cqp_head = nesdev->cqp.sq_head++;
1227 nesdev->cqp.sq_head &= nesdev->cqp.sq_size-1;
1228 cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
1229 cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(NES_CQP_DESTROY_AEQ |
1230 ((u32)PCI_FUNC(nesdev->pcidev->devfn) << 8));
1231 cqp_wqe->wqe_words[NES_CQP_WQE_COMP_CTX_HIGH_IDX] = 0;
1233 /* Destroy the NIC CEQ */
1234 cqp_head = nesdev->cqp.sq_head++;
1235 nesdev->cqp.sq_head &= nesdev->cqp.sq_size-1;
1236 cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
1237 cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(NES_CQP_DESTROY_CEQ |
1238 ((u32)nesdev->nic_ceq_index << 8));
1240 /* Destroy the CEQ */
1241 cqp_head = nesdev->cqp.sq_head++;
1242 nesdev->cqp.sq_head &= nesdev->cqp.sq_size-1;
1243 cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
1244 cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(NES_CQP_DESTROY_CEQ |
1245 (nesdev->ceq_index << 8));
1247 /* Destroy the CCQ */
1248 cqp_head = nesdev->cqp.sq_head++;
1249 nesdev->cqp.sq_head &= nesdev->cqp.sq_size-1;
1250 cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
1251 cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(NES_CQP_DESTROY_CQ);
1252 cqp_wqe->wqe_words[NES_CQP_WQE_ID_IDX] = cpu_to_le32(nesdev->ccq.cq_number |
1253 ((u32)nesdev->ceq_index << 16));
1256 cqp_head = nesdev->cqp.sq_head++;
1257 nesdev->cqp.sq_head &= nesdev->cqp.sq_size-1;
1258 cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
1259 cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(NES_CQP_DESTROY_QP |
1260 NES_CQP_QP_TYPE_CQP);
1261 cqp_wqe->wqe_words[NES_CQP_WQE_ID_IDX] = cpu_to_le32(nesdev->cqp.qp_id);
1264 /* Ring doorbell (5 WQEs) */
1265 nes_write32(nesdev->regs+NES_WQE_ALLOC, 0x05800000 | nesdev->cqp.qp_id);
1267 spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
1269 /* wait for the CCQ, CEQ, and AEQ to get destroyed */
1272 if (count++ > 1000) {
1273 printk(KERN_ERR PFX "Function%d: Error destroying CCQ, CEQ, and AEQ\n",
1274 PCI_FUNC(nesdev->pcidev->devfn));
1278 } while (((nes_read_indexed(nesdev,
1279 NES_IDX_QP_CONTROL + (PCI_FUNC(nesdev->pcidev->devfn)*8)) & (15 << 8)) != 0));
1281 /* dump the QP status value */
1282 nes_debug(NES_DBG_SHUTDOWN, "Function%d: QP Status = 0x%08X\n",
1283 PCI_FUNC(nesdev->pcidev->devfn),
1284 nes_read_indexed(nesdev,
1285 NES_IDX_QP_CONTROL+(PCI_FUNC(nesdev->pcidev->devfn)*8)));
1287 kfree(nesdev->nes_cqp_requests);
1289 /* Free the control structures */
1290 pci_free_consistent(nesdev->pcidev, nesdev->cqp_mem_size, nesdev->cqp.sq_vbase,
1291 nesdev->cqp.sq_pbase);
1300 static int nes_init_1g_phy(struct nes_device *nesdev, u8 phy_type, u8 phy_index)
1306 nes_read_1G_phy_reg(nesdev, 1, phy_index, &phy_data);
1307 nes_write_1G_phy_reg(nesdev, 23, phy_index, 0xb000);
1310 nes_write_1G_phy_reg(nesdev, 0, phy_index, 0x8000);
1314 nes_read_1G_phy_reg(nesdev, 0, phy_index, &phy_data);
1315 if (counter++ > 100) {
1319 } while (phy_data & 0x8000);
1321 /* Setting no phy loopback */
1324 nes_write_1G_phy_reg(nesdev, 0, phy_index, phy_data);
1325 nes_read_1G_phy_reg(nesdev, 0, phy_index, &phy_data);
1326 nes_read_1G_phy_reg(nesdev, 0x17, phy_index, &phy_data);
1327 nes_read_1G_phy_reg(nesdev, 0x1e, phy_index, &phy_data);
1329 /* Setting the interrupt mask */
1330 nes_read_1G_phy_reg(nesdev, 0x19, phy_index, &phy_data);
1331 nes_write_1G_phy_reg(nesdev, 0x19, phy_index, 0xffee);
1332 nes_read_1G_phy_reg(nesdev, 0x19, phy_index, &phy_data);
1334 /* turning on flow control */
1335 nes_read_1G_phy_reg(nesdev, 4, phy_index, &phy_data);
1336 nes_write_1G_phy_reg(nesdev, 4, phy_index, (phy_data & ~(0x03E0)) | 0xc00);
1337 nes_read_1G_phy_reg(nesdev, 4, phy_index, &phy_data);
1339 /* Clear Half duplex */
1340 nes_read_1G_phy_reg(nesdev, 9, phy_index, &phy_data);
1341 nes_write_1G_phy_reg(nesdev, 9, phy_index, phy_data & ~(0x0100));
1342 nes_read_1G_phy_reg(nesdev, 9, phy_index, &phy_data);
1344 nes_read_1G_phy_reg(nesdev, 0, phy_index, &phy_data);
1345 nes_write_1G_phy_reg(nesdev, 0, phy_index, phy_data | 0x0300);
1354 static int nes_init_2025_phy(struct nes_device *nesdev, u8 phy_type, u8 phy_index)
1356 u32 temp_phy_data = 0;
1357 u32 temp_phy_data2 = 0;
1360 u32 mac_index = nesdev->mac_index;
1362 unsigned int first_attempt = 1;
1364 /* Check firmware heartbeat */
1365 nes_read_10G_phy_reg(nesdev, phy_index, 0x3, 0xd7ee);
1366 temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
1368 nes_read_10G_phy_reg(nesdev, phy_index, 0x3, 0xd7ee);
1369 temp_phy_data2 = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
1371 if (temp_phy_data != temp_phy_data2) {
1372 nes_read_10G_phy_reg(nesdev, phy_index, 0x3, 0xd7fd);
1373 temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
1374 if ((temp_phy_data & 0xff) > 0x20)
1376 printk(PFX "Reinitialize external PHY\n");
1379 /* no heartbeat, configure the PHY */
1380 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0x0000, 0x8000);
1381 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc300, 0x0000);
1382 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc316, 0x000A);
1383 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc318, 0x0052);
1386 case NES_PHY_TYPE_ARGUS:
1387 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc316, 0x000A);
1388 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc318, 0x0052);
1389 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc302, 0x000C);
1390 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc319, 0x0008);
1391 nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0027, 0x0001);
1392 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc31a, 0x0098);
1393 nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0026, 0x0E00);
1396 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd006, 0x0007);
1397 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd007, 0x000A);
1398 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd008, 0x0009);
1401 case NES_PHY_TYPE_SFP_D:
1402 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc316, 0x000A);
1403 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc318, 0x0052);
1404 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc302, 0x0004);
1405 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc319, 0x0038);
1406 nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0027, 0x0013);
1407 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc31a, 0x0098);
1408 nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0026, 0x0E00);
1411 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd006, 0x0007);
1412 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd007, 0x000A);
1413 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd008, 0x0009);
1416 case NES_PHY_TYPE_KR:
1417 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc316, 0x000A);
1418 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc318, 0x0052);
1419 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc302, 0x000C);
1420 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc319, 0x0010);
1421 nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0027, 0x0013);
1422 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc31a, 0x0080);
1423 nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0026, 0x0E00);
1426 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd006, 0x000B);
1427 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd007, 0x0003);
1428 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd008, 0x0004);
1430 nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0022, 0x406D);
1431 nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0023, 0x0020);
1435 nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0x0028, 0xA528);
1437 /* Bring PHY out of reset */
1438 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc300, 0x0002);
1440 /* Check for heartbeat */
1443 nes_read_10G_phy_reg(nesdev, phy_index, 0x3, 0xd7ee);
1444 temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
1446 if (counter++ > 150) {
1447 printk(PFX "No PHY heartbeat\n");
1451 nes_read_10G_phy_reg(nesdev, phy_index, 0x3, 0xd7ee);
1452 temp_phy_data2 = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
1453 } while ((temp_phy_data2 == temp_phy_data));
1455 /* wait for tracking */
1458 nes_read_10G_phy_reg(nesdev, phy_index, 0x3, 0xd7fd);
1459 temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
1460 if (counter++ > 300) {
1461 if (((temp_phy_data & 0xff) == 0x0) && first_attempt) {
1464 /* reset AMCC PHY and try again */
1465 nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0xe854, 0x00c0);
1466 nes_write_10G_phy_reg(nesdev, phy_index, 0x3, 0xe854, 0x0040);
1474 } while ((temp_phy_data & 0xff) < 0x30);
1476 /* setup signal integrity */
1477 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xd003, 0x0000);
1478 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xF00D, 0x00FE);
1479 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xF00E, 0x0032);
1480 if (phy_type == NES_PHY_TYPE_KR) {
1481 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xF00F, 0x000C);
1483 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xF00F, 0x0002);
1484 nes_write_10G_phy_reg(nesdev, phy_index, 0x1, 0xc314, 0x0063);
1488 sds = nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0 + mac_index * 0x200);
1490 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0 + mac_index * 0x200, sds);
1492 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL0 + mac_index * 0x200, sds);
1495 while (((nes_read32(nesdev->regs + NES_SOFTWARE_RESET) & 0x00000040) != 0x00000040)
1496 && (counter++ < 5000))
1506 int nes_init_phy(struct nes_device *nesdev)
1508 struct nes_adapter *nesadapter = nesdev->nesadapter;
1509 u32 mac_index = nesdev->mac_index;
1511 unsigned long flags;
1512 u8 phy_type = nesadapter->phy_type[mac_index];
1513 u8 phy_index = nesadapter->phy_index[mac_index];
1516 tx_config = nes_read_indexed(nesdev, NES_IDX_MAC_TX_CONFIG);
1517 if (phy_type == NES_PHY_TYPE_1G) {
1518 /* setup 1G MDIO operation */
1519 tx_config &= 0xFFFFFFE3;
1522 /* setup 10G MDIO operation */
1523 tx_config &= 0xFFFFFFE3;
1526 nes_write_indexed(nesdev, NES_IDX_MAC_TX_CONFIG, tx_config);
1528 spin_lock_irqsave(&nesdev->nesadapter->phy_lock, flags);
1531 case NES_PHY_TYPE_1G:
1532 ret = nes_init_1g_phy(nesdev, phy_type, phy_index);
1534 case NES_PHY_TYPE_ARGUS:
1535 case NES_PHY_TYPE_SFP_D:
1536 case NES_PHY_TYPE_KR:
1537 ret = nes_init_2025_phy(nesdev, phy_type, phy_index);
1541 spin_unlock_irqrestore(&nesdev->nesadapter->phy_lock, flags);
1548 * nes_replenish_nic_rq
1550 static void nes_replenish_nic_rq(struct nes_vnic *nesvnic)
1552 unsigned long flags;
1553 dma_addr_t bus_address;
1554 struct sk_buff *skb;
1555 struct nes_hw_nic_rq_wqe *nic_rqe;
1556 struct nes_hw_nic *nesnic;
1557 struct nes_device *nesdev;
1558 struct nes_rskb_cb *cb;
1559 u32 rx_wqes_posted = 0;
1561 nesnic = &nesvnic->nic;
1562 nesdev = nesvnic->nesdev;
1563 spin_lock_irqsave(&nesnic->rq_lock, flags);
1564 if (nesnic->replenishing_rq !=0) {
1565 if (((nesnic->rq_size-1) == atomic_read(&nesvnic->rx_skbs_needed)) &&
1566 (atomic_read(&nesvnic->rx_skb_timer_running) == 0)) {
1567 atomic_set(&nesvnic->rx_skb_timer_running, 1);
1568 spin_unlock_irqrestore(&nesnic->rq_lock, flags);
1569 nesvnic->rq_wqes_timer.expires = jiffies + (HZ/2); /* 1/2 second */
1570 add_timer(&nesvnic->rq_wqes_timer);
1572 spin_unlock_irqrestore(&nesnic->rq_lock, flags);
1575 nesnic->replenishing_rq = 1;
1576 spin_unlock_irqrestore(&nesnic->rq_lock, flags);
