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 "i40iw_ucontext.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 #define I40IW_MTU_TO_MSS 40
123 #define I40IW_DEFAULT_MSS 1460
125 struct i40iw_cqp_compl_info
{
133 #define i40iw_pr_err(fmt, args ...) pr_err("%s: "fmt, __func__, ## args)
135 #define i40iw_pr_info(fmt, args ...) pr_info("%s: " fmt, __func__, ## args)
137 #define i40iw_pr_warn(fmt, args ...) pr_warn("%s: " fmt, __func__, ## args)
139 struct i40iw_cqp_request
{
140 struct cqp_commands_info info
;
141 wait_queue_head_t waitq
;
142 struct list_head list
;
144 void (*callback_fcn
)(struct i40iw_cqp_request
*, u32
);
146 struct i40iw_cqp_compl_info compl_info
;
153 struct i40iw_sc_cqp sc_cqp
;
154 spinlock_t req_lock
; /*cqp request list */
155 wait_queue_head_t waitq
;
156 struct i40iw_dma_mem sq
;
157 struct i40iw_dma_mem host_ctx
;
159 struct i40iw_cqp_request
*cqp_requests
;
160 struct list_head cqp_avail_reqs
;
161 struct list_head cqp_pending_reqs
;
167 struct i40iw_sc_cq sc_cq
;
168 spinlock_t lock
; /* ccq control */
169 wait_queue_head_t waitq
;
170 struct i40iw_dma_mem mem_cq
;
171 struct i40iw_dma_mem shadow_area
;
175 struct i40iw_sc_ceq sc_ceq
;
176 struct i40iw_dma_mem mem
;
179 struct i40iw_device
*iwdev
;
180 struct tasklet_struct dpc_tasklet
;
184 struct i40iw_sc_aeq sc_aeq
;
185 struct i40iw_dma_mem mem
;
188 struct i40iw_arp_entry
{
190 u8 mac_addr
[ETH_ALEN
];
193 enum init_completion_state
{
208 struct i40iw_msix_vector
{
215 struct l2params_work
{
216 struct work_struct work
;
217 struct i40iw_device
*iwdev
;
218 struct i40iw_l2params l2params
;
221 #define I40IW_MSIX_TABLE_SIZE 65
223 struct virtchnl_work
{
224 struct work_struct work
;
226 struct i40iw_cqp_request
*cqp_request
;
227 struct i40iw_virtchnl_work_info work_info
;
231 struct i40e_qvlist_info
;
233 struct i40iw_device
{
234 struct i40iw_ib_device
*iwibdev
;
235 struct net_device
*netdev
;
236 wait_queue_head_t vchnl_waitq
;
237 struct i40iw_sc_dev sc_dev
;
238 struct i40iw_sc_vsi vsi
;
239 struct i40iw_handler
*hdl
;
240 struct i40e_info
*ldev
;
241 struct i40e_client
*client
;
243 struct i40iw_cm_core cm_core
;
245 unsigned long *allocated_qps
;
246 unsigned long *allocated_cqs
;
247 unsigned long *allocated_mrs
;
248 unsigned long *allocated_pds
;
249 unsigned long *allocated_arps
;
250 struct i40iw_qp
**qp_table
;
253 struct i40iw_msix_vector
*iw_msixtbl
;
254 struct i40e_qvlist_info
*iw_qvlist
;
256 struct i40iw_hmc_pble_rsrc
*pble_rsrc
;
257 struct i40iw_arp_entry
*arp_table
;
258 struct i40iw_cqp cqp
;
259 struct i40iw_ccq ccq
;
261 struct i40iw_ceq
*ceqlist
;
262 struct i40iw_aeq aeq
;
265 spinlock_t resource_lock
; /* hw resource access */
266 spinlock_t qptable_lock
;
269 u32 of_device_registered
;
271 u32 device_cap_flags
;
272 unsigned long db_start
;
279 bool push_mode
; /* Initialized from parameter passed to driver */
282 struct mutex pbl_mutex
;
283 struct tasklet_struct dpc_tasklet
;
284 struct workqueue_struct
*virtchnl_wq
;
285 struct virtchnl_work virtchnl_w
[I40IW_MAX_PE_ENABLED_VF_COUNT
];
286 struct i40iw_dma_mem obj_mem
;
287 struct i40iw_dma_mem obj_next
;
290 struct workqueue_struct
*param_wq
;
291 atomic_t params_busy
;
292 enum init_completion_state init_state
;
293 u16 mac_ip_table_idx
;
314 wait_queue_head_t close_wq
;
315 atomic64_t use_count
;
318 struct i40iw_ib_device
{
319 struct ib_device ibdev
;
320 struct i40iw_device
*iwdev
;
323 struct i40iw_handler
{
324 struct list_head list
;
325 struct i40e_client
*client
;
326 struct i40iw_device device
;
327 struct i40e_info ldev
;
331 * to_iwdev - get device
