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
117 #define I40IW_MTU_TO_MSS 40
118 #define I40IW_DEFAULT_MSS 1460
120 struct i40iw_cqp_compl_info {
128 #define i40iw_pr_err(fmt, args ...) pr_err("%s: "fmt, __func__, ## args)
130 #define i40iw_pr_info(fmt, args ...) pr_info("%s: " fmt, __func__, ## args)
132 #define i40iw_pr_warn(fmt, args ...) pr_warn("%s: " fmt, __func__, ## args)
134 struct i40iw_cqp_request {
135 struct cqp_commands_info info;
136 wait_queue_head_t waitq;
137 struct list_head list;
139 void (*callback_fcn)(struct i40iw_cqp_request*, u32);
141 struct i40iw_cqp_compl_info compl_info;
148 struct i40iw_sc_cqp sc_cqp;
149 spinlock_t req_lock; /*cqp request list */
150 wait_queue_head_t waitq;
151 struct i40iw_dma_mem sq;
152 struct i40iw_dma_mem host_ctx;
154 struct i40iw_cqp_request *cqp_requests;
155 struct list_head cqp_avail_reqs;
156 struct list_head cqp_pending_reqs;
162 struct i40iw_sc_cq sc_cq;
163 spinlock_t lock; /* ccq control */
164 wait_queue_head_t waitq;
165 struct i40iw_dma_mem mem_cq;
166 struct i40iw_dma_mem shadow_area;
170 struct i40iw_sc_ceq sc_ceq;
171 struct i40iw_dma_mem mem;
174 struct i40iw_device *iwdev;
175 struct tasklet_struct dpc_tasklet;
179 struct i40iw_sc_aeq sc_aeq;
180 struct i40iw_dma_mem mem;
183 struct i40iw_arp_entry {
185 u8 mac_addr[ETH_ALEN];
188 enum init_completion_state {
204 struct i40iw_msix_vector {
211 #define I40IW_MSIX_TABLE_SIZE 65
213 struct virtchnl_work {
214 struct work_struct work;
216 struct i40iw_cqp_request *cqp_request;
217 struct i40iw_virtchnl_work_info work_info;
221 struct i40e_qvlist_info;
223 struct i40iw_device {
224 struct i40iw_ib_device *iwibdev;
225 struct net_device *netdev;
226 wait_queue_head_t vchnl_waitq;
227 struct i40iw_sc_dev sc_dev;
228 struct i40iw_handler *hdl;
229 struct i40e_info *ldev;
230 struct i40e_client *client;
232 struct i40iw_cm_core cm_core;
233 unsigned long *mem_resources;
234 unsigned long *allocated_qps;
235 unsigned long *allocated_cqs;
236 unsigned long *allocated_mrs;
237 unsigned long *allocated_pds;
238 unsigned long *allocated_arps;
239 struct i40iw_qp **qp_table;
242 struct i40iw_msix_vector *iw_msixtbl;
243 struct i40e_qvlist_info *iw_qvlist;
245 struct i40iw_hmc_pble_rsrc *pble_rsrc;
246 struct i40iw_arp_entry *arp_table;
247 struct i40iw_cqp cqp;
248 struct i40iw_ccq ccq;
250 struct i40iw_ceq *ceqlist;
251 struct i40iw_aeq aeq;
254 spinlock_t resource_lock; /* hw resource access */
255 spinlock_t qptable_lock;
258 u32 of_device_registered;
260 u32 device_cap_flags;
261 unsigned long db_start;
268 bool push_mode; /* Initialized from parameter passed to driver */
271 struct mutex pbl_mutex;
272 struct tasklet_struct dpc_tasklet;
273 struct workqueue_struct *virtchnl_wq;
274 struct virtchnl_work virtchnl_w[I40IW_MAX_PE_ENABLED_VF_COUNT];
275 struct i40iw_dma_mem obj_mem;
276 struct i40iw_dma_mem obj_next;
279 struct workqueue_struct *param_wq;
280 atomic_t params_busy;
282 enum init_completion_state init_state;
283 u16 mac_ip_table_idx;
300 struct i40iw_ib_device {
301 struct ib_device ibdev;
302 struct i40iw_device *iwdev;
305 struct i40iw_handler {
306 struct list_head list;
307 struct i40e_client *client;
308 struct i40iw_device device;
309 struct i40e_info ldev;
313 * to_iwdev - get device
316 static inline struct i40iw_device *to_iwdev(struct ib_device *ibdev)