1578 skb = dev_alloc_skb(nesvnic->max_frame_size);
1580 skb->dev = nesvnic->netdev;
1582 bus_address = pci_map_single(nesdev->pcidev,
1583 skb->data, nesvnic->max_frame_size, PCI_DMA_FROMDEVICE);
1584 cb = (struct nes_rskb_cb *)&skb->cb[0];
1585 cb->busaddr = bus_address;
1586 cb->maplen = nesvnic->max_frame_size;
1588 nic_rqe = &nesnic->rq_vbase[nesvnic->nic.rq_head];
1589 nic_rqe->wqe_words[NES_NIC_RQ_WQE_LENGTH_1_0_IDX] =
1590 cpu_to_le32(nesvnic->max_frame_size);
1591 nic_rqe->wqe_words[NES_NIC_RQ_WQE_LENGTH_3_2_IDX] = 0;
1592 nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_LOW_IDX] =
1593 cpu_to_le32((u32)bus_address);
1594 nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_HIGH_IDX] =
1595 cpu_to_le32((u32)((u64)bus_address >> 32));
1596 nesnic->rx_skb[nesnic->rq_head] = skb;
1598 nesnic->rq_head &= nesnic->rq_size - 1;
1599 atomic_dec(&nesvnic->rx_skbs_needed);
1601 if (++rx_wqes_posted == 255) {
1602 nes_write32(nesdev->regs+NES_WQE_ALLOC, (rx_wqes_posted << 24) | nesnic->qp_id);
1606 spin_lock_irqsave(&nesnic->rq_lock, flags);
1607 if (((nesnic->rq_size-1) == atomic_read(&nesvnic->rx_skbs_needed)) &&
1608 (atomic_read(&nesvnic->rx_skb_timer_running) == 0)) {
1609 atomic_set(&nesvnic->rx_skb_timer_running, 1);
1610 spin_unlock_irqrestore(&nesnic->rq_lock, flags);
1611 nesvnic->rq_wqes_timer.expires = jiffies + (HZ/2); /* 1/2 second */
1612 add_timer(&nesvnic->rq_wqes_timer);
1614 spin_unlock_irqrestore(&nesnic->rq_lock, flags);
1617 } while (atomic_read(&nesvnic->rx_skbs_needed));
1620 nes_write32(nesdev->regs+NES_WQE_ALLOC, (rx_wqes_posted << 24) | nesnic->qp_id);
1621 nesnic->replenishing_rq = 0;
1626 * nes_rq_wqes_timeout
1628 static void nes_rq_wqes_timeout(unsigned long parm)
1630 struct nes_vnic *nesvnic = (struct nes_vnic *)parm;
1631 printk("%s: Timer fired.\n", __func__);
1632 atomic_set(&nesvnic->rx_skb_timer_running, 0);
1633 if (atomic_read(&nesvnic->rx_skbs_needed))
1634 nes_replenish_nic_rq(nesvnic);
1641 int nes_init_nic_qp(struct nes_device *nesdev, struct net_device *netdev)
1643 struct nes_hw_cqp_wqe *cqp_wqe;
1644 struct nes_hw_nic_sq_wqe *nic_sqe;
1645 struct nes_hw_nic_qp_context *nic_context;
1646 struct sk_buff *skb;
1647 struct nes_hw_nic_rq_wqe *nic_rqe;
1648 struct nes_vnic *nesvnic = netdev_priv(netdev);
1649 unsigned long flags;
1657 struct nes_rskb_cb *cb;
1660 /* Allocate fragment, SQ, RQ, and CQ; Reuse CEQ based on the PCI function */
1661 nesvnic->nic_mem_size = 256 +
1662 (NES_NIC_WQ_SIZE * sizeof(struct nes_first_frag)) +
1663 (NES_NIC_WQ_SIZE * sizeof(struct nes_hw_nic_sq_wqe)) +
1664 (NES_NIC_WQ_SIZE * sizeof(struct nes_hw_nic_rq_wqe)) +
1665 (NES_NIC_WQ_SIZE * 2 * sizeof(struct nes_hw_nic_cqe)) +
1666 sizeof(struct nes_hw_nic_qp_context);
1668 nesvnic->nic_vbase = pci_zalloc_consistent(nesdev->pcidev,
1669 nesvnic->nic_mem_size,
1670 &nesvnic->nic_pbase);
1671 if (!nesvnic->nic_vbase) {
1672 nes_debug(NES_DBG_INIT, "Unable to allocate memory for NIC host descriptor rings\n");
1675 nes_debug(NES_DBG_INIT, "Allocated NIC QP structures at %p (phys = %016lX), size = %u.\n",
1676 nesvnic->nic_vbase, (unsigned long)nesvnic->nic_pbase, nesvnic->nic_mem_size);
1678 vmem = (void *)(((unsigned long)nesvnic->nic_vbase + (256 - 1)) &
1679 ~(unsigned long)(256 - 1));
1680 pmem = (dma_addr_t)(((unsigned long long)nesvnic->nic_pbase + (256 - 1)) &
1681 ~(unsigned long long)(256 - 1));
1683 /* Setup the first Fragment buffers */
1684 nesvnic->nic.first_frag_vbase = vmem;
1686 for (counter = 0; counter < NES_NIC_WQ_SIZE; counter++) {
1687 nesvnic->nic.frag_paddr[counter] = pmem;
1688 pmem += sizeof(struct nes_first_frag);
1692 vmem += (NES_NIC_WQ_SIZE * sizeof(struct nes_first_frag));
1694 nesvnic->nic.sq_vbase = (void *)vmem;
1695 nesvnic->nic.sq_pbase = pmem;
1696 nesvnic->nic.sq_head = 0;
1697 nesvnic->nic.sq_tail = 0;
1698 nesvnic->nic.sq_size = NES_NIC_WQ_SIZE;
1699 for (counter = 0; counter < NES_NIC_WQ_SIZE; counter++) {
1700 nic_sqe = &nesvnic->nic.sq_vbase[counter];
1701 nic_sqe->wqe_words[NES_NIC_SQ_WQE_MISC_IDX] =
1702 cpu_to_le32(NES_NIC_SQ_WQE_DISABLE_CHKSUM |
1703 NES_NIC_SQ_WQE_COMPLETION);
1704 nic_sqe->wqe_words[NES_NIC_SQ_WQE_LENGTH_0_TAG_IDX] =
1705 cpu_to_le32((u32)NES_FIRST_FRAG_SIZE << 16);
1706 nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_LOW_IDX] =
1707 cpu_to_le32((u32)nesvnic->nic.frag_paddr[counter]);
1708 nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_HIGH_IDX] =
1709 cpu_to_le32((u32)((u64)nesvnic->nic.frag_paddr[counter] >> 32));
1712 nesvnic->get_cqp_request = nes_get_cqp_request;
1713 nesvnic->post_cqp_request = nes_post_cqp_request;
1714 nesvnic->mcrq_mcast_filter = NULL;
1716 spin_lock_init(&nesvnic->nic.rq_lock);
1719 vmem += (NES_NIC_WQ_SIZE * sizeof(struct nes_hw_nic_sq_wqe));
1720 pmem += (NES_NIC_WQ_SIZE * sizeof(struct nes_hw_nic_sq_wqe));
1723 nesvnic->nic.rq_vbase = vmem;
1724 nesvnic->nic.rq_pbase = pmem;
1725 nesvnic->nic.rq_head = 0;
1726 nesvnic->nic.rq_tail = 0;
1727 nesvnic->nic.rq_size = NES_NIC_WQ_SIZE;
1730 vmem += (NES_NIC_WQ_SIZE * sizeof(struct nes_hw_nic_rq_wqe));
1731 pmem += (NES_NIC_WQ_SIZE * sizeof(struct nes_hw_nic_rq_wqe));
1733 if (nesdev->nesadapter->netdev_count > 2)
1734 nesvnic->mcrq_qp_id = nesvnic->nic_index + 32;
1736 nesvnic->mcrq_qp_id = nesvnic->nic.qp_id + 4;
1738 nesvnic->nic_cq.cq_vbase = vmem;
1739 nesvnic->nic_cq.cq_pbase = pmem;
1740 nesvnic->nic_cq.cq_head = 0;
1741 nesvnic->nic_cq.cq_size = NES_NIC_WQ_SIZE * 2;
1743 nesvnic->nic_cq.ce_handler = nes_nic_napi_ce_handler;
1745 /* Send CreateCQ request to CQP */
1746 spin_lock_irqsave(&nesdev->cqp.lock, flags);
1747 cqp_head = nesdev->cqp.sq_head;
1749 cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
1750 nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
1752 cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(
1753 NES_CQP_CREATE_CQ | NES_CQP_CQ_CEQ_VALID |
1754 ((u32)nesvnic->nic_cq.cq_size << 16));
1755 cqp_wqe->wqe_words[NES_CQP_WQE_ID_IDX] = cpu_to_le32(
1756 nesvnic->nic_cq.cq_number | ((u32)nesdev->nic_ceq_index << 16));
1757 u64temp = (u64)nesvnic->nic_cq.cq_pbase;
1758 set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_CQ_WQE_PBL_LOW_IDX, u64temp);
1759 cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_HIGH_IDX] = 0;
1760 u64temp = (unsigned long)&nesvnic->nic_cq;
1761 cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_LOW_IDX] = cpu_to_le32((u32)(u64temp >> 1));
1762 cqp_wqe->wqe_words[NES_CQP_CQ_WQE_CQ_CONTEXT_HIGH_IDX] =
1763 cpu_to_le32(((u32)((u64temp) >> 33)) & 0x7FFFFFFF);
1764 cqp_wqe->wqe_words[NES_CQP_CQ_WQE_DOORBELL_INDEX_HIGH_IDX] = 0;
1765 if (++cqp_head >= nesdev->cqp.sq_size)
1767 cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
1768 nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
1770 /* Send CreateQP request to CQP */
1771 nic_context = (void *)(&nesvnic->nic_cq.cq_vbase[nesvnic->nic_cq.cq_size]);
1772 nic_context->context_words[NES_NIC_CTX_MISC_IDX] =
1773 cpu_to_le32((u32)NES_NIC_CTX_SIZE |
1774 ((u32)PCI_FUNC(nesdev->pcidev->devfn) << 12));
1775 nes_debug(NES_DBG_INIT, "RX_WINDOW_BUFFER_PAGE_TABLE_SIZE = 0x%08X, RX_WINDOW_BUFFER_SIZE = 0x%08X\n",
1776 nes_read_indexed(nesdev, NES_IDX_RX_WINDOW_BUFFER_PAGE_TABLE_SIZE),
1777 nes_read_indexed(nesdev, NES_IDX_RX_WINDOW_BUFFER_SIZE));
1778 if (nes_read_indexed(nesdev, NES_IDX_RX_WINDOW_BUFFER_SIZE) != 0) {
1779 nic_context->context_words[NES_NIC_CTX_MISC_IDX] |= cpu_to_le32(NES_NIC_BACK_STORE);
1782 u64temp = (u64)nesvnic->nic.sq_pbase;
1783 nic_context->context_words[NES_NIC_CTX_SQ_LOW_IDX] = cpu_to_le32((u32)u64temp);
1784 nic_context->context_words[NES_NIC_CTX_SQ_HIGH_IDX] = cpu_to_le32((u32)(u64temp >> 32));
1785 u64temp = (u64)nesvnic->nic.rq_pbase;
1786 nic_context->context_words[NES_NIC_CTX_RQ_LOW_IDX] = cpu_to_le32((u32)u64temp);
1787 nic_context->context_words[NES_NIC_CTX_RQ_HIGH_IDX] = cpu_to_le32((u32)(u64temp >> 32));
1789 cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(NES_CQP_CREATE_QP |
1790 NES_CQP_QP_TYPE_NIC);
1791 cqp_wqe->wqe_words[NES_CQP_WQE_ID_IDX] = cpu_to_le32(nesvnic->nic.qp_id);
1792 u64temp = (u64)nesvnic->nic_cq.cq_pbase +
1793 (nesvnic->nic_cq.cq_size * sizeof(struct nes_hw_nic_cqe));
1794 set_wqe_64bit_value(cqp_wqe->wqe_words, NES_CQP_QP_WQE_CONTEXT_LOW_IDX, u64temp);
1796 if (++cqp_head >= nesdev->cqp.sq_size)
1798 nesdev->cqp.sq_head = cqp_head;
1802 /* Ring doorbell (2 WQEs) */
1803 nes_write32(nesdev->regs+NES_WQE_ALLOC, 0x02800000 | nesdev->cqp.qp_id);
1805 spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
1806 nes_debug(NES_DBG_INIT, "Waiting for create NIC QP%u to complete.\n",
1807 nesvnic->nic.qp_id);
1809 ret = wait_event_timeout(nesdev->cqp.waitq, (nesdev->cqp.sq_tail == cqp_head),
1811 nes_debug(NES_DBG_INIT, "Create NIC QP%u completed, wait_event_timeout ret = %u.\n",
1812 nesvnic->nic.qp_id, ret);
1814 nes_debug(NES_DBG_INIT, "NIC QP%u create timeout expired\n", nesvnic->nic.qp_id);
1815 pci_free_consistent(nesdev->pcidev, nesvnic->nic_mem_size, nesvnic->nic_vbase,
1816 nesvnic->nic_pbase);
1820 /* Populate the RQ */
1821 for (counter = 0; counter < (NES_NIC_WQ_SIZE - 1); counter++) {
1822 skb = dev_alloc_skb(nesvnic->max_frame_size);
1824 nes_debug(NES_DBG_INIT, "%s: out of memory for receive skb\n", netdev->name);
1826 nes_destroy_nic_qp(nesvnic);
1832 pmem = pci_map_single(nesdev->pcidev, skb->data,
1833 nesvnic->max_frame_size, PCI_DMA_FROMDEVICE);
1834 cb = (struct nes_rskb_cb *)&skb->cb[0];
1836 cb->maplen = nesvnic->max_frame_size;
1838 nic_rqe = &nesvnic->nic.rq_vbase[counter];
1839 nic_rqe->wqe_words[NES_NIC_RQ_WQE_LENGTH_1_0_IDX] = cpu_to_le32(nesvnic->max_frame_size);
1840 nic_rqe->wqe_words[NES_NIC_RQ_WQE_LENGTH_3_2_IDX] = 0;
1841 nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_LOW_IDX] = cpu_to_le32((u32)pmem);
1842 nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_HIGH_IDX] = cpu_to_le32((u32)((u64)pmem >> 32));
1843 nesvnic->nic.rx_skb[counter] = skb;
1846 wqe_count = NES_NIC_WQ_SIZE - 1;
1847 nesvnic->nic.rq_head = wqe_count;
1850 counter = min(wqe_count, ((u32)255));
1851 wqe_count -= counter;
1852 nes_write32(nesdev->regs+NES_WQE_ALLOC, (counter << 24) | nesvnic->nic.qp_id);
1853 } while (wqe_count);
1854 init_timer(&nesvnic->rq_wqes_timer);
1855 nesvnic->rq_wqes_timer.function = nes_rq_wqes_timeout;
1856 nesvnic->rq_wqes_timer.data = (unsigned long)nesvnic;
1857 nes_debug(NES_DBG_INIT, "NAPI support Enabled\n");
1858 if (nesdev->nesadapter->et_use_adaptive_rx_coalesce)
1860 nes_nic_init_timer(nesdev);
1861 if (netdev->mtu > 1500)
1863 nes_nic_init_timer_defaults(nesdev, jumbomode);
1865 if ((nesdev->nesadapter->allow_unaligned_fpdus) &&
1866 (nes_init_mgt_qp(nesdev, netdev, nesvnic))) {
1867 nes_debug(NES_DBG_INIT, "%s: Out of memory for pau nic\n", netdev->name);
1868 nes_destroy_nic_qp(nesvnic);
1877 * nes_destroy_nic_qp
1879 void nes_destroy_nic_qp(struct nes_vnic *nesvnic)
1882 dma_addr_t bus_address;
1883 struct nes_device *nesdev = nesvnic->nesdev;
1884 struct nes_hw_cqp_wqe *cqp_wqe;
1885 struct nes_hw_nic_sq_wqe *nic_sqe;
1886 __le16 *wqe_fragment_length;
1887 u16 wqe_fragment_index;
1890 unsigned long flags;
1891 struct sk_buff *rx_skb;
1892 struct nes_rskb_cb *cb;
1895 if (nesdev->nesadapter->allow_unaligned_fpdus)
1896 nes_destroy_mgt(nesvnic);
1898 /* clear wqe stall before destroying NIC QP */
1899 wqm_cfg0 = nes_read_indexed(nesdev, NES_IDX_WQM_CONFIG0);