334 static inline struct i40iw_device
*to_iwdev(struct ib_device
*ibdev
)
336 return container_of(ibdev
, struct i40iw_ib_device
, ibdev
)->iwdev
;
340 * to_ucontext - get user context
341 * @ibucontext: ib user context
343 static inline struct i40iw_ucontext
*to_ucontext(struct ib_ucontext
*ibucontext
)
345 return container_of(ibucontext
, struct i40iw_ucontext
, ibucontext
);
349 * to_iwpd - get protection domain
352 static inline struct i40iw_pd
*to_iwpd(struct ib_pd
*ibpd
)
354 return container_of(ibpd
, struct i40iw_pd
, ibpd
);
358 * to_iwmr - get device memory region
359 * @ibdev: ib memory region
361 static inline struct i40iw_mr
*to_iwmr(struct ib_mr
*ibmr
)
363 return container_of(ibmr
, struct i40iw_mr
, ibmr
);
367 * to_iwmr_from_ibfmr - get device memory region
370 static inline struct i40iw_mr
*to_iwmr_from_ibfmr(struct ib_fmr
*ibfmr
)
372 return container_of(ibfmr
, struct i40iw_mr
, ibfmr
);
376 * to_iwmw - get device memory window
377 * @ibmw: ib memory window
379 static inline struct i40iw_mr
*to_iwmw(struct ib_mw
*ibmw
)
381 return container_of(ibmw
, struct i40iw_mr
, ibmw
);
385 * to_iwcq - get completion queue
388 static inline struct i40iw_cq
*to_iwcq(struct ib_cq
*ibcq
)
390 return container_of(ibcq
, struct i40iw_cq
, ibcq
);
394 * to_iwqp - get device qp
397 static inline struct i40iw_qp
*to_iwqp(struct ib_qp
*ibqp
)
399 return container_of(ibqp
, struct i40iw_qp
, ibqp
);
403 void i40iw_add_ref(struct ib_qp
*);
404 void i40iw_rem_ref(struct ib_qp
*);
405 struct ib_qp
*i40iw_get_qp(struct ib_device
*, int);
407 void i40iw_flush_wqes(struct i40iw_device
*iwdev
,
408 struct i40iw_qp
*qp
);
410 void i40iw_manage_arp_cache(struct i40iw_device
*iwdev
,
411 unsigned char *mac_addr
,
416 int i40iw_manage_apbvt(struct i40iw_device
*iwdev
,
417 u16 accel_local_port
,
420 struct i40iw_cqp_request
*i40iw_get_cqp_request(struct i40iw_cqp
*cqp
, bool wait
);
421 void i40iw_free_cqp_request(struct i40iw_cqp
*cqp
, struct i40iw_cqp_request
*cqp_request
);
422 void i40iw_put_cqp_request(struct i40iw_cqp
*cqp
, struct i40iw_cqp_request
*cqp_request
);
425 * i40iw_alloc_resource - allocate a resource
426 * @iwdev: device pointer
427 * @resource_array: resource bit array:
428 * @max_resources: maximum resource number
429 * @req_resources_num: Allocated resource number
430 * @next: next free id
432 static inline int i40iw_alloc_resource(struct i40iw_device
*iwdev
,
433 unsigned long *resource_array
,
435 u32
*req_resource_num
,
441 spin_lock_irqsave(&iwdev
->resource_lock
, flags
);
442 resource_num
= find_next_zero_bit(resource_array
, max_resources
, *next
);
443 if (resource_num
>= max_resources
) {
444 resource_num
= find_first_zero_bit(resource_array
, max_resources
);
445 if (resource_num
>= max_resources
) {
446 spin_unlock_irqrestore(&iwdev
->resource_lock
, flags
);
450 set_bit(resource_num
, resource_array
);
451 *next
= resource_num
+ 1;
452 if (*next
== max_resources
)
454 *req_resource_num
= resource_num
;
455 spin_unlock_irqrestore(&iwdev
->resource_lock
, flags
);
461 * i40iw_is_resource_allocated - detrmine if resource is
463 * @iwdev: device pointer
464 * @resource_array: resource array for the resource_num
465 * @resource_num: resource number to check
467 static inline bool i40iw_is_resource_allocated(struct i40iw_device
*iwdev
,
468 unsigned long *resource_array
,
474 spin_lock_irqsave(&iwdev
->resource_lock
, flags
);
476 bit_is_set
= test_bit(resource_num
, resource_array
);
477 spin_unlock_irqrestore(&iwdev
->resource_lock
, flags
);
483 * i40iw_free_resource - free a resource
484 * @iwdev: device pointer
