1 // SPDX-License-Identifier: GPL-2.0-only
3 * QLogic iSCSI Offload Driver
4 * Copyright (c) 2016 Cavium Inc.
7 #include <linux/module.h>
9 #include <linux/kernel.h>
10 #include <linux/if_arp.h>
11 #include <scsi/iscsi_if.h>
12 #include <linux/inet.h>
14 #include <linux/list.h>
15 #include <linux/kthread.h>
17 #include <linux/if_vlan.h>
18 #include <linux/cpu.h>
19 #include <linux/iscsi_boot_sysfs.h>
21 #include <scsi/scsi_cmnd.h>
22 #include <scsi/scsi_device.h>
23 #include <scsi/scsi_eh.h>
24 #include <scsi/scsi_host.h>
25 #include <scsi/scsi.h>
29 #include "qedi_iscsi.h"
31 static uint qedi_qed_debug;
32 module_param(qedi_qed_debug, uint, 0644);
33 MODULE_PARM_DESC(qedi_qed_debug, " QED debug level 0 (default)");
35 static uint qedi_fw_debug;
36 module_param(qedi_fw_debug, uint, 0644);
37 MODULE_PARM_DESC(qedi_fw_debug, " Firmware debug level 0(default) to 3");
39 uint qedi_dbg_log = QEDI_LOG_WARN | QEDI_LOG_SCSI_TM;
40 module_param(qedi_dbg_log, uint, 0644);
41 MODULE_PARM_DESC(qedi_dbg_log, " Default debug level");
44 module_param(qedi_io_tracing, uint, 0644);
45 MODULE_PARM_DESC(qedi_io_tracing,
46 " Enable logging of SCSI requests/completions into trace buffer. (default off).");
48 static uint qedi_ll2_buf_size = 0x400;
49 module_param(qedi_ll2_buf_size, uint, 0644);
50 MODULE_PARM_DESC(qedi_ll2_buf_size,
51 "parameter to set ping packet size, default - 0x400, Jumbo packets - 0x2400.");
53 static uint qedi_flags_override;
54 module_param(qedi_flags_override, uint, 0644);
55 MODULE_PARM_DESC(qedi_flags_override, "Disable/Enable MFW error flags bits action.");
57 const struct qed_iscsi_ops *qedi_ops;
58 static struct scsi_transport_template *qedi_scsi_transport;
59 static struct pci_driver qedi_pci_driver;
60 static DEFINE_PER_CPU(struct qedi_percpu_s, qedi_percpu);
61 static LIST_HEAD(qedi_udev_list);
62 /* Static function declaration */
63 static int qedi_alloc_global_queues(struct qedi_ctx *qedi);
64 static void qedi_free_global_queues(struct qedi_ctx *qedi);
65 static struct qedi_cmd *qedi_get_cmd_from_tid(struct qedi_ctx *qedi, u32 tid);
66 static void qedi_reset_uio_rings(struct qedi_uio_dev *udev);
67 static void qedi_ll2_free_skbs(struct qedi_ctx *qedi);
68 static struct nvm_iscsi_block *qedi_get_nvram_block(struct qedi_ctx *qedi);
69 static void qedi_recovery_handler(struct work_struct *work);
70 static void qedi_schedule_hw_err_handler(void *dev,
71 enum qed_hw_err_type err_type);
72 static int qedi_suspend(struct pci_dev *pdev, pm_message_t state);
74 static int qedi_iscsi_event_cb(void *context, u8 fw_event_code, void *fw_handle)
76 struct qedi_ctx *qedi;
77 struct qedi_endpoint *qedi_ep;
78 struct iscsi_eqe_data *data;
81 if (!context || !fw_handle) {
82 QEDI_ERR(NULL, "Recv event with ctx NULL\n");
86 qedi = (struct qedi_ctx *)context;
87 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
88 "Recv Event %d fw_handle %p\n", fw_event_code, fw_handle);
90 data = (struct iscsi_eqe_data *)fw_handle;
91 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
92 "icid=0x%x conn_id=0x%x err-code=0x%x error-pdu-opcode-reserved=0x%x\n",
93 data->icid, data->conn_id, data->error_code,
94 data->error_pdu_opcode_reserved);
96 qedi_ep = qedi->ep_tbl[data->icid];
99 QEDI_WARN(&qedi->dbg_ctx,
100 "Cannot process event, ep already disconnected, cid=0x%x\n",
106 switch (fw_event_code) {
107 case ISCSI_EVENT_TYPE_ASYN_CONNECT_COMPLETE:
108 if (qedi_ep->state == EP_STATE_OFLDCONN_START)
109 qedi_ep->state = EP_STATE_OFLDCONN_COMPL;
111 wake_up_interruptible(&qedi_ep->tcp_ofld_wait);
113 case ISCSI_EVENT_TYPE_ASYN_TERMINATE_DONE:
114 qedi_ep->state = EP_STATE_DISCONN_COMPL;
115 wake_up_interruptible(&qedi_ep->tcp_ofld_wait);
117 case ISCSI_EVENT_TYPE_ISCSI_CONN_ERROR:
118 qedi_process_iscsi_error(qedi_ep, data);
120 case ISCSI_EVENT_TYPE_ASYN_ABORT_RCVD:
121 case ISCSI_EVENT_TYPE_ASYN_SYN_RCVD:
122 case ISCSI_EVENT_TYPE_ASYN_MAX_RT_TIME:
123 case ISCSI_EVENT_TYPE_ASYN_MAX_RT_CNT:
124 case ISCSI_EVENT_TYPE_ASYN_MAX_KA_PROBES_CNT:
125 case ISCSI_EVENT_TYPE_ASYN_FIN_WAIT2:
126 case ISCSI_EVENT_TYPE_TCP_CONN_ERROR:
127 qedi_process_tcp_error(qedi_ep, data);
130 QEDI_ERR(&qedi->dbg_ctx, "Recv Unknown Event %u\n",
137 static int qedi_uio_open(struct uio_info *uinfo, struct inode *inode)
139 struct qedi_uio_dev *udev = uinfo->priv;
140 struct qedi_ctx *qedi = udev->qedi;
142 if (!capable(CAP_NET_ADMIN))
145 if (udev->uio_dev != -1)
149 udev->uio_dev = iminor(inode);
150 qedi_reset_uio_rings(udev);
151 set_bit(UIO_DEV_OPENED, &qedi->flags);
157 static int qedi_uio_close(struct uio_info *uinfo, struct inode *inode)
159 struct qedi_uio_dev *udev = uinfo->priv;
160 struct qedi_ctx *qedi = udev->qedi;
163 clear_bit(UIO_DEV_OPENED, &qedi->flags);
164 qedi_ll2_free_skbs(qedi);
168 static void __qedi_free_uio_rings(struct qedi_uio_dev *udev)
171 free_page((unsigned long)udev->uctrl);
175 if (udev->ll2_ring) {
176 free_page((unsigned long)udev->ll2_ring);
177 udev->ll2_ring = NULL;
181 free_pages((unsigned long)udev->ll2_buf, 2);
182 udev->ll2_buf = NULL;
186 static void __qedi_free_uio(struct qedi_uio_dev *udev)
188 uio_unregister_device(&udev->qedi_uinfo);
190 __qedi_free_uio_rings(udev);
192 pci_dev_put(udev->pdev);
196 static void qedi_free_uio(struct qedi_uio_dev *udev)
201 list_del_init(&udev->list);
202 __qedi_free_uio(udev);
205 static void qedi_reset_uio_rings(struct qedi_uio_dev *udev)
207 struct qedi_ctx *qedi = NULL;
208 struct qedi_uio_ctrl *uctrl = NULL;
213 spin_lock_bh(&qedi->ll2_lock);
214 uctrl->host_rx_cons = 0;
215 uctrl->hw_rx_prod = 0;
216 uctrl->hw_rx_bd_prod = 0;
217 uctrl->host_rx_bd_cons = 0;
219 memset(udev->ll2_ring, 0, udev->ll2_ring_size);
220 memset(udev->ll2_buf, 0, udev->ll2_buf_size);
221 spin_unlock_bh(&qedi->ll2_lock);
224 static int __qedi_alloc_uio_rings(struct qedi_uio_dev *udev)
228 if (udev->ll2_ring || udev->ll2_buf)
231 /* Memory for control area. */
232 udev->uctrl = (void *)get_zeroed_page(GFP_KERNEL);
236 /* Allocating memory for LL2 ring */
237 udev->ll2_ring_size = QEDI_PAGE_SIZE;
238 udev->ll2_ring = (void *)get_zeroed_page(GFP_KERNEL | __GFP_COMP);
239 if (!udev->ll2_ring) {
241 goto exit_alloc_ring;
244 /* Allocating memory for Tx/Rx pkt buffer */
245 udev->ll2_buf_size = TX_RX_RING * qedi_ll2_buf_size;
246 udev->ll2_buf_size = QEDI_PAGE_ALIGN(udev->ll2_buf_size);
247 udev->ll2_buf = (void *)__get_free_pages(GFP_KERNEL | __GFP_COMP |
249 if (!udev->ll2_buf) {
256 free_page((unsigned long)udev->ll2_ring);
257 udev->ll2_ring = NULL;
262 static int qedi_alloc_uio_rings(struct qedi_ctx *qedi)
264 struct qedi_uio_dev *udev = NULL;
267 list_for_each_entry(udev, &qedi_udev_list, list) {
268 if (udev->pdev == qedi->pdev) {
270 if (__qedi_alloc_uio_rings(udev)) {
279 udev = kzalloc(sizeof(*udev), GFP_KERNEL);
288 udev->pdev = qedi->pdev;
290 rc = __qedi_alloc_uio_rings(udev);
294 list_add(&udev->list, &qedi_udev_list);
296 pci_dev_get(udev->pdev);
299 udev->tx_pkt = udev->ll2_buf;
300 udev->rx_pkt = udev->ll2_buf + qedi_ll2_buf_size;
309 static int qedi_init_uio(struct qedi_ctx *qedi)
311 struct qedi_uio_dev *udev = qedi->udev;
312 struct uio_info *uinfo;
318 uinfo = &udev->qedi_uinfo;
320 uinfo->mem[0].addr = (unsigned long)udev->uctrl;
321 uinfo->mem[0].size = sizeof(struct qedi_uio_ctrl);
322 uinfo->mem[0].memtype = UIO_MEM_LOGICAL;
324 uinfo->mem[1].addr = (unsigned long)udev->ll2_ring;
325 uinfo->mem[1].size = udev->ll2_ring_size;
326 uinfo->mem[1].memtype = UIO_MEM_LOGICAL;
328 uinfo->mem[2].addr = (unsigned long)udev->ll2_buf;
329 uinfo->mem[2].size = udev->ll2_buf_size;
330 uinfo->mem[2].memtype = UIO_MEM_LOGICAL;
332 uinfo->name = "qedi_uio";
333 uinfo->version = QEDI_MODULE_VERSION;
334 uinfo->irq = UIO_IRQ_CUSTOM;
336 uinfo->open = qedi_uio_open;
337 uinfo->release = qedi_uio_close;
339 if (udev->uio_dev == -1) {
343 ret = uio_register_device(&udev->pdev->dev, uinfo);
345 QEDI_ERR(&qedi->dbg_ctx,
346 "UIO registration failed\n");
354 static int qedi_alloc_and_init_sb(struct qedi_ctx *qedi,
355 struct qed_sb_info *sb_info, u16 sb_id)
357 struct status_block_e4 *sb_virt;
361 sb_virt = dma_alloc_coherent(&qedi->pdev->dev,
362 sizeof(struct status_block_e4), &sb_phys,
365 QEDI_ERR(&qedi->dbg_ctx,
366 "Status block allocation failed for id = %d.\n",
371 ret = qedi_ops->common->sb_init(qedi->cdev, sb_info, sb_virt, sb_phys,
372 sb_id, QED_SB_TYPE_STORAGE);
374 QEDI_ERR(&qedi->dbg_ctx,
375 "Status block initialization failed for id = %d.\n",
383 static void qedi_free_sb(struct qedi_ctx *qedi)
385 struct qed_sb_info *sb_info;
388 for (id = 0; id < MIN_NUM_CPUS_MSIX(qedi); id++) {
389 sb_info = &qedi->sb_array[id];
390 if (sb_info->sb_virt)
391 dma_free_coherent(&qedi->pdev->dev,
392 sizeof(*sb_info->sb_virt),
393 (void *)sb_info->sb_virt,
398 static void qedi_free_fp(struct qedi_ctx *qedi)
400 kfree(qedi->fp_array);
401 kfree(qedi->sb_array);
404 static void qedi_destroy_fp(struct qedi_ctx *qedi)
410 static int qedi_alloc_fp(struct qedi_ctx *qedi)
414 qedi->fp_array = kcalloc(MIN_NUM_CPUS_MSIX(qedi),
415 sizeof(struct qedi_fastpath), GFP_KERNEL);
416 if (!qedi->fp_array) {
417 QEDI_ERR(&qedi->dbg_ctx,
418 "fastpath fp array allocation failed.\n");
422 qedi->sb_array = kcalloc(MIN_NUM_CPUS_MSIX(qedi),
423 sizeof(struct qed_sb_info), GFP_KERNEL);
424 if (!qedi->sb_array) {
425 QEDI_ERR(&qedi->dbg_ctx,
426 "fastpath sb array allocation failed.\n");
438 static void qedi_int_fp(struct qedi_ctx *qedi)
440 struct qedi_fastpath *fp;
443 memset(qedi->fp_array, 0, MIN_NUM_CPUS_MSIX(qedi) *
444 sizeof(*qedi->fp_array));
445 memset(qedi->sb_array, 0, MIN_NUM_CPUS_MSIX(qedi) *