1900 nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG0, wqm_cfg0 & 0xFFFF7FFF);
1902 /* Free remaining NIC receive buffers */
1903 while (nesvnic->nic.rq_head != nesvnic->nic.rq_tail) {
1904 rx_skb = nesvnic->nic.rx_skb[nesvnic->nic.rq_tail];
1905 cb = (struct nes_rskb_cb *)&rx_skb->cb[0];
1906 pci_unmap_single(nesdev->pcidev, cb->busaddr, cb->maplen,
1907 PCI_DMA_FROMDEVICE);
1909 dev_kfree_skb(nesvnic->nic.rx_skb[nesvnic->nic.rq_tail++]);
1910 nesvnic->nic.rq_tail &= (nesvnic->nic.rq_size - 1);
1913 /* Free remaining NIC transmit buffers */
1914 while (nesvnic->nic.sq_head != nesvnic->nic.sq_tail) {
1915 nic_sqe = &nesvnic->nic.sq_vbase[nesvnic->nic.sq_tail];
1916 wqe_fragment_index = 1;
1917 wqe_fragment_length = (__le16 *)
1918 &nic_sqe->wqe_words[NES_NIC_SQ_WQE_LENGTH_0_TAG_IDX];
1919 /* bump past the vlan tag */
1920 wqe_fragment_length++;
1921 if (le16_to_cpu(wqe_fragment_length[wqe_fragment_index]) != 0) {
1922 u64temp = (u64)le32_to_cpu(
1923 nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_LOW_IDX+
1924 wqe_fragment_index*2]);
1925 u64temp += ((u64)le32_to_cpu(
1926 nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_HIGH_IDX
1927 + wqe_fragment_index*2]))<<32;
1928 bus_address = (dma_addr_t)u64temp;
1929 if (test_and_clear_bit(nesvnic->nic.sq_tail,
1930 nesvnic->nic.first_frag_overflow)) {
1931 pci_unmap_single(nesdev->pcidev,
1933 le16_to_cpu(wqe_fragment_length[
1934 wqe_fragment_index++]),
1937 for (; wqe_fragment_index < 5; wqe_fragment_index++) {
1938 if (wqe_fragment_length[wqe_fragment_index]) {
1939 u64temp = le32_to_cpu(
1941 NES_NIC_SQ_WQE_FRAG0_LOW_IDX+
1942 wqe_fragment_index*2]);
1943 u64temp += ((u64)le32_to_cpu(
1945 NES_NIC_SQ_WQE_FRAG0_HIGH_IDX+
1946 wqe_fragment_index*2]))<<32;
1947 bus_address = (dma_addr_t)u64temp;
1948 pci_unmap_page(nesdev->pcidev,
1951 wqe_fragment_length[
1952 wqe_fragment_index]),
1958 if (nesvnic->nic.tx_skb[nesvnic->nic.sq_tail])
1960 nesvnic->nic.tx_skb[nesvnic->nic.sq_tail]);
1962 nesvnic->nic.sq_tail = (nesvnic->nic.sq_tail + 1)
1963 & (nesvnic->nic.sq_size - 1);
1966 spin_lock_irqsave(&nesdev->cqp.lock, flags);
1968 /* Destroy NIC QP */
1969 cqp_head = nesdev->cqp.sq_head;
1970 cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
1971 nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
1973 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX,
1974 (NES_CQP_DESTROY_QP | NES_CQP_QP_TYPE_NIC));
1975 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX,
1976 nesvnic->nic.qp_id);
1978 if (++cqp_head >= nesdev->cqp.sq_size)
1981 cqp_wqe = &nesdev->cqp.sq_vbase[cqp_head];
1983 /* Destroy NIC CQ */
1984 nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
1985 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX,
1986 (NES_CQP_DESTROY_CQ | ((u32)nesvnic->nic_cq.cq_size << 16)));
1987 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX,
1988 (nesvnic->nic_cq.cq_number | ((u32)nesdev->nic_ceq_index << 16)));
1990 if (++cqp_head >= nesdev->cqp.sq_size)
1993 nesdev->cqp.sq_head = cqp_head;
1996 /* Ring doorbell (2 WQEs) */
1997 nes_write32(nesdev->regs+NES_WQE_ALLOC, 0x02800000 | nesdev->cqp.qp_id);
1999 spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
2000 nes_debug(NES_DBG_SHUTDOWN, "Waiting for CQP, cqp_head=%u, cqp.sq_head=%u,"
2001 " cqp.sq_tail=%u, cqp.sq_size=%u\n",
2002 cqp_head, nesdev->cqp.sq_head,
2003 nesdev->cqp.sq_tail, nesdev->cqp.sq_size);
2005 ret = wait_event_timeout(nesdev->cqp.waitq, (nesdev->cqp.sq_tail == cqp_head),
2008 nes_debug(NES_DBG_SHUTDOWN, "Destroy NIC QP returned, wait_event_timeout ret = %u, cqp_head=%u,"
2009 " cqp.sq_head=%u, cqp.sq_tail=%u\n",
2010 ret, cqp_head, nesdev->cqp.sq_head, nesdev->cqp.sq_tail);
2012 nes_debug(NES_DBG_SHUTDOWN, "NIC QP%u destroy timeout expired\n",
2013 nesvnic->nic.qp_id);
2016 pci_free_consistent(nesdev->pcidev, nesvnic->nic_mem_size, nesvnic->nic_vbase,
2017 nesvnic->nic_pbase);
2019 /* restore old wqm_cfg0 value */
2020 nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG0, wqm_cfg0);
2026 int nes_napi_isr(struct nes_device *nesdev)
2028 struct nes_adapter *nesadapter = nesdev->nesadapter;
2031 if (nesdev->napi_isr_ran) {
2032 /* interrupt status has already been read in ISR */
2033 int_stat = nesdev->int_stat;
2035 int_stat = nes_read32(nesdev->regs + NES_INT_STAT);
2036 nesdev->int_stat = int_stat;
2037 nesdev->napi_isr_ran = 1;
2040 int_stat &= nesdev->int_req;
2041 /* iff NIC, process here, else wait for DPC */
2042 if ((int_stat) && ((int_stat & 0x0000ff00) == int_stat)) {
2043 nesdev->napi_isr_ran = 0;
2044 nes_write32(nesdev->regs + NES_INT_STAT,
2046 ~(NES_INT_INTF | NES_INT_TIMER | NES_INT_MAC0 | NES_INT_MAC1 | NES_INT_MAC2 | NES_INT_MAC3)));
2048 /* Process the CEQs */
2049 nes_process_ceq(nesdev, &nesdev->nesadapter->ceq[nesdev->nic_ceq_index]);
2051 if (unlikely((((nesadapter->et_rx_coalesce_usecs_irq) &&
2052 (!nesadapter->et_use_adaptive_rx_coalesce)) ||
2053 ((nesadapter->et_use_adaptive_rx_coalesce) &&
2054 (nesdev->deepcq_count > nesadapter->et_pkt_rate_low))))) {
2055 if ((nesdev->int_req & NES_INT_TIMER) == 0) {
2056 /* Enable Periodic timer interrupts */
2057 nesdev->int_req |= NES_INT_TIMER;
2058 /* ack any pending periodic timer interrupts so we don't get an immediate interrupt */
2059 /* TODO: need to also ack other unused periodic timer values, get from nesadapter */
2060 nes_write32(nesdev->regs+NES_TIMER_STAT,
2061 nesdev->timer_int_req | ~(nesdev->nesadapter->timer_int_req));
2062 nes_write32(nesdev->regs+NES_INTF_INT_MASK,
2063 ~(nesdev->intf_int_req | NES_INTF_PERIODIC_TIMER));
2066 if (unlikely(nesadapter->et_use_adaptive_rx_coalesce))
2068 nes_nic_init_timer(nesdev);
2070 /* Enable interrupts, except CEQs */
2071 nes_write32(nesdev->regs+NES_INT_MASK, 0x0000ffff | (~nesdev->int_req));
2073 /* Enable interrupts, make sure timer is off */
2074 nesdev->int_req &= ~NES_INT_TIMER;
2075 nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
2076 nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
2078 nesdev->deepcq_count = 0;
2085 static void process_critical_error(struct nes_device *nesdev)
2088 u32 nes_idx_debug_error_masks0 = 0;
2089 u16 error_module = 0;
2091 debug_error = nes_read_indexed(nesdev, NES_IDX_DEBUG_ERROR_CONTROL_STATUS);
2092 printk(KERN_ERR PFX "Critical Error reported by device!!! 0x%02X\n",
2094 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_CONTROL_STATUS,
2095 0x01010000 | (debug_error & 0x0000ffff));
2096 if (crit_err_count++ > 10)
2097 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS1, 1 << 0x17);
2098 error_module = (u16) (debug_error & 0x1F00) >> 8;
2099 if (++nesdev->nesadapter->crit_error_count[error_module-1] >=
2100 nes_max_critical_error_count) {
2101 printk(KERN_ERR PFX "Masking off critical error for module "
2102 "0x%02X\n", (u16)error_module);
2103 nes_idx_debug_error_masks0 = nes_read_indexed(nesdev,
2104 NES_IDX_DEBUG_ERROR_MASKS0);
2105 nes_write_indexed(nesdev, NES_IDX_DEBUG_ERROR_MASKS0,
2106 nes_idx_debug_error_masks0 | (1 << error_module));
2112 void nes_dpc(unsigned long param)
2114 struct nes_device *nesdev = (struct nes_device *)param;
2115 struct nes_adapter *nesadapter = nesdev->nesadapter;
2117 u32 loop_counter = 0;
2123 u32 processed_intf_int = 0;
2124 u16 processed_timer_int = 0;
2125 u16 completion_ints = 0;
2128 /* nes_debug(NES_DBG_ISR, "\n"); */
2132 if (nesdev->napi_isr_ran) {
2133 nesdev->napi_isr_ran = 0;
2134 int_stat = nesdev->int_stat;
2136 int_stat = nes_read32(nesdev->regs+NES_INT_STAT);
2137 if (processed_intf_int != 0)
2138 int_stat &= nesdev->int_req & ~NES_INT_INTF;
2140 int_stat &= nesdev->int_req;
2141 if (processed_timer_int == 0) {
2142 processed_timer_int = 1;
2143 if (int_stat & NES_INT_TIMER) {
2144 timer_stat = nes_read32(nesdev->regs + NES_TIMER_STAT);
2145 if ((timer_stat & nesdev->timer_int_req) == 0) {
2146 int_stat &= ~NES_INT_TIMER;
2150 int_stat &= ~NES_INT_TIMER;
2154 if (int_stat & ~(NES_INT_INTF | NES_INT_TIMER | NES_INT_MAC0|
2155 NES_INT_MAC1|NES_INT_MAC2 | NES_INT_MAC3)) {
2156 /* Ack the interrupts */
2157 nes_write32(nesdev->regs+NES_INT_STAT,
2158 (int_stat & ~(NES_INT_INTF | NES_INT_TIMER | NES_INT_MAC0|
2159 NES_INT_MAC1 | NES_INT_MAC2 | NES_INT_MAC3)));
2162 temp_int_stat = int_stat;
2163 for (counter = 0, int_status_bit = 1; counter < 16; counter++) {
2164 if (int_stat & int_status_bit) {
2165 nes_process_ceq(nesdev, &nesadapter->ceq[counter]);
2166 temp_int_stat &= ~int_status_bit;
2167 completion_ints = 1;
2169 if (!(temp_int_stat & 0x0000ffff))
2171 int_status_bit <<= 1;
2174 /* Process the AEQ for this pci function */
2175 int_status_bit = 1 << (16 + PCI_FUNC(nesdev->pcidev->devfn));
2176 if (int_stat & int_status_bit) {
2177 nes_process_aeq(nesdev, &nesadapter->aeq[PCI_FUNC(nesdev->pcidev->devfn)]);
2180 /* Process the MAC interrupt for this pci function */
2181 int_status_bit = 1 << (24 + nesdev->mac_index);
2182 if (int_stat & int_status_bit) {
2183 nes_process_mac_intr(nesdev, nesdev->mac_index);
2186 if (int_stat & NES_INT_TIMER) {
2187 if (timer_stat & nesdev->timer_int_req) {
2188 nes_write32(nesdev->regs + NES_TIMER_STAT,
2189 (timer_stat & nesdev->timer_int_req) |
2190 ~(nesdev->nesadapter->timer_int_req));
2195 if (int_stat & NES_INT_INTF) {
2196 processed_intf_int = 1;
2197 intf_int_stat = nes_read32(nesdev->regs+NES_INTF_INT_STAT);
2198 intf_int_stat &= nesdev->intf_int_req;
2199 if (NES_INTF_INT_CRITERR & intf_int_stat) {
2200 process_critical_error(nesdev);
2202 if (NES_INTF_INT_PCIERR & intf_int_stat) {
2203 printk(KERN_ERR PFX "PCI Error reported by device!!!\n");
2206 if (NES_INTF_INT_AEQ_OFLOW & intf_int_stat) {
2207 printk(KERN_ERR PFX "AEQ Overflow reported by device!!!\n");
2210 nes_write32(nesdev->regs+NES_INTF_INT_STAT, intf_int_stat);
2213 if (int_stat & NES_INT_TSW) {
2216 /* Don't use the interface interrupt bit stay in loop */
2217 int_stat &= ~NES_INT_INTF | NES_INT_TIMER | NES_INT_MAC0 |
2218 NES_INT_MAC1 | NES_INT_MAC2 | NES_INT_MAC3;
2219 } while ((int_stat != 0) && (loop_counter++ < MAX_DPC_ITERATIONS));
2221 if (timer_ints == 1) {
2222 if ((nesadapter->et_rx_coalesce_usecs_irq) || (nesadapter->et_use_adaptive_rx_coalesce)) {
2223 if (completion_ints == 0) {
2224 nesdev->timer_only_int_count++;
2225 if (nesdev->timer_only_int_count>=nesadapter->timer_int_limit) {
2226 nesdev->timer_only_int_count = 0;
2227 nesdev->int_req &= ~NES_INT_TIMER;
2228 nes_write32(nesdev->regs + NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
2229 nes_write32(nesdev->regs + NES_INT_MASK, ~nesdev->int_req);
2231 nes_write32(nesdev->regs+NES_INT_MASK, 0x0000ffff | (~nesdev->int_req));
2234 if (unlikely(nesadapter->et_use_adaptive_rx_coalesce))
2236 nes_nic_init_timer(nesdev);
2238 nesdev->timer_only_int_count = 0;
2239 nes_write32(nesdev->regs+NES_INT_MASK, 0x0000ffff | (~nesdev->int_req));
2242 nesdev->timer_only_int_count = 0;
2243 nesdev->int_req &= ~NES_INT_TIMER;
2244 nes_write32(nesdev->regs+NES_INTF_INT_MASK, ~(nesdev->intf_int_req));
2245 nes_write32(nesdev->regs+NES_TIMER_STAT,
2246 nesdev->timer_int_req | ~(nesdev->nesadapter->timer_int_req));
2247 nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
2250 if ( (completion_ints == 1) &&
2251 (((nesadapter->et_rx_coalesce_usecs_irq) &&
2252 (!nesadapter->et_use_adaptive_rx_coalesce)) ||
2253 ((nesdev->deepcq_count > nesadapter->et_pkt_rate_low) &&
2254 (nesadapter->et_use_adaptive_rx_coalesce) )) ) {
2255 /* nes_debug(NES_DBG_ISR, "Enabling periodic timer interrupt.\n" ); */