485 * @resource_array: resource array for the resource_num
486 * @resource_num: resource number to free
488 static inline void i40iw_free_resource(struct i40iw_device
*iwdev
,
489 unsigned long *resource_array
,
494 spin_lock_irqsave(&iwdev
->resource_lock
, flags
);
495 clear_bit(resource_num
, resource_array
);
496 spin_unlock_irqrestore(&iwdev
->resource_lock
, flags
);
500 * to_iwhdl - Get the handler from the device pointer
501 * @iwdev: device pointer
503 static inline struct i40iw_handler
*to_iwhdl(struct i40iw_device
*iw_dev
)
505 return container_of(iw_dev
, struct i40iw_handler
, device
);
508 struct i40iw_handler
*i40iw_find_netdev(struct net_device
*netdev
);
511 * iw_init_resources -
513 u32
i40iw_initialize_hw_resources(struct i40iw_device
*iwdev
);
515 int i40iw_register_rdma_device(struct i40iw_device
*iwdev
);
516 void i40iw_port_ibevent(struct i40iw_device
*iwdev
);
517 void i40iw_cm_disconn(struct i40iw_qp
*iwqp
);
518 void i40iw_cm_disconn_worker(void *);
519 int mini_cm_recv_pkt(struct i40iw_cm_core
*, struct i40iw_device
*,
522 enum i40iw_status_code
i40iw_handle_cqp_op(struct i40iw_device
*iwdev
,
523 struct i40iw_cqp_request
*cqp_request
);
524 enum i40iw_status_code
i40iw_add_mac_addr(struct i40iw_device
*iwdev
,
525 u8
*mac_addr
, u8
*mac_index
);
526 int i40iw_modify_qp(struct ib_qp
*, struct ib_qp_attr
*, int, struct ib_udata
*);
527 void i40iw_cq_wq_destroy(struct i40iw_device
*iwdev
, struct i40iw_sc_cq
*cq
);
529 void i40iw_cleanup_pending_cqp_op(struct i40iw_device
*iwdev
);
530 void i40iw_rem_pdusecount(struct i40iw_pd
*iwpd
, struct i40iw_device
*iwdev
);
531 void i40iw_add_pdusecount(struct i40iw_pd
*iwpd
);
532 void i40iw_rem_devusecount(struct i40iw_device
*iwdev
);
533 void i40iw_add_devusecount(struct i40iw_device
*iwdev
);
534 void i40iw_hw_modify_qp(struct i40iw_device
*iwdev
, struct i40iw_qp
*iwqp
,
535 struct i40iw_modify_qp_info
*info
, bool wait
);
537 void i40iw_qp_suspend_resume(struct i40iw_sc_dev
*dev
,
538 struct i40iw_sc_qp
*qp
,
540 enum i40iw_status_code
i40iw_manage_qhash(struct i40iw_device
*iwdev
,
541 struct i40iw_cm_info
*cminfo
,
542 enum i40iw_quad_entry_type etype
,
543 enum i40iw_quad_hash_manage_type mtype
,
546 void i40iw_receive_ilq(struct i40iw_sc_vsi
*vsi
, struct i40iw_puda_buf
*rbuf
);
547 void i40iw_free_sqbuf(struct i40iw_sc_vsi
*vsi
, void *bufp
);
548 void i40iw_free_qp_resources(struct i40iw_device
*iwdev
,
549 struct i40iw_qp
*iwqp
,
551 enum i40iw_status_code
i40iw_obj_aligned_mem(struct i40iw_device
*iwdev
,
552 struct i40iw_dma_mem
*memptr
,
555 void i40iw_request_reset(struct i40iw_device
*iwdev
);
556 void i40iw_destroy_rdma_device(struct i40iw_ib_device
*iwibdev
);
557 void i40iw_setup_cm_core(struct i40iw_device
*iwdev
);
558 void i40iw_cleanup_cm_core(struct i40iw_cm_core
*cm_core
);
559 void i40iw_process_ceq(struct i40iw_device
*, struct i40iw_ceq
*iwceq
);
560 void i40iw_process_aeq(struct i40iw_device
*);
561 void i40iw_next_iw_state(struct i40iw_qp
*iwqp
,
562 u8 state
, u8 del_hash
,
563 u8 term
, u8 term_len
);
564 int i40iw_send_syn(struct i40iw_cm_node
*cm_node
, u32 sendack
);
565 struct i40iw_cm_node
*i40iw_find_node(struct i40iw_cm_core
*cm_core
,
572 enum i40iw_status_code
i40iw_hw_flush_wqes(struct i40iw_device
*iwdev
,
573 struct i40iw_sc_qp
*qp
,
574 struct i40iw_qp_flush_info
*info
,
577 void i40iw_copy_ip_ntohl(u32
*dst
, __be32
*src
);
578 struct ib_mr
*i40iw_reg_phys_mr(struct ib_pd
*ib_pd
,
584 int i40iw_inetaddr_event(struct notifier_block
*notifier
,
587 int i40iw_inet6addr_event(struct notifier_block
*notifier
,
590 int i40iw_net_event(struct notifier_block
*notifier
,