446 sizeof(*qedi->sb_array));
448 for (id = 0; id < MIN_NUM_CPUS_MSIX(qedi); id++) {
449 fp = &qedi->fp_array[id];
450 fp->sb_info = &qedi->sb_array[id];
453 snprintf(fp->name, sizeof(fp->name), "%s-fp-%d",
456 /* fp_array[i] ---- irq cookie
457 * So init data which is needed in int ctx
462 static int qedi_prepare_fp(struct qedi_ctx *qedi)
464 struct qedi_fastpath *fp;
467 ret = qedi_alloc_fp(qedi);
473 for (id = 0; id < MIN_NUM_CPUS_MSIX(qedi); id++) {
474 fp = &qedi->fp_array[id];
475 ret = qedi_alloc_and_init_sb(qedi, fp->sb_info, fp->sb_id);
477 QEDI_ERR(&qedi->dbg_ctx,
478 "SB allocation and initialization failed.\n");
493 static int qedi_setup_cid_que(struct qedi_ctx *qedi)
497 qedi->cid_que.cid_que_base = kmalloc_array(qedi->max_active_conns,
498 sizeof(u32), GFP_KERNEL);
499 if (!qedi->cid_que.cid_que_base)
502 qedi->cid_que.conn_cid_tbl = kmalloc_array(qedi->max_active_conns,
503 sizeof(struct qedi_conn *),
505 if (!qedi->cid_que.conn_cid_tbl) {
506 kfree(qedi->cid_que.cid_que_base);
507 qedi->cid_que.cid_que_base = NULL;
511 qedi->cid_que.cid_que = (u32 *)qedi->cid_que.cid_que_base;
512 qedi->cid_que.cid_q_prod_idx = 0;
513 qedi->cid_que.cid_q_cons_idx = 0;
514 qedi->cid_que.cid_q_max_idx = qedi->max_active_conns;
515 qedi->cid_que.cid_free_cnt = qedi->max_active_conns;
517 for (i = 0; i < qedi->max_active_conns; i++) {
518 qedi->cid_que.cid_que[i] = i;
519 qedi->cid_que.conn_cid_tbl[i] = NULL;
525 static void qedi_release_cid_que(struct qedi_ctx *qedi)
527 kfree(qedi->cid_que.cid_que_base);
528 qedi->cid_que.cid_que_base = NULL;
530 kfree(qedi->cid_que.conn_cid_tbl);
531 qedi->cid_que.conn_cid_tbl = NULL;
534 static int qedi_init_id_tbl(struct qedi_portid_tbl *id_tbl, u16 size,
535 u16 start_id, u16 next)
537 id_tbl->start = start_id;
540 spin_lock_init(&id_tbl->lock);
541 id_tbl->table = kcalloc(BITS_TO_LONGS(size), sizeof(long), GFP_KERNEL);
548 static void qedi_free_id_tbl(struct qedi_portid_tbl *id_tbl)
550 kfree(id_tbl->table);
551 id_tbl->table = NULL;
554 int qedi_alloc_id(struct qedi_portid_tbl *id_tbl, u16 id)
559 if (id >= id_tbl->max)
562 spin_lock(&id_tbl->lock);
563 if (!test_bit(id, id_tbl->table)) {
564 set_bit(id, id_tbl->table);
567 spin_unlock(&id_tbl->lock);
571 u16 qedi_alloc_new_id(struct qedi_portid_tbl *id_tbl)
575 spin_lock(&id_tbl->lock);
576 id = find_next_zero_bit(id_tbl->table, id_tbl->max, id_tbl->next);
577 if (id >= id_tbl->max) {
578 id = QEDI_LOCAL_PORT_INVALID;
579 if (id_tbl->next != 0) {
580 id = find_first_zero_bit(id_tbl->table, id_tbl->next);
581 if (id >= id_tbl->next)
582 id = QEDI_LOCAL_PORT_INVALID;
586 if (id < id_tbl->max) {
587 set_bit(id, id_tbl->table);
588 id_tbl->next = (id + 1) & (id_tbl->max - 1);
592 spin_unlock(&id_tbl->lock);
597 void qedi_free_id(struct qedi_portid_tbl *id_tbl, u16 id)
599 if (id == QEDI_LOCAL_PORT_INVALID)
603 if (id >= id_tbl->max)
606 clear_bit(id, id_tbl->table);
609 static void qedi_cm_free_mem(struct qedi_ctx *qedi)
613 qedi_free_id_tbl(&qedi->lcl_port_tbl);
616 static int qedi_cm_alloc_mem(struct qedi_ctx *qedi)
620 qedi->ep_tbl = kzalloc((qedi->max_active_conns *
621 sizeof(struct qedi_endpoint *)), GFP_KERNEL);
624 port_id = prandom_u32() % QEDI_LOCAL_PORT_RANGE;
625 if (qedi_init_id_tbl(&qedi->lcl_port_tbl, QEDI_LOCAL_PORT_RANGE,
626 QEDI_LOCAL_PORT_MIN, port_id)) {
627 qedi_cm_free_mem(qedi);
634 static struct qedi_ctx *qedi_host_alloc(struct pci_dev *pdev)
636 struct Scsi_Host *shost;
637 struct qedi_ctx *qedi = NULL;
639 shost = iscsi_host_alloc(&qedi_host_template,
640 sizeof(struct qedi_ctx), 0);
642 QEDI_ERR(NULL, "Could not allocate shost\n");
643 goto exit_setup_shost;
646 shost->max_id = QEDI_MAX_ISCSI_CONNS_PER_HBA - 1;
647 shost->max_channel = 0;
649 shost->max_cmd_len = 16;
650 shost->transportt = qedi_scsi_transport;
652 qedi = iscsi_host_priv(shost);
653 memset(qedi, 0, sizeof(*qedi));
655 qedi->dbg_ctx.host_no = shost->host_no;
657 qedi->dbg_ctx.pdev = pdev;
658 qedi->max_active_conns = ISCSI_MAX_SESS_PER_HBA;
659 qedi->max_sqes = QEDI_SQ_SIZE;
661 shost->nr_hw_queues = MIN_NUM_CPUS_MSIX(qedi);
663 pci_set_drvdata(pdev, qedi);
669 static int qedi_ll2_rx(void *cookie, struct sk_buff *skb, u32 arg1, u32 arg2)
671 struct qedi_ctx *qedi = (struct qedi_ctx *)cookie;
672 struct skb_work_list *work;
676 QEDI_ERR(NULL, "qedi is NULL\n");
680 if (!test_bit(UIO_DEV_OPENED, &qedi->flags)) {
681 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_UIO,
682 "UIO DEV is not opened\n");
687 eh = (struct ethhdr *)skb->data;
688 /* Undo VLAN encapsulation */
689 if (eh->h_proto == htons(ETH_P_8021Q)) {
690 memmove((u8 *)eh + VLAN_HLEN, eh, ETH_ALEN * 2);
691 eh = (struct ethhdr *)skb_pull(skb, VLAN_HLEN);
692 skb_reset_mac_header(skb);
695 /* Filter out non FIP/FCoE frames here to free them faster */
696 if (eh->h_proto != htons(ETH_P_ARP) &&
697 eh->h_proto != htons(ETH_P_IP) &&
698 eh->h_proto != htons(ETH_P_IPV6)) {
699 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_LL2,
700 "Dropping frame ethertype [0x%x] len [0x%x].\n",
701 eh->h_proto, skb->len);
706 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_LL2,
707 "Allowed frame ethertype [0x%x] len [0x%x].\n",
708 eh->h_proto, skb->len);
710 work = kzalloc(sizeof(*work), GFP_ATOMIC);
712 QEDI_WARN(&qedi->dbg_ctx,
713 "Could not allocate work so dropping frame.\n");
718 INIT_LIST_HEAD(&work->list);
721 if (skb_vlan_tag_present(skb))
722 work->vlan_id = skb_vlan_tag_get(skb);
725 __vlan_insert_tag(work->skb, htons(ETH_P_8021Q), work->vlan_id);
727 spin_lock_bh(&qedi->ll2_lock);
728 list_add_tail(&work->list, &qedi->ll2_skb_list);
729 spin_unlock_bh(&qedi->ll2_lock);
731 wake_up_process(qedi->ll2_recv_thread);
736 /* map this skb to iscsiuio mmaped region */
737 static int qedi_ll2_process_skb(struct qedi_ctx *qedi, struct sk_buff *skb,
740 struct qedi_uio_dev *udev = NULL;
741 struct qedi_uio_ctrl *uctrl = NULL;
742 struct qedi_rx_bd rxbd;
743 struct qedi_rx_bd *p_rxbd;
750 QEDI_ERR(NULL, "qedi is NULL\n");
757 ++uctrl->hw_rx_prod_cnt;
758 prod = (uctrl->hw_rx_prod + 1) % RX_RING;
760 pkt = udev->rx_pkt + (prod * qedi_ll2_buf_size);
761 len = min_t(u32, skb->len, (u32)qedi_ll2_buf_size);
762 memcpy(pkt, skb->data, len);
764 memset(&rxbd, 0, sizeof(rxbd));
765 rxbd.rx_pkt_index = prod;
766 rxbd.rx_pkt_len = len;
767 rxbd.vlan_id = vlan_id;
769 uctrl->hw_rx_bd_prod = (uctrl->hw_rx_bd_prod + 1) % QEDI_NUM_RX_BD;
770 rx_bd_prod = uctrl->hw_rx_bd_prod;
771 p_rxbd = (struct qedi_rx_bd *)udev->ll2_ring;
772 p_rxbd += rx_bd_prod;
774 memcpy(p_rxbd, &rxbd, sizeof(rxbd));
776 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_LL2,
777 "hw_rx_prod [%d] prod [%d] hw_rx_bd_prod [%d] rx_pkt_idx [%d] rx_len [%d].\n",
778 uctrl->hw_rx_prod, prod, uctrl->hw_rx_bd_prod,
779 rxbd.rx_pkt_index, rxbd.rx_pkt_len);
780 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_LL2,
781 "host_rx_cons [%d] hw_rx_bd_cons [%d].\n",
782 uctrl->host_rx_cons, uctrl->host_rx_bd_cons);
784 uctrl->hw_rx_prod = prod;
786 /* notify the iscsiuio about new packet */
787 uio_event_notify(&udev->qedi_uinfo);
792 static void qedi_ll2_free_skbs(struct qedi_ctx *qedi)
794 struct skb_work_list *work, *work_tmp;
796 spin_lock_bh(&qedi->ll2_lock);
797 list_for_each_entry_safe(work, work_tmp, &qedi->ll2_skb_list, list) {
798 list_del(&work->list);
799 kfree_skb(work->skb);
802 spin_unlock_bh(&qedi->ll2_lock);
805 static int qedi_ll2_recv_thread(void *arg)
807 struct qedi_ctx *qedi = (struct qedi_ctx *)arg;
808 struct skb_work_list *work, *work_tmp;
810 set_user_nice(current, -20);
812 while (!kthread_should_stop()) {
813 spin_lock_bh(&qedi->ll2_lock);
814 list_for_each_entry_safe(work, work_tmp, &qedi->ll2_skb_list,
816 list_del(&work->list);
817 qedi_ll2_process_skb(qedi, work->skb, work->vlan_id);
818 kfree_skb(work->skb);
821 set_current_state(TASK_INTERRUPTIBLE);
822 spin_unlock_bh(&qedi->ll2_lock);
826 __set_current_state(TASK_RUNNING);
830 static int qedi_set_iscsi_pf_param(struct qedi_ctx *qedi)
837 num_sq_pages = (MAX_OUTSTANDING_TASKS_PER_CON * 8) / QEDI_PAGE_SIZE;
839 qedi->num_queues = MIN_NUM_CPUS_MSIX(qedi);
841 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
842 "Number of CQ count is %d\n", qedi->num_queues);
844 memset(&qedi->pf_params.iscsi_pf_params, 0,
845 sizeof(qedi->pf_params.iscsi_pf_params));
847 qedi->p_cpuq = dma_alloc_coherent(&qedi->pdev->dev,
848 qedi->num_queues * sizeof(struct qedi_glbl_q_params),
849 &qedi->hw_p_cpuq, GFP_KERNEL);
851 QEDI_ERR(&qedi->dbg_ctx, "dma_alloc_coherent fail\n");
856 rval = qedi_alloc_global_queues(qedi);
858 QEDI_ERR(&qedi->dbg_ctx, "Global queue allocation failed.\n");
863 qedi->pf_params.iscsi_pf_params.num_cons = QEDI_MAX_ISCSI_CONNS_PER_HBA;
864 qedi->pf_params.iscsi_pf_params.num_tasks = QEDI_MAX_ISCSI_TASK;
865 qedi->pf_params.iscsi_pf_params.half_way_close_timeout = 10;
866 qedi->pf_params.iscsi_pf_params.num_sq_pages_in_ring = num_sq_pages;
867 qedi->pf_params.iscsi_pf_params.num_r2tq_pages_in_ring = num_sq_pages;
868 qedi->pf_params.iscsi_pf_params.num_uhq_pages_in_ring = num_sq_pages;
869 qedi->pf_params.iscsi_pf_params.num_queues = qedi->num_queues;
870 qedi->pf_params.iscsi_pf_params.debug_mode = qedi_fw_debug;
871 qedi->pf_params.iscsi_pf_params.two_msl_timer = 4000;
872 qedi->pf_params.iscsi_pf_params.max_fin_rt = 2;
874 for (log_page_size = 0 ; log_page_size < 32 ; log_page_size++) {
875 if ((1 << log_page_size) == QEDI_PAGE_SIZE)
878 qedi->pf_params.iscsi_pf_params.log_page_size = log_page_size;
880 qedi->pf_params.iscsi_pf_params.glbl_q_params_addr =
881 (u64)qedi->hw_p_cpuq;
883 /* RQ BDQ initializations.