2256 nesdev->timer_only_int_count = 0;
2257 nesdev->int_req |= NES_INT_TIMER;
2258 nes_write32(nesdev->regs+NES_TIMER_STAT,
2259 nesdev->timer_int_req | ~(nesdev->nesadapter->timer_int_req));
2260 nes_write32(nesdev->regs+NES_INTF_INT_MASK,
2261 ~(nesdev->intf_int_req | NES_INTF_PERIODIC_TIMER));
2262 nes_write32(nesdev->regs+NES_INT_MASK, 0x0000ffff | (~nesdev->int_req));
2264 nes_write32(nesdev->regs+NES_INT_MASK, ~nesdev->int_req);
2267 nesdev->deepcq_count = 0;
2274 static void nes_process_ceq(struct nes_device *nesdev, struct nes_hw_ceq *ceq)
2277 struct nes_hw_cq *cq;
2281 /* nes_debug(NES_DBG_CQ, "\n"); */
2282 head = ceq->ceq_head;
2283 ceq_size = ceq->ceq_size;
2286 if (le32_to_cpu(ceq->ceq_vbase[head].ceqe_words[NES_CEQE_CQ_CTX_HIGH_IDX]) &
2288 u64temp = (((u64)(le32_to_cpu(ceq->ceq_vbase[head].ceqe_words[NES_CEQE_CQ_CTX_HIGH_IDX]))) << 32) |
2289 ((u64)(le32_to_cpu(ceq->ceq_vbase[head].ceqe_words[NES_CEQE_CQ_CTX_LOW_IDX])));
2291 cq = *((struct nes_hw_cq **)&u64temp);
2292 /* nes_debug(NES_DBG_CQ, "pCQ = %p\n", cq); */
2294 ceq->ceq_vbase[head].ceqe_words[NES_CEQE_CQ_CTX_HIGH_IDX] = 0;
2296 /* call the event handler */
2297 cq->ce_handler(nesdev, cq);
2299 if (++head >= ceq_size)
2307 ceq->ceq_head = head;
2314 static void nes_process_aeq(struct nes_device *nesdev, struct nes_hw_aeq *aeq)
2321 struct nes_hw_aeqe volatile *aeqe;
2323 head = aeq->aeq_head;
2324 aeq_size = aeq->aeq_size;
2327 aeqe = &aeq->aeq_vbase[head];
2328 if ((le32_to_cpu(aeqe->aeqe_words[NES_AEQE_MISC_IDX]) & NES_AEQE_VALID) == 0)
2330 aeqe_misc = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_MISC_IDX]);
2331 aeqe_cq_id = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]);
2332 if (aeqe_misc & (NES_AEQE_QP|NES_AEQE_CQ)) {
2333 if (aeqe_cq_id >= NES_FIRST_QPN) {
2334 /* dealing with an accelerated QP related AE */
2336 * u64temp = (((u64)(le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_CTXT_HIGH_IDX]))) << 32) |
2337 * ((u64)(le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_CTXT_LOW_IDX])));
2339 nes_process_iwarp_aeqe(nesdev, (struct nes_hw_aeqe *)aeqe);
2341 /* TODO: dealing with a CQP related AE */
2342 nes_debug(NES_DBG_AEQ, "Processing CQP related AE, misc = 0x%04X\n",
2343 (u16)(aeqe_misc >> 16));
2347 aeqe->aeqe_words[NES_AEQE_MISC_IDX] = 0;
2349 if (++head >= aeq_size)
2352 nes_write32(nesdev->regs + NES_AEQ_ALLOC, 1 << 16);
2355 aeq->aeq_head = head;
2358 static void nes_reset_link(struct nes_device *nesdev, u32 mac_index)
2360 struct nes_adapter *nesadapter = nesdev->nesadapter;
2365 if (nesadapter->hw_rev == NE020_REV) {
2370 reset_value = nes_read32(nesdev->regs+NES_SOFTWARE_RESET);
2372 if ((mac_index == 0) || ((mac_index == 1) && (nesadapter->OneG_Mode)))
2373 reset_value |= 0x0000001d;
2375 reset_value |= 0x0000002d;
2377 if (4 <= (nesadapter->link_interrupt_count[mac_index] / ((u16)NES_MAX_LINK_INTERRUPTS))) {
2378 if ((!nesadapter->OneG_Mode) && (nesadapter->port_count == 2)) {
2379 nesadapter->link_interrupt_count[0] = 0;
2380 nesadapter->link_interrupt_count[1] = 0;
2381 u32temp = nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1);
2382 if (0x00000040 & u32temp)
2383 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1, 0x0000F088);
2385 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1, 0x0000F0C8);
2387 reset_value |= 0x0000003d;
2389 nesadapter->link_interrupt_count[mac_index] = 0;
2392 nes_write32(nesdev->regs+NES_SOFTWARE_RESET, reset_value);
2394 while (((nes_read32(nesdev->regs+NES_SOFTWARE_RESET)
2395 & 0x00000040) != 0x00000040) && (i++ < 5000));
2397 if (0x0000003d == (reset_value & 0x0000003d)) {
2398 u32 pcs_control_status0, pcs_control_status1;
2400 for (i = 0; i < 10; i++) {
2401 pcs_control_status0 = nes_read_indexed(nesdev, NES_IDX_PHY_PCS_CONTROL_STATUS0);
2402 pcs_control_status1 = nes_read_indexed(nesdev, NES_IDX_PHY_PCS_CONTROL_STATUS0 + 0x200);
2403 if (((0x0F000000 == (pcs_control_status0 & 0x0F000000))
2404 && (pcs_control_status0 & 0x00100000))
2405 || ((0x0F000000 == (pcs_control_status1 & 0x0F000000))
2406 && (pcs_control_status1 & 0x00100000)))
2412 u32temp = nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1);
2413 if (0x00000040 & u32temp)
2414 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1, 0x0000F088);
2416 nes_write_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_CONTROL1, 0x0000F0C8);
2418 nes_write32(nesdev->regs+NES_SOFTWARE_RESET, reset_value);
2420 while (((nes_read32(nesdev->regs + NES_SOFTWARE_RESET)
2421 & 0x00000040) != 0x00000040) && (i++ < 5000));
2427 * nes_process_mac_intr
2429 static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number)
2431 unsigned long flags;
2432 u32 pcs_control_status;
2433 struct nes_adapter *nesadapter = nesdev->nesadapter;
2434 struct nes_vnic *nesvnic;
2436 u32 mac_index = nesdev->mac_index;
2440 u32 pcs_val = 0x0f0f0000;
2441 u32 pcs_mask = 0x0f1f0000;
2444 spin_lock_irqsave(&nesadapter->phy_lock, flags);
2445 if (nesadapter->mac_sw_state[mac_number] != NES_MAC_SW_IDLE) {
2446 spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
2449 nesadapter->mac_sw_state[mac_number] = NES_MAC_SW_INTERRUPT;
2451 /* ack the MAC interrupt */
2452 mac_status = nes_read_indexed(nesdev, NES_IDX_MAC_INT_STATUS + (mac_index * 0x200));
2453 /* Clear the interrupt */
2454 nes_write_indexed(nesdev, NES_IDX_MAC_INT_STATUS + (mac_index * 0x200), mac_status);
2456 nes_debug(NES_DBG_PHY, "MAC%u interrupt status = 0x%X.\n", mac_number, mac_status);
2458 if (mac_status & (NES_MAC_INT_LINK_STAT_CHG | NES_MAC_INT_XGMII_EXT)) {
2459 nesdev->link_status_interrupts++;
2460 if (0 == (++nesadapter->link_interrupt_count[mac_index] % ((u16)NES_MAX_LINK_INTERRUPTS)))
2461 nes_reset_link(nesdev, mac_index);
2463 /* read the PHY interrupt status register */
2464 if ((nesadapter->OneG_Mode) &&
2465 (nesadapter->phy_type[mac_index] != NES_PHY_TYPE_PUMA_1G)) {
2467 nes_read_1G_phy_reg(nesdev, 0x1a,
2468 nesadapter->phy_index[mac_index], &phy_data);
2469 nes_debug(NES_DBG_PHY, "Phy%d data from register 0x1a = 0x%X.\n",
2470 nesadapter->phy_index[mac_index], phy_data);
2471 } while (phy_data&0x8000);
2475 nes_read_1G_phy_reg(nesdev, 0x11,
2476 nesadapter->phy_index[mac_index], &phy_data);
2477 nes_debug(NES_DBG_PHY, "Phy%d data from register 0x11 = 0x%X.\n",
2478 nesadapter->phy_index[mac_index], phy_data);
2479 if (temp_phy_data == phy_data)
2481 temp_phy_data = phy_data;
2484 nes_read_1G_phy_reg(nesdev, 0x1e,
2485 nesadapter->phy_index[mac_index], &phy_data);
2486 nes_debug(NES_DBG_PHY, "Phy%d data from register 0x1e = 0x%X.\n",
2487 nesadapter->phy_index[mac_index], phy_data);
2489 nes_read_1G_phy_reg(nesdev, 1,
2490 nesadapter->phy_index[mac_index], &phy_data);
2491 nes_debug(NES_DBG_PHY, "1G phy%u data from register 1 = 0x%X\n",
2492 nesadapter->phy_index[mac_index], phy_data);
2494 if (temp_phy_data & 0x1000) {
2495 nes_debug(NES_DBG_PHY, "The Link is up according to the PHY\n");
2498 nes_debug(NES_DBG_PHY, "The Link is down according to the PHY\n");
2501 nes_debug(NES_DBG_PHY, "Eth SERDES Common Status: 0=0x%08X, 1=0x%08X\n",
2502 nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_STATUS0),
2503 nes_read_indexed(nesdev, NES_IDX_ETH_SERDES_COMMON_STATUS0+0x200));
2505 if (nesadapter->phy_type[mac_index] == NES_PHY_TYPE_PUMA_1G) {
2506 switch (mac_index) {
2509 pcs_control_status = nes_read_indexed(nesdev,
2510 NES_IDX_PHY_PCS_CONTROL_STATUS0 + 0x200);
2513 pcs_control_status = nes_read_indexed(nesdev,
2514 NES_IDX_PHY_PCS_CONTROL_STATUS0);
2518 pcs_control_status = nes_read_indexed(nesdev,
2519 NES_IDX_PHY_PCS_CONTROL_STATUS0 + ((mac_index & 1) * 0x200));
2520 pcs_control_status = nes_read_indexed(nesdev,
2521 NES_IDX_PHY_PCS_CONTROL_STATUS0 + ((mac_index & 1) * 0x200));
2524 nes_debug(NES_DBG_PHY, "PCS PHY Control/Status%u: 0x%08X\n",
2525 mac_index, pcs_control_status);
2526 if ((nesadapter->OneG_Mode) &&
2527 (nesadapter->phy_type[mac_index] != NES_PHY_TYPE_PUMA_1G)) {
2528 u32temp = 0x01010000;
2529 if (nesadapter->port_count > 2) {
2530 u32temp |= 0x02020000;
2532 if ((pcs_control_status & u32temp)!= u32temp) {
2534 nes_debug(NES_DBG_PHY, "PCS says the link is down\n");
2537 switch (nesadapter->phy_type[mac_index]) {
2538 case NES_PHY_TYPE_ARGUS:
2539 case NES_PHY_TYPE_SFP_D:
2540 case NES_PHY_TYPE_KR:
2541 /* clear the alarms */
2542 nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 4, 0x0008);
2543 nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 4, 0xc001);
2544 nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 4, 0xc002);
2545 nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 4, 0xc005);
2546 nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 4, 0xc006);
2547 nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 0x9003);
2548 nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 0x9004);
2549 nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 0x9005);
2550 /* check link status */
2551 nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 0x9003);
2552 temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
2554 nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 3, 0x0021);
2555 nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
2556 nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 3, 0x0021);
2557 phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
2559 phy_data = (!temp_phy_data && (phy_data == 0x8000)) ? 0x4 : 0x0;
2561 nes_debug(NES_DBG_PHY, "%s: Phy data = 0x%04X, link was %s.\n",
2562 __func__, phy_data, nesadapter->mac_link_down[mac_index] ? "DOWN" : "UP");
2565 case NES_PHY_TYPE_PUMA_1G:
2567 pcs_val = pcs_mask = 0x01010000;
2569 pcs_val = pcs_mask = 0x02020000;
2572 phy_data = (pcs_val == (pcs_control_status & pcs_mask)) ? 0x4 : 0x0;
2577 if (phy_data & 0x0004) {
2578 if (wide_ppm_offset &&
2579 (nesadapter->phy_type[mac_index] == NES_PHY_TYPE_CX4) &&
2580 (nesadapter->hw_rev != NE020_REV)) {
2581 cdr_ctrl = nes_read_indexed(nesdev,
2582 NES_IDX_ETH_SERDES_CDR_CONTROL0 +
2584 nes_write_indexed(nesdev,
2585 NES_IDX_ETH_SERDES_CDR_CONTROL0 +
2587 cdr_ctrl | 0x000F0000);
2589 nesadapter->mac_link_down[mac_index] = 0;
2590 list_for_each_entry(nesvnic, &nesadapter->nesvnic_list[mac_index], list) {
2591 nes_debug(NES_DBG_PHY, "The Link is UP!!. linkup was %d\n",
2593 if (nesvnic->linkup == 0) {
2594 printk(PFX "The Link is now up for port %s, netdev %p.\n",
2595 nesvnic->netdev->name, nesvnic->netdev);
2596 if (netif_queue_stopped(nesvnic->netdev))
2597 netif_start_queue(nesvnic->netdev);
2598 nesvnic->linkup = 1;
2599 netif_carrier_on(nesvnic->netdev);
2601 spin_lock(&nesvnic->port_ibevent_lock);
2602 if (nesvnic->of_device_registered) {
2603 if (nesdev->iw_status == 0) {
2604 nesdev->iw_status = 1;
2605 nes_port_ibevent(nesvnic);
2608 spin_unlock(&nesvnic->port_ibevent_lock);
2612 if (wide_ppm_offset &&
2613 (nesadapter->phy_type[mac_index] == NES_PHY_TYPE_CX4) &&
2614 (nesadapter->hw_rev != NE020_REV)) {
2615 cdr_ctrl = nes_read_indexed(nesdev,
2616 NES_IDX_ETH_SERDES_CDR_CONTROL0 +
2618 nes_write_indexed(nesdev,
2619 NES_IDX_ETH_SERDES_CDR_CONTROL0 +
2621 cdr_ctrl & 0xFFF0FFFF);
2623 nesadapter->mac_link_down[mac_index] = 1;
2624 list_for_each_entry(nesvnic, &nesadapter->nesvnic_list[mac_index], list) {
2625 nes_debug(NES_DBG_PHY, "The Link is Down!!. linkup was %d\n",
2627 if (nesvnic->linkup == 1) {
2628 printk(PFX "The Link is now down for port %s, netdev %p.\n",
2629 nesvnic->netdev->name, nesvnic->netdev);
