1 /*******************************************************************************
3 * Copyright (c) 2015-2016 Intel Corporation. All rights reserved.
5 * This software is available to you under a choice of one of two
6 * licenses. You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this source tree, or the
9 * OpenFabrics.org BSD license below:
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials
22 * provided with the distribution.
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
33 *******************************************************************************/
37 #include <linux/netdevice.h>
38 #include <linux/inetdevice.h>
39 #include <linux/spinlock.h>
40 #include <linux/kernel.h>
41 #include <linux/delay.h>
42 #include <linux/pci.h>
43 #include <linux/dma-mapping.h>
44 #include <linux/workqueue.h>
45 #include <linux/slab.h>
47 #include <linux/crc32c.h>
48 #include <rdma/ib_smi.h>
49 #include <rdma/ib_verbs.h>
50 #include <rdma/ib_pack.h>
51 #include <rdma/rdma_cm.h>
52 #include <rdma/iw_cm.h>
53 #include <crypto/hash.h>
55 #include "i40iw_status.h"
56 #include "i40iw_osdep.h"
58 #include "i40iw_hmc.h"
60 #include <i40e_client.h>
61 #include "i40iw_type.h"
63 #include <rdma/i40iw-abi.h>
64 #include "i40iw_pble.h"
65 #include "i40iw_verbs.h"
67 #include "i40iw_user.h"
68 #include "i40iw_puda.h"
70 #define I40IW_FW_VERSION 2
71 #define I40IW_HW_VERSION 2
73 #define I40IW_ARP_ADD 1
74 #define I40IW_ARP_DELETE 2
75 #define I40IW_ARP_RESOLVE 3
77 #define I40IW_MACIP_ADD 1
78 #define I40IW_MACIP_DELETE 2
80 #define IW_CCQ_SIZE (I40IW_CQP_SW_SQSIZE_2048 + 1)
81 #define IW_CEQ_SIZE 2048
82 #define IW_AEQ_SIZE 2048
84 #define RX_BUF_SIZE (1536 + 8)
85 #define IW_REG0_SIZE (4 * 1024)
86 #define IW_TX_TIMEOUT (6 * HZ)
87 #define IW_FIRST_QPN 1
88 #define IW_SW_CONTEXT_ALIGN 1024
90 #define MAX_DPC_ITERATIONS 128
92 #define I40IW_EVENT_TIMEOUT 100000
93 #define I40IW_VCHNL_EVENT_TIMEOUT 100000
95 #define I40IW_NO_VLAN 0xffff
96 #define I40IW_NO_QSET 0xffff
98 /* access to mcast filter list */
99 #define IW_ADD_MCAST false
100 #define IW_DEL_MCAST true
102 #define I40IW_DRV_OPT_ENABLE_MPA_VER_0 0x00000001
103 #define I40IW_DRV_OPT_DISABLE_MPA_CRC 0x00000002
104 #define I40IW_DRV_OPT_DISABLE_FIRST_WRITE 0x00000004
105 #define I40IW_DRV_OPT_DISABLE_INTF 0x00000008
106 #define I40IW_DRV_OPT_ENABLE_MSI 0x00000010
107 #define I40IW_DRV_OPT_DUAL_LOGICAL_PORT 0x00000020
108 #define I40IW_DRV_OPT_NO_INLINE_DATA 0x00000080
109 #define I40IW_DRV_OPT_DISABLE_INT_MOD 0x00000100
110 #define I40IW_DRV_OPT_DISABLE_VIRT_WQ 0x00000200
111 #define I40IW_DRV_OPT_ENABLE_PAU 0x00000400
112 #define I40IW_DRV_OPT_MCAST_LOGPORT_MAP 0x00000800
114 #define IW_HMC_OBJ_TYPE_NUM ARRAY_SIZE(iw_hmc_obj_types)
115 #define IW_CFG_FPM_QP_COUNT 32768
116 #define I40IW_MAX_PAGES_PER_FMR 512
117 #define I40IW_MIN_PAGES_PER_FMR 1
118 #define I40IW_CQP_COMPL_RQ_WQE_FLUSHED 2
119 #define I40IW_CQP_COMPL_SQ_WQE_FLUSHED 3
120 #define I40IW_CQP_COMPL_RQ_SQ_WQE_FLUSHED 4
122 struct i40iw_cqp_compl_info {
130 #define i40iw_pr_err(fmt, args ...) pr_err("%s: "fmt, __func__, ## args)
132 #define i40iw_pr_info(fmt, args ...) pr_info("%s: " fmt, __func__, ## args)
134 #define i40iw_pr_warn(fmt, args ...) pr_warn("%s: " fmt, __func__, ## args)
136 struct i40iw_cqp_request {
137 struct cqp_commands_info info;
138 wait_queue_head_t waitq;
139 struct list_head list;
141 void (*callback_fcn)(struct i40iw_cqp_request*, u32);