884 * rq_num_entries: suggested value for Initiator is 16 (4KB RQ)
885 * rqe_log_size: 8 for 256B RQE
887 qedi->pf_params.iscsi_pf_params.rqe_log_size = 8;
888 /* BDQ address and size */
889 qedi->pf_params.iscsi_pf_params.bdq_pbl_base_addr[BDQ_ID_RQ] =
890 qedi->bdq_pbl_list_dma;
891 qedi->pf_params.iscsi_pf_params.bdq_pbl_num_entries[BDQ_ID_RQ] =
892 qedi->bdq_pbl_list_num_entries;
893 qedi->pf_params.iscsi_pf_params.rq_buffer_size = QEDI_BDQ_BUF_SIZE;
895 /* cq_num_entries: num_tasks + rq_num_entries */
896 qedi->pf_params.iscsi_pf_params.cq_num_entries = 2048;
898 qedi->pf_params.iscsi_pf_params.gl_rq_pi = QEDI_PROTO_CQ_PROD_IDX;
899 qedi->pf_params.iscsi_pf_params.gl_cmd_pi = 1;
905 /* Free DMA coherent memory for array of queue pointers we pass to qed */
906 static void qedi_free_iscsi_pf_param(struct qedi_ctx *qedi)
911 size = qedi->num_queues * sizeof(struct qedi_glbl_q_params);
912 dma_free_coherent(&qedi->pdev->dev, size, qedi->p_cpuq,
916 qedi_free_global_queues(qedi);
918 kfree(qedi->global_queues);
921 static void qedi_get_boot_tgt_info(struct nvm_iscsi_block *block,
922 struct qedi_boot_target *tgt, u8 index)
926 ipv6_en = !!(block->generic.ctrl_flags &
927 NVM_ISCSI_CFG_GEN_IPV6_ENABLED);
929 snprintf(tgt->iscsi_name, sizeof(tgt->iscsi_name), "%s",
930 block->target[index].target_name.byte);
932 tgt->ipv6_en = ipv6_en;
935 snprintf(tgt->ip_addr, IPV6_LEN, "%pI6\n",
936 block->target[index].ipv6_addr.byte);
938 snprintf(tgt->ip_addr, IPV4_LEN, "%pI4\n",
939 block->target[index].ipv4_addr.byte);
942 static int qedi_find_boot_info(struct qedi_ctx *qedi,
943 struct qed_mfw_tlv_iscsi *iscsi,
944 struct nvm_iscsi_block *block)
946 struct qedi_boot_target *pri_tgt = NULL, *sec_tgt = NULL;
947 u32 pri_ctrl_flags = 0, sec_ctrl_flags = 0, found = 0;
948 struct iscsi_cls_session *cls_sess;
949 struct iscsi_cls_conn *cls_conn;
950 struct qedi_conn *qedi_conn;
951 struct iscsi_session *sess;
952 struct iscsi_conn *conn;
956 pri_ctrl_flags = !!(block->target[0].ctrl_flags &
957 NVM_ISCSI_CFG_TARGET_ENABLED);
958 if (pri_ctrl_flags) {
959 pri_tgt = kzalloc(sizeof(*pri_tgt), GFP_KERNEL);
962 qedi_get_boot_tgt_info(block, pri_tgt, 0);
965 sec_ctrl_flags = !!(block->target[1].ctrl_flags &
966 NVM_ISCSI_CFG_TARGET_ENABLED);
967 if (sec_ctrl_flags) {
968 sec_tgt = kzalloc(sizeof(*sec_tgt), GFP_KERNEL);
973 qedi_get_boot_tgt_info(block, sec_tgt, 1);
976 for (i = 0; i < qedi->max_active_conns; i++) {
977 qedi_conn = qedi_get_conn_from_id(qedi, i);
981 if (qedi_conn->ep->ip_type == TCP_IPV4)
982 snprintf(ep_ip_addr, IPV4_LEN, "%pI4\n",
983 qedi_conn->ep->dst_addr);
985 snprintf(ep_ip_addr, IPV6_LEN, "%pI6\n",
986 qedi_conn->ep->dst_addr);
988 cls_conn = qedi_conn->cls_conn;
989 conn = cls_conn->dd_data;
990 cls_sess = iscsi_conn_to_session(cls_conn);
991 sess = cls_sess->dd_data;
993 if (!iscsi_is_session_online(cls_sess))
996 if (!sess->targetname)
999 if (pri_ctrl_flags) {
1000 if (!strcmp(pri_tgt->iscsi_name, sess->targetname) &&
1001 !strcmp(pri_tgt->ip_addr, ep_ip_addr)) {
1007 if (sec_ctrl_flags) {
1008 if (!strcmp(sec_tgt->iscsi_name, sess->targetname) &&
1009 !strcmp(sec_tgt->ip_addr, ep_ip_addr)) {
1017 if (conn->hdrdgst_en) {
1018 iscsi->header_digest_set = true;
1019 iscsi->header_digest = 1;
1022 if (conn->datadgst_en) {
1023 iscsi->data_digest_set = true;
1024 iscsi->data_digest = 1;
1026 iscsi->boot_taget_portal_set = true;
1027 iscsi->boot_taget_portal = sess->tpgt;
1042 static void qedi_get_generic_tlv_data(void *dev, struct qed_generic_tlvs *data)
1044 struct qedi_ctx *qedi;
1047 QEDI_INFO(NULL, QEDI_LOG_EVT,
1048 "dev is NULL so ignoring get_generic_tlv_data request.\n");
1051 qedi = (struct qedi_ctx *)dev;
1053 memset(data, 0, sizeof(struct qed_generic_tlvs));
1054 ether_addr_copy(data->mac[0], qedi->mac);
1058 * Protocol TLV handler
1060 static void qedi_get_protocol_tlv_data(void *dev, void *data)
1062 struct qed_mfw_tlv_iscsi *iscsi = data;
1063 struct qed_iscsi_stats *fw_iscsi_stats;
1064 struct nvm_iscsi_block *block = NULL;
1065 u32 chap_en = 0, mchap_en = 0;
1066 struct qedi_ctx *qedi = dev;
1069 fw_iscsi_stats = kmalloc(sizeof(*fw_iscsi_stats), GFP_KERNEL);
1070 if (!fw_iscsi_stats) {
1071 QEDI_ERR(&qedi->dbg_ctx,
1072 "Could not allocate memory for fw_iscsi_stats.\n");
1076 mutex_lock(&qedi->stats_lock);
1077 /* Query firmware for offload stats */
1078 qedi_ops->get_stats(qedi->cdev, fw_iscsi_stats);
1079 mutex_unlock(&qedi->stats_lock);
1081 iscsi->rx_frames_set = true;
1082 iscsi->rx_frames = fw_iscsi_stats->iscsi_rx_packet_cnt;
1083 iscsi->rx_bytes_set = true;
1084 iscsi->rx_bytes = fw_iscsi_stats->iscsi_rx_bytes_cnt;
1085 iscsi->tx_frames_set = true;
1086 iscsi->tx_frames = fw_iscsi_stats->iscsi_tx_packet_cnt;
1087 iscsi->tx_bytes_set = true;
1088 iscsi->tx_bytes = fw_iscsi_stats->iscsi_tx_bytes_cnt;
1089 iscsi->frame_size_set = true;
1090 iscsi->frame_size = qedi->ll2_mtu;
1091 block = qedi_get_nvram_block(qedi);
1093 chap_en = !!(block->generic.ctrl_flags &
1094 NVM_ISCSI_CFG_GEN_CHAP_ENABLED);
1095 mchap_en = !!(block->generic.ctrl_flags &
1096 NVM_ISCSI_CFG_GEN_CHAP_MUTUAL_ENABLED);
1098 iscsi->auth_method_set = (chap_en || mchap_en) ? true : false;
1099 iscsi->auth_method = 1;
1101 iscsi->auth_method = 2;
1103 iscsi->auth_method = 3;
1105 iscsi->tx_desc_size_set = true;
1106 iscsi->tx_desc_size = QEDI_SQ_SIZE;
1107 iscsi->rx_desc_size_set = true;
1108 iscsi->rx_desc_size = QEDI_CQ_SIZE;
1110 /* tpgt, hdr digest, data digest */
1111 rval = qedi_find_boot_info(qedi, iscsi, block);
1113 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
1114 "Boot target not set");
1117 kfree(fw_iscsi_stats);
1122 void qedi_schedule_hw_err_handler(void *dev,
1123 enum qed_hw_err_type err_type)
1125 struct qedi_ctx *qedi = (struct qedi_ctx *)dev;
1126 unsigned long override_flags = qedi_flags_override;
1128 if (override_flags && test_bit(QEDI_ERR_OVERRIDE_EN, &override_flags))
1129 qedi->qedi_err_flags = qedi_flags_override;
1131 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
1132 "HW error handler scheduled, err=%d err_flags=0x%x\n",
1133 err_type, qedi->qedi_err_flags);
1136 case QED_HW_ERR_FAN_FAIL:
1137 schedule_delayed_work(&qedi->board_disable_work, 0);
1139 case QED_HW_ERR_MFW_RESP_FAIL:
1140 case QED_HW_ERR_HW_ATTN:
1141 case QED_HW_ERR_DMAE_FAIL:
1142 case QED_HW_ERR_RAMROD_FAIL:
1143 case QED_HW_ERR_FW_ASSERT:
1144 /* Prevent HW attentions from being reasserted */
1145 if (test_bit(QEDI_ERR_ATTN_CLR_EN, &qedi->qedi_err_flags))
1146 qedi_ops->common->attn_clr_enable(qedi->cdev, true);
1148 if (err_type == QED_HW_ERR_RAMROD_FAIL &&
1149 test_bit(QEDI_ERR_IS_RECOVERABLE, &qedi->qedi_err_flags))
1150 qedi_ops->common->recovery_process(qedi->cdev);
1158 static void qedi_schedule_recovery_handler(void *dev)
1160 struct qedi_ctx *qedi = dev;
1162 QEDI_ERR(&qedi->dbg_ctx, "Recovery handler scheduled.\n");
1164 if (test_and_set_bit(QEDI_IN_RECOVERY, &qedi->flags))
1167 atomic_set(&qedi->link_state, QEDI_LINK_DOWN);
1169 schedule_delayed_work(&qedi->recovery_work, 0);
1172 static void qedi_set_conn_recovery(struct iscsi_cls_session *cls_session)
1174 struct iscsi_session *session = cls_session->dd_data;