2630 if (!(netif_queue_stopped(nesvnic->netdev)))
2631 netif_stop_queue(nesvnic->netdev);
2632 nesvnic->linkup = 0;
2633 netif_carrier_off(nesvnic->netdev);
2635 spin_lock(&nesvnic->port_ibevent_lock);
2636 if (nesvnic->of_device_registered) {
2637 if (nesdev->iw_status == 1) {
2638 nesdev->iw_status = 0;
2639 nes_port_ibevent(nesvnic);
2642 spin_unlock(&nesvnic->port_ibevent_lock);
2646 if (nesadapter->phy_type[mac_index] == NES_PHY_TYPE_SFP_D) {
2647 nesdev->link_recheck = 1;
2648 mod_delayed_work(system_wq, &nesdev->work,
2649 NES_LINK_RECHECK_DELAY);
2653 spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
2655 nesadapter->mac_sw_state[mac_number] = NES_MAC_SW_IDLE;
2658 void nes_recheck_link_status(struct work_struct *work)
2660 unsigned long flags;
2661 struct nes_device *nesdev = container_of(work, struct nes_device, work.work);
2662 struct nes_adapter *nesadapter = nesdev->nesadapter;
2663 struct nes_vnic *nesvnic;
2664 u32 mac_index = nesdev->mac_index;
2668 spin_lock_irqsave(&nesadapter->phy_lock, flags);
2670 /* check link status */
2671 nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 1, 0x9003);
2672 temp_phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
2674 nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 3, 0x0021);
2675 nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
2676 nes_read_10G_phy_reg(nesdev, nesadapter->phy_index[mac_index], 3, 0x0021);
2677 phy_data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
2679 phy_data = (!temp_phy_data && (phy_data == 0x8000)) ? 0x4 : 0x0;
2681 nes_debug(NES_DBG_PHY, "%s: Phy data = 0x%04X, link was %s.\n",
2683 nesadapter->mac_link_down[mac_index] ? "DOWN" : "UP");
2685 if (phy_data & 0x0004) {
2686 nesadapter->mac_link_down[mac_index] = 0;
2687 list_for_each_entry(nesvnic, &nesadapter->nesvnic_list[mac_index], list) {
2688 if (nesvnic->linkup == 0) {
2689 printk(PFX "The Link is now up for port %s, netdev %p.\n",
2690 nesvnic->netdev->name, nesvnic->netdev);
2691 if (netif_queue_stopped(nesvnic->netdev))
2692 netif_start_queue(nesvnic->netdev);
2693 nesvnic->linkup = 1;
2694 netif_carrier_on(nesvnic->netdev);
2696 spin_lock(&nesvnic->port_ibevent_lock);
2697 if (nesvnic->of_device_registered) {
2698 if (nesdev->iw_status == 0) {
2699 nesdev->iw_status = 1;
2700 nes_port_ibevent(nesvnic);
2703 spin_unlock(&nesvnic->port_ibevent_lock);
2708 nesadapter->mac_link_down[mac_index] = 1;
2709 list_for_each_entry(nesvnic, &nesadapter->nesvnic_list[mac_index], list) {
2710 if (nesvnic->linkup == 1) {
2711 printk(PFX "The Link is now down for port %s, netdev %p.\n",
2712 nesvnic->netdev->name, nesvnic->netdev);
2713 if (!(netif_queue_stopped(nesvnic->netdev)))
2714 netif_stop_queue(nesvnic->netdev);
2715 nesvnic->linkup = 0;
2716 netif_carrier_off(nesvnic->netdev);
2718 spin_lock(&nesvnic->port_ibevent_lock);
2719 if (nesvnic->of_device_registered) {
2720 if (nesdev->iw_status == 1) {
2721 nesdev->iw_status = 0;
2722 nes_port_ibevent(nesvnic);
2725 spin_unlock(&nesvnic->port_ibevent_lock);
2729 if (nesdev->link_recheck++ < NES_LINK_RECHECK_MAX)
2730 schedule_delayed_work(&nesdev->work, NES_LINK_RECHECK_DELAY);
2732 nesdev->link_recheck = 0;
2734 spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
2738 static void nes_nic_napi_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *cq)
2740 struct nes_vnic *nesvnic = container_of(cq, struct nes_vnic, nic_cq);
2742 napi_schedule(&nesvnic->napi);
2746 /* The MAX_RQES_TO_PROCESS defines how many max read requests to complete before
2747 * getting out of nic_ce_handler
2749 #define MAX_RQES_TO_PROCESS 384
2752 * nes_nic_ce_handler
2754 void nes_nic_ce_handler(struct nes_device *nesdev, struct nes_hw_nic_cq *cq)
2757 dma_addr_t bus_address;
2758 struct nes_hw_nic *nesnic;
2759 struct nes_vnic *nesvnic = container_of(cq, struct nes_vnic, nic_cq);
2760 struct nes_adapter *nesadapter = nesdev->nesadapter;
2761 struct nes_hw_nic_rq_wqe *nic_rqe;
2762 struct nes_hw_nic_sq_wqe *nic_sqe;
2763 struct sk_buff *skb;
2764 struct sk_buff *rx_skb;
2765 struct nes_rskb_cb *cb;
2766 __le16 *wqe_fragment_length;
2773 u16 wqe_fragment_index = 1; /* first fragment (0) is used by copy buffer */
2776 u16 rqes_processed = 0;
2780 cq_size = cq->cq_size;
2781 cq->cqes_pending = 1;
2783 if (le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_NIC_CQE_MISC_IDX]) &
2784 NES_NIC_CQE_VALID) {
2785 nesnic = &nesvnic->nic;
2786 cqe_misc = le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_NIC_CQE_MISC_IDX]);
2787 if (cqe_misc & NES_NIC_CQE_SQ) {
2789 wqe_fragment_index = 1;
2790 nic_sqe = &nesnic->sq_vbase[nesnic->sq_tail];
2791 skb = nesnic->tx_skb[nesnic->sq_tail];
2792 wqe_fragment_length = (__le16 *)&nic_sqe->wqe_words[NES_NIC_SQ_WQE_LENGTH_0_TAG_IDX];
2793 /* bump past the vlan tag */
2794 wqe_fragment_length++;
2795 if (le16_to_cpu(wqe_fragment_length[wqe_fragment_index]) != 0) {
2796 u64temp = (u64) le32_to_cpu(nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_LOW_IDX +
2797 wqe_fragment_index * 2]);
2798 u64temp += ((u64)le32_to_cpu(nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_HIGH_IDX +
2799 wqe_fragment_index * 2])) << 32;
2800 bus_address = (dma_addr_t)u64temp;
2801 if (test_and_clear_bit(nesnic->sq_tail, nesnic->first_frag_overflow)) {
2802 pci_unmap_single(nesdev->pcidev,
2804 le16_to_cpu(wqe_fragment_length[wqe_fragment_index++]),
2807 for (; wqe_fragment_index < 5; wqe_fragment_index++) {
2808 if (wqe_fragment_length[wqe_fragment_index]) {
2809 u64temp = le32_to_cpu(nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_LOW_IDX +
2810 wqe_fragment_index * 2]);
2811 u64temp += ((u64)le32_to_cpu(nic_sqe->wqe_words[NES_NIC_SQ_WQE_FRAG0_HIGH_IDX
2812 + wqe_fragment_index * 2])) <<32;
2813 bus_address = (dma_addr_t)u64temp;
2814 pci_unmap_page(nesdev->pcidev,
2816 le16_to_cpu(wqe_fragment_length[wqe_fragment_index]),
2823 dev_kfree_skb_any(skb);
2825 nesnic->sq_tail &= nesnic->sq_size-1;
2826 if (sq_cqes > 128) {
2828 /* restart the queue if it had been stopped */
2829 if (netif_queue_stopped(nesvnic->netdev))
2830 netif_wake_queue(nesvnic->netdev);
2836 cq->rx_cqes_completed++;
2837 cq->rx_pkts_indicated++;
2838 rx_pkt_size = cqe_misc & 0x0000ffff;
2839 nic_rqe = &nesnic->rq_vbase[nesnic->rq_tail];
2841 rx_skb = nesnic->rx_skb[nesnic->rq_tail];
2842 nic_rqe = &nesnic->rq_vbase[nesvnic->nic.rq_tail];
2843 bus_address = (dma_addr_t)le32_to_cpu(nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_LOW_IDX]);
2844 bus_address += ((u64)le32_to_cpu(nic_rqe->wqe_words[NES_NIC_RQ_WQE_FRAG0_HIGH_IDX])) << 32;
2845 pci_unmap_single(nesdev->pcidev, bus_address,
2846 nesvnic->max_frame_size, PCI_DMA_FROMDEVICE);
2847 cb = (struct nes_rskb_cb *)&rx_skb->cb[0];
2849 /* rx_skb->tail = rx_skb->data + rx_pkt_size; */
2850 /* rx_skb->len = rx_pkt_size; */
2851 rx_skb->len = 0; /* TODO: see if this is necessary */
2852 skb_put(rx_skb, rx_pkt_size);
2853 rx_skb->protocol = eth_type_trans(rx_skb, nesvnic->netdev);
2855 nesnic->rq_tail &= nesnic->rq_size - 1;
2857 atomic_inc(&nesvnic->rx_skbs_needed);
2858 if (atomic_read(&nesvnic->rx_skbs_needed) > (nesvnic->nic.rq_size>>1)) {
2859 nes_write32(nesdev->regs+NES_CQE_ALLOC,
2860 cq->cq_number | (cqe_count << 16));
2861 /* nesadapter->tune_timer.cq_count += cqe_count; */
2862 nesdev->currcq_count += cqe_count;
2864 nes_replenish_nic_rq(nesvnic);
2866 pkt_type = (u16)(le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_NIC_CQE_TAG_PKT_TYPE_IDX]));
2867 cqe_errv = (cqe_misc & NES_NIC_CQE_ERRV_MASK) >> NES_NIC_CQE_ERRV_SHIFT;
2868 rx_skb->ip_summed = CHECKSUM_NONE;
2870 if ((NES_PKT_TYPE_TCPV4_BITS == (pkt_type & NES_PKT_TYPE_TCPV4_MASK)) ||
2871 (NES_PKT_TYPE_UDPV4_BITS == (pkt_type & NES_PKT_TYPE_UDPV4_MASK))) {
2873 (NES_NIC_ERRV_BITS_IPV4_CSUM_ERR | NES_NIC_ERRV_BITS_TCPUDP_CSUM_ERR |
2874 NES_NIC_ERRV_BITS_IPH_ERR | NES_NIC_ERRV_BITS_WQE_OVERRUN)) == 0) {
2875 if (nesvnic->netdev->features & NETIF_F_RXCSUM)
2876 rx_skb->ip_summed = CHECKSUM_UNNECESSARY;
2878 nes_debug(NES_DBG_CQ, "%s: unsuccessfully checksummed TCP or UDP packet."
2879 " errv = 0x%X, pkt_type = 0x%X.\n",
2880 nesvnic->netdev->name, cqe_errv, pkt_type);
2882 } else if ((pkt_type & NES_PKT_TYPE_IPV4_MASK) == NES_PKT_TYPE_IPV4_BITS) {
2884 (NES_NIC_ERRV_BITS_IPV4_CSUM_ERR | NES_NIC_ERRV_BITS_IPH_ERR |
2885 NES_NIC_ERRV_BITS_WQE_OVERRUN)) == 0) {
2886 if (nesvnic->netdev->features & NETIF_F_RXCSUM) {
2887 rx_skb->ip_summed = CHECKSUM_UNNECESSARY;
2888 /* nes_debug(NES_DBG_CQ, "%s: Reporting successfully checksummed IPv4 packet.\n",
2889 nesvnic->netdev->name); */
2892 nes_debug(NES_DBG_CQ, "%s: unsuccessfully checksummed TCP or UDP packet."
2893 " errv = 0x%X, pkt_type = 0x%X.\n",
2894 nesvnic->netdev->name, cqe_errv, pkt_type);
2896 /* nes_debug(NES_DBG_CQ, "pkt_type=%x, APBVT_MASK=%x\n",
2897 pkt_type, (pkt_type & NES_PKT_TYPE_APBVT_MASK)); */
2899 if ((pkt_type & NES_PKT_TYPE_APBVT_MASK) == NES_PKT_TYPE_APBVT_BITS) {
2900 if (nes_cm_recv(rx_skb, nesvnic->netdev))
2904 goto skip_rx_indicate0;
2907 if (cqe_misc & NES_NIC_CQE_TAG_VALID) {
2908 vlan_tag = (u16)(le32_to_cpu(
2909 cq->cq_vbase[head].cqe_words[NES_NIC_CQE_TAG_PKT_TYPE_IDX])
2911 nes_debug(NES_DBG_CQ, "%s: Reporting stripped VLAN packet. Tag = 0x%04X\n",
2912 nesvnic->netdev->name, vlan_tag);
2914 __vlan_hwaccel_put_tag(rx_skb, htons(ETH_P_8021Q), vlan_tag);
2916 napi_gro_receive(&nesvnic->napi, rx_skb);
2920 /* nesvnic->netstats.rx_packets++; */
2921 /* nesvnic->netstats.rx_bytes += rx_pkt_size; */
2924 cq->cq_vbase[head].cqe_words[NES_NIC_CQE_MISC_IDX] = 0;
2927 if (++head >= cq_size)
2929 if (cqe_count == 255) {
2930 /* Replenish Nic CQ */
2931 nes_write32(nesdev->regs+NES_CQE_ALLOC,
2932 cq->cq_number | (cqe_count << 16));
2933 /* nesdev->nesadapter->tune_timer.cq_count += cqe_count; */
2934 nesdev->currcq_count += cqe_count;
2938 if (cq->rx_cqes_completed >= nesvnic->budget)
2941 cq->cqes_pending = 0;
2949 /* restart the queue if it had been stopped */
2950 if (netif_queue_stopped(nesvnic->netdev))
2951 netif_wake_queue(nesvnic->netdev);
2954 /* nes_debug(NES_DBG_CQ, "CQ%u Processed = %u cqes, new head = %u.\n",
2955 cq->cq_number, cqe_count, cq->cq_head); */
2956 cq->cqe_allocs_pending = cqe_count;
2957 if (unlikely(nesadapter->et_use_adaptive_rx_coalesce))
2959 /* nesdev->nesadapter->tune_timer.cq_count += cqe_count; */
2960 nesdev->currcq_count += cqe_count;
2961 nes_nic_tune_timer(nesdev);
2963 if (atomic_read(&nesvnic->rx_skbs_needed))
2964 nes_replenish_nic_rq(nesvnic);
2970 * nes_cqp_ce_handler
2972 static void nes_cqp_ce_handler(struct nes_device *nesdev, struct nes_hw_cq *cq)
2975 unsigned long flags;
2976 struct nes_hw_cqp *cqp = NULL;
2977 struct nes_cqp_request *cqp_request;
2978 struct nes_hw_cqp_wqe *cqp_wqe;
2988 cq_size = cq->cq_size;
2991 /* process the CQE */
2992 /* nes_debug(NES_DBG_CQP, "head=%u cqe_words=%08X\n", head,
2993 le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_CQE_OPCODE_IDX])); */
2995 opcode = le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_CQE_OPCODE_IDX]);
2996 if (opcode & NES_CQE_VALID) {
2999 error_code = le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_CQE_ERROR_CODE_IDX]);
3001 nes_debug(NES_DBG_CQP, "Bad Completion code for opcode 0x%02X from CQP,"
3002 " Major/Minor codes = 0x%04X:%04X.\n",
3003 le32_to_cpu(cq->cq_vbase[head].cqe_words[NES_CQE_OPCODE_IDX])&0x3f,
3004 (u16)(error_code >> 16),
3008 u64temp = (((u64)(le32_to_cpu(cq->cq_vbase[head].