318 return container_of(ibdev, struct i40iw_ib_device, ibdev)->iwdev;
322 * to_ucontext - get user context
323 * @ibucontext: ib user context
325 static inline struct i40iw_ucontext *to_ucontext(struct ib_ucontext *ibucontext)
327 return container_of(ibucontext, struct i40iw_ucontext, ibucontext);
331 * to_iwpd - get protection domain
334 static inline struct i40iw_pd *to_iwpd(struct ib_pd *ibpd)
336 return container_of(ibpd, struct i40iw_pd, ibpd);
340 * to_iwmr - get device memory region
341 * @ibdev: ib memory region
343 static inline struct i40iw_mr *to_iwmr(struct ib_mr *ibmr)
345 return container_of(ibmr, struct i40iw_mr, ibmr);
349 * to_iwmr_from_ibfmr - get device memory region
352 static inline struct i40iw_mr *to_iwmr_from_ibfmr(struct ib_fmr *ibfmr)
354 return container_of(ibfmr, struct i40iw_mr, ibfmr);
358 * to_iwmw - get device memory window
359 * @ibmw: ib memory window
361 static inline struct i40iw_mr *to_iwmw(struct ib_mw *ibmw)
363 return container_of(ibmw, struct i40iw_mr, ibmw);
367 * to_iwcq - get completion queue
370 static inline struct i40iw_cq *to_iwcq(struct ib_cq *ibcq)
372 return container_of(ibcq, struct i40iw_cq, ibcq);
376 * to_iwqp - get device qp
379 static inline struct i40iw_qp *to_iwqp(struct ib_qp *ibqp)
381 return container_of(ibqp, struct i40iw_qp, ibqp);
385 void i40iw_add_ref(struct ib_qp *);
386 void i40iw_rem_ref(struct ib_qp *);
387 struct ib_qp *i40iw_get_qp(struct ib_device *, int);
389 void i40iw_flush_wqes(struct i40iw_device *iwdev,
390 struct i40iw_qp *qp);
392 void i40iw_manage_arp_cache(struct i40iw_device *iwdev,
393 unsigned char *mac_addr,
398 int i40iw_manage_apbvt(struct i40iw_device *iwdev,
399 u16 accel_local_port,
402 struct i40iw_cqp_request *i40iw_get_cqp_request(struct i40iw_cqp *cqp, bool wait);
403 void i40iw_free_cqp_request(struct i40iw_cqp *cqp, struct i40iw_cqp_request *cqp_request);
404 void i40iw_put_cqp_request(struct i40iw_cqp *cqp, struct i40iw_cqp_request *cqp_request);
407 * i40iw_alloc_resource - allocate a resource
408 * @iwdev: device pointer
409 * @resource_array: resource bit array:
410 * @max_resources: maximum resource number
411 * @req_resources_num: Allocated resource number
412 * @next: next free id
414 static inline int i40iw_alloc_resource(struct i40iw_device *iwdev,
415 unsigned long *resource_array,
417 u32 *req_resource_num,
423 spin_lock_irqsave(&iwdev->resource_lock, flags);
424 resource_num = find_next_zero_bit(resource_array, max_resources, *next);
425 if (resource_num >= max_resources) {
426 resource_num = find_first_zero_bit(resource_array, max_resources);
427 if (resource_num >= max_resources) {
428 spin_unlock_irqrestore(&iwdev->resource_lock, flags);
432 set_bit(resource_num, resource_array);
433 *next = resource_num + 1;
434 if (*next == max_resources)
436 spin_unlock_irqrestore(&iwdev->resource_lock, flags);
437 *req_resource_num = resource_num;
443 * i40iw_is_resource_allocated - detrmine if resource is
445 * @iwdev: device pointer
446 * @resource_array: resource array for the resource_num
447 * @resource_num: resource number to check
449 static inline bool i40iw_is_resource_allocated(struct i40iw_device *iwdev,
450 unsigned long *resource_array,
456 spin_lock_irqsave(&iwdev->resource_lock, flags);
458 bit_is_set = test_bit(resource_num, resource_array);