1175 struct iscsi_conn *conn = session->leadconn;
1176 struct qedi_conn *qedi_conn = conn->dd_data;
1178 qedi_start_conn_recovery(qedi_conn->qedi, qedi_conn);
1181 static void qedi_link_update(void *dev, struct qed_link_output *link)
1183 struct qedi_ctx *qedi = (struct qedi_ctx *)dev;
1185 if (link->link_up) {
1186 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, "Link Up event.\n");
1187 atomic_set(&qedi->link_state, QEDI_LINK_UP);
1189 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
1190 "Link Down event.\n");
1191 atomic_set(&qedi->link_state, QEDI_LINK_DOWN);
1192 iscsi_host_for_each_session(qedi->shost, qedi_set_conn_recovery);
1196 static struct qed_iscsi_cb_ops qedi_cb_ops = {
1198 .link_update = qedi_link_update,
1199 .schedule_recovery_handler = qedi_schedule_recovery_handler,
1200 .schedule_hw_err_handler = qedi_schedule_hw_err_handler,
1201 .get_protocol_tlv_data = qedi_get_protocol_tlv_data,
1202 .get_generic_tlv_data = qedi_get_generic_tlv_data,
1206 static int qedi_queue_cqe(struct qedi_ctx *qedi, union iscsi_cqe *cqe,
1207 u16 que_idx, struct qedi_percpu_s *p)
1209 struct qedi_work *qedi_work;
1210 struct qedi_conn *q_conn;
1211 struct qedi_cmd *qedi_cmd;
1215 iscsi_cid = cqe->cqe_common.conn_id;
1216 q_conn = qedi->cid_que.conn_cid_tbl[iscsi_cid];
1218 QEDI_WARN(&qedi->dbg_ctx,
1219 "Session no longer exists for cid=0x%x!!\n",
1224 switch (cqe->cqe_common.cqe_type) {
1225 case ISCSI_CQE_TYPE_SOLICITED:
1226 case ISCSI_CQE_TYPE_SOLICITED_WITH_SENSE:
1227 qedi_cmd = qedi_get_cmd_from_tid(qedi, cqe->cqe_solicited.itid);
1232 INIT_LIST_HEAD(&qedi_cmd->cqe_work.list);
1233 qedi_cmd->cqe_work.qedi = qedi;
1234 memcpy(&qedi_cmd->cqe_work.cqe, cqe, sizeof(union iscsi_cqe));
1235 qedi_cmd->cqe_work.que_idx = que_idx;
1236 qedi_cmd->cqe_work.is_solicited = true;
1237 list_add_tail(&qedi_cmd->cqe_work.list, &p->work_list);
1239 case ISCSI_CQE_TYPE_UNSOLICITED:
1240 case ISCSI_CQE_TYPE_DUMMY:
1241 case ISCSI_CQE_TYPE_TASK_CLEANUP:
1242 qedi_work = kzalloc(sizeof(*qedi_work), GFP_ATOMIC);
1247 INIT_LIST_HEAD(&qedi_work->list);
1248 qedi_work->qedi = qedi;
1249 memcpy(&qedi_work->cqe, cqe, sizeof(union iscsi_cqe));
1250 qedi_work->que_idx = que_idx;
1251 qedi_work->is_solicited = false;
1252 list_add_tail(&qedi_work->list, &p->work_list);
1256 QEDI_ERR(&qedi->dbg_ctx, "FW Error cqe.\n");
1261 static bool qedi_process_completions(struct qedi_fastpath *fp)
1263 struct qedi_ctx *qedi = fp->qedi;
1264 struct qed_sb_info *sb_info = fp->sb_info;
1265 struct status_block_e4 *sb = sb_info->sb_virt;
1266 struct qedi_percpu_s *p = NULL;
1267 struct global_queue *que;
1269 unsigned long flags;
1270 union iscsi_cqe *cqe;
1274 /* Get the current firmware producer index */
1275 prod_idx = sb->pi_array[QEDI_PROTO_CQ_PROD_IDX];
1277 if (prod_idx >= QEDI_CQ_SIZE)
1278 prod_idx = prod_idx % QEDI_CQ_SIZE;
1280 que = qedi->global_queues[fp->sb_id];
1281 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_IO,
1282 "Before: global queue=%p prod_idx=%d cons_idx=%d, sb_id=%d\n",
1283 que, prod_idx, que->cq_cons_idx, fp->sb_id);
1285 qedi->intr_cpu = fp->sb_id;
1286 cpu = smp_processor_id();
1287 p = &per_cpu(qedi_percpu, cpu);
1289 if (unlikely(!p->iothread))
1292 spin_lock_irqsave(&p->p_work_lock, flags);
1293 while (que->cq_cons_idx != prod_idx) {
1294 cqe = &que->cq[que->cq_cons_idx];
1296 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_IO,
1297 "cqe=%p prod_idx=%d cons_idx=%d.\n",
1298 cqe, prod_idx, que->cq_cons_idx);
1300 ret = qedi_queue_cqe(qedi, cqe, fp->sb_id, p);
1302 QEDI_WARN(&qedi->dbg_ctx,
1303 "Dropping CQE 0x%x for cid=0x%x.\n",
1304 que->cq_cons_idx, cqe->cqe_common.conn_id);
1307 if (que->cq_cons_idx == QEDI_CQ_SIZE)
1308 que->cq_cons_idx = 0;
1310 wake_up_process(p->iothread);
1311 spin_unlock_irqrestore(&p->p_work_lock, flags);
1316 static bool qedi_fp_has_work(struct qedi_fastpath *fp)
1318 struct qedi_ctx *qedi = fp->qedi;
1319 struct global_queue *que;
1320 struct qed_sb_info *sb_info = fp->sb_info;
1321 struct status_block_e4 *sb = sb_info->sb_virt;
1326 /* Get the current firmware producer index */
1327 prod_idx = sb->pi_array[QEDI_PROTO_CQ_PROD_IDX];
1329 /* Get the pointer to the global CQ this completion is on */
1330 que = qedi->global_queues[fp->sb_id];
1332 /* prod idx wrap around uint16 */
1333 if (prod_idx >= QEDI_CQ_SIZE)
1334 prod_idx = prod_idx % QEDI_CQ_SIZE;
1336 return (que->cq_cons_idx != prod_idx);
1339 /* MSI-X fastpath handler code */
1340 static irqreturn_t qedi_msix_handler(int irq, void *dev_id)
1342 struct qedi_fastpath *fp = dev_id;
1343 struct qedi_ctx *qedi = fp->qedi;
1344 bool wake_io_thread = true;
1346 qed_sb_ack(fp->sb_info, IGU_INT_DISABLE, 0);
1349 wake_io_thread = qedi_process_completions(fp);
1350 if (wake_io_thread) {
1351 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_DISC,
1352 "process already running\n");
1355 if (!qedi_fp_has_work(fp))
1356 qed_sb_update_sb_idx(fp->sb_info);
1358 /* Check for more work */
1361 if (!qedi_fp_has_work(fp))
1362 qed_sb_ack(fp->sb_info, IGU_INT_ENABLE, 1);
1369 /* simd handler for MSI/INTa */
1370 static void qedi_simd_int_handler(void *cookie)
1372 /* Cookie is qedi_ctx struct */
1373 struct qedi_ctx *qedi = (struct qedi_ctx *)cookie;
1375 QEDI_WARN(&qedi->dbg_ctx, "qedi=%p.\n", qedi);
1378 #define QEDI_SIMD_HANDLER_NUM 0
1379 static void qedi_sync_free_irqs(struct qedi_ctx *qedi)
1384 if (qedi->int_info.msix_cnt) {
1385 for (i = 0; i < qedi->int_info.used_cnt; i++) {
1386 idx = i * qedi->dev_info.common.num_hwfns +
1387 qedi_ops->common->get_affin_hwfn_idx(qedi->cdev);
1389 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
1390 "Freeing IRQ #%d vector_idx=%d.\n", i, idx);
1392 synchronize_irq(qedi->int_info.msix[idx].vector);
1393 irq_set_affinity_hint(qedi->int_info.msix[idx].vector,
1395 free_irq(qedi->int_info.msix[idx].vector,
1396 &qedi->fp_array[i]);
1399 qedi_ops->common->simd_handler_clean(qedi->cdev,
1400 QEDI_SIMD_HANDLER_NUM);
1403 qedi->int_info.used_cnt = 0;
1404 qedi_ops->common->set_fp_int(qedi->cdev, 0);
1407 static int qedi_request_msix_irq(struct qedi_ctx *qedi)
1412 cpu = cpumask_first(cpu_online_mask);
1413 for (i = 0; i < qedi->msix_count; i++) {
1414 idx = i * qedi->dev_info.common.num_hwfns +
1415 qedi_ops->common->get_affin_hwfn_idx(qedi->cdev);
1417 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
1418 "dev_info: num_hwfns=%d affin_hwfn_idx=%d.\n",
1419 qedi->dev_info.common.num_hwfns,
1420 qedi_ops->common->get_affin_hwfn_idx(qedi->cdev));
1422 rc = request_irq(qedi->int_info.msix[idx].vector,
1423 qedi_msix_handler, 0, "qedi",
1424 &qedi->fp_array[i]);
1426 QEDI_WARN(&qedi->dbg_ctx, "request_irq failed.\n");
1427 qedi_sync_free_irqs(qedi);
1430 qedi->int_info.used_cnt++;
1431 rc = irq_set_affinity_hint(qedi->int_info.msix[idx].vector,
1433 cpu = cpumask_next(cpu, cpu_online_mask);
1439 static int qedi_setup_int(struct qedi_ctx *qedi)
1443 rc = qedi_ops->common->set_fp_int(qedi->cdev, qedi->num_queues);
1445 goto exit_setup_int;
1447 qedi->msix_count = rc;
1449 rc = qedi_ops->common->get_fp_int(qedi->cdev, &qedi->int_info);
1451 goto exit_setup_int;