3009 cqe_words[NES_CQE_COMP_COMP_CTX_HIGH_IDX]))) << 32) |
3010 ((u64)(le32_to_cpu(cq->cq_vbase[head].
3011 cqe_words[NES_CQE_COMP_COMP_CTX_LOW_IDX])));
3013 cqp_request = (struct nes_cqp_request *)(unsigned long)u64temp;
3015 if (cqp_request->waiting) {
3016 /* nes_debug(NES_DBG_CQP, "%s: Waking up requestor\n"); */
3017 cqp_request->major_code = (u16)(error_code >> 16);
3018 cqp_request->minor_code = (u16)error_code;
3020 cqp_request->request_done = 1;
3021 wake_up(&cqp_request->waitq);
3022 nes_put_cqp_request(nesdev, cqp_request);
3024 if (cqp_request->callback)
3025 cqp_request->cqp_callback(nesdev, cqp_request);
3026 nes_free_cqp_request(nesdev, cqp_request);
3029 wake_up(&nesdev->cqp.waitq);
3032 cq->cq_vbase[head].cqe_words[NES_CQE_OPCODE_IDX] = 0;
3033 nes_write32(nesdev->regs + NES_CQE_ALLOC, cq->cq_number | (1 << 16));
3034 if (++cqp->sq_tail >= cqp->sq_size)
3039 if (++head >= cq_size)
3047 spin_lock_irqsave(&nesdev->cqp.lock, flags);
3048 while ((!list_empty(&nesdev->cqp_pending_reqs)) &&
3049 ((((nesdev->cqp.sq_tail+nesdev->cqp.sq_size)-nesdev->cqp.sq_head) &
3050 (nesdev->cqp.sq_size - 1)) != 1)) {
3051 cqp_request = list_entry(nesdev->cqp_pending_reqs.next,
3052 struct nes_cqp_request, list);
3053 list_del_init(&cqp_request->list);
3054 head = nesdev->cqp.sq_head++;
3055 nesdev->cqp.sq_head &= nesdev->cqp.sq_size-1;
3056 cqp_wqe = &nesdev->cqp.sq_vbase[head];
3057 memcpy(cqp_wqe, &cqp_request->cqp_wqe, sizeof(*cqp_wqe));
3060 opcode = cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX];
3061 if ((opcode & NES_CQP_OPCODE_MASK) == NES_CQP_DOWNLOAD_SEGMENT)
3062 ctx_index = NES_CQP_WQE_DL_COMP_CTX_LOW_IDX;
3064 ctx_index = NES_CQP_WQE_COMP_CTX_LOW_IDX;
3065 cqp_wqe->wqe_words[ctx_index] =
3066 cpu_to_le32((u32)((unsigned long)cqp_request));
3067 cqp_wqe->wqe_words[ctx_index + 1] =
3068 cpu_to_le32((u32)(upper_32_bits((unsigned long)cqp_request)));
3069 nes_debug(NES_DBG_CQP, "CQP request %p (opcode 0x%02X) put on CQPs SQ wqe%u.\n",
3070 cqp_request, le32_to_cpu(cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX])&0x3f, head);
3071 /* Ring doorbell (1 WQEs) */
3073 nes_write32(nesdev->regs+NES_WQE_ALLOC, 0x01800000 | nesdev->cqp.qp_id);
3075 spin_unlock_irqrestore(&nesdev->cqp.lock, flags);
3078 nes_write32(nesdev->regs+NES_CQE_ALLOC, NES_CQE_ALLOC_NOTIFY_NEXT |
3080 nes_read32(nesdev->regs+NES_CQE_ALLOC);
3083 static u8 *locate_mpa(u8 *pkt, u32 aeq_info)
3085 if (aeq_info & NES_AEQE_Q2_DATA_ETHERNET) {
3086 /* skip over ethernet header */
3089 /* Skip over IP and TCP headers */
3090 pkt += 4 * (pkt[0] & 0x0f);
3091 pkt += 4 * ((pkt[12] >> 4) & 0x0f);
3096 /* Determine if incoming error pkt is rdma layer */
3097 static u32 iwarp_opcode(struct nes_qp *nesqp, u32 aeq_info)
3101 u32 opcode = 0xffffffff;
3103 if (aeq_info & NES_AEQE_Q2_DATA_WRITTEN) {
3104 pkt = nesqp->hwqp.q2_vbase + BAD_FRAME_OFFSET;
3105 mpa = (u16 *)locate_mpa(pkt, aeq_info);
3106 opcode = be16_to_cpu(mpa[1]) & 0xf;
3112 /* Build iWARP terminate header */
3113 static int nes_bld_terminate_hdr(struct nes_qp *nesqp, u16 async_event_id, u32 aeq_info)
3115 u8 *pkt = nesqp->hwqp.q2_vbase + BAD_FRAME_OFFSET;
3120 struct nes_terminate_hdr *termhdr;
3122 termhdr = (struct nes_terminate_hdr *)nesqp->hwqp.q2_vbase;
3123 memset(termhdr, 0, 64);
3125 if (aeq_info & NES_AEQE_Q2_DATA_WRITTEN) {
3127 /* Use data from offending packet to fill in ddp & rdma hdrs */
3128 pkt = locate_mpa(pkt, aeq_info);
3129 ddp_seg_len = be16_to_cpu(*(u16 *)pkt);
3132 termhdr->hdrct = DDP_LEN_FLAG;
3133 if (pkt[2] & 0x80) {
3135 if (ddp_seg_len >= TERM_DDP_LEN_TAGGED) {
3136 copy_len += TERM_DDP_LEN_TAGGED;
3137 termhdr->hdrct |= DDP_HDR_FLAG;
3140 if (ddp_seg_len >= TERM_DDP_LEN_UNTAGGED) {
3141 copy_len += TERM_DDP_LEN_UNTAGGED;
3142 termhdr->hdrct |= DDP_HDR_FLAG;
3145 if (ddp_seg_len >= (TERM_DDP_LEN_UNTAGGED + TERM_RDMA_LEN)) {
3146 if ((pkt[3] & RDMA_OPCODE_MASK) == RDMA_READ_REQ_OPCODE) {
3147 copy_len += TERM_RDMA_LEN;
3148 termhdr->hdrct |= RDMA_HDR_FLAG;
3155 switch (async_event_id) {
3156 case NES_AEQE_AEID_AMP_UNALLOCATED_STAG:
3157 switch (iwarp_opcode(nesqp, aeq_info)) {
3158 case IWARP_OPCODE_WRITE:
3159 flush_code = IB_WC_LOC_PROT_ERR;
3160 termhdr->layer_etype = (LAYER_DDP << 4) | DDP_TAGGED_BUFFER;
3161 termhdr->error_code = DDP_TAGGED_INV_STAG;
3164 flush_code = IB_WC_REM_ACCESS_ERR;
3165 termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_PROT;
3166 termhdr->error_code = RDMAP_INV_STAG;
3169 case NES_AEQE_AEID_AMP_INVALID_STAG:
3170 flush_code = IB_WC_REM_ACCESS_ERR;
3171 termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_PROT;
3172 termhdr->error_code = RDMAP_INV_STAG;
3174 case NES_AEQE_AEID_AMP_BAD_QP:
3175 flush_code = IB_WC_LOC_QP_OP_ERR;
3176 termhdr->layer_etype = (LAYER_DDP << 4) | DDP_UNTAGGED_BUFFER;
3177 termhdr->error_code = DDP_UNTAGGED_INV_QN;
3179 case NES_AEQE_AEID_AMP_BAD_STAG_KEY:
3180 case NES_AEQE_AEID_AMP_BAD_STAG_INDEX:
3181 switch (iwarp_opcode(nesqp, aeq_info)) {
3182 case IWARP_OPCODE_SEND_INV:
3183 case IWARP_OPCODE_SEND_SE_INV:
3184 flush_code = IB_WC_REM_OP_ERR;
3185 termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_OP;
3186 termhdr->error_code = RDMAP_CANT_INV_STAG;
3189 flush_code = IB_WC_REM_ACCESS_ERR;
3190 termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_PROT;
3191 termhdr->error_code = RDMAP_INV_STAG;
3194 case NES_AEQE_AEID_AMP_BOUNDS_VIOLATION:
3195 if (aeq_info & (NES_AEQE_Q2_DATA_ETHERNET | NES_AEQE_Q2_DATA_MPA)) {
3196 flush_code = IB_WC_LOC_PROT_ERR;
3197 termhdr->layer_etype = (LAYER_DDP << 4) | DDP_TAGGED_BUFFER;
3198 termhdr->error_code = DDP_TAGGED_BOUNDS;
3200 flush_code = IB_WC_REM_ACCESS_ERR;
3201 termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_PROT;
3202 termhdr->error_code = RDMAP_INV_BOUNDS;
3205 case NES_AEQE_AEID_AMP_RIGHTS_VIOLATION:
3206 case NES_AEQE_AEID_AMP_INVALIDATE_NO_REMOTE_ACCESS_RIGHTS:
3207 case NES_AEQE_AEID_PRIV_OPERATION_DENIED:
3208 flush_code = IB_WC_REM_ACCESS_ERR;
3209 termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_PROT;
3210 termhdr->error_code = RDMAP_ACCESS;
3212 case NES_AEQE_AEID_AMP_TO_WRAP:
3213 flush_code = IB_WC_REM_ACCESS_ERR;
3214 termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_PROT;
3215 termhdr->error_code = RDMAP_TO_WRAP;
3217 case NES_AEQE_AEID_AMP_BAD_PD:
3218 switch (iwarp_opcode(nesqp, aeq_info)) {
3219 case IWARP_OPCODE_WRITE:
3220 flush_code = IB_WC_LOC_PROT_ERR;
3221 termhdr->layer_etype = (LAYER_DDP << 4) | DDP_TAGGED_BUFFER;
3222 termhdr->error_code = DDP_TAGGED_UNASSOC_STAG;
3224 case IWARP_OPCODE_SEND_INV:
3225 case IWARP_OPCODE_SEND_SE_INV:
3226 flush_code = IB_WC_REM_ACCESS_ERR;
3227 termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_PROT;
3228 termhdr->error_code = RDMAP_CANT_INV_STAG;
3231 flush_code = IB_WC_REM_ACCESS_ERR;
3232 termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_PROT;
3233 termhdr->error_code = RDMAP_UNASSOC_STAG;
3236 case NES_AEQE_AEID_LLP_RECEIVED_MARKER_AND_LENGTH_FIELDS_DONT_MATCH:
3237 flush_code = IB_WC_LOC_LEN_ERR;
3238 termhdr->layer_etype = (LAYER_MPA << 4) | DDP_LLP;
3239 termhdr->error_code = MPA_MARKER;
3241 case NES_AEQE_AEID_LLP_RECEIVED_MPA_CRC_ERROR:
3242 flush_code = IB_WC_GENERAL_ERR;
3243 termhdr->layer_etype = (LAYER_MPA << 4) | DDP_LLP;
3244 termhdr->error_code = MPA_CRC;
3246 case NES_AEQE_AEID_LLP_SEGMENT_TOO_LARGE:
3247 case NES_AEQE_AEID_LLP_SEGMENT_TOO_SMALL:
3248 flush_code = IB_WC_LOC_LEN_ERR;
3249 termhdr->layer_etype = (LAYER_DDP << 4) | DDP_CATASTROPHIC;
3250 termhdr->error_code = DDP_CATASTROPHIC_LOCAL;
3252 case NES_AEQE_AEID_DDP_LCE_LOCAL_CATASTROPHIC:
3253 case NES_AEQE_AEID_DDP_NO_L_BIT:
3254 flush_code = IB_WC_FATAL_ERR;
3255 termhdr->layer_etype = (LAYER_DDP << 4) | DDP_CATASTROPHIC;
3256 termhdr->error_code = DDP_CATASTROPHIC_LOCAL;
3258 case NES_AEQE_AEID_DDP_INVALID_MSN_GAP_IN_MSN:
3259 case NES_AEQE_AEID_DDP_INVALID_MSN_RANGE_IS_NOT_VALID:
3260 flush_code = IB_WC_GENERAL_ERR;
3261 termhdr->layer_etype = (LAYER_DDP << 4) | DDP_UNTAGGED_BUFFER;
3262 termhdr->error_code = DDP_UNTAGGED_INV_MSN_RANGE;
3264 case NES_AEQE_AEID_DDP_UBE_DDP_MESSAGE_TOO_LONG_FOR_AVAILABLE_BUFFER:
3265 flush_code = IB_WC_LOC_LEN_ERR;
3266 termhdr->layer_etype = (LAYER_DDP << 4) | DDP_UNTAGGED_BUFFER;
3267 termhdr->error_code = DDP_UNTAGGED_INV_TOO_LONG;
3269 case NES_AEQE_AEID_DDP_UBE_INVALID_DDP_VERSION:
3270 flush_code = IB_WC_GENERAL_ERR;
3272 termhdr->layer_etype = (LAYER_DDP << 4) | DDP_TAGGED_BUFFER;
3273 termhdr->error_code = DDP_TAGGED_INV_DDP_VER;
3275 termhdr->layer_etype = (LAYER_DDP << 4) | DDP_UNTAGGED_BUFFER;
3276 termhdr->error_code = DDP_UNTAGGED_INV_DDP_VER;
3279 case NES_AEQE_AEID_DDP_UBE_INVALID_MO:
3280 flush_code = IB_WC_GENERAL_ERR;
3281 termhdr->layer_etype = (LAYER_DDP << 4) | DDP_UNTAGGED_BUFFER;
3282 termhdr->error_code = DDP_UNTAGGED_INV_MO;
3284 case NES_AEQE_AEID_DDP_UBE_INVALID_MSN_NO_BUFFER_AVAILABLE:
3285 flush_code = IB_WC_REM_OP_ERR;
3286 termhdr->layer_etype = (LAYER_DDP << 4) | DDP_UNTAGGED_BUFFER;
3287 termhdr->error_code = DDP_UNTAGGED_INV_MSN_NO_BUF;