143 struct i40iw_cqp_compl_info compl_info;
150 struct i40iw_sc_cqp sc_cqp;
151 spinlock_t req_lock; /*cqp request list */
152 wait_queue_head_t waitq;
153 struct i40iw_dma_mem sq;
154 struct i40iw_dma_mem host_ctx;
156 struct i40iw_cqp_request *cqp_requests;
157 struct list_head cqp_avail_reqs;
158 struct list_head cqp_pending_reqs;
164 struct i40iw_sc_cq sc_cq;
165 spinlock_t lock; /* ccq control */
166 wait_queue_head_t waitq;
167 struct i40iw_dma_mem mem_cq;
168 struct i40iw_dma_mem shadow_area;
172 struct i40iw_sc_ceq sc_ceq;
173 struct i40iw_dma_mem mem;
176 struct i40iw_device *iwdev;
177 struct tasklet_struct dpc_tasklet;
181 struct i40iw_sc_aeq sc_aeq;
182 struct i40iw_dma_mem mem;
185 struct i40iw_arp_entry {
187 u8 mac_addr[ETH_ALEN];
190 enum init_completion_state {
205 struct i40iw_msix_vector {
212 struct l2params_work {
213 struct work_struct work;
214 struct i40iw_device *iwdev;
215 struct i40iw_l2params l2params;
218 #define I40IW_MSIX_TABLE_SIZE 65
220 struct virtchnl_work {
221 struct work_struct work;
223 struct i40iw_cqp_request *cqp_request;
224 struct i40iw_virtchnl_work_info work_info;
228 struct i40e_qvlist_info;
230 struct i40iw_device {
231 struct i40iw_ib_device *iwibdev;
232 struct net_device *netdev;
233 wait_queue_head_t vchnl_waitq;
234 struct i40iw_sc_dev sc_dev;
235 struct i40iw_sc_vsi vsi;
236 struct i40iw_handler *hdl;
237 struct i40e_info *ldev;
238 struct i40e_client *client;
240 struct i40iw_cm_core cm_core;
242 unsigned long *allocated_qps;
243 unsigned long *allocated_cqs;
244 unsigned long *allocated_mrs;
245 unsigned long *allocated_pds;
246 unsigned long *allocated_arps;
247 struct i40iw_qp **qp_table;
250 struct i40iw_msix_vector *iw_msixtbl;
251 struct i40e_qvlist_info *iw_qvlist;
253 struct i40iw_hmc_pble_rsrc *pble_rsrc;
254 struct i40iw_arp_entry *arp_table;
255 struct i40iw_cqp cqp;
256 struct i40iw_ccq ccq;
258 struct i40iw_ceq *ceqlist;
259 struct i40iw_aeq aeq;
262 spinlock_t resource_lock; /* hw resource access */
263 spinlock_t qptable_lock;
266 u32 of_device_registered;
268 u32 device_cap_flags;
269 unsigned long db_start;
276 bool push_mode; /* Initialized from parameter passed to driver */
279 struct mutex pbl_mutex;
280 struct tasklet_struct dpc_tasklet;
281 struct workqueue_struct *virtchnl_wq;
282 struct virtchnl_work virtchnl_w[I40IW_MAX_PE_ENABLED_VF_COUNT];
283 struct i40iw_dma_mem obj_mem;
284 struct i40iw_dma_mem obj_next;
287 struct workqueue_struct *param_wq;
288 atomic_t params_busy;
289 enum init_completion_state init_state;
290 u16 mac_ip_table_idx;
311 wait_queue_head_t close_wq;
312 atomic64_t use_count;
315 struct i40iw_ib_device {
316 struct ib_device ibdev;
317 struct i40iw_device *iwdev;
320 struct i40iw_handler {
321 struct list_head list;
322 struct i40e_client *client;
323 struct i40iw_device device;
324 struct i40e_info ldev;
328 * to_iwdev - get device
331 static inline struct i40iw_device *to_iwdev(struct ib_device *ibdev)
333 return container_of(ibdev, struct i40iw_ib_device, ibdev)->iwdev;
337 * to_ucontext - get user context
338 * @ibucontext: ib user context
340 static inline struct i40iw_ucontext *to_ucontext(struct ib_ucontext *ibucontext)
342 return container_of(ibucontext, struct i40iw_ucontext, ibucontext);
346 * to_iwpd - get protection domain
349 static inline struct i40iw_pd *to_iwpd(struct ib_pd *ibpd)
351 return container_of(ibpd, struct i40iw_pd, ibpd);