1453 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_DISC,
1454 "Number of msix_cnt = 0x%x num of cpus = 0x%x\n",
1455 qedi->int_info.msix_cnt, num_online_cpus());
1457 if (qedi->int_info.msix_cnt) {
1458 rc = qedi_request_msix_irq(qedi);
1459 goto exit_setup_int;
1461 qedi_ops->common->simd_handler_config(qedi->cdev, &qedi,
1462 QEDI_SIMD_HANDLER_NUM,
1463 qedi_simd_int_handler);
1464 qedi->int_info.used_cnt = 1;
1471 static void qedi_free_nvm_iscsi_cfg(struct qedi_ctx *qedi)
1473 if (qedi->iscsi_image)
1474 dma_free_coherent(&qedi->pdev->dev,
1475 sizeof(struct qedi_nvm_iscsi_image),
1476 qedi->iscsi_image, qedi->nvm_buf_dma);
1479 static int qedi_alloc_nvm_iscsi_cfg(struct qedi_ctx *qedi)
1481 qedi->iscsi_image = dma_alloc_coherent(&qedi->pdev->dev,
1482 sizeof(struct qedi_nvm_iscsi_image),
1483 &qedi->nvm_buf_dma, GFP_KERNEL);
1484 if (!qedi->iscsi_image) {
1485 QEDI_ERR(&qedi->dbg_ctx, "Could not allocate NVM BUF.\n");
1488 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
1489 "NVM BUF addr=0x%p dma=0x%llx.\n", qedi->iscsi_image,
1495 static void qedi_free_bdq(struct qedi_ctx *qedi)
1499 if (qedi->bdq_pbl_list)
1500 dma_free_coherent(&qedi->pdev->dev, QEDI_PAGE_SIZE,
1501 qedi->bdq_pbl_list, qedi->bdq_pbl_list_dma);
1504 dma_free_coherent(&qedi->pdev->dev, qedi->bdq_pbl_mem_size,
1505 qedi->bdq_pbl, qedi->bdq_pbl_dma);
1507 for (i = 0; i < QEDI_BDQ_NUM; i++) {
1508 if (qedi->bdq[i].buf_addr) {
1509 dma_free_coherent(&qedi->pdev->dev, QEDI_BDQ_BUF_SIZE,
1510 qedi->bdq[i].buf_addr,
1511 qedi->bdq[i].buf_dma);
1516 static void qedi_free_global_queues(struct qedi_ctx *qedi)
1519 struct global_queue **gl = qedi->global_queues;
1521 for (i = 0; i < qedi->num_queues; i++) {
1526 dma_free_coherent(&qedi->pdev->dev, gl[i]->cq_mem_size,
1527 gl[i]->cq, gl[i]->cq_dma);
1529 dma_free_coherent(&qedi->pdev->dev, gl[i]->cq_pbl_size,
1530 gl[i]->cq_pbl, gl[i]->cq_pbl_dma);
1534 qedi_free_bdq(qedi);
1535 qedi_free_nvm_iscsi_cfg(qedi);
1538 static int qedi_alloc_bdq(struct qedi_ctx *qedi)
1541 struct scsi_bd *pbl;
1545 /* Alloc dma memory for BDQ buffers */
1546 for (i = 0; i < QEDI_BDQ_NUM; i++) {
1547 qedi->bdq[i].buf_addr =
1548 dma_alloc_coherent(&qedi->pdev->dev,
1550 &qedi->bdq[i].buf_dma,
1552 if (!qedi->bdq[i].buf_addr) {
1553 QEDI_ERR(&qedi->dbg_ctx,
1554 "Could not allocate BDQ buffer %d.\n", i);
1559 /* Alloc dma memory for BDQ page buffer list */
1560 qedi->bdq_pbl_mem_size = QEDI_BDQ_NUM * sizeof(struct scsi_bd);
1561 qedi->bdq_pbl_mem_size = ALIGN(qedi->bdq_pbl_mem_size, QEDI_PAGE_SIZE);
1562 qedi->rq_num_entries = qedi->bdq_pbl_mem_size / sizeof(struct scsi_bd);
1564 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN, "rq_num_entries = %d.\n",
1565 qedi->rq_num_entries);
1567 qedi->bdq_pbl = dma_alloc_coherent(&qedi->pdev->dev,
1568 qedi->bdq_pbl_mem_size,
1569 &qedi->bdq_pbl_dma, GFP_KERNEL);
1570 if (!qedi->bdq_pbl) {
1571 QEDI_ERR(&qedi->dbg_ctx, "Could not allocate BDQ PBL.\n");
1576 * Populate BDQ PBL with physical and virtual address of individual
1579 pbl = (struct scsi_bd *)qedi->bdq_pbl;
1580 for (i = 0; i < QEDI_BDQ_NUM; i++) {
1582 cpu_to_le32(QEDI_U64_HI(qedi->bdq[i].buf_dma));
1584 cpu_to_le32(QEDI_U64_LO(qedi->bdq[i].buf_dma));
1585 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN,
1586 "pbl [0x%p] pbl->address hi [0x%llx] lo [0x%llx], idx [%d]\n",
1587 pbl, pbl->address.hi, pbl->address.lo, i);
1588 pbl->opaque.iscsi_opaque.reserved_zero[0] = 0;
1589 pbl->opaque.iscsi_opaque.reserved_zero[1] = 0;
1590 pbl->opaque.iscsi_opaque.reserved_zero[2] = 0;
1591 pbl->opaque.iscsi_opaque.opaque = cpu_to_le16(i);
1595 /* Allocate list of PBL pages */
1596 qedi->bdq_pbl_list = dma_alloc_coherent(&qedi->pdev->dev,
1598 &qedi->bdq_pbl_list_dma,
1600 if (!qedi->bdq_pbl_list) {
1601 QEDI_ERR(&qedi->dbg_ctx,
1602 "Could not allocate list of PBL pages.\n");
1607 * Now populate PBL list with pages that contain pointers to the
1608 * individual buffers.
1610 qedi->bdq_pbl_list_num_entries = qedi->bdq_pbl_mem_size /
1612 list = (u64 *)qedi->bdq_pbl_list;
1613 page = qedi->bdq_pbl_list_dma;
1614 for (i = 0; i < qedi->bdq_pbl_list_num_entries; i++) {
1615 *list = qedi->bdq_pbl_dma;
1617 page += QEDI_PAGE_SIZE;
1623 static int qedi_alloc_global_queues(struct qedi_ctx *qedi)
1633 * Number of global queues (CQ / RQ). This should
1634 * be <= number of available MSIX vectors for the PF
1636 if (!qedi->num_queues) {
1637 QEDI_ERR(&qedi->dbg_ctx, "No MSI-X vectors available!\n");
1641 /* Make sure we allocated the PBL that will contain the physical
1642 * addresses of our queues
1644 if (!qedi->p_cpuq) {
1646 goto mem_alloc_failure;
1649 qedi->global_queues = kzalloc((sizeof(struct global_queue *) *
1650 qedi->num_queues), GFP_KERNEL);
1651 if (!qedi->global_queues) {
1652 QEDI_ERR(&qedi->dbg_ctx,
1653 "Unable to allocate global queues array ptr memory\n");
1656 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_DISC,
1657 "qedi->global_queues=%p.\n", qedi->global_queues);
1659 /* Allocate DMA coherent buffers for BDQ */
1660 status = qedi_alloc_bdq(qedi);
1662 goto mem_alloc_failure;
1664 /* Allocate DMA coherent buffers for NVM_ISCSI_CFG */
1665 status = qedi_alloc_nvm_iscsi_cfg(qedi);
1667 goto mem_alloc_failure;
1669 /* Allocate a CQ and an associated PBL for each MSI-X
1672 for (i = 0; i < qedi->num_queues; i++) {
1673 qedi->global_queues[i] =
1674 kzalloc(sizeof(*qedi->global_queues[0]),
1676 if (!qedi->global_queues[i]) {
1677 QEDI_ERR(&qedi->dbg_ctx,
1678 "Unable to allocation global queue %d.\n", i);
1680 goto mem_alloc_failure;
1683 qedi->global_queues[i]->cq_mem_size =
1684 (QEDI_CQ_SIZE + 8) * sizeof(union iscsi_cqe);
1685 qedi->global_queues[i]->cq_mem_size =
1686 (qedi->global_queues[i]->cq_mem_size +
1687 (QEDI_PAGE_SIZE - 1));
1689 qedi->global_queues[i]->cq_pbl_size =
1690 (qedi->global_queues[i]->cq_mem_size /
1691 QEDI_PAGE_SIZE) * sizeof(void *);
1692 qedi->global_queues[i]->cq_pbl_size =
1693 (qedi->global_queues[i]->cq_pbl_size +
1694 (QEDI_PAGE_SIZE - 1));
1696 qedi->global_queues[i]->cq = dma_alloc_coherent(&qedi->pdev->dev,
1697 qedi->global_queues[i]->cq_mem_size,
1698 &qedi->global_queues[i]->cq_dma,
1701 if (!qedi->global_queues[i]->cq) {
1702 QEDI_WARN(&qedi->dbg_ctx,
1703 "Could not allocate cq.\n");
1705 goto mem_alloc_failure;
1707 qedi->global_queues[i]->cq_pbl = dma_alloc_coherent(&qedi->pdev->dev,
1708 qedi->global_queues[i]->cq_pbl_size,
1709 &qedi->global_queues[i]->cq_pbl_dma,
1712 if (!qedi->global_queues[i]->cq_pbl) {
1713 QEDI_WARN(&qedi->dbg_ctx,
1714 "Could not allocate cq PBL.\n");
1716 goto mem_alloc_failure;
1720 num_pages = qedi->global_queues[i]->cq_mem_size /
1722 page = qedi->global_queues[i]->cq_dma;
1723 pbl = (u32 *)qedi->global_queues[i]->cq_pbl;
1725 while (num_pages--) {
1728 *pbl = (u32)((u64)page >> 32);
1730 page += QEDI_PAGE_SIZE;
1734 list = (u32 *)qedi->p_cpuq;
1737 * The list is built as follows: CQ#0 PBL pointer, RQ#0 PBL pointer,
1738 * CQ#1 PBL pointer, RQ#1 PBL pointer, etc. Each PBL pointer points
1739 * to the physical address which contains an array of pointers to the
1740 * physical addresses of the specific queue pages.