3289 case NES_AEQE_AEID_DDP_UBE_INVALID_QN:
3290 flush_code = IB_WC_GENERAL_ERR;
3291 termhdr->layer_etype = (LAYER_DDP << 4) | DDP_UNTAGGED_BUFFER;
3292 termhdr->error_code = DDP_UNTAGGED_INV_QN;
3294 case NES_AEQE_AEID_RDMAP_ROE_INVALID_RDMAP_VERSION:
3295 flush_code = IB_WC_GENERAL_ERR;
3296 termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_OP;
3297 termhdr->error_code = RDMAP_INV_RDMAP_VER;
3299 case NES_AEQE_AEID_RDMAP_ROE_UNEXPECTED_OPCODE:
3300 flush_code = IB_WC_LOC_QP_OP_ERR;
3301 termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_OP;
3302 termhdr->error_code = RDMAP_UNEXPECTED_OP;
3305 flush_code = IB_WC_FATAL_ERR;
3306 termhdr->layer_etype = (LAYER_RDMA << 4) | RDMAP_REMOTE_OP;
3307 termhdr->error_code = RDMAP_UNSPECIFIED;
3312 memcpy(termhdr + 1, pkt, copy_len);
3314 if ((flush_code) && ((NES_AEQE_INBOUND_RDMA & aeq_info) == 0)) {
3315 if (aeq_info & NES_AEQE_SQ)
3316 nesqp->term_sq_flush_code = flush_code;
3318 nesqp->term_rq_flush_code = flush_code;
3321 return sizeof(struct nes_terminate_hdr) + copy_len;
3324 static void nes_terminate_connection(struct nes_device *nesdev, struct nes_qp *nesqp,
3325 struct nes_hw_aeqe *aeqe, enum ib_event_type eventtype)
3328 unsigned long flags;
3334 u32 mod_qp_flags = NES_CQP_QP_IWARP_STATE_TERMINATE |
3335 NES_CQP_QP_TERM_DONT_SEND_FIN;
3336 struct nes_adapter *nesadapter = nesdev->nesadapter;
3338 if (nesqp->term_flags & NES_TERM_SENT)
3339 return; /* Sanity check */
3341 aeq_info = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_MISC_IDX]);
3342 tcp_state = (aeq_info & NES_AEQE_TCP_STATE_MASK) >> NES_AEQE_TCP_STATE_SHIFT;
3343 iwarp_state = (aeq_info & NES_AEQE_IWARP_STATE_MASK) >> NES_AEQE_IWARP_STATE_SHIFT;
3344 async_event_id = (u16)aeq_info;
3346 context = (unsigned long)nesadapter->qp_table[le32_to_cpu(
3347 aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]) - NES_FIRST_QPN];
3353 nesqp = (struct nes_qp *)(unsigned long)context;
3354 spin_lock_irqsave(&nesqp->lock, flags);
3355 nesqp->hw_iwarp_state = iwarp_state;
3356 nesqp->hw_tcp_state = tcp_state;
3357 nesqp->last_aeq = async_event_id;
3358 nesqp->terminate_eventtype = eventtype;
3359 spin_unlock_irqrestore(&nesqp->lock, flags);
3361 if (nesadapter->send_term_ok)
3362 termlen = nes_bld_terminate_hdr(nesqp, async_event_id, aeq_info);
3364 mod_qp_flags |= NES_CQP_QP_TERM_DONT_SEND_TERM_MSG;
3366 if (!nesdev->iw_status) {
3367 nesqp->term_flags = NES_TERM_DONE;
3368 nes_hw_modify_qp(nesdev, nesqp, NES_CQP_QP_IWARP_STATE_ERROR, 0, 0);
3369 nes_cm_disconn(nesqp);
3371 nes_terminate_start_timer(nesqp);
3372 nesqp->term_flags |= NES_TERM_SENT;
3373 nes_hw_modify_qp(nesdev, nesqp, mod_qp_flags, termlen, 0);
3377 static void nes_terminate_send_fin(struct nes_device *nesdev,
3378 struct nes_qp *nesqp, struct nes_hw_aeqe *aeqe)
3384 unsigned long flags;
3386 aeq_info = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_MISC_IDX]);
3387 tcp_state = (aeq_info & NES_AEQE_TCP_STATE_MASK) >> NES_AEQE_TCP_STATE_SHIFT;
3388 iwarp_state = (aeq_info & NES_AEQE_IWARP_STATE_MASK) >> NES_AEQE_IWARP_STATE_SHIFT;
3389 async_event_id = (u16)aeq_info;
3391 spin_lock_irqsave(&nesqp->lock, flags);
3392 nesqp->hw_iwarp_state = iwarp_state;
3393 nesqp->hw_tcp_state = tcp_state;
3394 nesqp->last_aeq = async_event_id;
3395 spin_unlock_irqrestore(&nesqp->lock, flags);
3397 /* Send the fin only */
3398 nes_hw_modify_qp(nesdev, nesqp, NES_CQP_QP_IWARP_STATE_TERMINATE |
3399 NES_CQP_QP_TERM_DONT_SEND_TERM_MSG, 0, 0);
3402 /* Cleanup after a terminate sent or received */
3403 static void nes_terminate_done(struct nes_qp *nesqp, int timeout_occurred)
3405 u32 next_iwarp_state = NES_CQP_QP_IWARP_STATE_ERROR;
3406 unsigned long flags;
3407 struct nes_vnic *nesvnic = to_nesvnic(nesqp->ibqp.device);
3408 struct nes_device *nesdev = nesvnic->nesdev;
3411 spin_lock_irqsave(&nesqp->lock, flags);
3412 if (nesqp->hte_added) {
3413 nesqp->hte_added = 0;
3414 next_iwarp_state |= NES_CQP_QP_DEL_HTE;
3417 first_time = (nesqp->term_flags & NES_TERM_DONE) == 0;
3418 nesqp->term_flags |= NES_TERM_DONE;
3419 spin_unlock_irqrestore(&nesqp->lock, flags);
3421 /* Make sure we go through this only once */
3423 if (timeout_occurred == 0)
3424 del_timer(&nesqp->terminate_timer);
3426 next_iwarp_state |= NES_CQP_QP_RESET;
3428 nes_hw_modify_qp(nesdev, nesqp, next_iwarp_state, 0, 0);
3429 nes_cm_disconn(nesqp);
3433 static void nes_terminate_received(struct nes_device *nesdev,
3434 struct nes_qp *nesqp, struct nes_hw_aeqe *aeqe)
3443 aeq_info = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_MISC_IDX]);
3444 if (aeq_info & NES_AEQE_Q2_DATA_WRITTEN) {
3445 /* Terminate is not a performance path so the silicon */
3446 /* did not validate the frame - do it now */
3447 pkt = nesqp->hwqp.q2_vbase + BAD_FRAME_OFFSET;
3448 mpa = (u32 *)locate_mpa(pkt, aeq_info);
3449 ddp_ctl = (be32_to_cpu(mpa[0]) >> 8) & 0xff;
3450 rdma_ctl = be32_to_cpu(mpa[0]) & 0xff;
3451 if ((ddp_ctl & 0xc0) != 0x40)
3452 aeq_id = NES_AEQE_AEID_DDP_LCE_LOCAL_CATASTROPHIC;
3453 else if ((ddp_ctl & 0x03) != 1)
3454 aeq_id = NES_AEQE_AEID_DDP_UBE_INVALID_DDP_VERSION;
3455 else if (be32_to_cpu(mpa[2]) != 2)
3456 aeq_id = NES_AEQE_AEID_DDP_UBE_INVALID_QN;
3457 else if (be32_to_cpu(mpa[3]) != 1)
3458 aeq_id = NES_AEQE_AEID_DDP_INVALID_MSN_GAP_IN_MSN;
3459 else if (be32_to_cpu(mpa[4]) != 0)
3460 aeq_id = NES_AEQE_AEID_DDP_UBE_INVALID_MO;
3461 else if ((rdma_ctl & 0xc0) != 0x40)
3462 aeq_id = NES_AEQE_AEID_RDMAP_ROE_INVALID_RDMAP_VERSION;
3465 /* Bad terminate recvd - send back a terminate */
3466 aeq_info = (aeq_info & 0xffff0000) | aeq_id;
3467 aeqe->aeqe_words[NES_AEQE_MISC_IDX] = cpu_to_le32(aeq_info);
3468 nes_terminate_connection(nesdev, nesqp, aeqe, IB_EVENT_QP_FATAL);
3473 nesqp->term_flags |= NES_TERM_RCVD;
3474 nesqp->terminate_eventtype = IB_EVENT_QP_FATAL;
3475 nes_terminate_start_timer(nesqp);
3476 nes_terminate_send_fin(nesdev, nesqp, aeqe);
3479 /* Timeout routine in case terminate fails to complete */
3480 void nes_terminate_timeout(unsigned long context)
3482 struct nes_qp *nesqp = (struct nes_qp *)(unsigned long)context;
3484 nes_terminate_done(nesqp, 1);
3487 /* Set a timer in case hw cannot complete the terminate sequence */
3488 static void nes_terminate_start_timer(struct nes_qp *nesqp)
3490 mod_timer(&nesqp->terminate_timer, (jiffies + HZ));
3494 * nes_process_iwarp_aeqe
3496 static void nes_process_iwarp_aeqe(struct nes_device *nesdev,
3497 struct nes_hw_aeqe *aeqe)
3500 unsigned long flags;
3501 struct nes_qp *nesqp;
3502 struct nes_hw_cq *hw_cq;
3503 struct nes_cq *nescq;
3504 int resource_allocated;
3505 struct nes_adapter *nesadapter = nesdev->nesadapter;
3507 u32 next_iwarp_state = 0;
3512 struct ib_event ibevent;
3514 nes_debug(NES_DBG_AEQ, "\n");
3515 aeq_info = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_MISC_IDX]);
3516 if ((NES_AEQE_INBOUND_RDMA & aeq_info) || (!(NES_AEQE_QP & aeq_info))) {
3517 context = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_CTXT_LOW_IDX]);
3518 context += ((u64)le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_CTXT_HIGH_IDX])) << 32;
3520 context = (unsigned long)nesadapter->qp_table[le32_to_cpu(
3521 aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]) - NES_FIRST_QPN];
3525 /* context is nesqp unless async_event_id == CQ ERROR */
3526 nesqp = (struct nes_qp *)(unsigned long)context;
3527 async_event_id = (u16)aeq_info;
3528 tcp_state = (aeq_info & NES_AEQE_TCP_STATE_MASK) >> NES_AEQE_TCP_STATE_SHIFT;
3529 iwarp_state = (aeq_info & NES_AEQE_IWARP_STATE_MASK) >> NES_AEQE_IWARP_STATE_SHIFT;
3530 nes_debug(NES_DBG_AEQ, "aeid = 0x%04X, qp-cq id = %d, aeqe = %p,"
3531 " Tcp state = %s, iWARP state = %s\n",
3533 le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]), aeqe,
3534 nes_tcp_state_str[tcp_state], nes_iwarp_state_str[iwarp_state]);
3536 aeqe_cq_id = le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]);
3537 if (aeq_info & NES_AEQE_QP) {
3538 if (!nes_is_resource_allocated(nesadapter,
3539 nesadapter->allocated_qps,
3544 switch (async_event_id) {
3545 case NES_AEQE_AEID_LLP_FIN_RECEIVED:
3546 if (nesqp->term_flags)
3547 return; /* Ignore it, wait for close complete */
3549 if (atomic_inc_return(&nesqp->close_timer_started) == 1) {
3550 if ((tcp_state == NES_AEQE_TCP_STATE_CLOSE_WAIT) &&
3551 (nesqp->ibqp_state == IB_QPS_RTS)) {
3552 spin_lock_irqsave(&nesqp->lock, flags);
3553 nesqp->hw_iwarp_state = iwarp_state;
3554 nesqp->hw_tcp_state = tcp_state;
3555 nesqp->last_aeq = async_event_id;
3556 next_iwarp_state = NES_CQP_QP_IWARP_STATE_CLOSING;
3557 nesqp->hw_iwarp_state = NES_AEQE_IWARP_STATE_CLOSING;
3558 spin_unlock_irqrestore(&nesqp->lock, flags);
3559 nes_hw_modify_qp(nesdev, nesqp, next_iwarp_state, 0, 0);
3560 nes_cm_disconn(nesqp);
3562 nesqp->cm_id->add_ref(nesqp->cm_id);
3563 schedule_nes_timer(nesqp->cm_node, (struct sk_buff *)nesqp,
3564 NES_TIMER_TYPE_CLOSE, 1, 0);
3565 nes_debug(NES_DBG_AEQ, "QP%u Not decrementing QP refcount (%d),"
3566 " need ae to finish up, original_last_aeq = 0x%04X."