459 spin_unlock_irqrestore(&iwdev->resource_lock, flags);
465 * i40iw_free_resource - free a resource
466 * @iwdev: device pointer
467 * @resource_array: resource array for the resource_num
468 * @resource_num: resource number to free
470 static inline void i40iw_free_resource(struct i40iw_device *iwdev,
471 unsigned long *resource_array,
476 spin_lock_irqsave(&iwdev->resource_lock, flags);
477 clear_bit(resource_num, resource_array);
478 spin_unlock_irqrestore(&iwdev->resource_lock, flags);
482 * to_iwhdl - Get the handler from the device pointer
483 * @iwdev: device pointer
485 static inline struct i40iw_handler *to_iwhdl(struct i40iw_device *iw_dev)
487 return container_of(iw_dev, struct i40iw_handler, device);
490 struct i40iw_handler *i40iw_find_netdev(struct net_device *netdev);
493 * iw_init_resources -
495 u32 i40iw_initialize_hw_resources(struct i40iw_device *iwdev);
497 int i40iw_register_rdma_device(struct i40iw_device *iwdev);
498 void i40iw_port_ibevent(struct i40iw_device *iwdev);
499 int i40iw_cm_disconn(struct i40iw_qp *);
500 void i40iw_cm_disconn_worker(void *);
501 int mini_cm_recv_pkt(struct i40iw_cm_core *, struct i40iw_device *,
504 enum i40iw_status_code i40iw_handle_cqp_op(struct i40iw_device *iwdev,
505 struct i40iw_cqp_request *cqp_request);
506 enum i40iw_status_code i40iw_add_mac_addr(struct i40iw_device *iwdev,
507 u8 *mac_addr, u8 *mac_index);
508 int i40iw_modify_qp(struct ib_qp *, struct ib_qp_attr *, int, struct ib_udata *);
510 void i40iw_rem_pdusecount(struct i40iw_pd *iwpd, struct i40iw_device *iwdev);
511 void i40iw_add_pdusecount(struct i40iw_pd *iwpd);
512 void i40iw_hw_modify_qp(struct i40iw_device *iwdev, struct i40iw_qp *iwqp,
513 struct i40iw_modify_qp_info *info, bool wait);
515 enum i40iw_status_code i40iw_manage_qhash(struct i40iw_device *iwdev,
516 struct i40iw_cm_info *cminfo,
517 enum i40iw_quad_entry_type etype,
518 enum i40iw_quad_hash_manage_type mtype,
521 void i40iw_receive_ilq(struct i40iw_sc_dev *dev, struct i40iw_puda_buf *rbuf);
522 void i40iw_free_sqbuf(struct i40iw_sc_dev *dev, void *bufp);
523 void i40iw_free_qp_resources(struct i40iw_device *iwdev,
524 struct i40iw_qp *iwqp,
526 enum i40iw_status_code i40iw_obj_aligned_mem(struct i40iw_device *iwdev,
527 struct i40iw_dma_mem *memptr,
530 void i40iw_request_reset(struct i40iw_device *iwdev);
531 void i40iw_destroy_rdma_device(struct i40iw_ib_device *iwibdev);
532 void i40iw_setup_cm_core(struct i40iw_device *iwdev);
533 void i40iw_cleanup_cm_core(struct i40iw_cm_core *cm_core);
534 void i40iw_process_ceq(struct i40iw_device *, struct i40iw_ceq *iwceq);
535 void i40iw_process_aeq(struct i40iw_device *);
536 void i40iw_next_iw_state(struct i40iw_qp *iwqp,
537 u8 state, u8 del_hash,
538 u8 term, u8 term_len);
539 int i40iw_send_syn(struct i40iw_cm_node *cm_node, u32 sendack);
540 struct i40iw_cm_node *i40iw_find_node(struct i40iw_cm_core *cm_core,
547 enum i40iw_status_code i40iw_hw_flush_wqes(struct i40iw_device *iwdev,
548 struct i40iw_sc_qp *qp,
549 struct i40iw_qp_flush_info *info,
552 void i40iw_copy_ip_ntohl(u32 *dst, __be32 *src);
553 struct ib_mr *i40iw_reg_phys_mr(struct ib_pd *ib_pd,
559 int i40iw_inetaddr_event(struct notifier_block *notifier,
562 int i40iw_inet6addr_event(struct notifier_block *notifier,
565 int i40iw_net_event(struct notifier_block *notifier,