1742 for (i = 0; i < qedi->num_queues; i++) {
1743 *list = (u32)qedi->global_queues[i]->cq_pbl_dma;
1745 *list = (u32)((u64)qedi->global_queues[i]->cq_pbl_dma >> 32);
1750 *list = (u32)((u64)0 >> 32);
1757 qedi_free_global_queues(qedi);
1761 int qedi_alloc_sq(struct qedi_ctx *qedi, struct qedi_endpoint *ep)
1771 /* Calculate appropriate queue and PBL sizes */
1772 ep->sq_mem_size = QEDI_SQ_SIZE * sizeof(struct iscsi_wqe);
1773 ep->sq_mem_size += QEDI_PAGE_SIZE - 1;
1775 ep->sq_pbl_size = (ep->sq_mem_size / QEDI_PAGE_SIZE) * sizeof(void *);
1776 ep->sq_pbl_size = ep->sq_pbl_size + QEDI_PAGE_SIZE;
1778 ep->sq = dma_alloc_coherent(&qedi->pdev->dev, ep->sq_mem_size,
1779 &ep->sq_dma, GFP_KERNEL);
1781 QEDI_WARN(&qedi->dbg_ctx,
1782 "Could not allocate send queue.\n");
1786 ep->sq_pbl = dma_alloc_coherent(&qedi->pdev->dev, ep->sq_pbl_size,
1787 &ep->sq_pbl_dma, GFP_KERNEL);
1789 QEDI_WARN(&qedi->dbg_ctx,
1790 "Could not allocate send queue PBL.\n");
1796 num_pages = ep->sq_mem_size / QEDI_PAGE_SIZE;
1798 pbl = (u32 *)ep->sq_pbl;
1800 while (num_pages--) {
1803 *pbl = (u32)((u64)page >> 32);
1805 page += QEDI_PAGE_SIZE;
1811 dma_free_coherent(&qedi->pdev->dev, ep->sq_mem_size, ep->sq,
1817 void qedi_free_sq(struct qedi_ctx *qedi, struct qedi_endpoint *ep)
1820 dma_free_coherent(&qedi->pdev->dev, ep->sq_pbl_size, ep->sq_pbl,
1823 dma_free_coherent(&qedi->pdev->dev, ep->sq_mem_size, ep->sq,
1827 int qedi_get_task_idx(struct qedi_ctx *qedi)
1832 tmp_idx = find_first_zero_bit(qedi->task_idx_map,
1833 MAX_ISCSI_TASK_ENTRIES);
1835 if (tmp_idx >= MAX_ISCSI_TASK_ENTRIES) {
1836 QEDI_ERR(&qedi->dbg_ctx, "FW task context pool is full.\n");
1841 if (test_and_set_bit(tmp_idx, qedi->task_idx_map))
1848 void qedi_clear_task_idx(struct qedi_ctx *qedi, int idx)
1850 if (!test_and_clear_bit(idx, qedi->task_idx_map))
1851 QEDI_ERR(&qedi->dbg_ctx,
1852 "FW task context, already cleared, tid=0x%x\n", idx);
1855 void qedi_update_itt_map(struct qedi_ctx *qedi, u32 tid, u32 proto_itt,
1856 struct qedi_cmd *cmd)
1858 qedi->itt_map[tid].itt = proto_itt;
1859 qedi->itt_map[tid].p_cmd = cmd;
1861 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN,
1862 "update itt map tid=0x%x, with proto itt=0x%x\n", tid,
1863 qedi->itt_map[tid].itt);
1866 void qedi_get_task_tid(struct qedi_ctx *qedi, u32 itt, s16 *tid)
1870 for (i = 0; i < MAX_ISCSI_TASK_ENTRIES; i++) {
1871 if (qedi->itt_map[i].itt == itt) {
1873 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN,
1874 "Ref itt=0x%x, found at tid=0x%x\n",
1883 void qedi_get_proto_itt(struct qedi_ctx *qedi, u32 tid, u32 *proto_itt)
1885 *proto_itt = qedi->itt_map[tid].itt;
1886 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN,
1887 "Get itt map tid [0x%x with proto itt[0x%x]",
1891 struct qedi_cmd *qedi_get_cmd_from_tid(struct qedi_ctx *qedi, u32 tid)
1893 struct qedi_cmd *cmd = NULL;
1895 if (tid >= MAX_ISCSI_TASK_ENTRIES)
1898 cmd = qedi->itt_map[tid].p_cmd;
1899 if (cmd->task_id != tid)
1902 qedi->itt_map[tid].p_cmd = NULL;
1907 static int qedi_alloc_itt(struct qedi_ctx *qedi)
1909 qedi->itt_map = kcalloc(MAX_ISCSI_TASK_ENTRIES,
1910 sizeof(struct qedi_itt_map), GFP_KERNEL);
1911 if (!qedi->itt_map) {
1912 QEDI_ERR(&qedi->dbg_ctx,
1913 "Unable to allocate itt map array memory\n");
1919 static void qedi_free_itt(struct qedi_ctx *qedi)
1921 kfree(qedi->itt_map);
1924 static struct qed_ll2_cb_ops qedi_ll2_cb_ops = {
1925 .rx_cb = qedi_ll2_rx,
1929 static int qedi_percpu_io_thread(void *arg)
1931 struct qedi_percpu_s *p = arg;
1932 struct qedi_work *work, *tmp;
1933 unsigned long flags;
1934 LIST_HEAD(work_list);
1936 set_user_nice(current, -20);
1938 while (!kthread_should_stop()) {
1939 spin_lock_irqsave(&p->p_work_lock, flags);
1940 while (!list_empty(&p->work_list)) {
1941 list_splice_init(&p->work_list, &work_list);
1942 spin_unlock_irqrestore(&p->p_work_lock, flags);
1944 list_for_each_entry_safe(work, tmp, &work_list, list) {
1945 list_del_init(&work->list);
1946 qedi_fp_process_cqes(work);
1947 if (!work->is_solicited)
1951 spin_lock_irqsave(&p->p_work_lock, flags);
1953 set_current_state(TASK_INTERRUPTIBLE);
1954 spin_unlock_irqrestore(&p->p_work_lock, flags);
1957 __set_current_state(TASK_RUNNING);
1962 static int qedi_cpu_online(unsigned int cpu)
1964 struct qedi_percpu_s *p = this_cpu_ptr(&qedi_percpu);
1965 struct task_struct *thread;
1967 thread = kthread_create_on_node(qedi_percpu_io_thread, (void *)p,
1969 "qedi_thread/%d", cpu);
1971 return PTR_ERR(thread);
1973 kthread_bind(thread, cpu);
1974 p->iothread = thread;
1975 wake_up_process(thread);
1979 static int qedi_cpu_offline(unsigned int cpu)
1981 struct qedi_percpu_s *p = this_cpu_ptr(&qedi_percpu);
1982 struct qedi_work *work, *tmp;
1983 struct task_struct *thread;
1984 unsigned long flags;
1986 spin_lock_irqsave(&p->p_work_lock, flags);
1987 thread = p->iothread;
1990 list_for_each_entry_safe(work, tmp, &p->work_list, list) {
1991 list_del_init(&work->list);
1992 qedi_fp_process_cqes(work);
1993 if (!work->is_solicited)
1997 spin_unlock_irqrestore(&p->p_work_lock, flags);
1999 kthread_stop(thread);
2003 void qedi_reset_host_mtu(struct qedi_ctx *qedi, u16 mtu)
2005 struct qed_ll2_params params;
2007 qedi_recover_all_conns(qedi);
2009 qedi_ops->ll2->stop(qedi->cdev);
2010 qedi_ll2_free_skbs(qedi);
2012 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, "old MTU %u, new MTU %u\n",
2013 qedi->ll2_mtu, mtu);
2014 memset(¶ms, 0, sizeof(params));
2015 qedi->ll2_mtu = mtu;
2016 params.mtu = qedi->ll2_mtu + IPV6_HDR_LEN + TCP_HDR_LEN;
2017 params.drop_ttl0_packets = 0;
2018 params.rx_vlan_stripping = 1;
2019 ether_addr_copy(params.ll2_mac_address, qedi->dev_info.common.hw_mac);
2020 qedi_ops->ll2->start(qedi->cdev, ¶ms);
2024 * qedi_get_nvram_block: - Scan through the iSCSI NVRAM block (while accounting
2025 * for gaps) for the matching absolute-pf-id of the QEDI device.
2027 static struct nvm_iscsi_block *
2028 qedi_get_nvram_block(struct qedi_ctx *qedi)
2033 struct nvm_iscsi_block *block;
2035 pf = qedi->dev_info.common.abs_pf_id;
2036 block = &qedi->iscsi_image->iscsi_cfg.block[0];
2037 for (i = 0; i < NUM_OF_ISCSI_PF_SUPPORTED; i++, block++) {
2038 flags = ((block->id) & NVM_ISCSI_CFG_BLK_CTRL_FLAG_MASK) >>
2039 NVM_ISCSI_CFG_BLK_CTRL_FLAG_OFFSET;
2040 if (flags & (NVM_ISCSI_CFG_BLK_CTRL_FLAG_IS_NOT_EMPTY |
2041 NVM_ISCSI_CFG_BLK_CTRL_FLAG_PF_MAPPED) &&
2042 (pf == (block->id & NVM_ISCSI_CFG_BLK_MAPPED_PF_ID_MASK)
2043 >> NVM_ISCSI_CFG_BLK_MAPPED_PF_ID_OFFSET))
2049 static ssize_t qedi_show_boot_eth_info(void *data, int type, char *buf)
2051 struct qedi_ctx *qedi = data;
2052 struct nvm_iscsi_initiator *initiator;
2054 u32 ipv6_en, dhcp_en, ip_len;
2055 struct nvm_iscsi_block *block;
2056 char *fmt, *ip, *sub, *gw;
2058 block = qedi_get_nvram_block(qedi);
2062 initiator = &block->initiator;
2063 ipv6_en = block->generic.ctrl_flags &
2064 NVM_ISCSI_CFG_GEN_IPV6_ENABLED;
2065 dhcp_en = block->generic.ctrl_flags &
2066 NVM_ISCSI_CFG_GEN_DHCP_TCPIP_CONFIG_ENABLED;
2067 /* Static IP assignments. */
2068 fmt = ipv6_en ? "%pI6\n" : "%pI4\n";
2069 ip = ipv6_en ? initiator->ipv6.addr.byte : initiator->ipv4.addr.byte;
2070 ip_len = ipv6_en ? IPV6_LEN : IPV4_LEN;
2071 sub = ipv6_en ? initiator->ipv6.subnet_mask.byte :
2072 initiator->ipv4.subnet_mask.byte;
2073 gw = ipv6_en ? initiator->ipv6.gateway.byte :
2074 initiator->ipv4.gateway.byte;
2075 /* DHCP IP adjustments. */
2076 fmt = dhcp_en ? "%s\n" : fmt;
2078 ip = ipv6_en ? "0::0" : "0.0.0.0";
2081 ip_len = ipv6_en ? 5 : 8;
2085 case ISCSI_BOOT_ETH_IP_ADDR:
2086 rc = snprintf(buf, ip_len, fmt, ip);
2088 case ISCSI_BOOT_ETH_SUBNET_MASK:
2089 rc = snprintf(buf, ip_len, fmt, sub);
2091 case ISCSI_BOOT_ETH_GATEWAY:
2092 rc = snprintf(buf, ip_len, fmt, gw);
2094 case ISCSI_BOOT_ETH_FLAGS:
2095 rc = snprintf(buf, 3, "%hhd\n",
2096 SYSFS_FLAG_FW_SEL_BOOT);
2098 case ISCSI_BOOT_ETH_INDEX:
2099 rc = snprintf(buf, 3, "0\n");
2101 case ISCSI_BOOT_ETH_MAC:
2102 rc = sysfs_format_mac(buf, qedi->mac, ETH_ALEN);
2104 case ISCSI_BOOT_ETH_VLAN:
2105 rc = snprintf(buf, 12, "%d\n",
2106 GET_FIELD2(initiator->generic_cont0,
2107 NVM_ISCSI_CFG_INITIATOR_VLAN));
2109 case ISCSI_BOOT_ETH_ORIGIN:
2111 rc = snprintf(buf, 3, "3\n");
2121 static umode_t qedi_eth_get_attr_visibility(void *data, int type)
2126 case ISCSI_BOOT_ETH_FLAGS:
2127 case ISCSI_BOOT_ETH_MAC:
2128 case ISCSI_BOOT_ETH_INDEX:
2129 case ISCSI_BOOT_ETH_IP_ADDR:
2130 case ISCSI_BOOT_ETH_SUBNET_MASK:
2131 case ISCSI_BOOT_ETH_GATEWAY:
2132 case ISCSI_BOOT_ETH_ORIGIN:
2133 case ISCSI_BOOT_ETH_VLAN:
2143 static ssize_t qedi_show_boot_ini_info(void *data, int type, char *buf)
2145 struct qedi_ctx *qedi = data;
2146 struct nvm_iscsi_initiator *initiator;
2148 struct nvm_iscsi_block *block;
2150 block = qedi_get_nvram_block(qedi);
2154 initiator = &block->initiator;
2157 case ISCSI_BOOT_INI_INITIATOR_NAME:
2158 rc = sprintf(buf, "%.*s\n", NVM_ISCSI_CFG_ISCSI_NAME_MAX_LEN,
2159 initiator->initiator_name.byte);
2168 static umode_t qedi_ini_get_attr_visibility(void *data, int type)
2173 case ISCSI_BOOT_INI_INITIATOR_NAME:
2184 qedi_show_boot_tgt_info(struct qedi_ctx *qedi, int type,
2185 char *buf, enum qedi_nvm_tgts idx)
2188 u32 ctrl_flags, ipv6_en, chap_en, mchap_en, ip_len;
2189 struct nvm_iscsi_block *block;
2190 char *chap_name, *chap_secret;
2191 char *mchap_name, *mchap_secret;
2193 block = qedi_get_nvram_block(qedi);
2195 goto exit_show_tgt_info;
2197 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_EVT,