355 * to_iwmr - get device memory region
356 * @ibdev: ib memory region
358 static inline struct i40iw_mr *to_iwmr(struct ib_mr *ibmr)
360 return container_of(ibmr, struct i40iw_mr, ibmr);
364 * to_iwmr_from_ibfmr - get device memory region
367 static inline struct i40iw_mr *to_iwmr_from_ibfmr(struct ib_fmr *ibfmr)
369 return container_of(ibfmr, struct i40iw_mr, ibfmr);
373 * to_iwmw - get device memory window
374 * @ibmw: ib memory window
376 static inline struct i40iw_mr *to_iwmw(struct ib_mw *ibmw)
378 return container_of(ibmw, struct i40iw_mr, ibmw);
382 * to_iwcq - get completion queue
385 static inline struct i40iw_cq *to_iwcq(struct ib_cq *ibcq)
387 return container_of(ibcq, struct i40iw_cq, ibcq);
391 * to_iwqp - get device qp
394 static inline struct i40iw_qp *to_iwqp(struct ib_qp *ibqp)
396 return container_of(ibqp, struct i40iw_qp, ibqp);
400 void i40iw_add_ref(struct ib_qp *);
401 void i40iw_rem_ref(struct ib_qp *);
402 struct ib_qp *i40iw_get_qp(struct ib_device *, int);
404 void i40iw_flush_wqes(struct i40iw_device *iwdev,
405 struct i40iw_qp *qp);
407 void i40iw_manage_arp_cache(struct i40iw_device *iwdev,
408 unsigned char *mac_addr,
413 int i40iw_manage_apbvt(struct i40iw_device *iwdev,
414 u16 accel_local_port,
417 struct i40iw_cqp_request *i40iw_get_cqp_request(struct i40iw_cqp *cqp, bool wait);
418 void i40iw_free_cqp_request(struct i40iw_cqp *cqp, struct i40iw_cqp_request *cqp_request);
419 void i40iw_put_cqp_request(struct i40iw_cqp *cqp, struct i40iw_cqp_request *cqp_request);
422 * i40iw_alloc_resource - allocate a resource
423 * @iwdev: device pointer
424 * @resource_array: resource bit array:
425 * @max_resources: maximum resource number
426 * @req_resources_num: Allocated resource number
427 * @next: next free id
429 static inline int i40iw_alloc_resource(struct i40iw_device *iwdev,
430 unsigned long *resource_array,
432 u32 *req_resource_num,
438 spin_lock_irqsave(&iwdev->resource_lock, flags);
439 resource_num = find_next_zero_bit(resource_array, max_resources, *next);
440 if (resource_num >= max_resources) {
441 resource_num = find_first_zero_bit(resource_array, max_resources);
442 if (resource_num >= max_resources) {
443 spin_unlock_irqrestore(&iwdev->resource_lock, flags);
447 set_bit(resource_num, resource_array);
448 *next = resource_num + 1;
449 if (*next == max_resources)
451 *req_resource_num = resource_num;
452 spin_unlock_irqrestore(&iwdev->resource_lock, flags);
458 * i40iw_is_resource_allocated - detrmine if resource is
460 * @iwdev: device pointer
461 * @resource_array: resource array for the resource_num
462 * @resource_num: resource number to check
464 static inline bool i40iw_is_resource_allocated(struct i40iw_device *iwdev,
465 unsigned long *resource_array,
471 spin_lock_irqsave(&iwdev->resource_lock, flags);
473 bit_is_set = test_bit(resource_num, resource_array);
474 spin_unlock_irqrestore(&iwdev->resource_lock, flags);
480 * i40iw_free_resource - free a resource
481 * @iwdev: device pointer
482 * @resource_array: resource array for the resource_num
483 * @resource_num: resource number to free
485 static inline void i40iw_free_resource(struct i40iw_device *iwdev,
486 unsigned long *resource_array,
491 spin_lock_irqsave(&iwdev->resource_lock, flags);
492 clear_bit(resource_num, resource_array);
493 spin_unlock_irqrestore(&iwdev->resource_lock, flags);
497 * to_iwhdl - Get the handler from the device pointer