3567 " last_aeq = 0x%04X, scheduling timer. TCP state = %d\n",
3568 nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount),
3569 async_event_id, nesqp->last_aeq, tcp_state);
3572 case NES_AEQE_AEID_LLP_CLOSE_COMPLETE:
3573 spin_lock_irqsave(&nesqp->lock, flags);
3574 nesqp->hw_iwarp_state = iwarp_state;
3575 nesqp->hw_tcp_state = tcp_state;
3576 nesqp->last_aeq = async_event_id;
3577 spin_unlock_irqrestore(&nesqp->lock, flags);
3578 nes_cm_disconn(nesqp);
3581 case NES_AEQE_AEID_RESET_SENT:
3582 tcp_state = NES_AEQE_TCP_STATE_CLOSED;
3583 spin_lock_irqsave(&nesqp->lock, flags);
3584 nesqp->hw_iwarp_state = iwarp_state;
3585 nesqp->hw_tcp_state = tcp_state;
3586 nesqp->last_aeq = async_event_id;
3587 nesqp->hte_added = 0;
3588 spin_unlock_irqrestore(&nesqp->lock, flags);
3589 next_iwarp_state = NES_CQP_QP_IWARP_STATE_ERROR | NES_CQP_QP_DEL_HTE;
3590 nes_hw_modify_qp(nesdev, nesqp, next_iwarp_state, 0, 0);
3591 nes_cm_disconn(nesqp);
3594 case NES_AEQE_AEID_LLP_CONNECTION_RESET:
3595 if (atomic_read(&nesqp->close_timer_started))
3597 spin_lock_irqsave(&nesqp->lock, flags);
3598 nesqp->hw_iwarp_state = iwarp_state;
3599 nesqp->hw_tcp_state = tcp_state;
3600 nesqp->last_aeq = async_event_id;
3601 spin_unlock_irqrestore(&nesqp->lock, flags);
3602 nes_cm_disconn(nesqp);
3605 case NES_AEQE_AEID_TERMINATE_SENT:
3606 nes_terminate_send_fin(nesdev, nesqp, aeqe);
3609 case NES_AEQE_AEID_LLP_TERMINATE_RECEIVED:
3610 nes_terminate_received(nesdev, nesqp, aeqe);
3613 case NES_AEQE_AEID_AMP_BAD_STAG_KEY:
3614 case NES_AEQE_AEID_AMP_BAD_STAG_INDEX:
3615 case NES_AEQE_AEID_AMP_UNALLOCATED_STAG:
3616 case NES_AEQE_AEID_AMP_INVALID_STAG:
3617 case NES_AEQE_AEID_AMP_RIGHTS_VIOLATION:
3618 case NES_AEQE_AEID_AMP_INVALIDATE_NO_REMOTE_ACCESS_RIGHTS:
3619 case NES_AEQE_AEID_PRIV_OPERATION_DENIED:
3620 case NES_AEQE_AEID_DDP_UBE_DDP_MESSAGE_TOO_LONG_FOR_AVAILABLE_BUFFER:
3621 case NES_AEQE_AEID_AMP_BOUNDS_VIOLATION:
3622 case NES_AEQE_AEID_AMP_TO_WRAP:
3623 printk(KERN_ERR PFX "QP[%u] async_event_id=0x%04X IB_EVENT_QP_ACCESS_ERR\n",
3624 nesqp->hwqp.qp_id, async_event_id);
3625 nes_terminate_connection(nesdev, nesqp, aeqe, IB_EVENT_QP_ACCESS_ERR);
3628 case NES_AEQE_AEID_LLP_SEGMENT_TOO_LARGE:
3629 case NES_AEQE_AEID_LLP_SEGMENT_TOO_SMALL:
3630 case NES_AEQE_AEID_DDP_UBE_INVALID_MO:
3631 case NES_AEQE_AEID_DDP_UBE_INVALID_QN:
3632 if (iwarp_opcode(nesqp, aeq_info) > IWARP_OPCODE_TERM) {
3633 aeq_info &= 0xffff0000;
3634 aeq_info |= NES_AEQE_AEID_RDMAP_ROE_UNEXPECTED_OPCODE;
3635 aeqe->aeqe_words[NES_AEQE_MISC_IDX] = cpu_to_le32(aeq_info);
3638 case NES_AEQE_AEID_RDMAP_ROE_BAD_LLP_CLOSE:
3639 case NES_AEQE_AEID_LLP_TOO_MANY_RETRIES:
3640 case NES_AEQE_AEID_DDP_UBE_INVALID_MSN_NO_BUFFER_AVAILABLE:
3641 case NES_AEQE_AEID_LLP_RECEIVED_MPA_CRC_ERROR:
3642 case NES_AEQE_AEID_AMP_BAD_QP:
3643 case NES_AEQE_AEID_LLP_RECEIVED_MARKER_AND_LENGTH_FIELDS_DONT_MATCH:
3644 case NES_AEQE_AEID_DDP_LCE_LOCAL_CATASTROPHIC:
3645 case NES_AEQE_AEID_DDP_NO_L_BIT:
3646 case NES_AEQE_AEID_DDP_INVALID_MSN_GAP_IN_MSN:
3647 case NES_AEQE_AEID_DDP_INVALID_MSN_RANGE_IS_NOT_VALID:
3648 case NES_AEQE_AEID_DDP_UBE_INVALID_DDP_VERSION:
3649 case NES_AEQE_AEID_RDMAP_ROE_INVALID_RDMAP_VERSION:
3650 case NES_AEQE_AEID_RDMAP_ROE_UNEXPECTED_OPCODE:
3651 case NES_AEQE_AEID_AMP_BAD_PD:
3652 case NES_AEQE_AEID_AMP_FASTREG_SHARED:
3653 case NES_AEQE_AEID_AMP_FASTREG_VALID_STAG:
3654 case NES_AEQE_AEID_AMP_FASTREG_MW_STAG:
3655 case NES_AEQE_AEID_AMP_FASTREG_INVALID_RIGHTS:
3656 case NES_AEQE_AEID_AMP_FASTREG_PBL_TABLE_OVERFLOW:
3657 case NES_AEQE_AEID_AMP_FASTREG_INVALID_LENGTH:
3658 case NES_AEQE_AEID_AMP_INVALIDATE_SHARED:
3659 case NES_AEQE_AEID_AMP_INVALIDATE_MR_WITH_BOUND_WINDOWS:
3660 case NES_AEQE_AEID_AMP_MWBIND_VALID_STAG:
3661 case NES_AEQE_AEID_AMP_MWBIND_OF_MR_STAG:
3662 case NES_AEQE_AEID_AMP_MWBIND_TO_ZERO_BASED_STAG:
3663 case NES_AEQE_AEID_AMP_MWBIND_TO_MW_STAG:
3664 case NES_AEQE_AEID_AMP_MWBIND_INVALID_RIGHTS:
3665 case NES_AEQE_AEID_AMP_MWBIND_INVALID_BOUNDS:
3666 case NES_AEQE_AEID_AMP_MWBIND_TO_INVALID_PARENT:
3667 case NES_AEQE_AEID_AMP_MWBIND_BIND_DISABLED:
3668 case NES_AEQE_AEID_BAD_CLOSE:
3669 case NES_AEQE_AEID_RDMA_READ_WHILE_ORD_ZERO:
3670 case NES_AEQE_AEID_STAG_ZERO_INVALID:
3671 case NES_AEQE_AEID_ROE_INVALID_RDMA_READ_REQUEST:
3672 case NES_AEQE_AEID_ROE_INVALID_RDMA_WRITE_OR_READ_RESP:
3673 printk(KERN_ERR PFX "QP[%u] async_event_id=0x%04X IB_EVENT_QP_FATAL\n",
3674 nesqp->hwqp.qp_id, async_event_id);
3675 print_ip(nesqp->cm_node);
3676 if (!atomic_read(&nesqp->close_timer_started))
3677 nes_terminate_connection(nesdev, nesqp, aeqe, IB_EVENT_QP_FATAL);
3680 case NES_AEQE_AEID_CQ_OPERATION_ERROR:
3682 nes_debug(NES_DBG_AEQ, "Processing an NES_AEQE_AEID_CQ_OPERATION_ERROR event on CQ%u, %p\n",
3683 le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]), (void *)(unsigned long)context);
3684 resource_allocated = nes_is_resource_allocated(nesadapter, nesadapter->allocated_cqs,
3685 le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]));
3686 if (resource_allocated) {
3687 printk(KERN_ERR PFX "%s: Processing an NES_AEQE_AEID_CQ_OPERATION_ERROR event on CQ%u\n",
3688 __func__, le32_to_cpu(aeqe->aeqe_words[NES_AEQE_COMP_QP_CQ_ID_IDX]));
3689 hw_cq = (struct nes_hw_cq *)(unsigned long)context;
3691 nescq = container_of(hw_cq, struct nes_cq, hw_cq);
3692 if (nescq->ibcq.event_handler) {
3693 ibevent.device = nescq->ibcq.device;
3694 ibevent.event = IB_EVENT_CQ_ERR;
3695 ibevent.element.cq = &nescq->ibcq;
3696 nescq->ibcq.event_handler(&ibevent, nescq->ibcq.cq_context);
3703 nes_debug(NES_DBG_AEQ, "Processing an iWARP related AE for QP, misc = 0x%04X\n",
3711 * nes_iwarp_ce_handler
3713 void nes_iwarp_ce_handler(struct nes_device *nesdev, struct nes_hw_cq *hw_cq)
3715 struct nes_cq *nescq = container_of(hw_cq, struct nes_cq, hw_cq);
3717 /* nes_debug(NES_DBG_CQ, "Processing completion event for iWARP CQ%u.\n",
3718 nescq->hw_cq.cq_number); */
3719 nes_write32(nesdev->regs+NES_CQ_ACK, nescq->hw_cq.cq_number);
3721 if (nescq->ibcq.comp_handler)
3722 nescq->ibcq.comp_handler(&nescq->ibcq, nescq->ibcq.cq_context);
3729 * nes_manage_apbvt()
3731 int nes_manage_apbvt(struct nes_vnic *nesvnic, u32 accel_local_port,
3732 u32 nic_index, u32 add_port)
3734 struct nes_device *nesdev = nesvnic->nesdev;
3735 struct nes_hw_cqp_wqe *cqp_wqe;
3736 struct nes_cqp_request *cqp_request;
3740 /* Send manage APBVT request to CQP */
3741 cqp_request = nes_get_cqp_request(nesdev);
3742 if (cqp_request == NULL) {
3743 nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n");
3746 cqp_request->waiting = 1;
3747 cqp_wqe = &cqp_request->cqp_wqe;
3749 nes_debug(NES_DBG_QP, "%s APBV for local port=%u(0x%04x), nic_index=%u\n",
3750 (add_port == NES_MANAGE_APBVT_ADD) ? "ADD" : "DEL",
3751 accel_local_port, accel_local_port, nic_index);
3753 nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
3754 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_OPCODE_IDX, (NES_CQP_MANAGE_APBVT |
3755 ((add_port == NES_MANAGE_APBVT_ADD) ? NES_CQP_APBVT_ADD : 0)));
3756 set_wqe_32bit_value(cqp_wqe->wqe_words, NES_CQP_WQE_ID_IDX,
3757 ((nic_index << NES_CQP_APBVT_NIC_SHIFT) | accel_local_port));
3759 nes_debug(NES_DBG_QP, "Waiting for CQP completion for APBVT.\n");
3761 atomic_set(&cqp_request->refcount, 2);
3762 nes_post_cqp_request(nesdev, cqp_request);
3764 if (add_port == NES_MANAGE_APBVT_ADD)
3765 ret = wait_event_timeout(cqp_request->waitq, (cqp_request->request_done != 0),
3767 nes_debug(NES_DBG_QP, "Completed, ret=%u, CQP Major:Minor codes = 0x%04X:0x%04X\n",
3768 ret, cqp_request->major_code, cqp_request->minor_code);
3769 major_code = cqp_request->major_code;
3771 nes_put_cqp_request(nesdev, cqp_request);
3775 else if (major_code)
3783 * nes_manage_arp_cache
3785 void nes_manage_arp_cache(struct net_device *netdev, unsigned char *mac_addr,
3786 u32 ip_addr, u32 action)
3788 struct nes_hw_cqp_wqe *cqp_wqe;
3789 struct nes_vnic *nesvnic = netdev_priv(netdev);
3790 struct nes_device *nesdev;
3791 struct nes_cqp_request *cqp_request;
3794 nesdev = nesvnic->nesdev;
3795 arp_index = nes_arp_table(nesdev, ip_addr, mac_addr, action);
3796 if (arp_index == -1) {
3800 /* update the ARP entry */
3801 cqp_request = nes_get_cqp_request(nesdev);
3802 if (cqp_request == NULL) {
3803 nes_debug(NES_DBG_NETDEV, "Failed to get a cqp_request.\n");
3806 cqp_request->waiting = 0;
3807 cqp_wqe = &cqp_request->cqp_wqe;
3808 nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
3810 cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] = cpu_to_le32(
3811 NES_CQP_MANAGE_ARP_CACHE | NES_CQP_ARP_PERM);
3812 cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] |= cpu_to_le32(
3813 (u32)PCI_FUNC(nesdev->pcidev->devfn) << NES_CQP_ARP_AEQ_INDEX_SHIFT);
3814 cqp_wqe->wqe_words[NES_CQP_WQE_ID_IDX] = cpu_to_le32(arp_index);
3816 if (action == NES_ARP_ADD) {
3817 cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] |= cpu_to_le32(NES_CQP_ARP_VALID);
3818 cqp_wqe->wqe_words[NES_CQP_ARP_WQE_MAC_ADDR_LOW_IDX] = cpu_to_le32(
3819 (((u32)mac_addr[2]) << 24) | (((u32)mac_addr[3]) << 16) |
3820 (((u32)mac_addr[4]) << 8) | (u32)mac_addr[5]);
3821 cqp_wqe->wqe_words[NES_CQP_ARP_WQE_MAC_HIGH_IDX] = cpu_to_le32(
3822 (((u32)mac_addr[0]) << 8) | (u32)mac_addr[1]);
3824 cqp_wqe->wqe_words[NES_CQP_ARP_WQE_MAC_ADDR_LOW_IDX] = 0;
3825 cqp_wqe->wqe_words[NES_CQP_ARP_WQE_MAC_HIGH_IDX] = 0;
3828 nes_debug(NES_DBG_NETDEV, "Not waiting for CQP, cqp.sq_head=%u, cqp.sq_tail=%u\n",
3829 nesdev->cqp.sq_head, nesdev->cqp.sq_tail);
3831 atomic_set(&cqp_request->refcount, 1);
3832 nes_post_cqp_request(nesdev, cqp_request);
3839 void flush_wqes(struct nes_device *nesdev, struct nes_qp *nesqp,
3840 u32 which_wq, u32 wait_completion)
3842 struct nes_cqp_request *cqp_request;
3843 struct nes_hw_cqp_wqe *cqp_wqe;
3844 u32 sq_code = (NES_IWARP_CQE_MAJOR_FLUSH << 16) | NES_IWARP_CQE_MINOR_FLUSH;
3845 u32 rq_code = (NES_IWARP_CQE_MAJOR_FLUSH << 16) | NES_IWARP_CQE_MINOR_FLUSH;
3848 cqp_request = nes_get_cqp_request(nesdev);
3849 if (cqp_request == NULL) {
3850 nes_debug(NES_DBG_QP, "Failed to get a cqp_request.\n");
3853 if (wait_completion) {
3854 cqp_request->waiting = 1;
3855 atomic_set(&cqp_request->refcount, 2);
3857 cqp_request->waiting = 0;
3859 cqp_wqe = &cqp_request->cqp_wqe;
3860 nes_fill_init_cqp_wqe(cqp_wqe, nesdev);
3862 /* If wqe in error was identified, set code to be put into cqe */
3863 if ((nesqp->term_sq_flush_code) && (which_wq & NES_CQP_FLUSH_SQ)) {
3864 which_wq |= NES_CQP_FLUSH_MAJ_MIN;
3865 sq_code = (CQE_MAJOR_DRV << 16) | nesqp->term_sq_flush_code;
3866 nesqp->term_sq_flush_code = 0;
3869 if ((nesqp->term_rq_flush_code) && (which_wq & NES_CQP_FLUSH_RQ)) {
3870 which_wq |= NES_CQP_FLUSH_MAJ_MIN;
3871 rq_code = (CQE_MAJOR_DRV << 16) | nesqp->term_rq_flush_code;
3872 nesqp->term_rq_flush_code = 0;
3875 if (which_wq & NES_CQP_FLUSH_MAJ_MIN) {
3876 cqp_wqe->wqe_words[NES_CQP_QP_WQE_FLUSH_SQ_CODE] = cpu_to_le32(sq_code);
3877 cqp_wqe->wqe_words[NES_CQP_QP_WQE_FLUSH_RQ_CODE] = cpu_to_le32(rq_code);
3880 cqp_wqe->wqe_words[NES_CQP_WQE_OPCODE_IDX] =
3881 cpu_to_le32(NES_CQP_FLUSH_WQES | which_wq);
3882 cqp_wqe->wqe_words[NES_CQP_WQE_ID_IDX] = cpu_to_le32(nesqp->hwqp.qp_id);
3884 nes_post_cqp_request(nesdev, cqp_request);
3886 if (wait_completion) {
3888 ret = wait_event_timeout(cqp_request->waitq, (cqp_request->request_done != 0),
3890 nes_debug(NES_DBG_QP, "Flush SQ QP WQEs completed, ret=%u,"
3891 " CQP Major:Minor codes = 0x%04X:0x%04X\n",
3892 ret, cqp_request->major_code, cqp_request->minor_code);
3893 nes_put_cqp_request(nesdev, cqp_request);