2198 "Port:%d, tgt_idx:%d\n",
2199 GET_FIELD2(block->id, NVM_ISCSI_CFG_BLK_MAPPED_PF_ID), idx);
2201 ctrl_flags = block->target[idx].ctrl_flags &
2202 NVM_ISCSI_CFG_TARGET_ENABLED;
2205 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_EVT,
2206 "Target disabled\n");
2207 goto exit_show_tgt_info;
2210 ipv6_en = block->generic.ctrl_flags &
2211 NVM_ISCSI_CFG_GEN_IPV6_ENABLED;
2212 ip_len = ipv6_en ? IPV6_LEN : IPV4_LEN;
2213 chap_en = block->generic.ctrl_flags &
2214 NVM_ISCSI_CFG_GEN_CHAP_ENABLED;
2215 chap_name = chap_en ? block->initiator.chap_name.byte : NULL;
2216 chap_secret = chap_en ? block->initiator.chap_password.byte : NULL;
2218 mchap_en = block->generic.ctrl_flags &
2219 NVM_ISCSI_CFG_GEN_CHAP_MUTUAL_ENABLED;
2220 mchap_name = mchap_en ? block->target[idx].chap_name.byte : NULL;
2221 mchap_secret = mchap_en ? block->target[idx].chap_password.byte : NULL;
2224 case ISCSI_BOOT_TGT_NAME:
2225 rc = sprintf(buf, "%.*s\n", NVM_ISCSI_CFG_ISCSI_NAME_MAX_LEN,
2226 block->target[idx].target_name.byte);
2228 case ISCSI_BOOT_TGT_IP_ADDR:
2230 rc = snprintf(buf, ip_len, "%pI6\n",
2231 block->target[idx].ipv6_addr.byte);
2233 rc = snprintf(buf, ip_len, "%pI4\n",
2234 block->target[idx].ipv4_addr.byte);
2236 case ISCSI_BOOT_TGT_PORT:
2237 rc = snprintf(buf, 12, "%d\n",
2238 GET_FIELD2(block->target[idx].generic_cont0,
2239 NVM_ISCSI_CFG_TARGET_TCP_PORT));
2241 case ISCSI_BOOT_TGT_LUN:
2242 rc = snprintf(buf, 22, "%.*d\n",
2243 block->target[idx].lun.value[1],
2244 block->target[idx].lun.value[0]);
2246 case ISCSI_BOOT_TGT_CHAP_NAME:
2247 rc = sprintf(buf, "%.*s\n", NVM_ISCSI_CFG_CHAP_NAME_MAX_LEN,
2250 case ISCSI_BOOT_TGT_CHAP_SECRET:
2251 rc = sprintf(buf, "%.*s\n", NVM_ISCSI_CFG_CHAP_PWD_MAX_LEN,
2254 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
2255 rc = sprintf(buf, "%.*s\n", NVM_ISCSI_CFG_CHAP_NAME_MAX_LEN,
2258 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
2259 rc = sprintf(buf, "%.*s\n", NVM_ISCSI_CFG_CHAP_PWD_MAX_LEN,
2262 case ISCSI_BOOT_TGT_FLAGS:
2263 rc = snprintf(buf, 3, "%hhd\n", SYSFS_FLAG_FW_SEL_BOOT);
2265 case ISCSI_BOOT_TGT_NIC_ASSOC:
2266 rc = snprintf(buf, 3, "0\n");
2277 static ssize_t qedi_show_boot_tgt_pri_info(void *data, int type, char *buf)
2279 struct qedi_ctx *qedi = data;
2281 return qedi_show_boot_tgt_info(qedi, type, buf, QEDI_NVM_TGT_PRI);
2284 static ssize_t qedi_show_boot_tgt_sec_info(void *data, int type, char *buf)
2286 struct qedi_ctx *qedi = data;
2288 return qedi_show_boot_tgt_info(qedi, type, buf, QEDI_NVM_TGT_SEC);
2291 static umode_t qedi_tgt_get_attr_visibility(void *data, int type)
2296 case ISCSI_BOOT_TGT_NAME:
2297 case ISCSI_BOOT_TGT_IP_ADDR:
2298 case ISCSI_BOOT_TGT_PORT:
2299 case ISCSI_BOOT_TGT_LUN:
2300 case ISCSI_BOOT_TGT_CHAP_NAME:
2301 case ISCSI_BOOT_TGT_CHAP_SECRET:
2302 case ISCSI_BOOT_TGT_REV_CHAP_NAME:
2303 case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
2304 case ISCSI_BOOT_TGT_NIC_ASSOC:
2305 case ISCSI_BOOT_TGT_FLAGS:
2315 static void qedi_boot_release(void *data)
2317 struct qedi_ctx *qedi = data;
2319 scsi_host_put(qedi->shost);
2322 static int qedi_get_boot_info(struct qedi_ctx *qedi)
2326 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
2327 "Get NVM iSCSI CFG image\n");
2328 ret = qedi_ops->common->nvm_get_image(qedi->cdev,
2329 QED_NVM_IMAGE_ISCSI_CFG,
2330 (char *)qedi->iscsi_image,
2331 sizeof(struct qedi_nvm_iscsi_image));
2333 QEDI_ERR(&qedi->dbg_ctx,
2334 "Could not get NVM image. ret = %d\n", ret);
2339 static int qedi_setup_boot_info(struct qedi_ctx *qedi)
2341 struct iscsi_boot_kobj *boot_kobj;
2343 if (qedi_get_boot_info(qedi))
2346 qedi->boot_kset = iscsi_boot_create_host_kset(qedi->shost->host_no);
2347 if (!qedi->boot_kset)
2350 if (!scsi_host_get(qedi->shost))
2353 boot_kobj = iscsi_boot_create_target(qedi->boot_kset, 0, qedi,
2354 qedi_show_boot_tgt_pri_info,
2355 qedi_tgt_get_attr_visibility,
2360 if (!scsi_host_get(qedi->shost))
2363 boot_kobj = iscsi_boot_create_target(qedi->boot_kset, 1, qedi,
2364 qedi_show_boot_tgt_sec_info,
2365 qedi_tgt_get_attr_visibility,
2370 if (!scsi_host_get(qedi->shost))
2373 boot_kobj = iscsi_boot_create_initiator(qedi->boot_kset, 0, qedi,
2374 qedi_show_boot_ini_info,
2375 qedi_ini_get_attr_visibility,
2380 if (!scsi_host_get(qedi->shost))
2383 boot_kobj = iscsi_boot_create_ethernet(qedi->boot_kset, 0, qedi,
2384 qedi_show_boot_eth_info,
2385 qedi_eth_get_attr_visibility,
2393 scsi_host_put(qedi->shost);
2395 iscsi_boot_destroy_kset(qedi->boot_kset);
2399 static pci_ers_result_t qedi_io_error_detected(struct pci_dev *pdev,
2400 pci_channel_state_t state)
2402 struct qedi_ctx *qedi = pci_get_drvdata(pdev);
2404 QEDI_ERR(&qedi->dbg_ctx, "%s: PCI error detected [%d]\n",
2407 if (test_and_set_bit(QEDI_IN_RECOVERY, &qedi->flags)) {
2408 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
2409 "Recovery already in progress.\n");
2410 return PCI_ERS_RESULT_NONE;
2413 qedi_ops->common->recovery_process(qedi->cdev);
2415 return PCI_ERS_RESULT_CAN_RECOVER;
2418 static void __qedi_remove(struct pci_dev *pdev, int mode)
2420 struct qedi_ctx *qedi = pci_get_drvdata(pdev);
2424 if (mode == QEDI_MODE_SHUTDOWN)
2425 iscsi_host_for_each_session(qedi->shost,
2426 qedi_clear_session_ctx);
2428 if (mode == QEDI_MODE_NORMAL || mode == QEDI_MODE_SHUTDOWN) {
2429 if (qedi->tmf_thread) {
2430 flush_workqueue(qedi->tmf_thread);
2431 destroy_workqueue(qedi->tmf_thread);
2432 qedi->tmf_thread = NULL;
2435 if (qedi->offload_thread) {
2436 flush_workqueue(qedi->offload_thread);
2437 destroy_workqueue(qedi->offload_thread);
2438 qedi->offload_thread = NULL;
2442 #ifdef CONFIG_DEBUG_FS
2443 qedi_dbg_host_exit(&qedi->dbg_ctx);
2445 if (!test_bit(QEDI_IN_OFFLINE, &qedi->flags))
2446 qedi_ops->common->set_power_state(qedi->cdev, PCI_D0);
2448 qedi_sync_free_irqs(qedi);
2450 if (!test_bit(QEDI_IN_OFFLINE, &qedi->flags)) {
2452 rval = qedi_ops->stop(qedi->cdev);
2458 qedi_ops->ll2->stop(qedi->cdev);
2461 cancel_delayed_work_sync(&qedi->recovery_work);
2462 cancel_delayed_work_sync(&qedi->board_disable_work);
2464 qedi_free_iscsi_pf_param(qedi);
2466 rval = qedi_ops->common->update_drv_state(qedi->cdev, false);
2468 QEDI_ERR(&qedi->dbg_ctx, "Failed to send drv state to MFW\n");
2470 if (!test_bit(QEDI_IN_OFFLINE, &qedi->flags)) {
2471 qedi_ops->common->slowpath_stop(qedi->cdev);
2472 qedi_ops->common->remove(qedi->cdev);
2475 qedi_destroy_fp(qedi);
2477 if (mode == QEDI_MODE_NORMAL || mode == QEDI_MODE_SHUTDOWN) {
2478 qedi_release_cid_que(qedi);
2479 qedi_cm_free_mem(qedi);
2480 qedi_free_uio(qedi->udev);
2481 qedi_free_itt(qedi);
2483 if (qedi->ll2_recv_thread) {
2484 kthread_stop(qedi->ll2_recv_thread);
2485 qedi->ll2_recv_thread = NULL;
2487 qedi_ll2_free_skbs(qedi);
2489 if (qedi->boot_kset)
2490 iscsi_boot_destroy_kset(qedi->boot_kset);
2492 iscsi_host_remove(qedi->shost);
2493 iscsi_host_free(qedi->shost);
2497 static void qedi_board_disable_work(struct work_struct *work)
2499 struct qedi_ctx *qedi =
2500 container_of(work, struct qedi_ctx,
2501 board_disable_work.work);
2503 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
2504 "Fan failure, Unloading firmware context.\n");
2506 if (test_and_set_bit(QEDI_IN_SHUTDOWN, &qedi->flags))
2509 __qedi_remove(qedi->pdev, QEDI_MODE_SHUTDOWN);
2512 static void qedi_shutdown(struct pci_dev *pdev)
2514 struct qedi_ctx *qedi = pci_get_drvdata(pdev);
2516 QEDI_ERR(&qedi->dbg_ctx, "%s: Shutdown qedi\n", __func__);
2517 if (test_and_set_bit(QEDI_IN_SHUTDOWN, &qedi->flags))
2519 __qedi_remove(pdev, QEDI_MODE_SHUTDOWN);
2522 static int qedi_suspend(struct pci_dev *pdev, pm_message_t state)
2524 struct qedi_ctx *qedi;
2527 QEDI_ERR(NULL, "pdev is NULL.\n");
2531 qedi = pci_get_drvdata(pdev);
2533 QEDI_ERR(&qedi->dbg_ctx, "%s: Device does not support suspend operation\n", __func__);
2538 static int __qedi_probe(struct pci_dev *pdev, int mode)
2540 struct qedi_ctx *qedi;
2541 struct qed_ll2_params params;
2545 struct qed_link_params link_params;
2546 struct qed_slowpath_params sp_params;
2547 struct qed_probe_params qed_params;
2548 void *task_start, *task_end;
2552 if (mode != QEDI_MODE_RECOVERY) {
2553 qedi = qedi_host_alloc(pdev);
2559 qedi = pci_get_drvdata(pdev);
2563 if (mode == QEDI_MODE_RECOVERY)
2566 memset(&qed_params, 0, sizeof(qed_params));
2567 qed_params.protocol = QED_PROTOCOL_ISCSI;
2568 qed_params.dp_module = qedi_qed_debug;
2569 qed_params.dp_level = dp_level;
2570 qed_params.is_vf = is_vf;
2571 qedi->cdev = qedi_ops->common->probe(pdev, &qed_params);
2573 if (mode == QEDI_MODE_RECOVERY && retry) {
2574 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
2575 "Retry %d initialize hardware\n", retry);
2581 QEDI_ERR(&qedi->dbg_ctx, "Cannot initialize hardware\n");
2585 set_bit(QEDI_ERR_ATTN_CLR_EN, &qedi->qedi_err_flags);
2586 set_bit(QEDI_ERR_IS_RECOVERABLE, &qedi->qedi_err_flags);
2587 atomic_set(&qedi->link_state, QEDI_LINK_DOWN);
2589 rc = qedi_ops->fill_dev_info(qedi->cdev, &qedi->dev_info);
2593 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
2594 "dev_info: num_hwfns=%d affin_hwfn_idx=%d.\n",
2595 qedi->dev_info.common.num_hwfns,
2596 qedi_ops->common->get_affin_hwfn_idx(qedi->cdev));
2598 rc = qedi_set_iscsi_pf_param(qedi);
2601 QEDI_ERR(&qedi->dbg_ctx,
2602 "Set iSCSI pf param fail\n");
2606 qedi_ops->common->update_pf_params(qedi->cdev, &qedi->pf_params);
2608 rc = qedi_prepare_fp(qedi);
2610 QEDI_ERR(&qedi->dbg_ctx, "Cannot start slowpath.\n");