498 * @iwdev: device pointer
500 static inline struct i40iw_handler *to_iwhdl(struct i40iw_device *iw_dev)
502 return container_of(iw_dev, struct i40iw_handler, device);
505 struct i40iw_handler *i40iw_find_netdev(struct net_device *netdev);
508 * iw_init_resources -
510 u32 i40iw_initialize_hw_resources(struct i40iw_device *iwdev);
512 int i40iw_register_rdma_device(struct i40iw_device *iwdev);
513 void i40iw_port_ibevent(struct i40iw_device *iwdev);
514 void i40iw_cm_disconn(struct i40iw_qp *iwqp);
515 void i40iw_cm_disconn_worker(void *);
516 int mini_cm_recv_pkt(struct i40iw_cm_core *, struct i40iw_device *,
519 enum i40iw_status_code i40iw_handle_cqp_op(struct i40iw_device *iwdev,
520 struct i40iw_cqp_request *cqp_request);
521 enum i40iw_status_code i40iw_add_mac_addr(struct i40iw_device *iwdev,
522 u8 *mac_addr, u8 *mac_index);
523 int i40iw_modify_qp(struct ib_qp *, struct ib_qp_attr *, int, struct ib_udata *);
524 void i40iw_cq_wq_destroy(struct i40iw_device *iwdev, struct i40iw_sc_cq *cq);
526 void i40iw_cleanup_pending_cqp_op(struct i40iw_device *iwdev);
527 void i40iw_rem_pdusecount(struct i40iw_pd *iwpd, struct i40iw_device *iwdev);
528 void i40iw_add_pdusecount(struct i40iw_pd *iwpd);
529 void i40iw_rem_devusecount(struct i40iw_device *iwdev);
530 void i40iw_add_devusecount(struct i40iw_device *iwdev);
531 void i40iw_hw_modify_qp(struct i40iw_device *iwdev, struct i40iw_qp *iwqp,
532 struct i40iw_modify_qp_info *info, bool wait);
534 void i40iw_qp_suspend_resume(struct i40iw_sc_dev *dev,
535 struct i40iw_sc_qp *qp,
537 enum i40iw_status_code i40iw_manage_qhash(struct i40iw_device *iwdev,
538 struct i40iw_cm_info *cminfo,
539 enum i40iw_quad_entry_type etype,
540 enum i40iw_quad_hash_manage_type mtype,
543 void i40iw_receive_ilq(struct i40iw_sc_vsi *vsi, struct i40iw_puda_buf *rbuf);
544 void i40iw_free_sqbuf(struct i40iw_sc_vsi *vsi, void *bufp);
545 void i40iw_free_qp_resources(struct i40iw_device *iwdev,
546 struct i40iw_qp *iwqp,
548 enum i40iw_status_code i40iw_obj_aligned_mem(struct i40iw_device *iwdev,
549 struct i40iw_dma_mem *memptr,
552 void i40iw_request_reset(struct i40iw_device *iwdev);
553 void i40iw_destroy_rdma_device(struct i40iw_ib_device *iwibdev);
554 void i40iw_setup_cm_core(struct i40iw_device *iwdev);
555 void i40iw_cleanup_cm_core(struct i40iw_cm_core *cm_core);
556 void i40iw_process_ceq(struct i40iw_device *, struct i40iw_ceq *iwceq);
557 void i40iw_process_aeq(struct i40iw_device *);
558 void i40iw_next_iw_state(struct i40iw_qp *iwqp,
559 u8 state, u8 del_hash,
560 u8 term, u8 term_len);
561 int i40iw_send_syn(struct i40iw_cm_node *cm_node, u32 sendack);
562 int i40iw_send_reset(struct i40iw_cm_node *cm_node);
563 struct i40iw_cm_node *i40iw_find_node(struct i40iw_cm_core *cm_core,
569 bool accelerated_list);
571 enum i40iw_status_code i40iw_hw_flush_wqes(struct i40iw_device *iwdev,
572 struct i40iw_sc_qp *qp,
573 struct i40iw_qp_flush_info *info,
576 void i40iw_gen_ae(struct i40iw_device *iwdev,
577 struct i40iw_sc_qp *qp,
578 struct i40iw_gen_ae_info *info,
581 void i40iw_copy_ip_ntohl(u32 *dst, __be32 *src);
582 struct ib_mr *i40iw_reg_phys_mr(struct ib_pd *ib_pd,
588 int i40iw_inetaddr_event(struct notifier_block *notifier,
591 int i40iw_inet6addr_event(struct notifier_block *notifier,
594 int i40iw_net_event(struct notifier_block *notifier,
597 int i40iw_netdevice_event(struct notifier_block *notifier,