2611 goto free_pf_params;
2614 /* Start the Slowpath-process */
2615 memset(&sp_params, 0, sizeof(struct qed_slowpath_params));
2616 sp_params.int_mode = QED_INT_MODE_MSIX;
2617 sp_params.drv_major = QEDI_DRIVER_MAJOR_VER;
2618 sp_params.drv_minor = QEDI_DRIVER_MINOR_VER;
2619 sp_params.drv_rev = QEDI_DRIVER_REV_VER;
2620 sp_params.drv_eng = QEDI_DRIVER_ENG_VER;
2621 strlcpy(sp_params.name, "qedi iSCSI", QED_DRV_VER_STR_SIZE);
2622 rc = qedi_ops->common->slowpath_start(qedi->cdev, &sp_params);
2624 QEDI_ERR(&qedi->dbg_ctx, "Cannot start slowpath\n");
2628 /* update_pf_params needs to be called before and after slowpath
2631 qedi_ops->common->update_pf_params(qedi->cdev, &qedi->pf_params);
2633 rc = qedi_setup_int(qedi);
2635 goto stop_iscsi_func;
2637 qedi_ops->common->set_power_state(qedi->cdev, PCI_D0);
2639 /* Learn information crucial for qedi to progress */
2640 rc = qedi_ops->fill_dev_info(qedi->cdev, &qedi->dev_info);
2642 goto stop_iscsi_func;
2644 /* Record BDQ producer doorbell addresses */
2645 qedi->bdq_primary_prod = qedi->dev_info.primary_dbq_rq_addr;
2646 qedi->bdq_secondary_prod = qedi->dev_info.secondary_bdq_rq_addr;
2647 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_DISC,
2648 "BDQ primary_prod=%p secondary_prod=%p.\n",
2649 qedi->bdq_primary_prod,
2650 qedi->bdq_secondary_prod);
2653 * We need to write the number of BDs in the BDQ we've preallocated so
2654 * the f/w will do a prefetch and we'll get an unsolicited CQE when a
2657 qedi->bdq_prod_idx = QEDI_BDQ_NUM;
2658 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_DISC,
2659 "Writing %d to primary and secondary BDQ doorbell registers.\n",
2660 qedi->bdq_prod_idx);
2661 writew(qedi->bdq_prod_idx, qedi->bdq_primary_prod);
2662 readw(qedi->bdq_primary_prod);
2663 writew(qedi->bdq_prod_idx, qedi->bdq_secondary_prod);
2664 readw(qedi->bdq_secondary_prod);
2666 ether_addr_copy(qedi->mac, qedi->dev_info.common.hw_mac);
2667 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_DISC, "MAC address is %pM.\n",
2670 snprintf(host_buf, sizeof(host_buf), "host_%d", qedi->shost->host_no);
2671 qedi_ops->common->set_name(qedi->cdev, host_buf);
2673 qedi_ops->register_ops(qedi->cdev, &qedi_cb_ops, qedi);
2675 memset(¶ms, 0, sizeof(params));
2676 params.mtu = DEF_PATH_MTU + IPV6_HDR_LEN + TCP_HDR_LEN;
2677 qedi->ll2_mtu = DEF_PATH_MTU;
2678 params.drop_ttl0_packets = 0;
2679 params.rx_vlan_stripping = 1;
2680 ether_addr_copy(params.ll2_mac_address, qedi->dev_info.common.hw_mac);
2682 if (mode != QEDI_MODE_RECOVERY) {
2683 /* set up rx path */
2684 INIT_LIST_HEAD(&qedi->ll2_skb_list);
2685 spin_lock_init(&qedi->ll2_lock);
2686 /* start qedi context */
2687 spin_lock_init(&qedi->hba_lock);
2688 spin_lock_init(&qedi->task_idx_lock);
2689 mutex_init(&qedi->stats_lock);
2691 qedi_ops->ll2->register_cb_ops(qedi->cdev, &qedi_ll2_cb_ops, qedi);
2692 qedi_ops->ll2->start(qedi->cdev, ¶ms);
2694 if (mode != QEDI_MODE_RECOVERY) {
2695 qedi->ll2_recv_thread = kthread_run(qedi_ll2_recv_thread,
2700 rc = qedi_ops->start(qedi->cdev, &qedi->tasks,
2701 qedi, qedi_iscsi_event_cb);
2704 QEDI_ERR(&qedi->dbg_ctx, "Cannot start iSCSI function\n");
2708 task_start = qedi_get_task_mem(&qedi->tasks, 0);
2709 task_end = qedi_get_task_mem(&qedi->tasks, MAX_TID_BLOCKS_ISCSI - 1);
2710 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_DISC,
2711 "Task context start=%p, end=%p block_size=%u.\n",
2712 task_start, task_end, qedi->tasks.size);
2714 memset(&link_params, 0, sizeof(link_params));
2715 link_params.link_up = true;
2716 rc = qedi_ops->common->set_link(qedi->cdev, &link_params);
2718 QEDI_WARN(&qedi->dbg_ctx, "Link set up failed.\n");
2719 atomic_set(&qedi->link_state, QEDI_LINK_DOWN);
2722 #ifdef CONFIG_DEBUG_FS
2723 qedi_dbg_host_init(&qedi->dbg_ctx, qedi_debugfs_ops,
2726 QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
2727 "QLogic FastLinQ iSCSI Module qedi %s, FW %d.%d.%d.%d\n",
2728 QEDI_MODULE_VERSION, FW_MAJOR_VERSION, FW_MINOR_VERSION,
2729 FW_REVISION_VERSION, FW_ENGINEERING_VERSION);
2731 if (mode == QEDI_MODE_NORMAL) {
2732 if (iscsi_host_add(qedi->shost, &pdev->dev)) {
2733 QEDI_ERR(&qedi->dbg_ctx,
2734 "Could not add iscsi host\n");
2739 /* Allocate uio buffers */
2740 rc = qedi_alloc_uio_rings(qedi);
2742 QEDI_ERR(&qedi->dbg_ctx,
2743 "UIO alloc ring failed err=%d\n", rc);
2747 rc = qedi_init_uio(qedi);
2749 QEDI_ERR(&qedi->dbg_ctx,
2750 "UIO init failed, err=%d\n", rc);
2754 /* host the array on iscsi_conn */
2755 rc = qedi_setup_cid_que(qedi);
2757 QEDI_ERR(&qedi->dbg_ctx,
2758 "Could not setup cid que\n");
2762 rc = qedi_cm_alloc_mem(qedi);
2764 QEDI_ERR(&qedi->dbg_ctx,
2765 "Could not alloc cm memory\n");
2769 rc = qedi_alloc_itt(qedi);
2771 QEDI_ERR(&qedi->dbg_ctx,
2772 "Could not alloc itt memory\n");
2776 sprintf(host_buf, "host_%d", qedi->shost->host_no);
2777 qedi->tmf_thread = create_singlethread_workqueue(host_buf);
2778 if (!qedi->tmf_thread) {
2779 QEDI_ERR(&qedi->dbg_ctx,
2780 "Unable to start tmf thread!\n");
2785 sprintf(host_buf, "qedi_ofld%d", qedi->shost->host_no);
2786 qedi->offload_thread = create_workqueue(host_buf);
2787 if (!qedi->offload_thread) {
2788 QEDI_ERR(&qedi->dbg_ctx,
2789 "Unable to start offload thread!\n");
2791 goto free_tmf_thread;
2794 INIT_DELAYED_WORK(&qedi->recovery_work, qedi_recovery_handler);
2795 INIT_DELAYED_WORK(&qedi->board_disable_work,
2796 qedi_board_disable_work);
2798 /* F/w needs 1st task context memory entry for performance */
2799 set_bit(QEDI_RESERVE_TASK_ID, qedi->task_idx_map);
2800 atomic_set(&qedi->num_offloads, 0);
2802 if (qedi_setup_boot_info(qedi))
2803 QEDI_ERR(&qedi->dbg_ctx,
2804 "No iSCSI boot target configured\n");
2806 rc = qedi_ops->common->update_drv_state(qedi->cdev, true);
2808 QEDI_ERR(&qedi->dbg_ctx,
2809 "Failed to send drv state to MFW\n");
2816 destroy_workqueue(qedi->tmf_thread);
2818 qedi_release_cid_que(qedi);
2820 qedi_free_uio(qedi->udev);
2822 #ifdef CONFIG_DEBUG_FS
2823 qedi_dbg_host_exit(&qedi->dbg_ctx);
2825 iscsi_host_remove(qedi->shost);
2827 qedi_ops->stop(qedi->cdev);
2829 qedi_ops->common->slowpath_stop(qedi->cdev);
2831 qedi_ops->common->remove(qedi->cdev);
2833 qedi_free_iscsi_pf_param(qedi);
2835 iscsi_host_free(qedi->shost);
2840 static void qedi_mark_conn_recovery(struct iscsi_cls_session *cls_session)
2842 struct iscsi_session *session = cls_session->dd_data;
2843 struct iscsi_conn *conn = session->leadconn;
2844 struct qedi_conn *qedi_conn = conn->dd_data;
2846 iscsi_conn_failure(qedi_conn->cls_conn->dd_data, ISCSI_ERR_CONN_FAILED);
2849 static void qedi_recovery_handler(struct work_struct *work)
2851 struct qedi_ctx *qedi =
2852 container_of(work, struct qedi_ctx, recovery_work.work);
2854 iscsi_host_for_each_session(qedi->shost, qedi_mark_conn_recovery);
2856 /* Call common_ops->recovery_prolog to allow the MFW to quiesce
2857 * any PCI transactions.
2859 qedi_ops->common->recovery_prolog(qedi->cdev);
2861 __qedi_remove(qedi->pdev, QEDI_MODE_RECOVERY);
2862 __qedi_probe(qedi->pdev, QEDI_MODE_RECOVERY);
2863 clear_bit(QEDI_IN_RECOVERY, &qedi->flags);
2866 static int qedi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
2868 return __qedi_probe(pdev, QEDI_MODE_NORMAL);
2871 static void qedi_remove(struct pci_dev *pdev)
2873 __qedi_remove(pdev, QEDI_MODE_NORMAL);
2876 static struct pci_device_id qedi_pci_tbl[] = {
2877 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, 0x165E) },
2878 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, 0x8084) },
2881 MODULE_DEVICE_TABLE(pci, qedi_pci_tbl);
2883 static enum cpuhp_state qedi_cpuhp_state;
2885 static struct pci_error_handlers qedi_err_handler = {
2886 .error_detected = qedi_io_error_detected,
2889 static struct pci_driver qedi_pci_driver = {
2890 .name = QEDI_MODULE_NAME,
2891 .id_table = qedi_pci_tbl,
2892 .probe = qedi_probe,
2893 .remove = qedi_remove,
2894 .shutdown = qedi_shutdown,
2895 .err_handler = &qedi_err_handler,
2896 .suspend = qedi_suspend,
2899 static int __init qedi_init(void)
2901 struct qedi_percpu_s *p;
2904 qedi_ops = qed_get_iscsi_ops();
2906 QEDI_ERR(NULL, "Failed to get qed iSCSI operations\n");
2910 #ifdef CONFIG_DEBUG_FS
2911 qedi_dbg_init("qedi");
2914 qedi_scsi_transport = iscsi_register_transport(&qedi_iscsi_transport);
2915 if (!qedi_scsi_transport) {
2916 QEDI_ERR(NULL, "Could not register qedi transport");
2918 goto exit_qedi_init_1;
2921 for_each_possible_cpu(cpu) {
2922 p = &per_cpu(qedi_percpu, cpu);
2923 INIT_LIST_HEAD(&p->work_list);
2924 spin_lock_init(&p->p_work_lock);
2928 rc = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "scsi/qedi:online",
2929 qedi_cpu_online, qedi_cpu_offline);
2931 goto exit_qedi_init_2;
2932 qedi_cpuhp_state = rc;
2934 rc = pci_register_driver(&qedi_pci_driver);
2936 QEDI_ERR(NULL, "Failed to register driver\n");
2943 cpuhp_remove_state(qedi_cpuhp_state);
2945 iscsi_unregister_transport(&qedi_iscsi_transport);
2947 #ifdef CONFIG_DEBUG_FS
2950 qed_put_iscsi_ops();
2954 static void __exit qedi_cleanup(void)
2956 pci_unregister_driver(&qedi_pci_driver);
2957 cpuhp_remove_state(qedi_cpuhp_state);
2958 iscsi_unregister_transport(&qedi_iscsi_transport);
2960 #ifdef CONFIG_DEBUG_FS
2963 qed_put_iscsi_ops();
2966 MODULE_DESCRIPTION("QLogic FastLinQ 4xxxx iSCSI Module");
2967 MODULE_LICENSE("GPL");
2968 MODULE_AUTHOR("QLogic Corporation");
2969 MODULE_VERSION(QEDI_MODULE_VERSION);
2970 module_init(qedi_init);
2971 module_exit(qedi_cleanup);